AndreaBozzo/ceres-open-data-index huggingface dataset:
Regional stream sediment geochemical data, Quiet Lake area, southern Yukon (NTS 105F)

This data package contains results for parts of the Quiet Lake survey area (NTS 105F). This information has been provided in a variety of digital formats. PDF files include survey descriptions and details regarding methods, analytical data listings and summary statistics. Raw digital data of original field and analytical information plus new reanalysis results are included in Microsoft®Excel (XLS) format.

NGR surveys were originally conducted in the Quiet Lake map area in 1978 and covered parts of NTS map sheet 105F (Geological Survey of Canada, 1986). Stream sediment and water samples were collected from a total of 877 sample sites. Additional analytical work completed in 1985 was undertaken by the GSC as part of the Canada-Yukon Economic Development Agreement, 1985-1989.

As part of the 2014 Yukon Database Upgrade Project, original material collected from the 877 sample sites were selected for reanalysis. Representative 2 gram splits were successfully recovered from a total of 885 samples. Due to a deficiency of available material, 40 samples were not recovered. The samples were delivered to Bureau Veritas Commodities Canada Ltd. (Vancouver) and were analyzed by an ultra-trace aqua-regia digestion ICP-MS package for 53 elements.

Organization: Government of Yukon | Gouvernement du Yukon
Preliminary structural and kinematic analysis of mylonitic rocks of the Teslin suture zone, 105 E, Yukon

The Teslin suture zone (TSZ) is a Late Triassic to mid-Jurassic subduction complex and forms the fundamental boundary between rocks deposited along the ancient western margin of North America, and allochthonous terranes to the west. The north-northwest-trending TSZ in the Big Salmon Range includes sedimentary and volcanic strata, basalt, peridotite, and granodiorite metamorphosed to middle greenschist to epidote-amphibolite facies and variably mylonitized. Petrochemical study of co-existing phases now being initiated should allow the assignment of P-T limits attending the recrystallization.

Geologic mapping and structural analysis along three 10-15 km transects normal to the trend of the TSZ delineates two populations of stretching lineations, Lm1 and Lm2, in north-northwest-trending, steeply-dipping mylonitic foliation. Lm1, best developed in the western portion of the TSZ, plunges moderately to steeply west. Tight to isoclinal fold axes parallel Lm1. Lm2, best developed to the east, plunges gently north-northwest and south-southeast. Open to isoclinal fold axes parallel to Lm2, and fractures are locally present normal to Lm2. Folds initiated during mylonitization as open structures with axes parallel to Lm, and do not record unrelated pre- to post-mylonitic fold events. Crenulation and intersection lineations vary in orientation between schistosity planes in the shear zone. The stretching lineations, Lm1 and Lm2, formed parallel to their bulk movement directions. Kinematic indicators consistently record right-lateral movement parallel to Lm2. Preliminary interpretation of Lm1 kinematics indicate dominantly normal movement parallel to Lm1, or west-side-down.

Organization: Government of Yukon | Gouvernement du Yukon
Geology and Genesis of the Mount Skukum Epithermal Gold-Silver Deposits, Southwestern Yukon (NTS 105 D/3, 6)

The Eocene Mt. Skukum gold-silver epithermal deposits are 65 km southwest of Whitehorse in the Yukon Territory. Veins are in nearly flat-lying Eocene andesitic volcanic rocks of the Mt. Skukum Caldera Complex, part of the Sloko Volcanic Province, which unconformably overlies the Mesozoic Coast Plutonic Complex and Paleozoic to Precambrian metamorphic rocks.
Significant veins are contained in a regional halo of propylitic alteration centered on a graben in the southwestern corner of the Mt. Skukum Caldera Complex. Zones of steeply-dipping quartz-carbonate-sericite veins are associated with major faults and rhyolite dykes which bound blocks in the graben.
Electrum and native silver form fine grains which average 15 to 20 microns and locally exceed 1 mm across, in veins containing only trave amounts of sulphides. Fliuid inclusions indicate that vein minerals were deposited from fluids averaging 313°C with an average salinity of 0.7 weight percent NaCl equivalent. Primary inclusions show that depositional fluids existed under two pressure regimes: one close to hydrostatic, the other approaching lithostatic. Both indicate deposition about 470 m below paleosurface.
Oxygen and carbon isotope composition of minerals in the deposit and surrounding wall rocks indicate that depositional fluids were meteoric. Large depletions in O18 content of andesitic rocks in the deposit area indicate a minimum water: rock mass ratio of 0.81:1.
Precious metals at the Mt. Skukum deposit were emplaced at relatively low temperature, near surface, by a meteoric water dominated hydrothermal system driven by heat from associated rhyolite dykes. Gold and silver were leached from andesitic and rhyolite stocks and volcanic rocks as well as metamorphic and granitic basement, and precipitated with quartz and carbonate in permeable conduits such as fault zones, and breccia bodies.

Organization: Government of Yukon | Gouvernement du Yukon
New contributions to the bedrock geology of the Mount Freegold district, Dawson Range, Yukon (NTS 115I/2, 6 and 7)

The Mount Freegold district is an ideal natural laboratory to evaluate the structural and magmatic framework for porphyry, skarn and epithermal mineralization in the Dawson Range. The district is located within a major extensional relay zone of the Big Creek fault system, a regionally significant dextral strike-slip structure in which localized extension facilitated the emplacement of mid to Late Cretaceous magmatic rocks. New mapping defines a previously unrecognized granite pluton at Mount Freegold, as well as the ca. 77 Ma Stoddart pluton, which represents the magmatic roots of hypabyssal intrusive rocks at the Revenue Cu-Mo-Au-Ag deposit and Nucleus Au-Ag-Cu deposit. The relay zone in the Big Creek fault system is partly plugged by the ca. 70 Ma Seymour Creek stock, which is cut by a southern strand of the fault system. Episodic fault movement took place over a minimum 35 m.y. interval during which at least three distinct epochs of magmatic-hydrothermal mineralization occurred.

Organization: Government of Yukon | Gouvernement du Yukon
Report on the Detailed Mineral Assessment of the Proposed Snafu/Tarfu Natural Environment Park Special Management Area, Yukon

The proposed Snafu/Tarfu Special Management Area (SMA) consists of 733 km2 in southern Yukon. The Snafu and Tarfu lakes area was selected as a SMA by the Carcross/Tagish First Nation, with the current proposal designating the area as a Natural Environment Park with no up-front mineral withdrawal upon signing the Final Agreement. In 2001, the Yukon Department of Economic Development carried out a regional mineral assessment, which reviewed the geologic data for SW Yukon and ranked the tracts. The proposed Snafu/Tarfu SMA lies within Cache Creek Terrane and is composed of a complex succession of Mississippian to Permian basalt, shallow water carbonates, chert and greywacke, overlain by Triassic to early Jurassic interbedded chert and greywacke. Prior to fieldwork a compilation and study of available data identified a total of ten targets for follow-up of which all but two were examined in 2002.

Fieldwork entailed the collection of rock, soil and stream sediment samples, in conjunction with geological mapping and prospecting and examination of the mineral occurrences within the area. The east-central portion of the mineral assessment study area, and the extreme southwestern corner of the proposed SMA ranked the highest relative mineral potential. Anomalous geochemistry and unexplained geophysical signatures within the area currently mapped as Triassic ribbon chert/greywacke, led to the area being ranked relatively highest. A mapped intrusive body (of the same suit as those located in the Atlin area) on the southwest side of the proposed SMA ranked also ranked relatively highest.

Organization: Government of Yukon | Gouvernement du Yukon
Pan-Canadian Geoscience Strategy: enhancing geoscience data, knowledge and access for a stronger future

The Pan-Canadian Geoscience Strategy is a framework for enhanced collaboration between federal, provincial, and territorial geological surveys on five shared, and equally important, national geoscience priorities: Advancing framework geoscience; Advancing mineral and energypotential modelling; Facilitating access to online data; Supporting the training of next generation geoscientists; and Enhancing public literacy in geoscience. The goal is that by enhancing cooperation on these priority areas, geological surveys can better advance economic competitiveness (e.g.supporting mineral/energy exploration) and serve the public good (e.g. supporting evidence-based land use planning, public safety, climate change adaptation). While the Strategy is primarily a framework rather than an action plan, it also lays out some preliminary commitments towards early actions.The Strategy vision, mission statements, and priority areas were developed through consensus among the National Geological Surveys Committee, in consultation with a variety of geoscience users.

Organization: Government of Yukon | Gouvernement du Yukon
New U-Pb age constraints at Freegold Mountain: Evidence for multiple phases of polymetallic mid- to Late Cretaceous mineralization.

In this contribution, we present new U-Pb age data for ten intrusive units that bracket the timing of polymetallic mineralization occurring within the Northern Freegold Resources Ltd. (NFR), Freegold Mountain project area. Polymetallic mineralization occurring in the Tinta zone predates trachytic dykes (~109 Ma) and represents the earliest phase of mineralization recognized on the Freegold Mountain property thus far. Feldspar porphyry dykes that intrude the Revenue zone are correlative to the Nucleus zone feldspar porphyry dykes, and yield ages of ~105-104 Ma, indicating that the structural corridor in which Au mineralization occurred was active from at least this time. Furthermore, monzodiorite was emplaced at ~107 Ma within the Revenue zone. An ~97 Ma aplitic dyke that intrudes porphyritic granite of the Stoddart intrusion predates ~94 Ma Mo-Cu-W mineralization. Andesitic dykes (~77 Ma) that crosscut the Stoddart porphyry and rhyolitic dykes (~75 Ma) intruding the Revenue zone, represent Carmacks-age volcanism in the region. These new age data indicate that economically important mineralizing events took place over a period of at least 40 Ma.

Organization: Government of Yukon | Gouvernement du Yukon
Bathymetric and geophysical surveys of the southern end of Kluane Lake, Yukon

Initial observations of lakebed geomorphology and morphodynamic processes operating at the southern end of Kluane Lake are presented here. In August 2013, multibeam and parametric echo sounders were used to map, with high resolution, the bathymetry and sub-bottom stratigraphy of the lakebed, and an acoustic Doppler current profiler and laser grain size analyser were used to measure flow and sediment transport over the Slims River delta. A series of low-angle asymmetric sediment waves were observed on the delta top, as well as buried within the delta sediments. These older bedforms were buried as the delta prograded into the lake over the past three centuries. Other delta surface features include small scarps and channels. Drowned terraces observed on the eastern margin of the lake indicate that lake level was stable and lower than present at least four times during the Holocene, to a maximum of 47 m below present datum.

Organization: Government of Yukon | Gouvernement du Yukon
Potential radiogenic heat production from Cretaceous and younger granitoid plutons in southern Yukon

The map presents results for calculations of the potential for Cretaceous and younger granitoid plutons to produce radiogenic heat. The calculations were performed using U, Th, and K concentrations from whole rock geochemical data compiled from literature and from the YGS archives. The objective of this exercise was to identify plutons with anomalously high potential for radiogenic heat production to use as a targeting tool for geothermal resource exploration.

Organization: Government of Yukon | Gouvernement du Yukon
Total field magnetic, Wernecke Mountain Aeromagnetic Survey, NTS 106C (south half), Yukon

This map of the magnetic total field was derived from data acquired during an aeromagnetic survey carried out by Fugro Airborne Surveys during the period April 17, 2006 to August 26, 2007. The data were recorded using a split-beam cesium vapour magnetometer (sensitivity = 0.005 nT) mounted in the tail boom of a Cessna Caravan aircraft. The nominal traverse and control line spacings were, respectively, 800 m and 2600 m, and the aircraft flew at a nominal terrain clearance of 250 m. Traverse lines were oriented N30 degrees E with orthogonal control lines. The flight path was recovered following post-flight differential corrections to the raw Global Positioning System data and inspection of ground images recorded by a vertically-mounted video camera. The survey was flown on a pre-determined flight surface to minimize differences in magnetic values at the intersections of control and traverse lines. These differences were computer-analysed to obtain a mutually levelled set of flight-line magnetic data. The levelled values were then interpolated to a 200 m grid. The International Geomagnetic Reference Field was not removed from the magnetic total field.

Organization: Government of Yukon | Gouvernement du Yukon
Geological Setting and Stratiform Lead-Zinc-Barite Mineralization of Tom Claims, MacMillan pass, Yukon Territory

The Macmillan Pass area has been of economic interest since the discovery of significant barite-lead-zinc-silver mineralization by Hudson Bay Exploration and Development prospectors in 1951. In addition to barite-hosted mineralization of the MacMillan Pass area, the Upper Devonian to Lower Mississippian "Black Clastic" Unit and its correlative rocks in southeast Yukon and northeast British Columbia contain perhaps the world's largest known accumulations of sedimentary barite.

TOM West Zone, TOM East Zone and JASON mineral deposits are syngenetic, stratiform accumulations principally composed of finely interlaminated barite, black siliceous argillite, sphalerite, galena and pyrite. The three deposits occur at approximately the same stratigraphic interval, marking the sedimentary transition between locally derived slump and slide debris deposits of Unit 3a with finer grained black shales and minor conglomerates of Unit 3b.

This Open File includes:: Regional Geology-Selwyn Mountains (1::263 157-scale bedrock map) and Geology of MacMillan Pass area, Yukon Territory (1::111 111-scale bedrock map with cross-section).

Organization: Government of Yukon | Gouvernement du Yukon
First vertical derivative of the magnetic field, Wernecke Mountain Aeromagnetic Survey, NTS 106D (north half), Yukon. Yukon Geological Survey, Open File

This map of the first vertical derivative of the magnetic field was derived from data acquired during an aeromagnetic survey carried out by Fugro Airborne Surveys during the period April 17, 2006 to August 26, 2007. The data were recorded using a split-beam cesium vapour magnetometer (sensitivity = 0.005 nT) mounted in the tail boom of a Cessna Caravan aircraft. The nominal traverse and control line spacings were, respectively, 800 m and 2 600 m, and the aircraft flew at a nominal terrain clearance of 250 m. Traverse lines were oriented N30degreesE with orthogonal control lines. The flight path was recovered following post-flight differential corrections to the raw Global Positioning System data and inspection of ground images recorded by a vertically-mounted video camera. The survey was flown on a pre-determined flight surface to minimize differences in magnetic values at the intersections of control and traverse lines. These differences were computer-analysed to obtain a mutually levelled set of flight-line magnetic data. The levelled values were then interpolated to a 200 m grid. The International Geomagnetic Reference Field was not removed from the magnetic total field.

The first vertical derivative of the magnetic field is the rate of change of the magnetic field in the vertical direction. Computation of the first vertical derivative removes long-wavelength features of the magnetic field and significantly improves the resolution of closely spaced and superposed anomalies. A property of first vertical derivative maps is the coincidence of the zero-value contour with vertical contacts at high magnetic latitudes (Hood, 1965).

Organization: Government of Yukon | Gouvernement du Yukon
Goulter Property, central Yukon

This property, which adjoins the Mt. Nansen property on the north side, is bisected by Discovery Creek, a significant placer gold producer. Two parallel zones of anastomosing quartz veins and porphyry dykes cut Cretaceous intrusive rocks and contain variable amounts of gold and silver over substantial widths. The two mineralized zones lie approximately on trend with the Brown-McDade and Webber-Huestis zones on the Mt. Nansen property to the south, and with gold and silver-bering veins on the Tawa property to the north. The mineralized zones are deeply oxidized, and the property appears to have good potential as a bulk tonnage low-grade oxide gold deposit.

Organization: Government of Yukon | Gouvernement du Yukon
Upper Paleozoic strata with potential for massive sulphide mineralization, northwestern Lansing map area (105 N), Yukon

Northwestern Lansing map area, 120 km east of Mayo, lacks known mineral occurrences yet contains upper Paleozoic stratigraphic units similar to those at volcanic-hosted and sedimentary exhalative deposits such as Marg and Macmillan Pass. Pyritic and locally baritic Earn Group and (previously unmapped) younger strata underlie most of the area. The sedimentary rocks are cleaved and folded but less strained than equivalent rocks in adjacent Mayo map area, and most contain abundant iron sulphide laminae, nodules, and replacements. A muscovite granite intrudes the grey-green phyllite. The Robert Service Thrust at the southern boundary of the Upper Paleozoic units, appears offset by steep, northwest-trending faults.

Organization: Government of Yukon | Gouvernement du Yukon
Geology and mineral potential of Yukon-Tanana Terrane in the Livingstone Creek area (NTS 105E/8), south-central Yukon

Yukon-Tanana Terrane in the Livingstone Creek area comprises five successions of metasedimentary and metavolcanic rocks which range in age from pre-Upper Devonian to Lower Mississippian. They are correlated with Lower Mississippian and older strata in the Glenlyon and Finlayson Lake areas. Yukon-Tanana rocks are intruded by at least five plutonic suites, ranging in age from Late Devonian to Late Cretaceous. The structural style of the area is dominated by a transposition foliation which is axial planar to isoclinal folds of an earlier foliation. The transposition foliation is itself folded by northeast-verging open folds. The d'Abbadie fault zone, a 1-km-wide zone of imbricate fault slices in
the eastern part of the area, is characterized by multiple generations of ductile fabrics overprinted by younger cataclastic breccia zones. Deformation along d¿Abbadie fault is in part constrained by syn-tectonic emplacement of a ca. 96 Ma granite pluton along the western margin of the fault zone. Two new showings are reported here: a Pb-Ag vein occurrence and a pyrrhotite skarn. In addition, anomalous Cu-Zn values in graphitic phyllite associated with chloritic schist suggest potential for volcanogenic massive sulphide- (VMS) or hybrid VMS-sedimentary-exhalative-style mineralization in the area.

Organization: Government of Yukon | Gouvernement du Yukon
Occurrences of Psigraptus and Chigraptus gen. nov. in the Tremadoc of the Yukon Territory, Canada

The full stratigraphical context of the type materials of Psigraptus arcticus and P. lenzi from Rock River are given, as well as a new occurrence of the Psigraptus–Adelograptus Zone in the Upper Canyon, Peel River of Canada's Yukon Territory. A new monotypic genus Chigraptus is created for a quadriradiate anisograptid graptolite with four unbranched first-order stipes, a horizontal to slightly reclined rhabdosome and isolate autothecae. The genus is found only at the base of the Early Tremadoc Anisograptus–Staurograptus Zone. Chigraptus may have given rise to the Late Tremadoc Psigraptus by a reduction in first-order stipes and by increased reclination.

Organization: Government of Yukon | Gouvernement du Yukon
Landscape of museum collections online

The Landscape of Museum Collections Online project was originally an internal project intended to help the Canadian Heritage Information Network (CHIN) better understand the capacity and digital transition of museums and heritage institutions managing collections in Canada. This dataset consists of a list of heritage institutions, each represented by a unique identifier, along with a set of attributes providing information on the institution's online collections, web presence, and organizational capacity for digital initiatives. In addition to data collected by CHIN the dataset also includes: (1) data on the presence of analyzed institutions in other data sources; (2) two attributes generated via spatial analysis; and (3) two attributes to facilitate the merging with other relevant datasets.

Organization: Canadian Heritage | Patrimoine canadien
2026—Report of the Auditor General of Canada—Modernizing the Pay System

This audit focuses on whether the Treasury Board of Canada Secretariat and Public Services and Procurement Canada were managing the Human Resources and Pay Transformation Project so they can ensure that federal public servants’ pay transactions will be accurate and on time and that the project will provide value for money once implemented. Specifically, the audit looks at how the departments were modernizing the pay system in the early stages of this project.

Organization: Office of the Auditor General of Canada | Bureau du vérificateur général du Canada
NAFO Division 4T Atlantic Herring Landings

PURPOSE:
Monitor commercial landings of NAFO Division 4T Atlantic herring.

DESCRIPTION:
This dataset contains Atlantic herring landings (in metric tonnes) by year, spawning stock (spring and fall spawners), fishing season (spring and fall), and gear type (fixed and mobile).

Stock identification (spring or fall spawners) is determined through port sampling. Two fish samples are collected per week in each herring fishing area for this purpose.

Daily landings data are obtained from the DFO Statistics Branch.
            
USE LIMITATION:
To ensure scientific integrity and appropriate use of the data, we would encourage you to contact the data custodian.

Organization: Fisheries and Oceans Canada | Pêches et Océans Canada