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Hornblende-plagioclase porphyry intrusives in the northeast quarter of the Ponce quadrangle, Puerto Rico

Open-File Report 71-176
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Publication type Report
Publication Subtype USGS Numbered Series
Title Hornblende-plagioclase porphyry intrusives in the northeast quarter of the Ponce quadrangle, Puerto Rico
Series title Open-File Report
Series number 71-176
DOI 10.3133/ofr71176
Edition -
Year Published 1971
Language ENGLISH
Publisher U.S. Geological Survey],
Description [2] leaves :col. ill., col. map ;27 cm.
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