Proposed Title 1: - Queen's University

2004) are all interpreted as related to Kenorland breakup. The 2.0-1.9 Ga period is
consistent with the compressional Taltson-Thelon Orogen (Henderson et al., 1990; Chacko
et al., 2000) and Snowbird Tectonic Zone (Baldwin et al., 2003, Berman et al., 2007a), in
the west and east of the Beaverlodge area, respectively (Fig. 2.14).
Figure 2.14. Regional geological map of the North American shield showing lithotectonic
units, the major orogenic phases and the Beaverlodge location. The map also show the Trans-
Hudson orogen surrounded by the Wyoming, Slave, Hearne, Rae and Superior cratons that
constitute the central core of the North American craton (Laurentia) (modified from
Hoffman, 1988).
The Thluicho Lake Group, a fining-upwards, conglomerate–arkose–argillite
succession located west of the Beaverlodge area, deposited in an intermontane setting
towards the end of the Taltson Orogen (Ashton et al., 2009a). Bethune et al. (2010)
interpreted the first stage of folding as associated with a north-northeast-directed folding
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