Search
Skip to Search Results- 1Bandara, Sasiri
- 1Beaton, Neil I.
- 1Harvey, Jordan R
- 1Jensen, Britta J.L.
- 1Mahony, Matthew E
- 1Pryer, Laurence W
-
50,000 years of paleoenvironmental change recorded in meteoric waters and coeval paleoecological and cryostratigraphic indicators from the Klondike goldfields, Yukon, Canada
DownloadFall 2015
A 50,000 year record of meteoric water isotopes (δ2H/δ18O) and paleoenvironmental conditions is presented from syngenetic ice-rich permafrost and macrofossils from eight sites in the Klondike area of central Yukon. Four sedimentary units are recognized based on cryostratigraphy, paleoecological...
-
Fall 2016
The Alaska Highway through Southwestern Yukon is located in the discontinuous permafrost zone with many areas of the highway corridor associated with degrading permafrost. Given the strategic value of the corridor, it is critical to have a clear understanding of permafrost characteristics and...
-
Fall 2021
Cryptotephra research is one of the fastest growing subfields of tephrochronology. Here the extraction, processing, and analytical techniques required for cryptotephra studies are reviewed and assessed in detail. A workflow is suggested depending on the site’s characteristics to improve the...
-
Diagenetic Controls on Hydrothermal Fluid Flow in the Osiris, Isis, and Isis East Carlin-Type Gold Showings, Nadaleen Trend, Yukon
DownloadFall 2015
Following ATAC Resources Ltd.’s 2010 discovery of the gold prospects in the Nadaleen Trend (Central Yukon), company geologists and consultants determined that Precambrian carbonate rocks within the trend contain large endowments of gold located in the hinges of anticlines and fault zones. ...
-
Genesis and controls on mineralization at the Hammer Zone silver showing, Mount Mye Trend, hosted by the Anvil Batholith, South-Central Yukon
DownloadFall 2017
When Silver Range resources acquired the Keg property in 2010, one of the prospects included was the Hammer Zone. Ensuing mapping and surface sampling found the Hammer Zone to be a small, bonanza-grade, epithermal silver system contained entirely within the Anvil Batholith. Initial petrographic...
-
Fall 2017
The mid-Cretaceous Ag-Pb-Zn-Cu-Sn Keglovic deposit, located in the south-central Yukon, is formed by the superposition of an earlier Pb-Zn skarn system with later Keno Hill-style Ag-Pb-Zn veins and is the product of complex regional geological processes, which occur synchronously with...
-
Geochemical Characterization and Fluid History of the Tiger Zone; a Tertiary Distal Carbonate-Replacement Intrusion-Related Gold Deposit, Central Yukon
DownloadSpring 2013
A paragenetic and geochemical study has resulted in the classification of the Tiger zone as a Tertiary-aged intrusion-related gold deposit. Gold-bearing mineralization occurs in two geochemically and temporally distinct assemblages. The first assemblage contains carbonate-replacement,...
-
Records of atmospheric mercury deposition and post-depositional mobility in peat permafrost archives from central and northern Yukon, Canada
DownloadFall 2017
Environmental archives provide a feasible means for studying the biogeochemical cycling of heavy metals including mercury (Hg). Although many temperate peat bogs have been successfully used to reconstruct natural and anthropogenic atmospheric Hg deposition fluxes, northern circumpolar permafrost...
-
Spring 2013
In this dissertation, tephrostratigraphy is used as the central method to address issues of chronology in the late Quaternary sedimentary record of eastern Beringia (non-glaciated Yukon and Alaska) at a variety of spatial and temporal scales. The Palisades, central Alaska, preserves...