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mascon
mascon Abbreviation for mass concentration. There are about ten large-scale positive gravity anomalies on the Moon, associated with the large circular maria (see MARE). The basalt filling the multi-ringed impact basins only partly accounts for the excess mascons per unit area, and central subsurface uplift of denser mantle material into the feldspathic lunar highland crust during the impact is required to provide the observed values of up to +2.2 × 10−3 m/s2 (+220 mgal) observed in the Mare Imbrium.
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AILSA ALLABY and MICHAEL ALLABY. "mascon." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "mascon." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-mascon.html AILSA ALLABY and MICHAEL ALLABY. "mascon." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-mascon.html |
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mascon
mascon A region of a planetary body that is either made of, or underlain by, denser‐than‐average material, as evidenced by an increased gravitational pull above it. The word is a contraction of mass concentration. Mascons first revealed their presence by the effects they had on the motion of spacecraft orbiting the Moon; they lie beneath many of the major lunar mare basins. Mars also has mascons associated with its impact basins.
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"mascon." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "mascon." A Dictionary of Astronomy. 1997. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O80-mascon.html "mascon." A Dictionary of Astronomy. 1997. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-mascon.html |
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mascon
mascon see moon . |
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"mascon." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "mascon." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-X-mascon.html "mascon." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-mascon.html |
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mascon
mascon (ˈmæskɒn) Astronomy mass concentration
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FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "mascon." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "mascon." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O25-mascon.html FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "mascon." The Oxford Dictionary of Abbreviations. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O25-mascon.html |
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