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Yukon Geological Survey

YGS Publication Details

Reference Number
Reference Type
Yukon Geological Survey
Document Type
Annual Report Paper

Title: The structural framework for Carlin-type gold mineralization in the Nadaleen trend, Yukon
NTS Mapsheet(s): 106C01
Citation: Steiner, A., Hickey, K. and Coulter, A.B., 2018. The structural framework for Carlin-type gold mineralization in the Nadaleen trend, Yukon. In: Yukon Exploration and Geology 2017, K.E. MacFarlane (ed.), Yukon Geological Survey, p. 139-149.

Map Location


Structure imparts a significant control on the distribution of Carlin-type gold mineralization recently discovered in the Nadaleen trend, Yukon. An improved understanding of the structural framework for gold mineralization is essential for continued exploration success and interpreting ore fluid controls. Structural observations from the Osiris cluster of the Nadaleen trend indicate that NW-verging F1 folds were refolded in response to later SSW-NNE directed contraction. F2 folds have a subvertical ESE-striking axial plane with subvertically plunging axes on steep F1 limbs and subhorizontal fold axes in shallow F1 limbs. F2 folds have a pervasive axial planar cleavage that is recognized regionally. The steeply dipping Osiris and Nadaleen faults appear to cut all folds. Mineralization is spatially associated with later NW-striking faults in the Conrad zone. Much of the folding within the mineralized Conrad limestone is synsedimentary and its geometry reflects its emplacement as an olistostrome.



Related Publications

Reference Type
Document Type
YEG2017 Contained By Yukon Geological Survey Annual Report Yukon Exploration and Geology 2017