A Caltech Library Service

Measurements of the Cretaceous Paleolatitude of Vancouver Island: Consistent with the Baja-British Columbia Hypothesis

Ward, Peter D. and Hurtado, José M. and Kirschvink, Joseph L. and Verosub, Kenneth L. (1997) Measurements of the Cretaceous Paleolatitude of Vancouver Island: Consistent with the Baja-British Columbia Hypothesis. Science, 277 (5332). pp. 1642-1645. ISSN 0036-8075. doi:10.1126/science.277.5332.1642.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


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.

Item Type:Article
Related URLs:
Kirschvink, Joseph L.0000-0001-9486-6689
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.
Funding AgencyGrant Number
Issue or Number:5332
Record Number:CaltechAUTHORS:20130129-101118260
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36641
Deposited By: Tony Diaz
Deposited On:30 Jan 2013 16:26
Last Modified:09 Nov 2021 23:23

Repository Staff Only: item control page