bluuebunny/crossref_metadata_2025 huggingface dataset:
Is the Device-Oriented Subjective Outcome (DOSO) Independent of Personality?
Authors: Wu Yu-Hsiang , Dumanch Kelsey , Stangl Elizabeth , Miller Christi , Tremblay Kelly , Bentler Ruth
Published: March 2017

Background:Self-report questionnaires are a frequently used method of evaluating hearing aid outcomes. Studies have shown that personality can account for 5‐20% of the variance in response to self-report measures. As a result, these influences can impact results and limit
their generalizability when the purpose of the study is to examine the technological merit of hearing aids. To reduce personality influences on self-report outcome data, the Device-Oriented Subjective Outcome (DOSO) was developed. The DOSO is meant to demonstrate outcomes of the amplification
device relatively independent of the individual’s personality. Still, it is unknown if the DOSO achieves its original goal.Purpose:The purpose of this study was to examine the relationship between personality and the DOSO. The relationship between personality and several widely
used hearing-related questionnaires was also examined.Research Design:This is a nonexperimental study using a correlational design.Study Sample:A total of 119 adult hearing aid wearers participated in the study.Data Collection and Analysis:The NEO Five-Factor Inventory
was used to measure five personality traits (Neuroticism, Extraversion, Openness, Agreeableness, and Conscientiousness). The initial (unaided) hearing disablement, residual (aided) hearing disablement, and hearing aid benefit and satisfaction was measured using the DOSO, Hearing Handicap Inventory
for the Elderly/Adult, Abbreviated Profile of Hearing Aid Benefit, and Satisfaction with Amplification in Daily Life. The relationship between personality and each questionnaire was examined using a correlation analysis.Results:All of the DOSO subscales were found to be significantly
correlated to personality, regardless of whether age and better-ear hearing thresholds were controlled. Individuals who reported poorer hearing aid outcomes tended to have higher Neuroticism scores, while those who scored higher in Extraversion, Openness, and Agreeableness were more likely
to report better outcomes. Across DOSO subscales, the maximum variance explained by personality traits ranged from 6% to 11%. Consistent with the literature, ∼3‐18% of the variance of other hearing-related questionnaires was attributable to personality.Conclusions:The degree
to which personality affects the DOSO is similar to other hearing-related questionnaires. Although the variance accounted for by personality is not large, researchers and clinicians should not assume that the results of the DOSO are independent of personality.
A Universal Velocity Dispersion Profile for Pressure Supported Systems: Evidence for MONDian Gravity across Seven Orders of Magnitude in Mass
Authors: Durazo R. , Hernandez X. , Sodi B. Cervantes , Sánchez S. F.
Published: March 2017

For any MONDian extended theory of gravity where the rotation curves of spiral galaxies are explained through a change in physics rather than the hypothesis of dark matter, a generic dynamical behavior is expected for pressure supported systems: an outer flattening of the velocity dispersion profile occurring at a characteristic radius, where both the amplitude of this flat velocity dispersion and the radius at which it appears are predicted to show distinct scalings with the total mass of the system. By carefully analyzing the dynamics of globular clusters and elliptical galaxies, we are able to significantly extend the astronomical diversity of objects in which MONDian gravity has been tested, from spiral galaxies to the much larger mass range covered by pressure supported systems. We show that a universal projected velocity dispersion profile accurately describes various classes of pressure supported systems, and further, that the expectations of extended gravity are met across seven orders of magnitude in mass. These observed scalings are not expected under dark matter cosmology, and would require particular explanations tuned at the scales of each distinct astrophysical system.
A Chemical Signature from Fast-rotating Low-metallicity Massive Stars: ROA 276 in ω Centauri*
Authors: Yong David , Norris John E. , Costa Gary S. Da , Stanford Laura M. , Karakas Amanda I. , Shingles Luke J. , Hirschi Raphael , Pignatari Marco
Published: March 2017

We present a chemical abundance analysis of a metal-poor star, ROA 276, in the stellar system ω Centauri. We confirm that this star has an unusually high [Sr/Ba] abundance ratio. Additionally, ROA 276 exhibits remarkably high abundance ratios, [X/Fe], for all elements from Cu to Mo along with normal abundance ratios for the elements from Ba to Pb. The chemical abundance pattern of ROA 276, relative to a primordial ω Cen star ROA 46, is best fit by a fast-rotating low-metallicity massive stellar model of 20

, [Fe/H] = −1.8, and an initial rotation 0.4 times the critical value; no other nucleosynthetic source can match the neutron-capture element distribution. ROA 276 arguably offers the most definitive proof to date that fast-rotating massive stars contributed to the production of heavy elements in the early universe.
New Evidence for the Dynamical Decay of a Multiple System in the Orion Kleinmann–Low Nebula*
Authors: Luhman K. L. , Robberto M. , Tan J. C. , Andersen M. , Gabellini M. Giulia Ubeira , Manara C. F. , Platais I. , Ubeda L.
Published: March 2017

We have measured astrometry for members of the Orion Nebula Cluster with images obtained in 2015 with the Wide Field Camera 3 on board the Hubble Space Telescope. By comparing those data to previous measurements with the Near-Infrared Camera and Multi-Object Spectrometer on Hubble in 1998, we have discovered that a star in the Kleinmann–Low Nebula, source x from Lonsdale et al., is moving with an unusually high proper motion of 29 mas yr−1, which corresponds to 55 km s−1 at the distance of Orion. Previous radio observations have found that three other stars in the Kleinmann–Low Nebula (the Becklin–Neugebauer object and sources I and n) have high proper motions (5–14 mas yr−1) and were near a single location ∼540 years ago, and thus may have been members of a multiple system that dynamically decayed. The proper motion of source x is consistent with ejection from that same location 540 years ago, which provides strong evidence that the dynamical decay did occur and that the runaway star BN originated in the Kleinmann–Low Nebula rather than the nearby Trapezium cluster. However, our constraint on the motion of source n is significantly smaller than the most recent radio measurement, which indicates that it did not participate in the event that ejected the other three stars.
Reliability and Validity of the Tender and Swollen Joint Counts and the Modified Rodnan Skin Score in Early Diffuse Cutaneous Systemic Sclerosis: Analysis from the Prospective Registry of Early Systemic Sclerosis Cohort
Authors: Gordon Jessica K. , Girish Gandikota , Berrocal Veronica J. , Zhang Meng , Hatzis Christopher , Assassi Shervin , Bernstein Elana J. , Domsic Robyn T. , Hant Faye N. , Hinchcliff Monique , Schiopu Elena , Steen Virginia D. , Frech Tracy M. , Khanna Dinesh
Published: March 2017

Objective.

To determine the inter/intraobserver reliability of the tender and swollen joint counts (TJC, SJC) and the modified Rodnan Skin Score (mRSS) in diffuse cutaneous systemic sclerosis (dcSSc) and to assess content validity of the TJC/SJC.

Methods.

Ten rheumatologists completed the SJC, TJC, and mRSS on 7 patients. Musculoskeletal ultrasound (MSUS) was performed.

Results.

Interobserver and intraobserver reliability for the TJC was 0.97 and 0.99, for the SJC was 0.24 and 0.71, and for the mRSS was 0.81 and 0.94, respectively. MSUS abnormalities did not correspond with SJC/TJC.

Conclusion.

We demonstrate excellent inter- and intraobserver reliability for the mRSS and TJC in dcSSc. However, the SJC and TJC did not correspond to MSUS.
Wer waren die Übersetzer von Caspar Brülow? Biographische Beiträge aus den Archiven
Authors: Bueno-Edwards Alexander
Published: March 2017

Le présent article fournit des informations à ce jour non publiées sur la biographie des traducteurs en allemand des pièces latines de Caspar Brülow. Ces cinq personnages – Isaak Fröreisen, Johann Georg Wolckenstein, Johann Christoph Stipitius, Isaak Habrecht le Jeune et Christopher Kernmann (Kerman) – étaient en relation avec les institutions académiques strasbourgeoises. Dans un premier temps, l’étude relève les défis et les difficultés présentés par les divers matériaux se rapportant à ces personnages et conservés aux Archives Municipales de Strasbourg. Dans un second temps, on donne les informations relatives aux divers traducteurs. Quelques-uns parmi ces derniers eurent à leur époque une plus grande importance que d’autres et, en tant que tels, ont laissé une trace plus grande dans les archives. Pour autant, une quantité surprenante d’informations a survécu, y compris pour les personnages les plus obscurs.
Les associations participent aux mutations de l’emploi
Authors: Hély Matthieu
Published: March 2017

Les associations intervenant auprès des populations étrangères sont-elles à part ? Le mouvement de précarisation en cours est-il lié à leur secteur d’intervention et, parallèlement, aux politiques migratoires, ou commun à tout le secteur associatif ? La question peut se poser. Entretien avec Matthieu Hély, sociologue dont les recherches portent sur le travail associatif.
ANALYSIS FOR THERMAL BEHAVIOR AND ENERGY SAVINGS OF A SEMI-DETACHED HOUSE WITH DIFFERENT INSULATION STRATEGIES IN A HOT SEMI-ARID CLIMATE
Authors: Sobhy Issam , Brakez Abderrahim , Benhamou Brahim
Published: March 2017

The purpose of this research is to assess thermal performance and energy saving of a residential building in the hot semi-arid climate of Marrakech (Morocco). The studied house is built as usual in Marrakech without any thermal insulation except for its external walls, facing East and West, which are double walls with a 5 cm air gap in between (“cavity wall” technique). The cavity wall effective thermal conductivity was carefully calculated taking into account both radiation and convection heat transfers. Experimental results, obtained from winter and summer monitoring of the house, show well dampening of air temperature, thanks to its thermal inertia. However, this temperature remained outside the standard thermal comfort zone leading to large cooling/heating load. Simulation results indicate that the cavity wall contributes to an overall reduction of 13% and 5% of the house heating and cooling loads respectively. Moreover, the addition of XPS roof thermal insulation significantly enhances the heating and cooling energy savings to 26% and 40% respectively.
The Brain Tumor Segmentation Using Fuzzy C-Means Technique
Authors: Rani Jyotsna , Kumar Ram , Talukdar Fazal A. , Dey Nilanjan
Published: March 2017

Image segmentation is a technique which divides an image into its constituent regions or objects. Segmentation continues till we reach our area of interest or the specified object of target. This field offers vast future scope and challenges for the researchers. This proposal uses the fuzzy c mean technique to segment the different MRI brain tumor images. This proposal also shows the comparative results of Thresholding, K-means clustering and Fuzzy c- means clustering. Dice coefficient and Jaccards measure is used for accuracy of the segmentation in this proposal. Experimental results demonstrate the performance of the designed method.
Optical Analysis of Solar Concentrators Using Photogrammetry Process
Authors: Skouri Safa , Bouadila Salwa
Published: March 2017

As the optical efficiency of solar concentrators has a high impact on its thermal performance. However a qualification method determining the geometrical accuracy of a solar concentrator system is necessary. The purpose of this chapter is to gives an optical analysis of solar concentrator with an imaging process in order to improve the thermal efficiency of the solar concentrator. In this order measurement techniques used to determine geometric errors of the solar concentrating system have been described. Intercept factor, slope error and displacement error have been identified and analyzed. Examples of the intercept factor for concentrator reflector along with optical efficiency has been developed and determined related to the experimental results given by photogrammetry measurement technique.
New Advances in Multidimensional Processing for Thermal Image Quality Enhancement
Authors: Restrepo-Girón Andrés David , Loaiza-Correa Humberto
Published: March 2017

This chapter presents three recent methodologies about multidimensional processing for signal to noise ratio (SNR) and thermal contrast enhancement on sequences of thermographic images, acquired from active pulsed thermography experiments over composite slabs, mainly, carbon fiber reinforced plastic (CFRP). The first technique corresponds to noise pre-processing by means of iterative 3D filtering to take advantage of the high space-time correlation in thermal sequences; the other two techniques correspond to thermal contrast enhancement processing: one of them using an atypical median filtering scheme, and the other based on heat propagation discrete models. Beginning with their heuristic and mathematical foundations, and following with the algorithmic procedures development, advantages and limitations will be shown through suitable indexes for evaluation, and some comparisons with other similar techniques.
Apps in Hospitality and Tourism
Authors: Rezaei Sajad , Shahijan Milad Kalantari
Published: March 2017

The development of Apps usage in the tourism industry is along with the rise of relevant technologies that has affected the tourism industry all around the world. In order to build a competitive brand, firms are forced to implement the information technology related functions in their core business model. This chapter mainly focuses on the impact of Apps implementation in hospitality and tourism sector and conceptually propose that how branded Apps could yield tourist satisfaction and loyalty. Apps awareness, Apps quality and Apps image are proposed as several indicators of traveler's satisfaction and loyalty. The chapter argue that branding makes a business advantage; the brand follows indication of quality and assurance to the buyer and also special characteristics that could inspire consumers to buy products or services that are branded.
The Future of Apps
Authors: Linnes Cathrine , Metcalf Brian R. , Shahijan Milad Kalantari
Published: March 2017

Apps have the solutions for many things and consumers have them right in their pocket. Just think about a holiday. From the booking of flight tickets, making a hotel reservation, sharing it with your friends, ordering a rental car, paying for apparel, and so on. You can use your smartphone for almost everything these days and most apps are connected with social media sites. Even though many users do not want to pay lots of money for apps, experts still forecast huge growth. There is a big different on how consumers used apps 5 years ago and how they use apps today. Today consumers are demanding apps that can fulfil many different needs and are much more individualized. This high and consuming demand forces the developers the use large amounts of data before they can be able to meet these needs.
Bathurst Island Group and Byam Martin Island, Arctic Canada (operation Bathurst Island)
Authors: Kerr J W
Published: March 2017

The Bathurst Island group, and Byam Martin Island, together occupy about 8,000 square miles of land area. They are situated near the geographic center of the Canadian Arctic Archipelago and encompass the north magnetic pole. Most of the area is covered by
sedimentary rocks of Ordovician to Late Devonian age, with a composite exposed thickness of approximately 20,000 feet. Exposures of younger rocks are limited to small areas in the northwest and southeast. The oldest rocks exposed are Ordovician evaporites and carbonates; these are overlain by Upper
Ordovician to Lower Devonian black graptolitic shale. The black shale sequence is followed by increasingly coarse-grained elastic rocks, including, turbidites, of Early Devonian age. Unconformities and marked facies changes indicate three pulses of Devonian uplift of eastern Bathurst Island. Middle
Devonian rocks are mainly carbonates grading basinward to shales. The Upper Devonian is represented by a thick sequence of paralic and nonmarine quartz-rich elastic sedimentary rocks which blanket the whole island group. The next record of sedimentation consists of a few hundred feet of Permian and
Mesozoic strata which occur on Cameron and Helena Islands, in the northern part of the area. Upper Cretaceous plant-bearing sandstone and shale with an interbedded basalt flow occurs in a graben in southeastern Bathurst Island; nearby dykes and plugs probably are related to the flows. Two fold belts
intersect at near right angles in eastern Bathurst Island. The north-south trending Cornwallis Fold Belt along the east coast first developed in Early Devonian time, and the east-west Parry Islands Fold Belt developed later. The younger belt had its first and main deformation between Late Devonian
and Early Permian time in the Ellesmerian orogeny. A third period of deformation affected the entire area during the Late Cretaceous and probably Tertiary time. Included in this episode were faulting, intrusion and further folding of both the
Cornwallis and Parry Islands Fold Belts. The Cornwallis Fold Belt largely resulted from differential vertical movement in the underlying Precambrian basement. The Parry Islands Fold Belt is an allochthone that moved southward, above a décollement that apparently is in the Ordovician evaporites.
A zone of left lateral strike slip movement in the western part of the Cornwallis Fold Belt delimits the eastern boundary of the allochthone. Western parts of the Cornwallis Fold Belt were involved in the décollement.
Tectonic styles of northern Yukon Territory and northwestern District of Mackenzie
Authors: Norris D K
Published: March 2017

A diversity of tectonic styles is displayed in northern Yukon Territory and northwestern District of Mackenzie. Some tectonic elements of the region, such as Barn and White Uplifts, for example, are basically fault-bounded, ovate domes, with cores of Paleozoic
and possibly older carbonate and elastic rocks, isolated from one another by structural depressions largely filled with Mesozoic elastic sequences. Other elements are elongate and may trend parallel or subparallel to one another. Because some elements were tectonically deformed more than once there
may be a stacking of styles, as in Romanzof Uplift, where open folds in Carboniferous and Permian carbonates
and elastics rest with profound unconformity on acutely folded, faulted and cleaved rocks assumed to be no younger than Silurian. Each deformed body served as a platform for the next younger sedimentary succession and may have acquired cumulative structural features characteristic of the styles of
all younger deformations. The belt of Cretaceous, south-dipping thrust faults on the south flank of Brooks Range in Alaska is comparable in style to that along the eastern margin of the Canadian Cordillera about the latitude of the 49th Parallel. It continues southeastward into Canada, diminishing
in number of faults and in net displacement towards Barn Uplift, southeast of which steep faults, some with demonstrable strike-slip, become major components of the structural style. The latter faults, active at least locally into the mid-Tertiary, also served to transport differentially the
northern Yukon tectonic complex towards Beaufort Shelf and Canada Basin. Beyond this complex in northwestern District of Mackenzie is Kugaluk Homocline, a gently northwest-dipping layered succession of Tertiary sediments flanked on the southeast by Campbell Uplift. Campbell Uplift is the northeast
continuation of Aklavik Arch,
a composite structural high comprising individual, northeast trending uplifts arranged right-hand en echelon. The arch extends from northern Yukon to Beaufort Sea and may possibly be continuous with Minto Arch in the Arctic Archipelago. Carbonate accumulations on its flanks comparable to those seen
in White Uplift and vicinity or penetrated by the drill in northern Eagle Basin may well occur beneath suitable cap rocks and greatly enhance the economic prospects of the Delta region and Beaufort Shelf.
Tips on organizing Arctic geological field work
Authors: Kerr J W
Published: March 2017

The Geological Survey of Canada has developed efficient methods of conducting field work in the Canadian Arctic Islands, and this report summarizes those methods. It deals with important and potentially dangerous or costly problems, as well as the routine matters
of camp life.
Distribution and correlation of the three oldest paleozoic rock formations in the Boothia peninsula region, canadian Arctic Archipelago
Authors: Christie R L
Published: March 2017

Three newly named lower Paleozoic formations on Boothia Peninsula nonconformably overlie the Canadian Shield and include for this region the bedded rocks of the Interior Platform. The lower Paleozoic strata are preserved on the flanks of Boothia Uplift and as
outliers within the Precambrian terrane. The outliers are made up largely of the lower two formations, whereas the upper formation underlies large areas east end west of the Boothia Precambrian belt. The basal unit the Boothia Felix Formation, comprises sandstone and sandy dolomite, is about 350
feet (110m) thick. and contains Middle Cambrian fossils. Overlying is the Netsilik Formation of silty and sandy dolomite, dolomite, and intraformational conglomerate and breccia; this unit is about 500 feet (150m) thick and has yielded Lower Ordovician fossils. The youngest unit is the Franklin
Strait Formation, which comprises dolomite and sandy dolomite, is more than 2,000 feet (600 m) thick, and probably ranges in age from Middle Ordovician to Middle Silurian.
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Reconnaissance geology of Aishihik lake, Snag and Part of Stewart River map-areas, west-central Yukon
Authors: Tempelman-Kluit D J
Published: March 2017

Aishihik Lake, Snag and part of Stewart River map-areas underlie an area of more than 13,000 square miles, almost entirely within western Yukon Plateau, in west-central Yukon Territory. Metamorphosed pelitic and igneous rocks of Proterozoic and/or Paleozoic age,
included in the Yukon Group, underlie much of the region. They are intruded by large batholiths of hornblende, granodiorite, quartz monzonite and pink quartz monzonite of various Mesozoic ages. In the east part of the region Jurassic and Lower Cretaceous coarse elastic, immature sedimentary rocks of
the Laberge Group and Tantalus Formations are faulted against this crystalline terrane. A suite of acid high-level plutonic, subvolcanic and volcanic rocks, of Eocene age, the Nisling Range Alaskite and Mount Nansen Group, discordantly intrudes and overlies the older rocks. They impart a distinct
northward trend to the grain of the country. Basalt and conglomerate of the Carmacks Group (Eocene to Miocene) overlie all older rocks with distinct unconformity and are laid down on a surface of moderate relief that closely approximates the modern topography. Major and minor structures in the
metamorphic rocks trend generally northwest and the folded layering is a coarse schistosity that mimics a crenulation foliation. Linear elements in the rocks predate the latest folding and metamorphism which probably took place during the Early Mesozoic. Rocks of the Laberge Group are thrown into
large southwestward verging folds. No recrystallization accompanied this deformation which took place in midCretaceous time. Mineralization discovered to date is of two types. Copper and tungsten bearing magnetite skarns in marble of the Yukon Group or in probable Triassic volcanic rocks are found
mainly in Aishihik Lake map-area. Molybdenite and chalcopyrite, disseminated in rocks of the Nisling Range Alaskite-Mount Nansen Group suite, occur in Snag and northern Aishihik Lake map-areas.
Geology and mineral deposits of Tulsequah map-area, British Columbia (104K)
Authors: Souther J G
Published: March 2017

The area comprises a deeply incised plateau, a narrow highland zone, and a mountainous area that is part of the Coast Mountains. The latter contains deeply incised valleys giving a local relief of 5,000 to 7,000 feet. Indications of Pleistocene glaciation are
found on Stikine Plateau and indicate that the ice moved southwestward through Taku Valley to the sea. A gradual retreat of present -day glaciers began in the mid- nineteenth century. The layered rocks comprise intensely folded and regionally metamorphosed Triassic, Permian and older strata,
separated by a pre-Upper Triassic unconformity from less folded Mesozoic sedimentary and volcanic rocks that have not been regionally metamorphosed . The western part of the area mapped is underlain by leucogranite to pyroxene diorite of the Coast Crystalline Belt. These granitic rocks were emplaced
between early Mesozoic and Tertiary time. All consolidated rocks in the map- area are overlain
unconformably by flat-lying late Tertiary and Pleistocene basalt. Three main episodes of tectonic activity culminating in mid -Triassic, Upper Jurassic and early Tertiary time affected the area. There is a close correlation between type of mineralization and
geological environment, and these associations are described. Brief summary descriptions of the known mineral deposits are given. Seven detailed stratigraphic sections and lists of fossils collected at various localities are presented in two appendices.
Description and biostratigraphical significance of Devonian Coral Genera Alaiophyllum and Grypophyllum in western Canada
Authors: Pedder A E H
Published: March 2017

The morphology, systematics, species composition, and distribution of the genera Alaiophyllum and Grypophyllum are reviewed. Alaiophyllum goryanovi n. sp. and Grypophyllum subtile n. sp. are described from the late Givetian Rensselandia laevis and Stringocephalus
aleskanus Zones of the central Mackenzie Valley area. Grypophyllum aquilonium n. sp. is described from the Givetian Hare Indian Formation of lower Mackenzie Valley, and G: crickmayi n. sp. is erected for specimens coming from probable Givetian strata, believed to be just younger than the aleskallus
Zone, near Great Slave Lake. Alaiophyllum mackellziense Pedder is shown to be a species of Grypophyl/um and to be an important index to the otherwise poorly fossiliferous (apart from stromatoporoids and tabulate corals) interval above Middle Devonian Stringocephalus-bearing beds, and below the Upper
Devonian Waterways Formation or its equivalents. The mackenziense Zone is equivalent to the upper hermanlli-crislallls conodont zone, which on the basis of associated goniatites in Germany, is now taken by some workers as the lowest Upper Devonian conodont zone. If this practice is maintained,
Grypophyllum is shown for the first time to extend into the base of the Upper Devonian.
Regional geochemical lake sediment survey, east-central Saskatchewan
Authors: Hornbrook E H W , Garrett R G
Published: March 2017

A regional geochemical lake sediment reconnaissance survey was undertaloen jointly by the Geological Survey of Canada and the Province of Saskatchewan in 1974 under the terms of the Canada-Saskatchewan Agreement on Mineral Exploration and Development in Northern
Saskatchewan. Centre-lake bottom sediments were collected at a density of one sample per five square miles ( 1 per 13 km2) in a 20 000 square mile ( 51 800 km2) region of the Canadian Shield and analyzed for their content of Zn, Cu, Pb, Ni, Co, Ag, Mn, U, As, Mo, Fe and Hg. The organic content was
estimated by weight loss on ignition. This paper includes a brief review of the history and development of regional lake sediment sampling including a summary description of the current methodology involved from the collection of samples to publication of the data. The data on the distribution and
concentration of the elements has delineated several element trends or regional zones of increased metal content correlative with features of economic interest. Follow-up studies in 1975 confirmed the anomalous element content of the lake sediments within the trends. The survey achieved optimum
results for U and satisfactory results for most of the
remaining elements. It is significant that Fe, Mn, and organic content do not appear to play dominating raies as scavengers producing artificial anomalies, nor is there a distinct improvement in interpretation of the raw data when extensive statistical treatment is employed.
La prospection au Canada
Authors: Lang A H
Published: March 2017

La présente étude vise à donner de la prospection classique au Canada une idée aussi complète que possible dans le cadre d'un ouvrage de format moyen. Elle se veut en outre une initiation, rapide mais à jour, aux nouvelles techniques
souterraines. Le domaine du pétrole n'y est traité qu'à titre d'information générale. Il suffit de songer à la place de l'industrie minière dans l'économie canadienne, à l'étendue de nos ressources minérales et, aussi, au fait que ces ressources
ne peuvent être reconstituées, pour saisir l'importance considérable de la prospection. La compétence des prospecteurs classiques canadiens est depuis longtemps avérée même si, professionnels ou amateurs, ils n'ont jamais reçu une véritable formation
scientifique et technique. Leur savoir, ils l'ont acquis par eux-mêmes ou en suivant des cours destinés aux adultes. Attirés, à l'origine, par l'or placérien, ils ont ensuite fait porter leurs recherches sur les filons afneurants. De l'avis des spécialistes, si les
possibilités de la prospection classique sont limitées, elles n'en resteront pas moins relativement importantes pour plusieurs années encore. Aujourd'hui, cependant, ce type de prospection a cédé le pas aux techniques modernes surtout dans la recherche de gisements
recouverts de mort-terrain ou de roche stérile. Sur cent gîtes mis en exploitation entre la fin de la deuxième guerre mondiale et 1966, quarante avaient été découverts grâce à la prospection classique, trente-deux-entièrement ou principalement- à la
suite d'études géologiques, et vingt-huit après des études géophysiques. Précisons que la part des études géophysiques s'est accrue au cours de la seconde moitié de cette période. Il faut aussi attribuer bon nombre de découvertes aux études
géochimiques. Si l'auteur, en rédigeant cette étude, a puisé d'abord à sa longue expérience à titre de géologue et d'expert-conseil auprès des prospecteurs et des compagnies minières, il a également bénéficié des conseils et des
critiques de nombreux spécialistes du Ministère et de l'extérieur.
Fifteen stratigraphic sections from the Lower Cambrian of the Mackenzie Mountains, northwestern Canada
Authors: Fritz W H
Published: March 2017

This is the second of three closely related papers describing Lower Cambrian strata in the Mackenzie Mountains. Most of the strata are located in the middle carbonate belt, a belt flanked on the northeast by an inner detrital belt and on the southwest by an outer
detrital belt. Two grand cycles (elastic-carbonate pairs) recognized earlier in the strata are divided into half-cycles and traced laterally into the present sections. Data from these sections, plus that from 10 previously described sections, are combined and interpreted in a facies distribution
fence diagram. Widespread quartzite and siltstone of the first (lowest elastic) half-cycle have been locally removed by erosion at the northwestern edge of the area, and an inter half-cycle unconformity may be present in the northeastern part of the area . Carbonates of the second half-cycle thicken
and become lighter in colour as the seaward edge of the carbonate body is approached, indicating the existence of a platform at that time . Above the carbonate plat{ orm is a thin, highly coloured sheet of elastics belonging to the third half-cycle. This sheet can be traced over the platform edge
where the elastics abruptly thicken, take on a sombre hue, and exhibit nenecontemporaneous folds. This part of the third half-cycle is assigned to the slope. The fourth half-cycle is composed of wavy limestone and a subordinate amount of siltstone that represent shelf deposits. An earlier attempt to
subdivide these strata by recognizing siltstone-limestone pairs (subcycles) is persued, and the oldest limestone and siltstone units can now be correlated with reasonable assurance, but the correlation of younger beds in the half-cycle remains tentative. The fourth half-cycle closed with the
deposition of dark shale and platy limestone over the shelf deposits during middle and late Bonnia-Olenellus Zone time. Deposition of these strata continued at an uneven rate throughout the rest of the Cambrian (Middle and Upper) and later. A sub-Upper Cambrian unconformity is present in the north
western part of the area, and a sub-Ordovician unconformity at the nearby edge of the area cuts down as far as the first half-cycle. This paper describes 333 lithologic units, 304 fossil Localities, and locates 157 1 geochemical samples that will be studied by others.
Northwest Territories preliminary geological maps, accompanied by reports
Authors: Yorath C J , Balkwill H R
Published: March 2017

Exposed rocks in the Simpson Lake map-area belong to the Cambrian, Ordovician, Devonian, and Cretaceous Systems. About 2000 feet of Paleozoic rocks, chiefly carbonates with subordinate shales, are rapped as: "Ronning Group", and Bear Rock, Hume, and Hare Indian
Formations ( from oldest to youngest). Paleozoic strata are regionally truncated by widespread, but poorly exposed, Cretaceous clastic rocks which have an estimated cumulative thickness of about 1500 feet. Informal Cretaceous units (from oldest to youngest) are the "Silty", Bentonitic", and
"Bituminous zones". Rocks in the map -area dip regionally westward and northwestward at low angles. There appear to be few structural complications, although small structures may be concealed by the extensive cover of fleistocene drift.

Exposed rocks in the Stanton map-area , which lies within the Anderson Plain and Arctic Coastal Plains, belong to the Devonian and Cretaceous Systems. Devonian rocks are represented by the Imperial Formation and occur along Kugaluk River. The remainder of the region is underlain by Lower Cretaceous
"Bentonitic zone" strata and Upper Cretaceous "Bituminous" and "Pale shale zone" strata; these rocks are best exposed along Anderson River. A thin gravel and sand unit of probable Tertiary - Quaternary age caps the plateau on the east side of Anderson River. A regional unconformity separates the
Devonian and Cretaceous successions and a regional disconformity occurs between the Lower and Upper Cretaceous rocks. Strata in the map-area dip toward the northwest at low angles. There are few structural complications. A broad, linear arch of preCretaceous age coincides with Kugaluk River and
small, tight, disharmonic folds of non-tectonic origin occur in "Bituminous zone" rocks west of Anderson River.
Lower Cambrian stratigraphy, Mackenzie Mountains, northwestern Canada
Authors: Fritz W H
Published: March 2017

Lower Cambrian strata deposited on a carbonate shelf, unstable slope, and deep basin are described from four stratigraphic sections in eastern Yukon Territory and western Northwest Territorie. Underlying the sections are predominantly barren late Precambrian(?)
and early Cambrian quartzite and siltstone that were deposited under shallow subtidal and intertidal conditions. The base of each section is believed to be near the top of the Fallotaspis Zone. Near the close of Fallotapis Zone time a carbonate shelf began forming in the east. Contemporaneously,
shallow subtidal siltstone was deposited at the outer margin of the shelf. Shortly thereafter a basin formed to the west in early Nevadella Zone time. Dark limestone in thin, platy beds covered a wide area in the basin and extended eastward to the outer margin of the carbonate shelf. Silt then
poured into the basin near the basin-shelf contact and formed an unstable slope. Shelf carbonate prograded over the shallow portion of the slope extending the shelf westward. Carbonate sedimentation ceased on the shelf near the end of Nevadella Zone time; this completed grand cycle A consisting of
late Precambrian(?) and early Lower Cambrian clastics (lower half-cycle, Al) and shelf carbonates (upper half-cycle, A2). In late Nevadella and earliest Bonnia-Olenellus Zone time clastics from the inner detrital belt blanketed the shelf and poured into the basin to form a second unstable siltstone
slope. This elastic blanket on the shelf constitutes the lower half (Bl) of the second grand cycle (B). The upper half-cycle (B2) began over the former shelf and shallow slope with
deposition of shelf limestone in thin and medium beds that continued until the end of the second grand cycle. In part of this area, medium and thick bedded dolomite was deposited until it attained a great thickness within the upper half-cycle. In the basin, dark, platy limestone continued to
accumulate beyond the margin of the second unstable slope during the lower half-cycle (Bl) and part of the upper half-cycle (B2). Then in late middle and early upper Bonnia-Olenellus Zone time, shale and thin bedded limestone were deposited on a third unstable slope. This was covered by
shallow-water limestone and, in latest(?) Bonnia-Olenellus Zone time, by dark siltstone that initiated a major, regional transgression. Deposition of the same dark silcstone unit over the shelf ended the second grand cycle there during late medial to late Bonnia-Olenellus Zone time. A regional
facies analysis that includes facies data from seven other nearby sections shows that the basin protruded eastward forming a re-entrant into the carbonate shelf. It is suggested that the thick succession of dolomite in the upper half of the second grand cycle was deposited on the down-current side
of this re-entrant. Here clear shallow waters may have provided optimum conditions for the rapid deposition of carbonate.
Geochemical orientation survey for uranium in the Grenville province of Ontario
Authors: Coker W B , Jonasson I R
Published: March 2017

A helicopter-mounted lake sediment and lake water survey was carried out over Grenville rocks in the Renfrew area (parts of Renfrew and Lanark Counties) during four days of October, 1975. In the course of this survey 1150 square kilometers were covered with 246
lake sediment and 276 lake water samples collected from every body of water on which the helicopter could l and. Sample sites which averaged one per 4.6 square kilometers included lakes, ponds, beaver ponds, swamps and marshes. Lake sediment samples were taken using a G.S.C. sampler. Waters were
collected directly into polyethylene bottles. At each sample site surface and bottom water pH, dissolved oxygen content , conductivity and temperature were measured using a Martek Water Quality Analyser. The lake sediments were air dried and then ball milled to pass a minus 80-mesh sieve. Lake
sediments were analyzed for U by delayed neutron activation and for Mo, Cu, Zn, Pb, Fe, Mn , Ni and Co by atomic absorption techniques. The Cu, Pb, Zn, Ni, Co, Fe, Mn, Mo, Sr, Ba, Ti, Al, Ca, Mg, K, V,
Cr, Be, La and Y contents of the lake sediments were analyzed quantitatively by D.C. arc emission spectroscopy. The organic content of the sediments was determined by loss on ignition at 450°c. Lake waters were acidified with nitric acid on the day of collection . The U content of the waters
was determined by fluorometry; the Cu, Zn , Pb , Fe, Mn, Ni and Co contents of the waters were determined by solvent extraction - atomic absorption techniques. A close relationship was found between bodies of granitic, syenitic and pegmatitic bedrock and elevated U levels in the lake sediments. The
Hurd Lake and White Lake granitic intrusives were encompassed by an annulus of higher U activity. Field inspection reveal ed that the U concentrations occur within a zone which may represent a contact metamorphic aureole. Within these complexes anomalous concentrations of U appear to be associated
with Mo. Information derived from the lake water data reinforces the geochemical distributions outlined by the lake sediment survey. This survey was carried out in order to develop optimum sampling and analytical procedures for geochemical reconnaissance of the Grenville Province that may be carried
out under the auspices of the Uranium Reconnaissance Program.
Preliminary draft of 1:1,000,000 geological atlas sheets of Eureka Sound and Robeson Channel areas, Canadian Arctic islands
Authors: Trettin H P
Published: March 2017

This unedited manuscript, based on information published prior to April, 1973, covers Axel Heiberg and Ellesmere Islands north of 80°
latitude. It contains:
(I) Geological compilations plotted on an enlarged version of the original 1:1,000,000 sheets (1961 edition of #2007, 1963 edition of #2008) with legend and age determinations,*
(2) Sketch maps showing regional setting and tectonic subdivisionsof the area,
(3) Geotectonic correlation charts,
(4) Index map for source materials,
(5) Brief summary of depositional history, stratigraphy, orogenic history, and regional stratigraphic-structural subdivisions, with references.
* Legend for symbols designating age determinations at back of these notes
Magnetic and bathymetry data from the Gulf of Main
Authors: Parrott D R
Published: March 2017

Magnetic and bathymetric profiles and bottom gravity measurements are presented as observed on Bedford Institute of Oceanography cruise SACKVILLE 73-032 in the Gulf of Maine.
Géologie de la région de Beauceville, Québec (dépôts meubles)
Authors: Gadd N R
Published: March 2017

La région de Beauceville renferme des indices du passage de deux invasions glaciaires laurentiennes en direction du sud et du sud-est. Cependant, on n'a rien trouvé qui puisse appuyer l'hypothèse selon laquelle il y aurait eu des avancés
glaciaires en provenance du sud. Les dépôts meubles se composent à la base d'un till rocheux, dense et gris sombre - dépôts non glaciaires de gravier et de sable atteignant jusqu'à 115 pieds d'épaisseur - surmonté d'un till sablonneux et rocheux, gris clair
à brun clair, qui renferme de minces amas d'argile à varves grises et gris rougeâtre. Dans plusieurs coupes, le tlll et les argiles varvées s'interstratifient. On suppose que les graviers aurifères de la région de Beauceville, que l'on croyait être du Tertiaire,
appartiennent à la succession des sables et graviers non glaciaires qui, selon l'auteur, ne seraient pas antérieurs à l'intervalle interglaciaire mais probablement d'origine interstadiaire. La cimentation de certains graviers et les taches d'oxyde de fer apportées comme preuve
des conditions de formation du sol au Tertiaire ne seraient qu'un phénomène d'enrichissement secondaire causé par les eaux souterraines actuelles ou d'âge relativement récent.
Current flow in the magnetosphere during periods of moderate activity
Authors: Rostoker G , Hughes T J
Published: March 2017

The object of this research was to upgrade existing knowledge of high latitude current systems in order to facilitate co-ordinated research during the upcoming International Magnetospheric Study (1976-1979). Emphasis was laid on the recently discover e d
phenomenon of net field-aligned current flow into and out of the auroral aval. It was found that net downward current flow exists across the region of the westward electrojet over a large range of local times in the dawn sector. The net upward current flow is confined to the pre-midnight quadrant,
and tends to be concentrated near the polcward border of the eastward electrojet. Iu the Harang discontinuity between the eastward and westward electrojet, the current flow involves a strong poleward Hall current and a westward Pedersen current. The current flow pattern is related closely to the
auroral zone electric field configuration obtained by Mozer and Lutch (1974). Net field-aligned current flow is found to contribute significantly to the overall magnetic perturbation pattern at high latitudes, and is thought to be the source of the
Hall current electrojets.
A survey of seabottom temperatures and salinities in Barrow Strait
Authors: Collyer J , Judge A S
Published: March 2017

A survey of bath summer and winter bottom water temperatures and salinities has been undertaken in the Barrow Strait region of the Canadian Arctic Islands. Data are available at 335 stations and contoured maps have been prepared showing the temperature and
salinity distributions. In general, bottom water temperatures are negative above a water depth of 400m and in certain areas persist to below 600m. Bottorn water salinities increase with depth to below 600m. The results suggest the presence of several major currents on the sea floor in the region
flowing generally from west to east and from the Barrow St rait-Lancaster Sound area into the surrounding inlets.
Étude des mouvements de la croûte terrestre à l'aide d'un nivellement géométrique de grande précision
Authors: Gagnon P , Jobin J , Sanchez R , Van Chestein Y
Published: March 2017

Experiments in the measurement of tilt and strain of the earth's crust as well as experiments in the detection of earthquakes are presently being carried out by the Earth Physics Branch, Department of Energy, Mines and Resou..:c,~s at Saint-Hilarion,
Charlevoix county. With the aim of ve~ifying the tilt results obtained, a research group of the faculty of Geodesy and Cartography of Laval University, have üeen engaged, since July 1977, in developing a method of observation by geometric levelling that would be useful in the evaluaticn of
long-term crustal tilt with a precisjon of the order of a microradian. The station consists of eight special bench marks anchored in rock and arranged at regular intervals around a circle 20 min radius. The bench marks were constructed to be within a few millimeters of equal height. From a point in
the centre of the circle consisting of a steel column fixed in a concrete base the differences in height amongst the bench marks were observed by four levelling schemes each consisting of a closed loop through four bench marks. A computer program that performs least squares fitting permits the
relative heights of the bench marks to be obtained. In order to study the variations of computed heights, a mathematical model involving a typical sinusoid was developed. This model is based on the hypothesis that the portion of the crust at the station behaves locally like a rigid plate. The model
describes the short-term variations (from month to month) well, but not the longer term variations, except for the last few observations where it adequately describes movements over a period of three months. The studies seek to ultimately explain the long term tilts for the complete data set. The
results gathered to date permit the determination of therelationships that exist between the benchmarks during one observation with a precision of the order of a microradian.
Canadian strong motion records
Authors: Weichert D H , Milne W G
Published: March 2017

Strong motion acceleration records were obtained in western Canada at several sites for four earthquakes between 1965 and 197 6 , and in eastern Canada atone site in 1979. Peak horizontal accelerations ranged from 1% to 6% gravity . This report presents
time series plots of acceleration, velocity and displacement for all records, including the eastern one which was recorded on the network operated by the Canadian National Research Council. Fourier amplitude and response spectra are given. Data reduction methods and programs are described and
reliability of results are discussed.
The Acoustic Properties of Methane Hydrate
Authors: Clouter M J , Kiefte H
Published: March 2017

Under certain conditions of pressure and temperature hydrocarbon gases combine with water to form ice-like solids, gas hydrates . Such conditions are encountered in the permafrost areas of the far north and beneath the offshore waters surrounding us. Very little
information is available on the physical properties of such deposits which pose a danger to northern drilling and may , in the future, provide an unconventional source of natural gas. This report describes the methods and techniques used to produce single crystals of hydrate in the laboratory and
determine its acoustic properties.