Proterozoic microfossils from the sedimentary rocks of the Lappajärvi impact crater | Zendy

A. Uutela | Zendy

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Proterozoic microfossils from the sedimentary rocks of the Lappajärvi impact crater

Author(s) -

A. Uutela

Publication year - 1990

Publication title -

bulletin of the geological society of finland

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 24

eISSN - 1799-4632

pISSN - 0367-5211

DOI - 10.17741/bgsf/62.2.002

Subject(s) - geology , impact crater , proterozoic , sedimentary rock , paleontology , geochemistry , astrobiology , tectonics , physics

UUTELA, ANNELI, 1990: Proterozoic microfossils from the sedimentary rocks of the Lappajärvi impact crater. Bull. Geol. Soc. Finland 62, Part 2, 115—121. The Proterozoic microbiota of acritarchs is reported from the siltstone deposit of Lappajärvi. Diversity is low, with sphaeromorphs dominating the taxa, which also includes some coenobial and ovoidal specimens and a fragment of filament. The undisturbed structures and horizontal layering of the sedimentary rocks and the good state of preservation of the microfossils indicate that the siltstone occupies the marginal zone of the meteorite impact.

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