Geological Map of the North Mountain Basalt from Cape Split to Brier Island, with Comments on Its Resource Potential
Report of Activities 2005 39 Geological Map of the North Mountain Basalt from Cape Split to Brier Island, with Comments on its Resource Potential D. J. Kontak Introduction preparation and will be published elsewhere (Kontak, in prep.), where it is demonstrated that the sequence corresponds to other continental flood The Jurassic North Mountain Basalt (NMB) forms basalt provinces (e.g. 65 Ma Deccan Traps, 17- a prominent cuesta along the southern coastline of 15 Ma Columbia River Basalt Group) that have the Bay of Fundy, and is contiguous with outliers analogues in the active flows of Hawaii. This along the northern side of the bay (Fig. 1). This correspondence provides a basis for interpreting the prominent topographic feature, roughly 200 km in volcanological features of the NMB (see Kontak, length, is the focus of this paper and the topic of 2002, for discussion). field studies over the past few years (Kontak, 2000, 2002; Kontak et al., 2005). One result of this work is the first geological map of this unit over the Geological Setting length of the North Mountain (Kontak, 2005, 2006), which provides a basis for assessment of the Numerous, early Mesozoic continental tholeiitic area’s resources. Previous work indicated that the basalt flows, dykes and sills formed along the NMB contained three distinct flow units, referred eastern margin of North America, concurrent with to as the Lower, Middle and Upper flow units the infilling of basins with non-marine sedimentary (Kontak, 2002), and the results of this work have rocks during Pangean rupture, as a prelude to the shown that this subdivision can be extended over opening of the present-day Atlantic Ocean.
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