Middle Ordovician chondrite in fossiliferous limestone from Brunflo, central Sweden

Details Middle Ordovician chondrite in fossiliferous limestone from Brunflo, central Sweden Middle Ordovician chondrite in fossiliferous limestone from Brunflo, central Sweden

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.289..285t&link_type=abstract

Nature, vol. 289, Jan. 22, 1981, p. 285, 286.

Computer Science

11

Chondrites, Fossils, Limestone, Meteoritic Composition, Sweden, Barite, Calcite, Chromites, Cobalt, Cosmic Rays, Iron, Magnesium

Scientific paper

The first discovery of a fossil chondrite in Ordovician limestone (at Brunflo, Sweden) is reported. The meteorite was detected as a clast about 10 cm across of a metamorphic ultramafic rock in a slab of Ordovician limestone from the continental side of the Brunflo area, which dates from the Aseri Stage of the Middle Ordovician (approximately 463 million years ago). Some of the fine structural details of the chondrules are well preserved, although the chemical composition and mineralogy have changed dramatically, with chromite being the only mineral preserved.

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