Did the Breakout of Laurentia Turn Gondwanaland Inside-Out?
@article{Hoffman1991DidTB, title={Did the Breakout of Laurentia Turn Gondwanaland Inside-Out?}, author={Paul F. Hoffman}, journal={Science}, year={1991}, volume={252}, pages={1409 - 1412} }
Comparative geology suggests that the continents adjacent to northern, western, southern, and eastern Laurentia in the Late Proterozoic were Siberia, Australia-Antarctica, southern Africa, and Amazonia-Baltica, respectively. Late Proterozoic fragmentation of the supercontinent centered on Laurentia would then have been followed by rapid fan-like collapse of the (present) southern continents and eventual consolidation of East and West Gondwanaland. In this scenario, a pole of rotation near the…
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References
SHOWING 1-10 OF 61 REFERENCES
Cambrian-Ordovician paleogeography of Baltica
- Geology
- 1991
Recent paleomagnetic data and existing paleontological evidence show that Baltica occupied temperate southern latitudes during Cambrian and Early Ordovician time, but was inverted with reference to…
Precambrian tectonic evolution of part of Gondwana, southwestern Australia
- Geology
- 1990
Southwestern Australia has a long dynamic Precambrian history of crustal fragmentation and aggregation by continental collision and accretion. This interpretation contrasts with the widely held…
Pacific margins of Laurentia and East Antarctica-Australia as a conjugate rift pair: Evidence and implications for an Eocambrian supercontinent
- Geology, Environmental Science
- 1991
Evidence supports the hypothesis that the Laurentian and East Antarctic-Australian cratons were continuous in the late Precambrian and that their Pacific margins formed as a conjugate rift pair. Both…
Model for the evolution of the Avalonian-Cadomian belt
- Geology
- 1989
The inception and termination of the ca. 670-550 Ma Avalonian-Cadomian orogenic cycle are interpreted in terms of the amalgamation and breakup of a late Precambrian supercontinent. Synorogenic,…
Southwest U.S.-East Antarctic (SWEAT) connection: A hypothesis
- Geology
- 1991
A hypothesis for a late Precambrian fit of western North America with the Australia-Antarctic shield region permits the extension of many features through Antarctica and into other parts of Gondwana.…
Isotope and geochemical constraints on Proterozoic crustal evolution in south-eastern Africa
- Geology
- 1989
Definition of the lapetus rift-drift transition in western Newfoundland
- Geology, Environmental Science
- 1987
The change from a sequence of terrestrial and marine clastic sedimentary and volcanic rocks that show rapid lateral variability of thickness and facies to an overlying, essentially sheetlike, mainly…
Proterozoic supercontinent, its latest Precambrian rifting, breakup, dispersal into smaller continents, and subsidence of their margins: Evidence from Asia
- Geology
- 1990
Several large cratons and numerous smaller blocks, all with Precambrian sialic crust, are seen clearly in the present-day structure of Asia. The outer parts of larger Precambrian terranes and entire…
The Appalachian-Ouachita rifted margin of southeastern North America
- Geology
- 1991
Promontories and embayments along the late Precambrian-early Paleozoic Appalachian-Ouachita continental margin of south-eastern North America are framed by a northeast-striking rift system offset by…