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Reference 969

Parkhill, Thomas A (1976)

AuthorsParkhill, Thomas A
Year1976
GeoRef1989-040865
KeywordsBlack Hills; Cenozoic; igneous rocks; petrology; Richmond HillComplex; South Dakota; stratigraphy; Tertiary; United States

8 samples from this reference

SampleRock nameMajorTraceIsotope
132Rhyolite yesyes
63BRhyolite yesyes
3Trachyte yesyes
43Trachyte yesyes
82Trachyte yesyes
5Trachyte yesyes
38Trachyte yesyes
131Trachyte yesyes