Earth geography from 400 to 250 Ma: a palaeomagnetic, faunal and facies review From: Journal of the Geological Society | Date: July 1, 2004| Author: Torsvik, Trond H; Cocks, L Robin M | Copyright Geological Society Publishing House Jul 2004. Provided by ProQuest LLC.Copyright information

Abstract:

Palaeomagnetic and faunal data have been re-evaluated on a global basis for the period from 400 Ma (early mid-Devonian) to 250 Ma (latest Permian). The boundaries of the major terranes are considered and defined. Six new palaeogeographical maps at 30 Ma intervals, which ensure kinematic continuity, are presented for this period. The palaeomagnetic data are very useful for positioning terranes for the present-day North Atlantic area, of variable value for China and Tarim, and ...

Related newspaper, magazine, and journal articles from HighBeam Research

	Earth geography from 500 to 400 million years ago: A faunal and palaeomagnetic review Journal of the Geological Society ; ... presented with appropriate confidence (or lack of it) on six maps at 20 Ma intervals. The palaeomagnetic results are the most reliable ... distribution of the faunas in the later parts of the interval. The new maps were generated initially from palaeomagnetic data when available ...
	A palaeomagnetic and palaeobiogeographical perspective on latest Neoproterozoic and early Cambrian tectonic events Journal of the Geological Society ; Abstract: During the latest Neoproterozoic to Mid-Cambrian time (580-505 Ma ago), the Earth underwent significant changes in palaeogeography that included rifting of a possible supercontinent and the near simultaneous formation of a second, slightly smaller supercontinent. It is against this
	Palaeomagnetism and ^sup 40^Ar/^sup 39^Ar age determinations of the Ediacaran traps from the southwestern margin of the East European Craton, Ukraine: relevance to the Rodinia break-up Journal of the Geological Society ; Abstract: A palaeomagnetic study and age determinations have been performed on Ediacaran basalts from the northwestern Ukraine. Whole-rock ^sup 40^Ar/^sup 39^Ar age determination revealed plateau ages at 590-560 Ma and 393 Ma, the latter probably reflecting a resetting of the radiometric system.
	Was Baltica right-way-up or upside-down in the Neoproterozoic? Journal of the Geological Society ; Abstract: Baltica is a progeny of Rodinia, born from the breakup of the supercontinent in the Neoproterozoic. Within Rodinia, Baltica is generally placed adjacent to NE Laurentia but in a variety of configurations, which vary by up to 3000 km along the strike of the Laurentian margin and include
	150 million years of climatic stability: evidence from the Atacama Desert, northern Chile Journal of the Geological Society ; The sedimentary succession in the Atacama Desert records deposition under an arid to semiarid climate from the late Jurassic (150 Ma) to the present day. Palaeomagnetic data indicate no significant latitudinal movement of this area since the late Jurassic. The present-day location of the Atacama

See all results.