About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

Pacific Section of AAPG

Abstract


Aspects of the Geologic History of the California Continental Borderland, 1976
Pages 449-454

Late-Miocene Counterclockwise Rotation of the South Half of Santa Cruz Island

D. G. Howell

Abstract

The orientations of Mesozoic foliation and Cenozoic paleocurrent direction lineations on the south half of Santa Cruz Island are anomalous compared to similar data elsewhere from the southern California borderland. These data from Santa Cruz Island would better fit the regional geologic setting if they were palinspastically adjusted to account for 32° of counterclockwise rotation.

The inferred rotation may be a manifestation of right slip along the East Santa Cruz Basin fault in the area where the trace of the fault is nearly east-west. This hypothesis is potentially testable by making paleomagnetic-pole measurements of the rocks south of the fault that presumed to be rotated and those north of it that are not.


Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24