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COMPENDIO_DE_GEOLOGIA_Bolivia

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REVISTA TECNICA <strong>DE</strong> YPFB VOL. 18 (1-2) JUNIO 2000<br />

la Cordillera hercínica resultante, fueron ampliamante discutidos<br />

por Megard et al. (1973) en una extensa serie de publicaciones. Los<br />

movimientos compresivos, producidos a nivel continental,<br />

ocasionaron el plegamiento de las rocas previas y la formación de<br />

un orógeno hercínico desde la costa pacífica de sudamérica,<br />

pasando por las sierras australes de Buenos Aires, hasta Sudáfrica.<br />

La edad aproximada del metamorfismo de esta deformación en la<br />

Cordillera Oriental Sur, fue medida por Tawackoli et al. (1996)<br />

entre 374 a 317 millones de años.<br />

La cuenca del Ciclo Subandino se desarrolló principalmente en el<br />

borde oriental de la cordillera recién formada, inicialmente con<br />

cañones submarinos al este (grupos Macharetí-Mandiyutí), y<br />

posterior-mente, en el oeste, con facies de plataformas marinas<br />

carbonatadas (Grupo Titicaca).<br />

resulting hercynic cordillere, were discussed largely by Megard et<br />

al. (1973) in an extensive series of publications. The compressive<br />

movements, produced at the continental level, caused the folding of<br />

the previous rocks and the formation of a hercynic orogen from the<br />

Pacific coast in South America, passing by the southern ranges of<br />

Buenos Aires, up to South Africa. The approximate age of this<br />

deformation’s metamorphism in the South of the Eastern Cordillera<br />

was measured by Tawackoli et al. (1996) to be between 374 and<br />

317 millions of years.<br />

The Sub Andean Cycle basin developed mainly on the eastern<br />

border of the recently formed range, initially, with submarine<br />

canyons to the East (Macharetí-Mandiyutí groups), and subsequently<br />

with carbonated marine platform facies to the West<br />

(Titicaca Group).<br />

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