Paleomagnetic Results from the Perijá Mountains, Venezuela: An Example of Vertical Axis Rotation
Wulf A. Gose, Adrián Perarnau, Jesús Castillo, 2003. "Paleomagnetic Results from the Perijá Mountains, Venezuela: An Example of Vertical Axis Rotation", The Circum-Gulf of Mexico and the Caribbean: Hydrocarbon Habitats, Basin Formation and Plate Tectonics, Claudio Bartolini, Richard T. Buffler, Jon F. Blickwede
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Paleomagnetic analyses of 161 samples of Jurassic through Eocene age from 11 sites in the Venezuelan foothills of the Perijá Mountains yield a pole position at 44.1° N, 6.6° E with an error of A95 = 9.6°. These data indicate that the sampling sites underwent a 50° ± 12° clockwise rotation. The rotations are interpreted to be the result of Neogene compression, which caused the rotation of fault-bounded blocks. Model calculations suggest a shortening between 8 km and 20 km across the eastern portion of the Perijá Mountains.
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The Circum-Gulf of Mexico and the Caribbean: Hydrocarbon Habitats, Basin Formation and Plate Tectonics
The Circum-Gulf of Mexico and the Caribbean has long been one of the world's most important petroleum provinces, as well as one of the world's most geologically complex regions. These two characteristics have resulted in an extensive amount of ongoing research by both industry and academia. AAPG Memoir 79, The Circum-Gulf of Mexico and the Caribbean, is the first volume in more than a decade to document such a wide range of research on the geology of this vast area. Of the total 44 papers, roughly two-thirds pertain to the Gulf of Mexico, with an emphasis on the Mexican portion of the basin, and to the petroliferous areas of the southern Caribbean, including Colombia, Venezuela, Cuba, and Trinidad and Tobago. The remaining papers relate to the Antilles and Central America, as well as a series of papers that address region-wide topics such as plate tectonic evolution. A significant number of papers were contributed by authors from national oil companies and universities from within the region.