新疆罗布泊地区发现陨石富集区
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摘要
Xingdi,Argan,Loulan Yizhi和Lop Nur为我国新发现的4个陨石富集区,位于新疆塔克拉玛干沙漠以东的罗布泊地区.新富集区的地质、地形条件非常有利于陨石的野外搜寻工作,发现并确认13块均为平衡型普通球粒陨石.相比于其他典型沙漠陨石,罗布泊陨石风化更为强烈,这可能与较高空气湿度和蒸发盐曾经共存有关.与南极陨石相比,在国内沙漠富集区回收陨石具有诸多优势.新富集区的确立为国内沙漠陨石的回收工作提供了理论依据和前提保障,我国的沙漠陨石回收工作亟待进行.
Xingdi, Argan, Loulan Yizhi and Lop Nur are four dense meteorite collection areas newly found in China. They are located on the east of the Taklimakan Desert, Xinjiang. The geological and morphological setting of these areas are suitable to meteorites collection and 13 equilibrated ordinary chondrites were first identified. Compared to other typical desert meteorites, these meteorites went through more intense weathering, which may be result of the pre-coexisting high air humidity and evaporite. Collecting meteorites in deserts have several advantages over in Antarctic, and these dense meteorite collection areas provide possibility for mass collection of meteorites in desert of China.
Xingdi, Argan, Loulan Yizhi and Lop Nur are four dense meteorite collection areas newly found in China. They are located on the east of the Taklimakan Desert, Xinjiang. The geological and morphological setting of these areas are suitable to meteorites collection and 13 equilibrated ordinary chondrites were first identified. Compared to other typical desert meteorites, these meteorites went through more intense weathering, which may be result of the pre-coexisting high air humidity and evaporite. Collecting meteorites in deserts have several advantages over in Antarctic, and these dense meteorite collection areas provide possibility for mass collection of meteorites in desert of China.
引文
1 Scott E R.Meteorites:An overview.Elements,2011,7:47–48
2 林杨挺,王道德,欧阳自远.中国南极陨石研究新进展.极地研究,2008,20:81–94
3 李浩.罗布泊盐湖卤水硫酸钾矿床特征及其化学工艺应用研究.博士学位论文.北京:中国矿业大学,2011.21–24
4 王富葆,马春梅,夏训诚,等.罗布泊地区自然环境演变及其对全球变化的响应.第四纪研究,2008,28:150–153
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6 闫顺,穆桂金,许英勤,等.新疆罗布泊地区第四纪环境演变.地理学报,1998,53:46–54
7 罗超,彭子成,杨东,等.新疆罗布泊地区的环境演化.自然杂志,2006,28:37–41
8 谢连文.罗布泊现代盐湖沉积与近两千年气候变化遥感研究.博士学位论文.成都:成都理工大学,2004.14–25
9 李双成.若羌县志.乌鲁木齐:新疆大学出版社,1992.1–455
10 Gattacceca J,Valenzuela M,Uehara M,et al.The densest meteorite collection area in hot deserts:The San Juan meteorite field(Atacama Desert,Chile).Meteorit Planet Sci,2011,46:1276–1287
11 Scott E,Krot A N.Chondrites and their components.In:Holland H D,Turekian K K,eds.Treatise on Geochemistry.Oxford:Pergamon,2003.143–200
12 Harvey R P,Cassidy W A.A statistical comparison of Antarctic finds and modern falls:Mass frequency distributions and relative abundance by type.Meteoritics,1989,24:9–14
13 王英,徐伟彪,王鹤年,等.南极格罗夫山普通球粒陨石的矿物岩石学特征.极地研究,2008,20:129–140
14 Stffler D,Keil K,Edward R S.Shock metamorphism of ordinary chondrites.Geochim Cosmochim Acta,1991,55:3845–3867
15 Velbel M A,Long D T,Gooding J L.Terrestrial weathering of Antarctic stone meteorites:Formation of Mg-carbonates on ordinary chondrites.Geochim Cosmochim Acta,1991,55:67–76
16 Velbel M A.The distribution and significance of evaporitic weathering products on Antarctic meteorites.Meteoritics,1988,23:151–159
17 Crozaz G,Floss C,Wadhwa M.Chemical alteration and REE mobilization in meteorites from hot and cold deserts.Geochim Cosmochim Acta,2003,67:4727–4741
18 Floss C,Crozaz G.Ce anomalies in the LEW85300 eucrite:Evidence for REE mobilization during Antarctic weathering.Earth Planet Sci Lett,1991,107:13–24
19 Bland P A,Sexton A S,Jull A,et al.Climate and rock weathering:A study of terrestrial age dated ordinary chondritic meteorites from hot desert regions.Geochim Cosmochim Acta,1998,62:3169–3184
20 Goudie A S,Wright E,Viles H A.The roles of salt(sodium nitrate)and fog in weathering:A laboratory simulation of conditions in the northern Atacama Desert,Chile.Catena,2002,48:255–266
21 Goudie A S,Parker A G.Experimental simulation of rapid rock block disintegration by sodium chloride in a foggy coastal desert.J Arid Environ,1998,40:347–355
22 王道德,林杨挺,戴诚达,等.南极陨石与沙漠陨石的对比研究.极地研究,1999,11:45–58
23 刘小汉,琚宜太.格罗夫山:我国新发现的一个陨石富集区.极地研究,2002,14:243–247
2 林杨挺,王道德,欧阳自远.中国南极陨石研究新进展.极地研究,2008,20:81–94
3 李浩.罗布泊盐湖卤水硫酸钾矿床特征及其化学工艺应用研究.博士学位论文.北京:中国矿业大学,2011.21–24
4 王富葆,马春梅,夏训诚,等.罗布泊地区自然环境演变及其对全球变化的响应.第四纪研究,2008,28:150–153
5 王宁,刘卫国,常宏,等.中更新世以来新疆罗布泊地区气候演化过程.海洋地质与第四纪地质,2009,29:131–137
6 闫顺,穆桂金,许英勤,等.新疆罗布泊地区第四纪环境演变.地理学报,1998,53:46–54
7 罗超,彭子成,杨东,等.新疆罗布泊地区的环境演化.自然杂志,2006,28:37–41
8 谢连文.罗布泊现代盐湖沉积与近两千年气候变化遥感研究.博士学位论文.成都:成都理工大学,2004.14–25
9 李双成.若羌县志.乌鲁木齐:新疆大学出版社,1992.1–455
10 Gattacceca J,Valenzuela M,Uehara M,et al.The densest meteorite collection area in hot deserts:The San Juan meteorite field(Atacama Desert,Chile).Meteorit Planet Sci,2011,46:1276–1287
11 Scott E,Krot A N.Chondrites and their components.In:Holland H D,Turekian K K,eds.Treatise on Geochemistry.Oxford:Pergamon,2003.143–200
12 Harvey R P,Cassidy W A.A statistical comparison of Antarctic finds and modern falls:Mass frequency distributions and relative abundance by type.Meteoritics,1989,24:9–14
13 王英,徐伟彪,王鹤年,等.南极格罗夫山普通球粒陨石的矿物岩石学特征.极地研究,2008,20:129–140
14 Stffler D,Keil K,Edward R S.Shock metamorphism of ordinary chondrites.Geochim Cosmochim Acta,1991,55:3845–3867
15 Velbel M A,Long D T,Gooding J L.Terrestrial weathering of Antarctic stone meteorites:Formation of Mg-carbonates on ordinary chondrites.Geochim Cosmochim Acta,1991,55:67–76
16 Velbel M A.The distribution and significance of evaporitic weathering products on Antarctic meteorites.Meteoritics,1988,23:151–159
17 Crozaz G,Floss C,Wadhwa M.Chemical alteration and REE mobilization in meteorites from hot and cold deserts.Geochim Cosmochim Acta,2003,67:4727–4741
18 Floss C,Crozaz G.Ce anomalies in the LEW85300 eucrite:Evidence for REE mobilization during Antarctic weathering.Earth Planet Sci Lett,1991,107:13–24
19 Bland P A,Sexton A S,Jull A,et al.Climate and rock weathering:A study of terrestrial age dated ordinary chondritic meteorites from hot desert regions.Geochim Cosmochim Acta,1998,62:3169–3184
20 Goudie A S,Wright E,Viles H A.The roles of salt(sodium nitrate)and fog in weathering:A laboratory simulation of conditions in the northern Atacama Desert,Chile.Catena,2002,48:255–266
21 Goudie A S,Parker A G.Experimental simulation of rapid rock block disintegration by sodium chloride in a foggy coastal desert.J Arid Environ,1998,40:347–355
22 王道德,林杨挺,戴诚达,等.南极陨石与沙漠陨石的对比研究.极地研究,1999,11:45–58
23 刘小汉,琚宜太.格罗夫山:我国新发现的一个陨石富集区.极地研究,2002,14:243–247