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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 16 (1932)

Issue: 8. (August)

First Page: 819

Last Page: 824

Title: Oil Seepages and Oil Production Associated with Volcanic Plugs in Mendoza Province, Argentina

Author(s): F. H. Lahee (2)


In the eastern foothills belt of the Andes Mountains, in western Mendoza Province, Argentina, a series of lower Tertiary and older strata has been folded, faulted, and locally intruded by igneous plugs. Seepages of asphaltic oil, and dikes or veins of rafaelite, are found associated with the faults and intrusive masses, in such a way as to indicate that these petroleum substances originated from a shale of Upper Jurassic age, or from limestone of Lower Cretaceous age, or from both. Near one of the igneous plugs, Cerro Alquitran, a considerable quantity of heavy oil has been obtained by drilling.

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