Extremely acid Permian lakes and ground waters in North America
Article Abstract:
Halites from subsurface cores of the Opeche Shale of North Dakota and the Nippewalla Group of Kansas have been sampled. The rocks were previously shown to have been deposited in continental saline pan systems, and fluid inclusions in the bedded halites are believed to be trapped remnants of Permian lake waters and ground waters. The study has revealed ancient extremely acid lake waters and ground waters.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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Identification of comet Hyakutake's extremely long ion tail from magnetic field signatures
Article Abstract:
A crossing by a spacecraft of the plasma tail of comet Hyakutake at a distance of more than 550 million km indicates that, at this distance, the comet's tail was a structured entity at least 7 million km in diameter. It is possible that the plasma tails of comets may persist as discrete entities for many astronomical units.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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Statistical signatures of photon localization
Article Abstract:
It has been possible to identify photon localization in both weakly and strongly scattering quasi-one-dimensional dielectric samples. Photon localization also occurs in periodic metallic wire meshes containing metallic scatterers.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2000
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