Early Neoproterozoic Stratigraphy of the Mackenzie Mountains

Regions: Sahtu Settlement Area

Tags: geochemistry, mineral exploration, mineralogy

Principal Investigator: Halverson, Galen P (2)
Licence Number: 15480
Organization: McGill University
Licensed Year(s): 2014 2011
Issued: Jun 09, 2014
Project Team: Galen P. Halverson (Principal Investigator, McGill University), Marcus Kunzmann (PhD Student, McGill University), Peter W. Crockford (PhD Student, McGill University), Justin V. Strauss (PhD Student, Harvard University), Erik Sperling (Postdoctoral Fellow, Harvard University), Lyle Nelson (Undergraduate Student, Harvard University)

Objective(s): To collect high quality and high resolution stratigraphic and sedimentological data in the field, along with accompanying samples for geochemical and petrological analysis.

Project Description: The objectives are to collect high quality and high resolution stratigraphic and sedimentological data in the field, along with accompanying samples for geochemical and petrological analysis. At the same time, all field areas in which the group works will be mapped in detail.

The field party will separate into two groups. One group will be focused on logging stratigraphic sections and sampling in the latter part of the late Proterozoic succession. A second group will focus on the lower part of the late Proterozoic succession. Both groups will operate by fly camps and carry out all fieldwork on foot using only rock hammers, compasses, and other basic, non-mechanical tools. Mapping will be done on 1:50K air photos, and map data will be compiled in a GIS database at Harvard and McGill. Geochemical analyses, namely carbon, oxygen, and sulfur isotopes and carbonates, as well trace element geochemistry on shales will be carried out at McGill and Harvard universities.

The underlying driver of this research is to read Earth's ancient history, in the epoch leading up to animal evolution and diversification. To this end, this project will shed light on the significance of rocks in the Mackenzie Mountains. At the same time, results will be applicable to regional mapping and mineral exploration.

All data will be made publicly available through publication in international journals, conference proceedings, and newsletters. Map data will be made available to the NWT Geoscience Office. Summaries of results and reprints of publications will be provided to interested parties. Upon request, members of the research team are prepared to give public lectures regarding their research and the role of the rocks in NWT in informing this research.

The fieldwork for this study will be conducted from July 2, 2014 to July 15, 2014.