The noble gases in five ordinary chondrites from Grove Mountains in Antarctica

2020 ◽  
Vol 192 ◽  
pp. 105045
Author(s):  
Ying Wang ◽  
Huaiyu He ◽  
Ingo Leya ◽  
P.M. Ranjith ◽  
Fei Su ◽  
...  
Keyword(s):  
Noble Gases ◽  
Ordinary Chondrites ◽  
Grove Mountains

Classification of 24 New Ordinary Chondrites from the Grove Mountains, Antarctica

2004 ◽  
Vol 78 (5) ◽  
pp. 1052-1059 ◽  
Author(s):  
LU Ren ◽  
MIAO Bingkui ◽  
WANG Guiqing ◽  
DAI Deqiu ◽  
LIN Yangting ◽  
...  
Keyword(s):  
Ordinary Chondrites ◽  
Grove Mountains

Trapped noble gases in unequilibrated ordinary chondrites

1990 ◽  
Vol 54 (10) ◽  
pp. 2869-2882 ◽  
Author(s):  
N. Schelhaas ◽  
U. Ott ◽  
F. Begemann
Keyword(s):  
Noble Gases ◽  
Ordinary Chondrites

The Mineral Chemistry and Classification of New Ordinary Chondrites Collected in Antarctica

2012 ◽  
Vol 621 ◽  
pp. 125-129
Author(s):  
Bao Hua Wang ◽  
Shi Jie Li ◽  
Bing Kui Miao
Keyword(s):  
High Pressure ◽  
Mineral Chemistry ◽  
Shock Metamorphism ◽  
Ordinary Chondrites ◽  
Similar Composition ◽  
Severe Shock ◽  
Grove Mountains

Petrography and mineral chemistry of ninety-eight ordinary chondrites from Grove Mountains, Antarctica, have been studied, in order to assign their chemical-petrographic types. The chemical-petrographic types of these meteorites are presented below: 36 H-groups (21 H4, 9 H5, 6 H6) and 62 L-groups (25 L5, 37 L6). The compositions of olivines and low-Ca pyroxenes in the all these ordinary chondrites have similar composition, respectively, reflecting some degree thermodynamics equilibration in them. The weathering degrees of all the ordinary chondrites, consisting of predominant weathering degrees of W1, suggest lightly weathered among them. More than 30% meteorites experienced severe shock metamorphism, as indicated by the presences of shock-induced melt veins and pockets. These heavily shocked meteorites provide us with natural samples for study of high-pressure polymorphs of minerals.

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