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BIBTEX RIS

CONTRIBUIÇÃO A DATAÇÃO DA FORMAÇÃO ALTER DO CHÃO, BACIA DO AMAZONAS

1975; Sociedade Brasileira de Geologia; Volume: 5; Issue: 2 Linguagem: Inglês

10.25249/0375-7536.19757884

ISSN

2177-4382

Autores

DAEMON ROBERTO F.,

Tópico(s)

Paleontology and Stratigraphy of Fossils

Resumo

Similarities between the microflora of the Alter do Chão Formation, Amazonas Basin and the Barreirinhas Basin allow the comparison of the taxonomic entities of these basins. Nine palynomorphs, from wells NO-1-AM (Nova Olinda), and AC-1-PA (Alter do Chão), were selected and compared with recent papers of Lima (1971) and Herngreen (l973), from the Barreirinhas Basin. The conclusion arrived was that the Alter do Chão Formation sedimentation, in the examined area, developed in the Cretaceous, Middle Albian, Cenomanian and Turonian.

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