Meteorite impacts to gold and nickel deposits
نویسندگان
چکیده
منابع مشابه
Meteorite Impacts, Craters and Multi-ring Basins
One of the principal new results of space exploration has been the demonstration that impact cratering was endemic throughout the solar system. Whether one is contemplating the cratered face of Mercury, the traces of the bombardment surviving on Venus or the Earth, the heavily cratered highland surface of the Moon or the southern hemisphere of Mars, the battered potato-like surfaces of Phobos a...
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Eucalyptus trees may translocate Au from mineral deposits and support the use of vegetation (biogeochemical) sampling in mineral exploration, particularly where thick sediments dominate. However, biogeochemistry has not been routinely adopted partly because biotic mechanisms of Au migration are poorly understood. For example, although Au has been previously measured in plant samples, there has ...
متن کاملSediment-hosted, Disseminated Gold Deposits Related to Alkalic
This paper describes occurrences of low grade, disseminated gold in sedimentary rocks and alkalic intrusions in the vicinity of the Howell Creek Structure (HCS; Price,1964) of southeastern British Columbia. The study is part of the B.C. Geological Surveys ongoing Sediment-hosted Gold Project, which is examining occurrences throughout the province which may have similarities to gold deposits in...
متن کاملNickel release from white gold.
Nickel is still the most frequent cause of contact allergy, despite the EU regulation limiting nickel release from consumer items intended for prolonged contact with the skin, such as jewellery, buttons, and watches. It is obvious that the current restriction is insufficient (1). It has been shown that nickel is deposited onto the skin by short and repetitive contact in amounts sufficient to ca...
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ژورنال
عنوان ژورنال: Preview
سال: 2013
ISSN: 1443-2471,1836-084X
DOI: 10.1071/pvv2013n166p35