GRD0170S0
W78-287
Felsic Extrusive
Cenozoic › Neogene › Miocene › Late Miocene
5.3
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11.6
0
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Ash bed dated to approximately 8.6 ma by U.S.G.S. Fission track.
Samples W78-285 through W78-293, see Winterer 1978 notebook page 124.
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California
Lompoc Quarry
Latitude: 34.6°
Longitude: -120.45°
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