Investigation of Horizon Beta
- 27 December 1968
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 162 (3861) , 1473-1479
- https://doi.org/10.1126/science.162.3861.1473
Abstract
Horizon beta is a subbottom reflector in the North Atlantic deep ocean sediments that extends over a large portion of the North America basin. Cores from an outcrop of beta contained shallow-water Aptian-Albian sediments and deep-water Cenomanian sediments. A core near an outcrop of a deeper horizon, horizon B, contained shallow-water Lower Cretaceous (Barremian-Hauterivian) sediments. These cores can be interpreted to support extensive subsidence of the eastern portion of the basin in early Cretaceous time. It is equally likely that the shallow-water deposits are a result of sediments slumping into an already deep basin. A reconciliation of these interpretations depends upon the JOIDES project.Keywords
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