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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Preservation of miocene glacier ice in East Antarctica

Article Abstract:

Buried glacier ice that is 8.1 million years old has been discovered in Beacon valley, East Antarctica. There are two views about the Antarctic climate during Pliocene. One view holds that East Antarctica was largely free of glacier ice during Pliocene. The latest discovery is in support of the other view which maintains that a stable polar ice sheet developed by the middle Miocene which has persisted since then. Dating of the ice has been done by laser-fusion 40Ar/39Ar analysis of volcanic ash in the thin, overlying glacial till.

Author: Marchant, David R., Sugden, David E., Potter, Noel, Jr., Souchez, Roland A., Denton, George H., Swisher, Carl C., III, Tison, Jean-Louis
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
Research, Measurement, Antarctic regions, Ice sheets, Geological time, Geochronology

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Evidence for recent climate change on Mars from the identification of youthful near-surface ground ice

Article Abstract:

It has been possible to obtain observational evidence for a mid-latitude reservoir of near-surface water ice in the pore space of soils on Mars. This gives direct evidence for a ground ice cycle on Mars functioning on Milankovich timescales.

Author: Mustard, John F., Cooper, Christopher D., Rifkin, Moses K.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
Surface (Geology)

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Recent ice ages on Mars

Article Abstract:

Recent studies conducted on Mars, show dusty, water-ice-rich mantling deposit that are layered, metres thick and latitude dependent in both hemispheres. Evidence of these deposits formed during a geologically recent ice age is provided.

Author: Mustard, John F., Head, James W., Kreslavsky, Mikhail A., Milliken, Ralph E., Marchant, David R.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
Discovery and exploration, Glacial epoch, Ice age

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Subjects list: Mars (Planet)
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