Palaeomagnetism of Lower Devonian units from Gaspé, Quebec

Paleomagnetism of devonian units from Miguasha, Gaspe, P.Q., Canada.

“…Unfortunately, its magnetization is probably a Permian overprint; its paleopole position is 117•‹E, 47•‹N. This last value is reasonably close to the paleopole position of component C. In the northern Appalachians, the most important and/or recent paleomagnetic studies include the Perry Formation (ROBERTSON et al,1968), the Terrenceville Formation (KENT, 1982), the Compton Formation (SEGUIN et al, 1982a), the Hersey and Eastport formations (KENT and OPDYKE,1980), the Traveler felsite (SPARIOSU and KENT, 1983), the Gaspe sediments (SEGUIN, 1986) and the New Brunswick volcanics (SEQUIN and GAHE, 1985 (Roy, 1982;KENT and OPDYKE,1982). According to STEARNS and VAN DER VOO (1987), the Perry Formation was remagnetized in the Early Carboniferous time.…”

“…(Fig. 6) falls on the mid-Late to very Late Devonian sector for cratonic NA (SEGUIN, 1986). This suggests that component A is an overprint related to the Acadian orogeny.…”

“…Recent literature on Devonian paleomagnetic results of North America (DANKERS, 1982;JOHNSON and VAN DER VOO,1983;SPARIOSU and KENT, 1983;ROY et al, 1983;SEGUIN,1986) show that the paleomagnetic data set is either too limited in number and/or suffers from too many ambiguities to make reliable Paleozoic continental restorations. For instance, VAN DER VOO (1981) concluded that there was a small northward oriented Apparent Polar Wander Path (APWP) along longitude 105•‹ E for the Devonian period while SEGUIN (1986) arrived at a loop centered at latitude 10•‹ N and bounded by longitudes 90•‹ and 145•‹ E. The first interpretation implies little polar motion and the second, a large one. Theamount of scatter in published pole positions for the Devonian period seems to preclude any discussion of the APWP or of relative motion of displaced terrains during the Acadian orogeny.…”

Paleomagnetic reconnaissance of early Mesozoic carbonates from Williston Lake, northeastern British Columbia, Canada: evidence for late Mesozoic remagnetization

“…Numbers correspond to references as follows: 1, Bohnel et al 1990;2, Hagstrum and Sedlock 1990;3, Hagstrum et al 1985;4, Hagstrum et al 1993;5, Hagstrum 1994;6, Spall 1971;7, Hagstrum 1992;8, Gillett and Van Alstine 1982;9, Reynolds et al 1985;10, Frei and Blake 1987;11, Achache et al 1982;12, Russell et al 1982;13, Schwartz and Van der Voo 1984;14, Bogue et al 1989;15, Enkin et al 1997, Symons et al 1998b, 1999, Gillen et al 1999, Enkin et al 2000, and Cioppa et al 200016, Rees et al 1985;17, this study;18, Zhang et al 1996;19, Haeussler et al 1992;20, Butler et al 1988;21, Symons et al 1993;22, Wynne et al 1998;23, Smethurst et al 1999;24, Lewchuk et al 2000. Carboniferous -Early Permian remagnetizations from the northeastern Appalachians (Newfoundland, Nova Scotia, Quebec, and Maine) are from Irving and Strong (1984), Johnson and Van der Voo (1986), Pan et al (1993), Seguin (1986), Wellensiek et al (1990), andLombard et al (1991). Remagnetizations from the central-southern Appalachians (from New York State to Alabama) are from Miller and Kent (1988 and references therein), Stamatakos et al (1996 and references therein), and Hodych et al (1985).…”

Paleomagnetic reconnaissance of early Mesozoic carbonates from Williston Lake, northeastern British Columbia, Canada: evidence for late Mesozoic remagnetization

“…Numbers correspond to references as follows: 1, Bohnel et al 1990;2, Hagstrum and Sedlock 1990;3, Hagstrum et al 1985;4, Hagstrum et al 1993;5, Hagstrum 1994;6, Spall 1971;7, Hagstrum 1992;8, Gillett and Van Alstine 1982;9, Reynolds et al 1985;10, Frei and Blake 1987;11, Achache et al 1982;12, Russell et al 1982;13, Schwartz and Van der Voo 1984;14, Bogue et al 1989;15, Enkin et al 1997, Symons et al 1998b, 1999, Gillen et al 1999, Enkin et al 2000, and Cioppa et al 200016, Rees et al 1985;17, this study;18, Zhang et al 1996;19, Haeussler et al 1992;20, Butler et al 1988;21, Symons et al 1993;22, Wynne et al 1998;23, Smethurst et al 1999;24, Lewchuk et al 2000. Carboniferous -Early Permian remagnetizations from the northeastern Appalachians (Newfoundland, Nova Scotia, Quebec, and Maine) are from Irving and Strong (1984), Johnson and Van der Voo (1986), Pan et al (1993), Seguin (1986), Wellensiek et al (1990), and Lombard et al (1991). Remagnetizations from the central-southern Appalachians (from New York State to Alabama) are from Miller and Kent (1988 and references therein), Stamatakos et al (1996 and references therein), and Hodych et al (1985).…”