The Humboldt Channel: Early Pleistocene extensional
graben through eastern Venezuela and Trinidad. Macsotay, O. 2005
Transactions of the 16th Caribbean Geological
Conference, Barbados. Caribbean Journal of Earth Science, 39 (2005), 83-91.
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Since Alexander Von
Humboldt (1814-1824) predicted the future union of the gulfs of Cariaco and
Paria, attention was drawn to an extensive east-west oriented valley separating
the coastal ranges of the north, from the Serrania del Interior Oriental in the
south. Liddle (1946) mapped the Araya-Paria coastal ranges as metamorphic
rocks, and the Serrania to the south as sedimentary, mostly Cretaceous and Paleogene.
This elongated depression was an area of frequent earthquakes, with hundreds of
hydrothermal water springs, and occasional oil seeps mentioned by Urbani, 1989
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