Rb-Sr provenance ages from weathered and stream transported quartz grains from the Harney Peak Granite, Black Hills, South Dakota

Louise, S.P.; Hannes, K.B.; David, H.K.

Geochimica et Cosmochimica Acta 43(1): 137-146

1979


ISSN/ISBN: 0016-7037
DOI: 10.1016/0016-7037(79)90053-x
Accession: 019852891

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Abstract
Weathered quartz grus and stream transported quartz of the Harney Peak Granite, Black Hills, South Dakota, contain low concentrations of Rb (generally 0.3–6.8 ppm) and Sr (0.2–2.0 ppm) and variable Sr isotopic ratios (0.759–1.070).