Published September 12, 1997
| public
Journal Article
Measurements of the Cretaceous Paleolatitude of Vancouver Island: Consistent with the Baja-British Columbia Hypothesis
Chicago
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Abstract
A previously unsampled outcrop of gently dipping or flat-lying Upper Cretaceous sedimentary strata in the Vancouver Island region, which contains unaltered aragonitic mollusk fossils, yielded a stable remanent magnetization that is biostratigraphically consistent with Cretaceous magnetochrons 33R, 33N, and 32R. These results, characterized by shallow inclinations, indicate an Upper Cretaceous paleolatitude of about 25 ± 3 degrees north, which is equivalent to that of modern-day Baja California. These findings are consistent with the Baja–British Columbia hypothesis, which puts the Insular Superterrane well south of the Oregon-California border in the Late Cretaceous.
Additional Information
© 1997 American Association for the Advancement of Science. Received 2 May 1997; accepted 25 July 1997. We thank D.S. Cowan and R. T. Merril or reviewing the manuscript; J. Haggart, R. Enkin, and L. T. Silver for advice; L. Saul of the Los Angeles County Museum for guidance about California stratigraphy; and R. Lohman for assistance in running samples. Supported by NSF grants EAR-9372157 and EAR-9418283.Additional details
- Eprint ID
- 36641
- Resolver ID
- CaltechAUTHORS:20130129-101118260
- NSF
- EAR-9372157
- NSF
- EAR-9418283
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2013-01-30Created from EPrint's datestamp field
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2021-11-09Created from EPrint's last_modified field