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The oldest rocks in Venezuela formed during the Precambrian and occupy the Guiana shield in the southern tier of the country near Guyana and Brazil, east of the El BaUl swell. In the western Guiana Shield, within the Amazonas Territory, Precambrian Roraima Formation zircon grains have been dated with uranium-lead dating and rubidium-strontium ...
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The Venezuelan Andes (Spanish: Andes Venezolanos) also simply known as the Andes (Spanish: Los Andes) in Venezuela, are a mountain system that form the northernmost extension of the Andes. They are fully identified, both by their geological origin as by the components of the relief, the constituent rocks and the geological structure.
Geologia de Venezuela y de sus cuencas petroliferas. 1:162-166; E. von der Osten. 1957. A fauna from the lower Cretaceous Barranquin Formation of Venezuela. Journal of Paleontology 31(3):571-590; O. Renz. 1982. The Cretaceous ammonites of Venezuela 1-132; J. W. Wells. 1944. Cretaceous, tertiary, and recent corals, a sponge, and an alga from ...
The Cariaco Basin is an east-west trending pull-apart basin [1] located on the continental shelf off the eastern coast of Venezuela.It is a deep depression composed of two sub-basins, the eastern basin and the western basin, each of about 1,400 metres (4,600 ft) depth, separated by a saddle of approximately 900 metres (3,000 ft) water-depth.
The heavy rain that can be found throughout Venezuela has a large impact on the geology. Erosion is a common trend in Venezuela especially due to the extreme wet seasons. [ 33 ] The geology of this mountain range especially in Venezuela has barely been studied even by oil companies. [ 29 ]
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Decapod Crustaceans from the Lower Miocene of North-Western Venezuela (Cerro La Cruz, Castillo Formation). Special Papers in Palaeontology 71:7-22; M. R. Sánchez Villagra, R. J. Asher, A. D. Rincón, A. A. Carlini, P. Meylan and R. W. Purdy. 2004. New faunal reports for the Cerro La Cruz locality (lower Miocene), north-western Venezuela.