1. Regional and local ice-flow history in the vicinity of the Izok Lake Zn-Cu-Pb-Ag deposit, Nunavut1.
- Author
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Paulen, Roger C., McClenaghan, M. Beth, Hicken, Anna K., and Trenhaile, Alan
- Subjects
- *
GLACIATION , *SEDIMENTATION & deposition , *GEOMORPHOLOGY , *SULFIDES - Abstract
Ice-directional indicators were compiled from detailed field mapping at the Izok Lake volcanogenic massive sulphide deposit, in the Point Lake region of western Nunavut and eastern Northwest Territories. Cross-cutting erosional relationships and depositional landforms indicate that the Izok Lake area was affected by four ice-flow phases. It is this new glacial history interpretation that is used to explain the gahnite indicator mineral dispersal train down-ice of the Izok Lake deposit as being the net effect of all ice-flow phases. Its fan-shaped morphology is a function of the duration and intensity of two dominant glacial trajectories. Field-based mapping of all glacial-flow indicators are essential, and must be properly interpreted, to detect palimpsest dispersal trains. The resultant dispersal fan serves as a model for future exploration in the glaciated terrain of the north-central part of the Slave Province. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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