Vaalbara palaeomagnetism
Vaalbara is the name given to a proposed configuration of continental blocks - the Kaapvaal craton (southern Africa) and the Pilbara craton (north-western Australia) - thought to be the Earth's oldest supercraton assemblage. Its temporal history is poorly defined, but it has been suggested that...
Saved in:
Published in | Canadian journal of earth sciences Vol. 56; no. 9; pp. 912 - 916 |
---|---|
Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Ottawa
National Research Council of Canada
01.09.2019
NRC Research Press Canadian Science Publishing NRC Research Press |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Vaalbara is the name given to a proposed configuration of continental blocks - the Kaapvaal craton (southern Africa) and the Pilbara craton (north-western Australia) - thought to be the Earth's oldest supercraton assemblage. Its temporal history is poorly defined, but it has been suggested that it was stable for at least 400 million years, between 3.1 and 2.7 Ga. Here, we present an updated analysis that shows that the existence of a single supercraton between ∼2.9 and ∼2.7 Ga is inconsistent with the available palaeomagnetic data. |
---|---|
ISSN: | 0008-4077 1480-3313 |
DOI: | 10.1139/cjes-2018-0081 |