Stratigraphy, structure and timing of deformation of southwestern New World Island, Newfoundland

Characteristics and Evolution of the Central Mobile Belt, Canadian Appalachians

“…Deformation Events and Tectonic History.-Detailed structural analysis of key areas in northcentral Newfoundland (e.g., Nelson 1981;Karlstrom et al 1982;Elliott 1985;van der Pluijm 1986) and in northern New Brunswick (e.g., Helmstaedt 1971;Irrinki 1979;van Staal and Williams 1984;van Staal 1987) show a remarkable similarity in deformation style and sequence. In this section, the different deformation generations and their characteristics for the New World Island area of Newfoundland and the Bathurst area of New Brunswick will be discussed.…”

“…The earliest deformation (Dl) is markedly heterogeneous and characterized by recumbent folds and bedding-parallel faults that are typical of thrusting. Major thrusts have been recognized in the CMB of Newfoundland, as well as New Brunswick (Pajari and Currie 1978;Nelson 1981;Thurlow 1981;Blackwood 1982;Fyffe 1982;Karlstrom et al 1982;Nowlan and Thurlow 1984;Colman-Sadd and Swinden 1984;van Staal and Williams 1984;Elliott 1985;Kusky and Kidd 1985;van der Pluijm 1986;van Staal 1987;and others). The direction of earliest thrusting in northern New Brunswick was toward the southeast (van Staal 1987), and this direction has been reported from several places in Newfound-land (e.g., Colman-Sadd and Swinden 1984).…”

Tectonic implications of early silurian thrust imbrication of the northern exploits subzone, Central Newfoundland

“…(1979), Colman-Sadd (1980), Thurlow (1981), Colman-Sadd and Swinden (1984), van der Pluijm, (1984van der Pluijm, ( , 1986van der Pluijm, ( ,1987. van der Pluijm and van Staal(1988) Kusky (1985) Kusky and Kidd (1985), Elliott (1985a); and Elliott and Williams (1988). Most workers have reported south-or southeast-directed thrusting l \ .…”

“…Elliott ef al. (1991) report that thrusting began on New World Island in the Llandoverian or perhaps as early as Ashgillian (Elliott, 1985a), and U-Pb dates on cross-cutting intrusions show that thrusting ended there by 408+2 Ma (Pridolian, or Late Silurian). Cross-cutting plutonic rocks presumably of the Hodges Hill Complex show that thrusting ended in the New Bay Pond area by Late Silurian-Early Devonian.…”