In the Acre Basin, the Solimões Formation unconformably overlies the Ramon Formation, but this unconformity is probably not long-lived. The Solimões Formation is of Eocene to late Miocene age, with dominantly fine-grained, fluvio-lacustrine sediments. Only late Miocene sediments are exposed. The Solimões Formation in the Acre Basin was slightly deformed during the Mio-Pliocene Andean orogenesis. The Bata-Cruzeiro and the Moa-Jaquirana faults were reactivated at this time, causing uplift of the Serra do Divisor range on the Brazil-Peru border and re-routing major drainages of the region.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the c section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the c section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the Cenozoic section is about 2000 m.
The Acre Basin of westernmost Brazil is an extension of the Peruvian Ucayali and Madre de Dios foreland basins. Here, the maximum thickness of the c section is about 2000 m.
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