Two pyroxene olivine basalt, Puerto Rico geologic unit Kpob

Two pyroxene olivine basalt

Porphyritic augite hypersthene-olivine basalt. Exposed in the Yauco, Sabana Grande, Guanica, Parguera, San German, Cabo Rojo, Mayaguez, Rosario, and Maricao quadrangles

Label	Kpob
Geologic age	lower ? Maestrichtian-Campanian
Quadrangles	Cabo Rojo, Guánica, Maricao, Mayagüez, Parguera, Rosario, Sabana Grande, San Germán, Yauco
Municipios	Cabo Rojo, Guanica, Guayanilla, Lajas, Maricao, Mayaguez, Sabana Grande, San German, Yauco

Bibliographic references

Curet, A.F., 1986, Geologic map of the Mayagüez and Rosario quadrangles, Puerto Rico: U.S. Geological Survey Miscellaneous Investigations Series Map I-1657, scale 1:20,000.McIntyre, D.H., 1975, Geologic map of the Maricao quadrangle, western Puerto Rico: U.S. Geological Survey Miscellaneous Investigations Series Map I-918, scale 1:20,000.Monroe, W.H., 1972, Geology of the middle Tertiary rocks in the Ponce-Guanica area--a progress report: U.S. Geological Survey Open-File Report 72-258, Washington, D.C., scale 1:20,000.Volckmann, R.P., 1984a, Geologic map of the Cabo Rojo and Parguera quadrangles, southwest Puerto Rico: U.S. Geological Survey Miscellaneous Investigations Series Map I-1557, scale 1:20,000.Volckmann, R.P., 1984b, Geologic map of the Puerto Real quadrangle, southwest Puerto Rico: U.S. Geological Survey Miscellaneous Investigations Series Map I-1559, scale 1:20,000.

Krushensky and Monroe, 1979