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Lompoc Diatomite Sites

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Though commercially exploited, the diatomites in this area are an important paleontological resource. Comparatively fast sedimentation, coupled with the presence of bony fish, resulted in the preservation of many Miocene fish as well as other pelagic vertebrates and marine invertebrates.  Preservation of the various animals is perfect, with fine bone articulations well preserved in many instances.  It is the type locality for many fossil marine fish.

The diatomaceous earth occurs in the upper part of the Monterey formation and the lower part of the Sisquoc, both of which date to the Upper Miocene. The deposit is several hundred meters thick, though much of it is mixed with clays and other impurities.

Integrity:  The area has been mined since the turn of the century.

Use:  Private.  The fossils are quarried and sold.

April 1976  

Santa Barbara
Inventory of California Natural Areas
Revision © 2005 Steven Louis Hartman

 

 

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Last modified: December 06, 2005