A geotectonic paradox: Has the Earth expanded?
Item
Title (Dublin Core)
en-US
A geotectonic paradox: Has the Earth expanded?
Description (Dublin Core)
en-US
From the recognition of common apparent polar-wander (CAPW) paths for Africa, Australia, Greenland, and North America in the early Proterozoic, we have deduced that these continents today occupy approximately the same relative locations on the globe as they did in the early Proterozoic. However, there is abundant geochemical, geological, geochronological and tectonic evidence for landmasses having been much less dispersed in the Precambrian than they are now. It is shown in this paper that an Earth of about half the present radius accomodates the present continents in such a manner that this paradox can be satisfactorily resolved, and we propose that between about 1,600 Myr and 1,000 Myr ago, the Earth expanded to approximately its present dimensions. A change from Proterozoic to Phanerozoic tectonic styles is supported.
ARK: https://n2t.net/ark:/88439/y034403
Permalink: https://geophysicsjournal.com/article/34
ARK: https://n2t.net/ark:/88439/y034403
Permalink: https://geophysicsjournal.com/article/34
Creator (Dublin Core)
Schmidt, P.W.
Embleton, B.J.J.
Subject (Dublin Core)
en-US
Tectonics
en-US
Earth expansion
en-US
Paleomagnetism
en-US
Data
en-US
Geodynamics
en-US
Solid Earth
en-US
Space
en-US
Theory
Publisher (Dublin Core)
en-US
Journal of Geophysics
Date (Dublin Core)
1981-01-22
Type (Dublin Core)
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
en-US
Peer-reviewed Article
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://journal.geophysicsjournal.com/JofG/article/view/34
Source (Dublin Core)
en-US
Journal of Geophysics; Vol 49 No 1 (1981): Journal of Geophysics; 20-25
2643-2986
2643-9271
Language (Dublin Core)
eng
Relation (Dublin Core)
https://journal.geophysicsjournal.com/JofG/article/view/34/17