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HARTMAN MULTIMEDIA
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Lompoc Diatomite Sites 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
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