| Title | Syn-magmatic deformation and structural relationships within Jurassic granitoid rocks of the Aishihik batholith, Yukon: 2015 report of activities for GEM-2 Cordillera Project |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Chapman, J B |
| Source | Geological Survey of Canada, Open File 7961, 2015, 12 pages, https://doi.org/10.4095/297300  Open Access |
| Image |  |
| Year | 2015 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is related to Report of activities, 2017,
for Yukon tectonic evolution - late Mesozoic to Tertiary: GEM2 Cordillera Project |
| File format | pdf |
| Province | Yukon |
| NTS | 115H/09; 115H/10; 115H/11; 115H/12; 115H/13; 115H/14; 115H/15; 115H/16 |
| Area | Northern Cordillera; Nisling River; Razor Mountain; Kirkland Creek |
| Lat/Long WENS | -138.0000 -136.0000 62.2500 61.5000 |
| Subjects | igneous and metamorphic petrology; structural geology; magmatism; magmatic deposits; magmatic rocks; structural interpretations; structural analyses; structural domains; metamorphic rocks; deformation;
plutonic rocks; granites; Yukon-Tanana Terrane; Paleozoic |
| Illustrations | location maps; photographs |
| Program | GEM2: Geo-mapping for Energy and Minerals Western Cordillera, Regional porphyry transitions |
| Released | 2015 11 17 |
| Abstract | (Summary)
Granitoid igneous rocks formed 205-180 million years ago (late Triassic to early Jurassic) host Yukon's only operating copper mine and other significant copper and gold deposits.
However, exploration for additional deposits is hampered by many factors, including a lack of knowledge of the controls that determine the location of any individual deposit. Copper minerals at Minto mine and the Carmack Copper exploration property,
two of the largest deposits in Yukon, are hosted within narrow corridors of highly-deformed rocks, within much larger bodies of similar but undeformed rock. Similar deformation has previously been seen within granitoid rocks in the western Aishihik
batholith, interpreted to have been caused during their initial formation. This study aims to examine northern and eastern portions of the Aishihik batholith, to determine the regional extent of this deformation, and to assess the relative roles of
initial formation and later tectonic processes. |
| Summary | (Plain Language Summary, not published)
Granite-like igneous rocks formed 180-205 million years ago host Yukon's only operating copper mine and other significant copper and gold deposits.
However, exploration for additional deposits is hampered by a lack of knowledge of the controls that determine the location of any individual deposit. Copper minerals at two of the largest deposits in Yukon are hosted within narrow corridors of
highly-deformed rocks, within much larger bodies of similar but undeformed rock. It is not clear when these rocks became deformed, nor what the driving processes were. Similar deformation has previously been seen within granitoid rocks in the western
Aishihik batholith, interpreted to have been caused during their initial formation. This study aims to examine northern and eastern portions of the Aishihik batholith, to determine the regional extent of this deformation, and to assess the relative
roles of initial formation and later tectonic processes. |
| GEOSCAN ID | 297300 |
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