Geological Survey Of Canada Current Research Online No 2002 C25

This paper reports on the first field season of a new initiative designed to provide a regional tectonostratigraphic context for supracrustal & plutonic rocks that form the northern flank of the Trans-Hudson Orogen internides. It reviews the regional geology of the Lynn Lake belt area of northern Manitoba, then presents results of potential tectonostratigraphic correlations with the Reindeer Lake area of Saskatchewan as well as descriptions of supracrustal rocks in the Southern Indian Domain (Pukatawakan Bay and Missi Falls-Partridge Breast Lake areas). The final section assesses the economic potential of the study area.

This paper presents results from uranium-lead dating of plutonic, volcanic, & sedimentary rocks from the Southern Indian Lake to Granville Lake area of northern Manitoba. The samples analyzed were collected from a range of tectonostratigraphic settings and provide constraints on the age of volcanism & sedimentation in the Rusty Lake Belt, on the deposition of fluvial to littoral facies sediments in the Partridge Breast Belt, and on the emplacement of orthogneiss and plutonic rocks.