Placers of cosmic dust in the blue ice lakes of Greenland

Details Placers of cosmic dust in the blue ice lakes of Greenland Placers of cosmic dust in the blue ice lakes of Greenland

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986sci...233..869m&link_type=abstract

Science (ISSN 0036-8075), vol. 233, Aug. 22, 1986, p. 869-872. Research supported by the Institut National d'Astronomie et de Ge

Astronomy and Astrophysics

Astronomy

59

Cosmic Dust, Greenland, Meteoritic Composition, Glass, Iron, Lakes, Planetary Composition, Silicon, Spheres

Scientific paper

A concentration process occurring in the melt zone of the Greenland ice cap has produced the richest known deposit of cosmic dust on the surface of the earth. Extraterrestrial particles collected from this region are well preserved and are collectable in large quantities. The collected particles are generally identical to cosmic spheres found on the ocean floor, but a pure glass type was discovered that has not been seen in deep-sea samples. Iron-rich spheres are conspicuously rare in the collected material.

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