2 edition of Geochemistry, petrography, and volcanology of rhyolites of the Portage Lake volcanics, Keweenaw Peninsula, Michigan found in the catalog.
Geochemistry, petrography, and volcanology of rhyolites of the Portage Lake volcanics, Keweenaw Peninsula, Michigan
Suzanne W. Nicholson
This description of some rhyolites related to the Midcontinent rift summarizes previous work and presents new data within a newly revised tectonic framework for the rift.
Includes bibliographical references (p. 35-39).
|Statement||by Suzanne W. Nicholson.|
|Series||Contributions to the geology and mineral resources of the midcontinent rift system, U.S. Geological Survey bulletin -- 1970-B|
|LC Classifications||QE75 .B9 no. 1970 A-B, QE653.5 .B9 no. 1970 A-B|
|The Physical Object|
|Pagination||v, 57 p. :|
|Number of Pages||57|
|LC Control Number||91047744|
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