Palaeomagnetism of South American Rocks and the Dynamic Processes Related with the Fragmentation of Western Gondwana
- M.W. McEIhinny and
- D.A. Valencio
Published Online: 15 MAR 2013
Copyright 1981 American Geophysical Union
Paleoreconstruction of the Continents
How to Cite
Vilas, J. F. A. (1981) Palaeomagnetism of South American Rocks and the Dynamic Processes Related with the Fragmentation of Western Gondwana, in Paleoreconstruction of the Continents (eds M.W. McEIhinny and D.A. Valencio), American Geophysical Union, Washington, D. C.. doi: 10.1029/GD002p0106
- Published Online: 15 MAR 2013
- Published Print: 1 JAN 1981
Print ISBN: 9780875905112
Online ISBN: 9781118670217
- Geodynamic processes;
- South american rocks
The South American reliable palaeomagnetic data presented during the last decade are reviewed.
These data have contributed to define the different episodes of the geodynamic evolution of Western Gondwana; i) they suggest that Western Gondwana was a unit in Late Precambrian-Cambrian time; ii) they indicate that Western Gondwana moved away from the South pole in Late Carboniferous-Early Permian time; iii) they suggest that Western Gondwana had a quasi static period from late Early Permian to Middle Jurassic; and iv) they indicate that Western Gondwana had a rapid recurrent apparent polar shift in Early Cretaceous time and that its fragmentation occurred in late Early Cretaceous time.
The palaeomagnetic and sea-floor spreading data are used to define the movements associated with the fragmentation of Western Gondwana and the origin of the South Atlantic.