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Phosphorites, ironstones, and secondary phosphates in Mid-Cretaceous flysch...
The Blow River Formation was deposited in the Blow Trough, a north-trending, middle Cretaceous downwarp near the junction of the Western Canada Seaway and the Brooks and...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Placer deposit grain size and water quality sampling program
A program of placer deposit sediment and water sampling was initiated by Indian and Northern Affairs Canada (DIAND) in the summer of 1998 to investigate possible relationships...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Placer deposits of Clear Creek drainage basin 115 P, central Yukon
Placer gold in the Clear Creek drainage basin is found in a variety of gravel deposits, each of which is associated with a specific geological setting. The schematic profile of...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Placer deposits of the Yukon: overview and potential for new discoveries
Historic placer mining areas in Yukon can be grouped into ten areas: Klondike; Sixtymile; Fortymile; Clear Creek; Moosehorn Range; Stewart River; Clear Creek; Mayo; Dawson...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Placer deposits: Their formation, evaluation, and exploitation, Yukon
The formation of placer deposits has several prerequisites. They include a source for the gold, a mechanism to concentrate it, and time for the concentrating mechanism to work....Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Placer gold and associated heavy minerals of the Clear Creek drainage,...
Placer gold mining in Clear Creek extends back to 1900, when the discovery claim was staked. Approximately 129,000 crude ounces (4012 kg) of gold have been reported since 1941...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Placer gravels of Miller Creek, Sixtymile River area, 116 B,C
Within the Sixtymile River drainage basin, Quaternary placer deposits include tributary valley bottom gulch gravel, a broad main valley alluvial plain, and high level terrace...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
On the geology of the Tertiary Wrangell lavas in the St. Clare province, St....
The Wrangell lavas in the St. Clare province of southwestern Yukon are part of the larger Wrangell volcanic belt that has been active throughout the Late Cenozoic. These lavas...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Ore mineralogy and formation conditions of vein and replacement-type...
The Logan (MINFILE 105B 099) and YP (MINFILE 105B 001) zinc-lead-silver deposits are located in the Rancheria District, Yukon Territory. These deposits and numerous other...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Origin of gold in the White Channel sediments of the Klondike region, Yukon Territory
Results of a study to determine the origin of alteration in the Plio-Pleistocene White Channel sediments and bedrock using field observations, mineralogical and geochemical...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Origin of the Clinton Creek Asbestos Deposit
Asbestos in most Cordilleran deposits has been considered a product of fracturing, metasomatism and thermal metamorphism of ultramafic rocks by mesozoic intrusions. Such a...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Overview of Yukon placer geology, gold production and prospects
The physiography and glacial history of Yukon bear directly on the geological setting, grade and economic viability of Yukon placer deposits. The limits of several advances of...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Paleomagnetic study of the Late Cretaceous Seymour Creek stock, Yukon:...
Paleomagnetic results are presented for 154 specimens from 16 sites in the Late Cretaceous Seymour Creek stock, a small granodioritic intrusion emplaced into Paleozoic gneisses...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Permo-Triassic Isotopic Dates for Blueschist, Ross River Area, Yukon
Rb-Sr and K-Ar age determinations for muscovite-bearing blueschist in the Yukon Tanana terrane near Ross River indicate a minimum metamorphic age of approximately 250 Ma, and a...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Post-glacial vegetation history of the Aishihik Basin and its vicinity,...
Nine pollen profiles were obtained along a broad latitudinal transect extending from the Upper Nisling Valley to the Ittlemit Lake and Bear Lakes areas in the southwest Yukon...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
New paleontological investigations of upper Triassic shallow-water reef...
The thickest and best-developed Upper Triassic reef complex in the entire North American Cordillera is at Lime Peak in the southern Yukon. The Lime Peak reef complex is a...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Rock River Basin (NTS 95D/11 and 14)
Coal was discovered in the Rock River Basin by Sulpetro Minerals Ltd. In July 1980, and five holes sunk to delimit coal occurrences in September 1981. Samples were collected...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Sedimentology and stratigraphy of Duncan Creek placer deposits, Mayo, central Yukon
Placer deposits in the Mayo area occur in a wide variety of geomorphic settings, including alluvial fans, gulch gravels, valley-bottoms (alluvial plains), and bedrock terrace...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Sedimentology of a high level terrace placer gold deposit, Klondike Valley, Yukon
Significant economic concentrations of placer gold were first recognized in an intermediate level terrace near Dawson City in the late 1980's Regional surficial mapping has...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML -
Selected excerpts from placer gold recovery research
The highest percentage gold recoveries occurred at mines which screened their feed to minus one inch, used both expanded metal and angle iron riffles on top of nomad matting...Date updated: 2011-04-04Date created: 2011-04-04Publisher: Yukon Geological SurveyFormat: HTML