| Title | Middle Cretaceous trimodal Dawson Range magmatism in western Yukon: inferences on sources and tectonic setting (NTS 115-I, -J and -K) |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Zagorevski, A ;
Joyce, N; Ryan, J J; Roots, C; Jicha, B |
| Source | Geological Survey of Canada, Open File 7561, 2014, 1 sheet, https://doi.org/10.4095/293463  Open Access |
| Image |  |
| Year | 2014 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | Yukon |
| NTS | 115I/04; 115I/05; 115I/12; 115I/13; 115J; 115K/07; 115K/08; 115K/09; 115K/10; 115K/15; 115K/16 |
| Area | Dawson Range; Stevenson Ridge |
| Lat/Long WENS | -140.5000 -137.6667 63.2500 62.5000 |
| Subjects | tectonics; structural geology; igneous and metamorphic petrology; bedrock geology; igneous rocks; ultramafic rocks; terranes; tectonic history; tectonic elements; tectonic interpretations; magmatism;
metavolcanic rocks; clinopyroxenites; hornblendites; orthopyroxenites; harzburgites; dunites; structural features; Yukon-Tanana terrane; Finlayson assemblage; Buffalo Pitts peridotite; Harzburgite Peak; Mesozoic; Cretaceous |
| Illustrations | location maps; photographs; plots; schematic models |
| Program | GEM: Geo-mapping for Energy and Minerals Multiple Metals - NW Canadian Cordillera (Yukon, B.C.) |
| Released | 2014 01 29 |
| Summary | (Plain Language Summary, not published)
Tectonic models provide regional geoscience knowledge frameworks for understanding distribution of rock units, associated mineral deposits and duration
of mineral-prospective systems. This research builds on the GEM research in Yukon. We used compiled and new data to redefine the tectonic setting of plutonic and volcanic rocks that host intrusion-related deposits (Au-Cu-Mo) in Yukon. We identified
that magmas were emplaced very rapidly and had distinct sources and characteristics. This is the first time that distinct magma sources have been identified. These data provide the basis for interpretation of mineral deposits and their distribution
in the Cordillera as magma characteristics are paramount to understanding the mineralizing potential of intrusion related systems. The results of this research are applicable to understanding many intrusion-related systems in Canada. |
| GEOSCAN ID | 293463 |
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