Mining cosmic dust from the blue ice lakes of Greenland

Details Mining cosmic dust from the blue ice lakes of Greenland Mining cosmic dust from the blue ice lakes of Greenland

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgrs...90...51m&link_type=abstract

In Lunar and Planetary Inst. 16th Lunar and Planetary Sci. Conf. p 51-53 (SEE N85-26548 15-91)

Physics

Arctic Regions, Asteroids, Comets, Cosmic Dust, Greenland, Ice Floes, Mining, Excavation, Meteoroid Showers, Meteoroids, Space Debris

Scientific paper

Extraterrestrial material, most of which invisible settles to Earth's surface as dust particles smaller than a millimeter in size were investigated. Particles of 1/10 millimeter size fall at a rate of one/sq m/yr collection of extraterrestrial dust is important because the recovered cosmic dust particles can provide important information about comets. Comets are the most important source of dust in the solar system and they are probably the major source of extraterrestrial dust that is collectable at the Earth's surface. A new collection site for cosmic dust, in an environment where degradation by weathering is minimal is reported. It is found that the blue ice lakes on the Greenland ice cap provide an ideal location for collection of extraterrestrial dust particles larger than 0.1 mm in size. It is found that the lakes contain large amounts of cosmic dust which is much better preserved than similar particles recovered from the ocean floor.

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