bluuebunny/crossref_metadata_2025 huggingface dataset:
Future Research on Cloud Computing Adoption by Small and Medium-Sized Enterprises
Authors: Saedi Amin , Iahad Noorminshah A.
Published: September 2013

This paper delivers some initial insights into the range of theories that need to be integrated to provide a holistic explanation of Cloud Computing (CC) adoption by Small and Medium-Sized Enterprises (SMEs). To achieve this outcome, this paper firstly critiques the two commonly used Information Systems (IS) adoption/diffusion theories: the Technology Acceptance Model and Diffusion of Innovation Theory. It then evaluates the suitability of the Technology-Organization-Environment framework as an IS adoption theory and Actor-network Theory as an innovation translation approach for future research on developing an integrated theoretical framework for CC adoption by SMEs.
Distance, Climate, Demographics and the Development of Online Courses in Newfoundland and Labrador
Authors: Reid Scott
Published: September 2013

One of the assertions of the Actor-Network Theory is that physical factors can be actors within a network of other factors which determine the development and use of technology. This paper documents the impact of climate, distance and demographics on the adoption of online courses at Memorial University of Newfoundland in Canada. The qualitative study demonstrates that these physical factors did influence professor’s decisions to use online courses. The findings support the Actor-Network Theory and provide insight into the interaction of physical and human actors within a network that facilitated the adoption of online courses at the university being studied.
Using ANT to Uncover the Full Potential of an Intelligent Operational Planning and Support Tool (IOPST) for Acute Healthcare Contexts
Authors: Muhammad Imran , Moghimi Fatemeh Hoda , Taylor Nyree J. , Redley Bernice , Nguyen Lemai , Stein Malte , Kent Bridie , Botti Mari , Wickramasinghe Nilmini
Published: September 2013

Based on initial pre-clinical data and results from focus group studies, proof of concept for an intelligent operational planning and support tool (IOPST) for nursing in acute healthcare contexts has been demonstrated. However, moving from a simulated context to a large scale clinical trial brings potential challenges associated with the many complexities and multiple people-technology interactions. To enable an in depth and rich analysis of such a context, it is the contention of this paper that incorporating an Actor-Network Theory (ANT) lens to facilitate analysis will be a prudent option as discussed below.
Competitive Intelligence in the Enterprise
Authors: Moloi Relebohile , Iyamu Tiko
Published: September 2013

Due to increasing challenges, as well as competitiveness, many organisations have sought advantaging and beneficiary techniques and options. One of those options is through Competitive Intelligence (CI) products, which some organisations have come to rely upon for sustainability and competitive advantage. Unfortunately, and to some degree, fortunately, there are different CI products which organisations could choose from. The products are supposed to be selected and deployed based on organizational requirements from both technical and business perspectives. Some organisations deploy more than one competitive intelligence product. Others are not guided, and do not understand the essence of the deployment, regarding achieving the organisational objectives. The fortunate and unfortunate situations which occur in the deployment of CI products in organisations are drawn from relationships amongst stakeholders in the selection and implementation processes. The relationships are manifested from control of sources which use the power for decision making. The relationships emanate from the fact that there are no proper comparisons of the products, driven by requirements. As a result, the organisations are faced and challenged with duplication and waste of resources. They struggle to determine their competitive advantage. This situation further manifests the complexity of technical and business artefacts. Case study research was conducted to understand how CI products are deployed in the organisation. A sociotechnical theory, actor-network theory was employed in the analysis of the data, primarily to examine and understand how control of resources for power defined and shaped relationships.
On the Privacy and Utility of Anonymized Social Networks
Authors: Song Yi , Lu Xuesong , Nobari Sadegh , Bressan Stéphane , Karras Panagiotis
Published: September 2013

One is either on Facebook or not. Of course, this assessment is controversial and its rationale arguable. It is nevertheless not far, for many, from the reason behind joining social media and publishing and sharing details of their professional and private lives. Not only the personal details that may be revealed, but also the structure of the networks are sources of invaluable information for any organization wanting to understand and learn about social groups, their dynamics and members. These organizations may or may not be benevolent. It is important to devise, design and evaluate solutions that guarantee some privacy. One approach that reconciles the different stakeholders’ requirement is the publication of a modified graph. The perturbation is hoped to be sufficient to protect members’ privacy while it maintains sufficient utility for analysts wanting to study the social media as a whole. In this paper, the authors try to empirically quantify the inevitable trade-off between utility and privacy. They do so for two state-of-the-art graph anonymization algorithms that protect against most structural attacks, the k-automorphism algorithm and the k-degree anonymity algorithm. The authors measure several metrics for a series of real graphs from various social media before and after their anonymization under various settings.
Anonymous and Fair Micropayment Scheme with Protection against Coupon Theft
Authors: Isern-Deyà Andreu Pere , Payeras-Capellà M. Magdalena , Mut-Puigserver Macià , Ferrer-Gomila Josep L.
Published: September 2013

The development of new applications of electronic commerce (e-commerce) that require the payment of small amounts of money to purchase services or goods opens new challenges in the security and privacy fields. These payments are called micropayments and they provide a trade-off between efficiency and security requirements to pay low-value items. It is usual to assume low value fraud to achieve efficiency in micropayment systems. In this paper the authors present an improved version of an efficient and secure micropayment scheme which fulfils the security properties that guarantee no financial risk for merchants and the privacy of the customers. In addition, the proposed system defines a fair exchange between the coin and the desired good or service. In this fair exchange, the anonymity and untraceability of the customers are assured. Moreover, customers can request a refund whether they are no more interested on the services offered by merchants. As a novelty, an improvement of the scheme avoids customers to fraudulently use a refund operation to gain a little amount of money (called coupon). Thus, a new resolution subprotocol allows the merchant to avoid the loss of any single coupon.
Ventricular Fibrillation after Bortezomib Therapy in a Patient with Systemic Amyloidosis
Authors: Yamasaki Satoshi , Muta Tsuyoshi , Higo Taiki , Kusumoto Hirotake , Zaitsu Eiko , Miyamoto Toshihiro , Oda Yoshinao , Akashi Koichi
Published: September 2013

A 64-year-old female was diagnosed with systemic amyloidosis associated with multiple myeloma. Bortezomib and dexamethasone-therapy was initiated; however, she developed lethal ventricular fibrillation (VF) and cardiac arrest after 84 h of therapy. Cardiopulmonary resuscitation using direct current shocks with epinephrine and amiodarone was initiated but failed to receive cardiac function. Although her arterial pulsations recovered immediately after the injection of vasopressin, she died of heart failure 8 h after the onset of VF. Cardiac amyloidosis was verified by autopsy. Although the direct association of bortezomib with lethal VF remained to be clarified in our patient, the current report emphasizes on bortezomib as a substantial risk factor for cardiomyocyte damage. The potential risk of lethal events associated with cardiac amyloidosis should be carefully considered during bortezomib treatment for patients with AL amyloidosis.
Young women’s stroke etiology differs from that in young men: an analysis of 511 patients
Authors: Nakagawa Emily , Hoffmann Michael
Published: September 2013

Women are known to have particular heterogeneity in stroke etiology related to childbearing and hormonal factors. Although there are continued acute stroke treatment advances focusing on clot dissolution or extraction, effective secondary prevention of stroke, however, is dependent on an accurate etiological determination of the stroke. Otherwise, more strokes are likely to follow. Analysis of young women’s stroke etiology in a large stroke registry incorporating contemporary neurovascular and parenchymal imaging and cardiac imaging. Young people (18-49 years old) with stroke were consecutively accrued over a 4 year period and an investigative protocol prospectively applied that incorporated multimodality magnetic resonance imaging, angiography, cardiac echo and stroke relevant blood investigations. All patients were classified according to an expanded Trial of Org 10172 in Acute Stroke Treatment − TOAST − classification and neurological deficit by the National Institute of Health stroke admission scores. In 511 registry derived, young stroke patients (mean age 39.8 years, 95% confidence interval: 39.1; 40.7 years), gender (women n=269, 53%) the etiological categories (women; men) included: i) small vessel disease (30/55;25/55), ii) cardioembolic (16/42;26/42), iii) large vessel cervical and intracranial disease (24/43;19/43), the other category (132/226; 91/226), which included, iv) substance abuse (15/41; 26/41, 4.6), v) prothrombotic states (22/37;15/37), vi) dissection (11/30;19/30), vii) cerebral venous thrombosis (15/19; 4/19, 12.4), viii) vasculitis (8/12; 4/12), ix) migraine related (10/11, 1/11) and x) miscellaneous vasculopathy (38/52;14/52). The latter entities comprised of aortic arch atheroma, vessel redundancy syndrome, vertebrobasilar hypoplasia, arterial fenestrations and dolichoectasia. Some conditions occurred solely in women, such as eclampsia (5), Call Fleming syndrome (4), fibromuscular dysplasia (3) and Moya Moya syndrome (2). Categories aside from bland infarction included: ii) intracerebral hemorrhage (43/106; 63/106) and xiii) stroke of undetermined etiology (6/10; 4/10). Admission mean National Institute of Health Stroke Scale scores differed significantly between women and men (4.7; 6.0 t=1.8, P=0.03). Young women’s stroke is significantly different from men in 7/12 stroke etiological categories in addition to 4 unique subtypes that require specific management.
Interleukin-1β secretion in hippocampal sclerosis patients with mesial temporal lobe epilepsy
Authors: Olgac Dundar Nihal , Aktekin Berrin , Cicek Ekinci Nilufer , Sahinturk Duygu , Yavuzer Ugur , Yegin Olcay , Haspolat Senay
Published: September 2013

Mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE-HS) is a common medically intractable epilepsy syndrome. Although pathogenesis of HS still remains highly controversial, genetics may play a role as a predisposing factor. Previous evidence in a Japanese population revealed that the homozygotes for allele T at position −511 of the interleukin (IL)-1β gene promoter region (IL-1β-511 T/T) confers susceptibility to the development of HS. However, whether this polymorphism has an effect on IL-1β levels in MTLE-HS patients was not demonstrated. This study aimed to analyze the distribution of this particular polymorphism in a group of Turkish HS patients and correlate the polymorphism with IL-1β secretion from the lymphocytes, thus revealing a functional role for IL-1β in the etiopathogenesis of HS. A single base pair polymorphism at position −511 in the promoter region of the IL-1β gene was analyzed. The spontaneous and 1 ng/mL lipopolysaccharide-stimulated production of IL-1β by peripheral blood mononuclear cells after 4 and 24 h of incubation were measured by ELISA method. The heterozygous type (−511 C/T) was the most common genotype. There was no difference in frequency of allele −511 T between patients and controls. Analysis of IL-1β levels, genotype and allele distributions showed no significant difference among the groups (P>0.05). Nevertheless, it was seen that patients who carry a T allele at position -511 of the IL-1β gene had increased IL-1β levels. T-allele carriage may be important. Only IL-1β secretion from the lymphocytes has been assessed in this study. Considering the importance of IL-1β in the etiopathogenesis of HS, further studies are needed to evaluate locally produced IL-1β levels.
Current Research, Part C
Authors:   Geological Survey of Canada
Published: September 2013

My trilobite collection of approximately 20 000 specimens was transferred to the Geological Survey of Canada, Ottawa, in 1978. The material is Middle Cambrian through early Lower Ordovician in age, and is mainly from boulders in the Cow Head Croup, western
Newfoundland. The boulders are from slump deposits comprising strata of several depositional facies. Boulders from shallow water carbonates contain standard trilobites known from the North American Faunal Province. Boulders from carbonate mounds and buildups of shallow to intermediate depths contain
Lévis-type trilobites. Boulders originating from relatively deep water deposits and adjacent interbedded strata contain trilobites known from the Acado-Baltic Faunal Province. This mixing of faunas representing different faunal environments has produced a unique opportunity for correlating
across facies barriers. The trilobites reported here have been separated into four Middle Cambrian and four Upper Cambrian informal zones. They have been identified to generic level, and some to specific level, but systematic studies have not been attempted.
Current Research, Part B
Authors:   Geological Survey of Canada
Published: September 2013

Forty kilometres of Huntec high resolution seismic profiles and f ow· piston cores have been studied from Kaipokok Bay, Labrador. Sedimentary and acoustic facies have been correlated. Proglacial gravels, sands and muds fill basin floors, generally resting on
bedrock but locally on till. These are overlain by more widespread proglacial muds that drape over topographic highs. Small scale cyclic sedimentation of proglacial sands and muds may be a result of shifting of stream discharge points, either beneath the edge of a floating ice shelf, or· on a
subaerial outwash delta. Flocculation leads to mineralogic segegation of illite in proximal environments and non-clay rock flour in distal environments. Late Holocene muds rest with an erosional unconformity on the proglacial sediments. They have accumulated as marine energy has been increasingly
damped at the sill as sea level has fallen.
Sedimentology of the Eocene Taglu Delta, Beaufort-Mackenzie Basin : Example of a River-dominant Delta
Authors: Dixon J
Published: September 2013

The Taglu Delta represents the final clastic delta wedge of the lower Tertiary Reindeer Formation before burial under a thick marine mudstone succession. Specific depositional subenvironments can be identified from core material and include delta front,
distributary mouth bar, distributary channel, crevasse splay and interdistributary bay. Integration of core interpretations with geophysical log shapes and their extrapolation to uncored wells allows a three dimensional depositional framework to be established. Lobate distribution of sands and the
prominence of channel sands points to a river-dominant delta. The character of the channel deposits suggests that some channels may have been braided. A relative/y thick sequence of lower delta plain deposits also points to a moderate to strongly subsiding receiving basin and/or rapid delta
compaction. Sands from the various subenvironments are predominantly quartz and chert. Other, less common, components include plagioclase, muscovite and clasts of limestone, volcanic rock, schist, coal and shale. Two main source areas seem likely for the Taglu Delta, one to the south and the other
as far west as Alaska.
Transportable calibration pads for ground and airborne gamma-ray spectrometers
Authors: Grasty R L , Holman P B , Blanchard Y B
Published: September 2013

Sets of four transportable concrete pads 1 m x 1 m x 30 cm and weighing approximately 675 kg were constructed for calibrating portable gamma-ray spectrometers. Each set consists of a low radioactivity background pad, and three radioelement pads of potassium,
uranium, and thorium which provide almost pure gamma-ray spectra. The potassium pads were manufactured using potassium feldspar and the thorium pads using britholite, a thorium-rich rare earth phosphate. Initial problems of radon loss from the uranium pad were overcome by using a uranium-rich slag
of calcium silicate which was a byproduct from a phosphorus processing plant. Experiments with these small pads have shown that they give the same potassium, uranium, and thorium spectral shapes as the much larger aircraft calibration pads. These small transportable pads can therefore be used for
calibrating large volume airborne systems as well as portable gamma-ray spectrometers.
Origin of the Lower Proterozoic Fleming chert-breccia, Newfoundland, Labrador-Quebec
Authors: Birkett T C
Published: September 2013

The Fleming Formation of the Lower Proterozoic Kaniapiskau Supergroup of the Labrador Trough is composed of poorly bedded to locally well bedded cherts, chert breccias, and chert-quartz sandstones. Fleming Formation strata overlie a cherty phosphatic unit,
traditionally considered part of the underlying dolomitic Denault Formation. The cherts and chert breccias of the Fleming Formation, although displaying some links to evaporites, appear to represent primary silica precipitatesf om the Lower Proterozoic ocean, and are best considered as precursors to
banded iron formation. The chert-quartz sandstones with floating quartz clasts are penecontemporaneously reworked portions of the silica sequence.
Summary of stratigraphy of Melville Island, Arctic Canada
Authors: Goodbody Q H , Christie R L
Published: September 2013

The sedimentary rocks of Melville Island can be grouped into three sedimentary successions that were controlled by regional tectonics. The groups are: 1) Infill of the Franklinian Geosyncline (now called the Franklinian Mobile Belt): the rocks are upper
Precambrian to Upper Devonian carbonates succeeded by evaporites and black shales. These rocks are overlain by Devonian clastic rocks. The clastic rocks dominated the basin fill from the Middle Devonian until the Ellesmerian Orogeny (Famennian to Viséan). An angular unconformity separates the
rocks from the Sverdrup Basin fill above. 2) Sverdrup Basin rocks ranging from Pennsylvanian to early Tertiary. Carboniferous rocks are mainly sandstone, conglomerate and minor limestone. Anhydrite of Pennsylvanian age is exposed in two domes in Sabine Peninsula. Bitumen-bearing Triassic rocks are
found on northwestern Melville Island. The youngest rocks of the Sverdrup succession are the Maastrichtian and Paleocene strata of the Eureka Sound Group. 3) Beaufort Formation strata, consisting of gravel and sand containing wood, discontinuously overlie older rocks. They are assigned to the Upper
Tertiary probably Pliocene-Miocene.
A note on graptolite correlation of the Canrobert and Ibbett formation boundary (Ordovician) Nisbet Point, northwestern Melville Island, Arctic Canada
Authors: Lenz A C , Borré D J
Published: September 2013

Graptolites are common in the uppermost shales of the Canrobert Formation and the lowest Ibbett Bay Formation of the Nisbet Point section. The Canrobert graptolites probably correlate with the Oncograptu Zone (Upper Arenig) of the northern Cordillera, whereas
those of the Ibbett Bay appear coeval with the Paraglossograptus tentaculatus Zone, or possibly with the Oncograptus and lower tentaculatus zones of latest Arenig and early Llanvirn age.
Uppermost triassic, jurassic, and lowermost cretaceous stratigraphy, Melville Island area, Arctic Canada
Authors: Embry A F
Published: September 2013

The uppermost Triassic, Jurassic, and lowermost Cretaceous succession of the northern Melville Island area is divided into eleven formations on the basis of lithology, and into four sequences on the basis of two major unconformities that bound the succession and
three significant unconformities that lie within it. The sequences are dated as 1) RhaetianþSinemurian; 2) PliensbachianþAalenian; 3) BajocianþCallovian; 4) OxfordianþValanginian. The RhaetianþSinemurian sequence consists of the Grosvenor Island, Maclean Strait, Lougheed Island, and King Christian
formations of the Heiberg Group. The strata record two cycles of transgression followed by regression and marginal uplift. The Pliensbachian to Aalenian sequence contains the argillaceous Jameson Bay Formation and the arenaceous Sandy Point Formation. Two transgressiveþregressive cycles, of
PliensbachianþToarcian and Aalenian age, occur in these strata. The McConnell Island Formation (shaleþsiltstone) and Hiccles Cove Formation (sandstone) make up the BajocianþCallovian sequence and record transgression in the Bajocianþearly Bathonian, followed by regression in the late Bathonian and
Callovian. The uppermost sequence, OxfordianþValanginian in age, encompasses the Ringnes (shaleþsiltstone), Awingak (sandstone), and Deer Bay (shaleþsiltstone) formations. Transgression occurred in earliest Oxfordian, followed by regression in the Oxfordian and early Kimmeridgian. Transgression in
earliest Volgian was followed by numerous small transgressiveþregressive cycles in Volgian and Berriasian time, when sandstones were restricted mainly to the southeastern portion of the study area. A large trangression occurred in the early Valanginian and this was followed by regression and uplift
of the entire study area in the late Valanginian to Hauterivian.
Petrology and depositional environment of Upper Devonian coals from eastern Melville Island, Arctic Canada
Authors: Goodarzi F , Gentzis T , Harrison J C
Published: September 2013

The petrology of Upper Devonian coals from the Beverley Inlet and Parry Islands formations of eastern Melville Island is described. The coals are rich in huminite and extremely poor in inertinite macerals. Sporinite is the most dominant liptinite maceral,
followed by cutinite, resinite and amorphous fluorescing material. The well preserved, structured huminite is indicative of a low degree of microbial degradation, whereas the lack of inertinite indicates that the peat surface was not exposed to the atmosphere or to fire. The coals were deposited in
interdistributary bays of a floodplain area of a delta and experienced only minor fluvial influence. They are sub-bituminous A in rank and have experienced shallower depth of burial than other Upper Devonian coals in western Melville Island.
Stratigraphy and petrology of lower cretaceous coal, southeastern Melville Island, District of Franklin, Arctic Canada
Authors: Goodarzi F , Harrison J C , Wall J H
Published: September 2013

The Lower Cretaceous strata of southeastern Melville Island are up to 100 m thick and, within three outlier areas, lie with pronounced angular unconformity, on folded and peneplained Devonian rocks. The vertical succession of lithofacies is fluviatile sandstones
and conglomerates at the base in the lower Isachsen Formation, passing upward through reed marsh coal, lagoonal siltstone and barrier sheet sandstone of the upper Isachsen Formation and overlying shallow marine shales of the Christopher Formation at the top. This accumulation sequence is consistent
with a regional marine transgression onto the craton observed in strata of late Aptian to early Albian age throughout the Arctic islands. General setting of coal formation was a humid, temperate coastal marsh bordering a brackish back-barrier lagoon on the southern ancestral periphery of the
Sverdrup Basin. Coal seams in the Isachsen Formation are laterally continuous and from 1 to 3 m thick within two of the three outlier areas. The coals at four localities range from lignite to high-volatile bituminous in rank and are petrologically classified as liptinite-rich duroclarites,
vitrinertites and vitrinertoliptites. The liptinite-rich coals were formed in a limnotelmatic (reed) marsh setting. There are also indications of selective oxidation and weathering during formation. The vitrinertoliptite-rich coals are similar to ``needle'' coal reported by Gibson (1977) from the
Lower Cretaceous Kootenay Group of southern British Columbia.
A summary of the structural geology of Melville Island, Canadian Arctic Archipelago
Authors: Harrison J C
Published: September 2013

Ellesmerian (latest Devonian or Early Carboniferous) deformation produced the major compressive tectonic elements of the island, including a 180 km wide salt-based, thin-skinned fold belt that dominates surface structure. The fold belt conceals a seismically
imaged panel of thrust faulted strata with up to 28 km (15%) horizontal shortening. This belt features a basal detachment at about 5 km depth and a complex array of forward- and backward-vergent thrusts, most of which do not reach the surface. Different styles of coeval deformation are found in
the Canrobert Hills region and in the western part of the island. Thrusts that ramp up to the sub-salt décollement through (?)Cambrian and Lower Ordovician strata have produced a series of large-scale anticlinoria near the present margin of the Sverdrup Basin. A complex array of faults
associated with the margin of the post-Ellesmerian Sverdrup Basin has been active repeatedly since the Cambrian. Phases of deformation related to fault reactivation include (?)Cambrian and (?)Lower Ordovician growth faulting, and inversion of these growth faults during the Ellesmerian Orogeny. A
rifting phase of the Sverdrup Basin occurred in late Paleozoic time, and mid-Permian inversion tectonics are associated with the Melvillian disturbance. Incipient rifting in the Jurassic and Cretaceous is linked to the opening of Canada Basin, and a third phase of inversion tectonics is coeval with
the mid-Tertiary Eurekan Orogeny and the evolution of North Atlantic spreading centres.
Geological map of Carboniferous and Permian units on Hvitland Peninsula and adjacent areas, northwestern Ellesmere Island, Arctic Canada
Authors: Mayr U , Harrison J C , Beauchamp B
Published: September 2013

During the 1994 field season, Carboniferous and Permian, and to a lesser extent, Triassic and Cretaceous-Tertiary formations and units were mapped in the northern part of Ellesmere Island. About 20map units, ranging from shallow-water carbonates to basinal shale
and chert, were identified. The map area is characterized by a large number of thrusts with a diminishing amount of shortening from west to east.
Carboniferous and Permian stratigraphic sequences on Hvitland Peninsula and adjacent areas, northwestern Ellesmere Island, Arctic Canada
Authors: Beauchamp B , Mayr U , Harrison J C
Published: September 2013

Six long-term transgressive-regressive sequences are recognized in the Carboniferous succession of Hvitland Peninsula, northwestern Ellesmere Island. The six sequences are unconformity-bounded packages that pass basinward into their correlative conformities. The
six sequences are represented by the following lithostratigraphic units: 1)Serpukhovian Sequence: Borup Fiord Formation; 2) Bashkirian to Kasimovian Sequence: Otto Fiord, Nansen and Hare Fiord formations and units C1 and C2; 3) Gzhelian-Sakmarian Sequence: Nansen and Hare Fiord formations; 4)
Artinskian Sequence: uppermost Nansen and Hare Fiord, Raanes, Trappers Cove and Great Bear Cape formations; 5)Kungurian-Kazanian Sequence: uppermost Great Bear Cape and Trappers Cove, Van Hauen and Degerböls formations; and 6) post-Kazanian Sequence: uppermost Van Hauen and Degerböls
formations and Unit P6. In addition, the uppermost portion of Unit P6 forms the transgressive systems tract of a latest Permian-Early Triassic Sequence.
Serpukhovian and Bashkirian (Carboniferous) stratigraphy (Borup Fiord and Otto Fiord formations; Unit C1), Hvitland Peninsula and adjacent areas, northwestern Ellesmere Island, Arctic Canada
Authors: Thériault P , Beauchamp B , Harrison J C , Mayr U , Steel R
Published: September 2013

The Borup Fiord Formation comprises red weathering, pebble to cobble conglomerates and sandstones that recorded fluvial sedimentation in a rift-related setting where tectonic highs shed coarse clastic material into adjacent lows. The Borup Fiord Formation is
conformably overlain by Unit C1, which is represented by marine evaporites and minor limestones in the distal areas (Otto Fiord-like facies), and yellowish brown, fossiliferous dolostones and minor sandstones and conglomerates in the proximal areas. At the surface, the Otto Fiord Formation comprises
marine evaporites (gypsum and anhydrite) interfingering with minor limestones. Unit C1, and likely correlative Otto Fiord Formation, recorded restricted marine sedimentation in a closed basin. The bulk of the Serpukhovian Borup Fiord Formation forms a broad, unconformity-bounded,
progradational-retrogradational sequence, one that recorded nonmarine fluvial sedimentation in a series of fault-bounded, rift-related, northeastward-trending subbasins, the largest of which is here named the Hvitland Subbasin.
Artinskian-Kungurian (Lower Permian) stratigraphy (Raanes, Great Bear Cape, and Trappers Cove formations), Hvitland Peninsula and adjacent areas, northwestern Ellesmere Island, Arctic Canada
Authors: Kells M P , Beauchamp B , Desrochers A
Published: September 2013

The Artinskian Raanes, Great Bear Cape and Trappers Cove formations are widely exposed on Hvitland Peninsula and adjacent areas, northwestern Ellesmere Island. The Raanes Formation consists of bryozoan- and echinoderm-rich argillaceous limestone and lesser
bryozoan-rich muddy carbonates forming variably thick reef-mounds. The environments represented by these rocks include deep to shallow ramp and submarine fill of tectonic depressions. This unit is overlain by the Great Bear Cape Formation, which is composed of crinoidal packstone and grainstone
deposited on a cool water temperate shelf. Both the Raanes and Great Bear Cape formations pass in a southwestward direction in black siliceous shale and spiculitic chert of the Trappers Cove Formation, which recorded slope to basin sedimentation. These three units form the bulk of a long-term,
unconformity-bounded, transgressive-regressive sequence of the Sverdrup Basin, the early transgressive portion of which is contained in the upper Hare Fiord and correlative Nansen formations.
Ufinian-Kazanian (Lower and Upper Permian) stratigraphy (Van Hauen and Degerböls formations), Hvitland Peninsula and adjacent areas, northwestern Ellesmere Island, Arctic Canada
Authors: Desrochers A , Beauchamp B
Published: September 2013

The Van Hauen and Degerböls formations are widely exposed on Hvitland Peninsula and adjacent areas. The Van Hauen Formation, a unit of dark grey to black, slope to basinal, spiculitic chert and shale, is overlain and grades laterally into the Degerböls
Formation, a unit of cool water bioclastic (Bryonoderm biota) shelf limestone and lesser chert. The Degerböls Formation overlies, and passes landward into, green glauconitic, variably fossiliferous, shallow-water marine sandstones of the Trold Fiord Formation. These formations form the bulk of
a low order, unconformity-bounded sequence of the Sverdrup Basin, a sequence that also includes strata contained in the upper part of the Great Bear Cape and correlative Trappers Cove formations. The uppermost part of the Van Hauen and Degerböls formations comprises strata that belong to a
younger post-Kazanian Sequence. Shelf to basin depositional facies are organized in decametre-scale, transgressive-regressive cycles with distinctive facies and stacking patterns.
Uppermost Permian stratigraphy (Unit P6), Hvitland Peninsula and adjacent areas, northwestern Ellesmere Island, Arctic Canada
Authors: Beauchamp B , Mayr U , Harrison J C , Desrochers A
Published: September 2013

An uppermost Permian unit of chert (Unit P6), mapped in the southwestern areas of Hvitland Peninsula, comprises dark grey to black chert and lesser siliceous shale passing upward into thick bedded, light grey chert. Sponge spicules are the only fossil remains in
the chert. Deposition of Unit P6 probably occurred in a very cold environment, forming a spiculitic blanket that probably extended throughout the area. Unit P6 forms the regressive portion of a transgressive-regressive sequence, the transgressive systems tract of which is contained in the underlying
uppermost Van Hauen and Degerböls formations. The uppermost part of Unit P6 comprises shalier chert sediments that form the transgressive systems tract of a latest Permian-Early Triassic sequence, the maximum flooding surface of which lies at the base of the Triassic Blind Fiord shale. The
absence of Unit P6 throughout most of Hvitland Peninsula is indicative of broad uplift and erosion in latest Permian-earliest Triassic time.
Establishing the chronology of snow and pollen deposition events on Agassiz Ice Cap (Ellesmere Island, Northwest Territories) from autostation records
Authors: Alt B T , Bourgeois J C
Published: September 2013

Regional pollen concentrations in seasonal snow layers of Agassiz Ice Cap for the years 1981-89 and preliminary results for 1991 are compared with the first quality controlled records from the experimental autostation established at the 1977 borehole site.
Emphasis is placed on the distinctive, coarse grained (a) layer which is deposited by the first snow storm of each new mass balance year. These storms are sufficiently well developed to pick up, transport, and precipitate the tundra pollen, and to wash out pollen stored in the atmosphere. The
extremes of (a) layer pollen concentrations reflect the climate conditions of the inland areas of the intermontane region to the southeast of the Agassiz Ice Cap station. Accurate dating using the autostation records allows the atmospheric circulation conditions to be examined resulting in valuable
information on the source and pathways of the pollen, moisture, contaminants and paleoenvironmental indicators deposited with the snow of the (a) layer.
Estimates of methane hydrate volumes in the Beaufort-Mackenzie region, Northwest Territories
Authors: Smith S L , Judge A S
Published: September 2013

An extensive hydrate-prone zone has been determined to exist in the Beaufort-Mackenzie region. Geophysical evidence interpreted from 201 wells suggests that a significant volume of natural gas may be stored as hydrate within the sediments of this region. It is
difficult to determine the total volume of hydrate within the region because the point information from a nonuniform distribution of wells must be generalized to the region as a whole. A Geographic Information System (GIS) approach has been used to determine the area represented by each well and to
incorporate factors such as hydrate stability and uncertainty into estimates of hydrate volume. Maps have also been produced which outline probable areas of hydrate accumulation. The results of this analysis suggest that the volume of hydrate in this region is in the order of 1011
m3.
Active layer monitoring in natural environments, lower Mackenzie Valley, Northwest Territories
Authors: Nixon F M , Taylor A E , Allen V S , Wright F
Published: September 2013

Relict active layers in permafrost regions have been interpreted as indicators of past changes in climate (Mackay, 1976). The present active layer above the permafrost should respond to enhanced warming in Arctic areas (Mackay, 1975) as predicted by global
circulation models for the next several decades. A transect has been established along the Mackenzie Valley in diverse natural environments to monitor changes in the active layer over this period; 17 multi-instrumented sites between Fort Simpson and Norman Wells have been described previously (Nixon
and Taylor, 1994). This past field season, the addition of 14 ground surface and air temperature sensing automatic data loggers were added to 14 of the 46 thaw tube sites installed several years ago to complete instrumentation of the transect between Norman Wells and the Beaufort Sea
coast.
Cretaceous and Tertiary fossils discovered in kimberlites at Lac de Gras in the Slave Province, Northwest Territories
Authors: Nassichuk W W , McIntyre D J
Published: September 2013

Fossils from mudstone and siltstone lithoclasts in 13 kimberlite pipes in the Lac de Gras area include well preserved dinoflagellates, pollen, spores, wood, and teleost (ichthyodectid) fish parts. The fossils are indicative of marine and marginal-marine
environments for the Cretaceous (Albian-Maastrichtian) interval and nonmarine, possibly lacustrine, environments for the lowermost Tertiary (Paleocene). They are the first evidence that shallow transgressive seas covered much of the Slave Province during Cretaceous time and necessitate revision of
paleogeographic maps in northern Canada. Indeed, from middle to Late Cretaceous time, the Western Interior Seaway appears to have extended nearly 400km farther east than previously shown. The kimberlite pipes were emplaced in early Tertiary time. Thermal maturation of organic matter (spores and
wood) from both crater and diatreme facies in several kimberlite pipes suggests that the fossils were exposed to relatively low temperatures following deposition and ultimate incorporation in kimberlite pipes.
Recent and late Holocene sand dune activity in southwestern Saskatchewan
Authors: Wolfe S A , Huntley D J , Ollerhead J
Published: September 2013

This paper attempts to determine the chronology of recent and late Holocene dune activity within the Great Sand Hills region of Saskatchewan. Over the last 50 years, dune activity, as determined from aerial photographs, has varied in accordance with temperature
and precipitation trends, increasing during periods of drought. The present trend is towards stabilization although the drought of the 1980s increased activity in several areas to the same level as during the mid 1940s. Optical dates for several dune deposits indicate that dunes have been active in
the area within the last millennium. Most dates indicate recent dune activity (<200 years) while others record activity in the early to mid part of the last millennium. We tentatively conclude that a period of dune stability possibly occurred between 200 and 600 years ago and, based on
basal deposits, approximately 2600 BP and earlier.
A preliminary assessment of remote sensing as a tool for mapping surficial sediments in the southern Canadian Prairies
Authors: Blais A , Stevens W R , Graham D
F , Singhroy V H
Published: September 2013

As part of the Southern Prairies NATMAP Project, an attempt was made at using remote sensing as a tool for mapping surficial sediments. Three images were processed. One was a radar ERS-1 (SAR) image and by itself, it revealed only a rough outline of the
geomorphological features, such as the meandering streams and a kettled till plain. The other two were Landsat TM images (Bands 4, 5, and 7) one taken in the spring and one taken in the late summer. From these, two saturation processed images were produced. These revealed a better outline of the
available geomorphological features by delineating them in black. Colour composites of Landsat TM bands combined with ERS-1 (SAR) data showed encouraging results. More image processing is in progress to evaluate the potential use of remote sensing as a tool for mapping surficial sediments in the
southern prairies.
Stratigraphy and deformation of the Humber Zone in Gaspésie, Quebec
Authors: Lynch G , Arsenault O
Published: September 2013

Cambrian-Ordovician stratigraphy in the Humber Zone of the Grande Vallée area (Gaspésie) can be grouped into three broad packages characterized by (1) rift and continental slope clastic assemblage, (2) upper to lower slope-basin plain
carbonate-dominated assemblage, and (3) a thick upper flysch package marking the onset of Taconic deformation. Middle Ordovician deformation features thrust imbrication of Precambrian-Cambrian volcanic units with the stratified Cambrian-Ordovician continental margin deposits, and with the
synkinematic Ordovician foreland flysch sediments. New mapping and a cross-section show that units have been telescoped across a relatively short distance due to a steep convex ramp flattening into a décollement towards the foreland. Shortening was accommodated on three principal thrusts, and
large north-vergent folds in foreland rocks are interpreted as fault-propagation folds above the tips of blind thrusts.
Cambrian-Ordovician slope conglomerates in the Humber Zone, Quebec reentrant, Quebec
Authors: Lavoie D
Published: September 2013

Cambrian-Ordovician deep-water sediments in the Humber Zone of the Quebec Reentrant occur in thrust complexes in eastern Quebec. The lithostratigraphy is complex because of the use of locally defined units. Limestone conglomerates are used to refine this
framework. Lower Cambrian conglomerates consist of oligomict and polymict varieties with slope- and platform-derived clasts in a quartzose matrix. Upper Cambrian polymict conglomerates differ in their composition and characteristics, conglomerates form decametre-thick fining-upward units. Clasts
include shallow water limestones and siliciclastics, slope-derived siliciclastic rafts, and abundant basement fragments. Ordovician conglomerates are finer grained (except in the southern area) and occur in thin successions. They consist of platformal and slope material with lime mudstone as the
dominant clast type.
The Canfield Creek copper deposit, Nova Scotia - a late Carboniferous cupriferous bog deposit: implications for exploration for redbed copper in Carboniferous clastics in Nova Scotia and New Brunswick
Authors: Chandler F W
Published: September 2013

On the flank of a salt dome that cuts the Westphalian C-D Malagash Formation near Pugwash, Nova Scotia, chalcocite nodules have replaced diagenetic pyrite nodules at the base of a grey fluvial channel sandstone. Pyrite and organic matter occur throughout the grey
bed and redox fronts separating it from over- and underlying red floodplain mudstones are concordant with its base and top. Regional presence of green sandstones in overlying formations argues against large scale oxidation from above during Permian unroofing. There is no macroscopic evidence that
the salt dome was involved in the mineralization. Rather than forming a roll front, cupriferous ore solution probably migrated as syngenetic to early diagenetic groundwater from underlying red floodplain mudstones. An unusually high content of plant debris and of pyrite nodules in the mineralized
bed might be linked to a local overlying grey-black, laminated mudstone of probable swamp origin.
Geology of Fogo Island, Newfoundland - a study of the form and emplacement of igneous intrusions
Authors: Currie K L
Published: September 2013

The Siluro-Devonian Fogo Batholith forms a density-stratified, sill-like body within the Silurian Fogo Harbour Formation. Passive emplacement of composite gabbro-rhyolite dykes and rhyolite sills preceded and facilitated emplacement of the main batholith, which
was accompanied by eruption of extensive rhyolite ignimbrites of the Brimstone Head Formation. Composite dykes, synplutonic dykes, and sequences of non-intrusive sheets of contrasting composition and texture demonstrate that mafic and salic components of the batholith coexisted as magmas. Complex
mafic-salic relationships and local agmatization probably resulted from convection during emplacement. Extreme scarcity of pegmatites, quartz veins, and alteration indicate relatively dry magma, greatly reducing the economic potential of the batholith, except as a possible source of dimension stone.
Emplacement preceded final juxtaposition of the Botwood and Indian Islands belts along the Dog a Line and occurred during late folding of the Botwood Belt.
Application of laser microprobe inductively coupled plasma mass spectrometry for trace metal fingerprinting of native gold
Authors: Chen Z , Doherty W , Gregoire D C , Harris D
Published: September 2013

Major, minor and trace elements in 60 native Au samples from across Canada were analyzed directly by laser ablation microprobe inductively coupled plasma-mass spectrometry (LAM-ICP-MS). Diameters of laser ablation craters ranged from 100 to 150 µm defining
the smallest sample size determinable. The Au signal was used as an internal standard to correct for differences in ablation yields, matrix effects and signal drift during analysis. Analytical results obtained over a period of seven months for the synthetic Au alloy standard 501 demonstrated the
long-term reproducibility of the method. The elemental signatures obtained from individual specimens have proven to be unique and reproducible, yielding data that can be used for matching þunknownsþ with their source location.
National Gravity Program of the Geodetic Survey of Canada, 1996-1997
Authors: Gibb R A , Hearty D B
Published: September 2013

The National Gravity Program has been refocused to meet the needs of the Geodetic Survey Division for a refined geoid model for Canada and the integration of spatial and gravity networks and databases. During 1996, seven gravity surveys were completed: two were
reconnaissance surveys of Arctic channels, one located in Nares Strait and the other in Dolphin and Union Strait; and five were detailed surveys of geological targets including the Oak Ridges Moraine, Ontario, the Steen River crater, Alberta, Alberta LITHOPROBE transects, the Western Superior
LITHOPROBE transect, and phase 1 of a marine survey of the seaward extension of the Chicxulub crater, Mexico. Totals of 4548 new gravity stations and 3809 line kilometres of marine gravity data were collected during these surveys. The absolute gravity field program was reduced to only six
measurements by October 1996 due to instrumentation problems. A three-year plan to develop a refined geoid model for Canada was distributed to stakeholders.
Porosity evolution and evidence of hydrocarbon migration in the Kamouraska and Rivière Ouelle formations, Humber Zone, Quebec - a fluid-inclusion approach
Authors: Chi G , Lavoie D
Published: September 2013

Fluid inclusions in authigenic phases in quartzite of the Late Cambrian Kamouraska Formation and limestone of the Early Ordovician Rivière Ouelle Formation were studied in order to evaluate the evolution of porosity and look for evidence of hydrocarbon
migration. Estimates of current quartzite porosity range from near zero to 5%. Paleoporosity occluded by quartz cement ranges from <5% to 15%. Quartz cementation likely started at temperatures <50°C. Some pores probably remained open until significant burial.
Bituminous matter was observed along grain boundaries, coating residual pores, or cutting detrital quartz grains. Some quartz+calcite veins from the Montmagny area contain abundant light hydrocarbon inclusions. Limited fluid-inclusion data from the Rivière Ouelle Formation indicate that
limestone pores were not occluded until burial temperatures reached about 100-120°C. Some calcite veins contain abundant high-density methane inclusions. Hydrocarbon inclusions and bituminous matter suggest relatively late hydrocarbon migration.