CGRG Bibliography of Canadian Geomorphology
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Author : Ferbey, T.
Date : 2010.
Title : Quaternary geology and till geochemistry of the Nadina River map srea (NTS 093E/15), west-central British Columbia.
Publication : Geological Fieldwork 2009. Paper 2010-1. British Columbia Ministry of Energy, Mines and Petroleum Resources. Victoria, BC.
Issue : Paper 2010-1:
Page(s) : 43-53.
Abstract
The Tahtsa Lake district has high pote tial to host new porphyry Cu±Mo and polymetallic vein-style (including Au) mineralization. Centred on Tahtsa Lake (approximately 100 km south of Houston, British Columbia), this district, and areas immediately adjacent to it, have a rich mineral exploration history and at present host a producing por phyry Cu-Mo mine (Huckleberry mine) and numeruous developed Cu±Mo prospects. Currently there are large areas of unstaked ground within, and adjacent to, the northern and north eastern portion of the Tahtsa Lake district. Much of this area is covered with glacial drift and continuous bedrock out crop is limited to the higher peaks and their steep flanks. Till geochemical surveys are an effective method for assessing the metallic mineral potential of areas covered with glacial drift and are ideally suited to assessing the potential for new mineralization in this area. Till geochemical surveys are also well suited for following up on air borne geophysical data recently acquired by Geoscience BC for the QUEST-West Project area, where drift can cover electrically anomalous bedrock. A two-year Quaternary geology and till geochemistry program is currently underway within the northern portion of the Tahtsa Lake district, and adjacent areas (NTS map areas 093E/15, 16, 093L/01, 02). The 2009 field season focused in the Nadina River map area (NTS 093E/15) where 84 basal till sam ples, each weighing 2– 3 kg, were collected for major, minor and trace-element geochemical analyses, and an additional 16 till samples, each weighing 10–15 kg, were collected for separation and analysis of heavy mineral concentrates and gold grain counts. On going and complementary to this till geochemical sur vey, is a 1:50 000 scale surficial geology mapping and regional ice-flow study. Given that the study area experienced an ice-flow reversal during the Late Wisconsinan glacial maximum, assessing and quantifying net transport direction of basal till in the study area will be a significant contribution to the understand ing of detrital dispersion for the region. Observations made during the 2009 field season suggest that Quaternary sediments within the study area are not necessarily as areally extensive nor thick as was once thought, and therefore may not be a significant hindrance to mineral exploration.
Bibliography of Canadian Geomorphology