Alternative Interpretations for the Casino Complex and Klotassin Batholith in the Yukon Crystalline Terrane

1975 ◽  
Vol 12 (11) ◽  
pp. 1910-1916 ◽  
Author(s):  
Colin I. Godwin
Keyword(s):  
Porphyry Copper ◽  
Yukon Territory ◽  
Metamorphic Complex ◽  
Early Tertiary ◽  
Molybdenum Deposit ◽  
Two Samples

A small part of the Klotassin batholith, that intrudes the Yukon Metamorphic Complex, has been studied in detail near the Casino porphyry copper–molybdenum deposit, Yukon Territory. Eleven potassium–argon model ages, including concordant biotite and hornblende ages, indicate a mid-Cretaceous (100 Ma) age for this batholith. All ages are indistinguishable statistically. This age, therefore, is interpreted as the age of emplacement of the Klotassin batholith. Older dates can be expected from rocks of the Yukon Metamorphic Complex, the Carmacks batholith, and Aishihik batholith.The Casino complex, host to the Casino deposit, is dated at latest-Cretaceous (70 Ma), based on potassium–argon model ages from two samples of biotite. The complex is clearly intrusive into and younger than the Klotassin batholith. Previously, this unit was interpreted as Early Tertiary. Possibly the several so called Early Tertiary volcanic and hypabyssal rocks in Yukon are not strictly contemporaneous.

Geology of the post-collisional porphyry copper–molybdenum deposit at Qulong, Tibet

2009 ◽  
Vol 36 (1-3) ◽  
pp. 133-159 ◽  
Author(s):  
Zhiming Yang ◽  
Zengqian Hou ◽  
Noel C. White ◽  
Zhaoshan Chang ◽  
Zhenqing Li ◽  
...  
Keyword(s):  
Porphyry Copper ◽  
Molybdenum Deposit

Three-dimensional seismic crustal structure of the Monashee hinterland core complex on the Lithoprobe Southern Canadian Cordillera Transect

1995 ◽  
Vol 32 (10) ◽  
pp. 1531-1540 ◽  
Author(s):  
Kris Vasudevan ◽  
Frederick A. Cook ◽  
Rolf Maier
Keyword(s):  
Crustal Structure ◽  
Complex Geometry ◽  
Three Dimensional ◽  
Canadian Cordillera ◽  
Metamorphic Complex ◽  
Migration Process ◽  
The South ◽  
Core Complex ◽  
South Central ◽  
Early Tertiary

Three-dimensional seismic coverage in an approximately 12 km × 12 km area of the southern Monashee metamorphic complex in the south-central portion of the Canadian Cordillera reveals a complex geometry to the Mesozoic–early Tertiary contractional Monashee décollement. Data were acquired as part of the Lithoprobe Southern Canadian Cordillera Transect where two approximately perpendicular lines intersected on the south flank of the Monashee mountains in the hinterland of the Cordillera. Stacks of traces within 100 m × 100 m bins are nominally 6-fold, but range from zero to 108-fold due to the crooked nature of the lines. Both migrated and unmigrated data have been examined for interpretation, but the highly variable data quality and discontinuous reflectivity cause excessive added noise during the migration process.

The Myszków Porphyry Copper-Molybdenum Deposit, Poland

1994 ◽  
Vol 36 (10) ◽  
pp. 947-960 ◽  
Author(s):  
M. A. Chaffee ◽  
R. G. Eppinger ◽  
Krzysztof Lason ◽  
Jadwiga Slosarz ◽  
Maciej Podemski
Keyword(s):  
Porphyry Copper ◽  
Molybdenum Deposit
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