Mathematics – Logic
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgrs...90...47l&link_type=abstract
In Lunar and Planetary Inst. 16th Lunar and Planetary Sci. Conf. p 47-50 (SEE N85-26548 15-91)
Mathematics
Logic
Chondrule, Geochronology, Geomorphology, Planetary Evolution, Topex, Earth Crust, Enstatite, Paleontology, Solar Corona
Scientific paper
The evolution of the Earth and the Earth crust was studied. Two layers, that contain abundant unusual spherical particles which closely resemble chondroules were identified. Chondrules occur on small quantities in lunar soil, however, they are rare in terrestrial settings. Some chondrules in meteorites were formed on the surfaces of planet sized bodies during impact events. Similar chondrule like objects are extremely rare in the younger geologic record and these abundances are unknown in ancient deposits, except in meteorites. It is suggested that a part of the Earth's terminal bombardment history, and conditions favoring chondrule formation existed on the early Earth.
Byerly Gary R.
Lowe Donald R.
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