岫岩陨石坑石英的冲击变质特征
Shock-Metamorphic Features of Quartz in Xiuyan Crater
查看参考文献14篇
|
文摘
|
直径1.8 km的岫岩陨石坑位于辽宁省岫岩县苏子沟镇。坑区基岩为下元古界变质岩，由变粒岩、片麻岩、角闪岩、透闪岩和大理岩等岩石组成。坑内充填的撞击角砾岩石英颗粒呈现典型的冲击变质特征，其中包括沿着石英(0001)、{10 11}、{10 12}和{10 13}等方向发育的多组面状变形页理，以及石英发生相转变形成二氧化硅玻璃和柯石英。产出在二氧化硅玻璃中的针状和粒状柯石英表明从二氧化硅熔体中结晶形成。石英面状变形页理的发育特点限定冲击压力高达35 GPa，而二氧化硅熔体玻璃的存在表明冲击压力高达50 GPa。当压力释放和温度升高，二氧化硅熔体首先被形成。随着压力进一步释放到2.5～13 GPa，柯石英从二氧化硅熔体中结晶析出。岫岩陨石坑中石英面状变形页理和柯石英的存在提供了矿物冲击变质的诊断性证据。 |
|
其他语种文摘
|
The 1.8-km-diameter Xiuyan crater is located in Xiuyan County of Liaoning Province.The basement rock of the crater is made up of the Early Proterozoic metamorphic rocks composed of granulite，gneiss，hornblendite， tremolite marble，marble and so on.Quartz from the impact breccia filling in the inner crater shows typical features of shock metamorphism，including the planar deformation features(PDFs)along the crystallographic orientation of quartz on(0001)，{10 11}，{10 12}and{10 13}and so on，as well as the occurrence of silica glass and coesite formed through phase transformation of quartz.The needle-like and granular coesite occurring in silica glass is indicative of crystallization from silica melt.The features of PDFs in quartz indicate a shock pressure up to 35 GPa，whereas the occurrence of silica melt glass has undergone a shock pressure up to 50 GPa.As soon as pressure released and temperature increased，silica melt was firstly formed.As pressure dropped to the regime of 2.5-3 GPa，coesite crystallized from silica melt.The existence of coesite and PDFs in quartz provides diagnostic evidence for shock metamorphism of minerals in Xiuyan Crater. |
|
来源
|
矿物学报
,2011,31(2):161-165 【核心库】
|
|
关键词
|
陨石坑
;
石英
;
冲击变质
;
面状变形页理
;
柯石英
|
|
地址
|
中国科学院广州地球化学研究所, 同位素地球化学国家重点实验室, 广东, 广州, 510640
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4734 |
|
学科
|
天文学;地质学 |
|
基金
|
中国科学院知识创新工程重要方向项目
;
国家自然科学基金项目
;
中国科学院院长基金特别支持项目
|
|
文献收藏号
|
CSCD:4255311
|
参考文献 共
14
共1页
|
|
1.
Stoffler D. Shock metamorphism of quartz in nature and experiment:I.Basic observation and theory.
Meteoritics and Planetary Science,1994,29:155-181
|
被引
10
次
|
|
|
|
|
2.
Grieve R A F. Shock metamorphism of quartz in nature and experiment:II.Significance in geoscience.
Meteoritics and Planetary Science,1996,31:6-35
|
被引
12
次
|
|
|
|
|
3.
Carter N L. Basal quartz deformation lamellae;a criterion for recognition of impactites.
American Journal of Science,1965,263:786-806
|
被引
1
次
|
|
|
|
|
4.
Chao E C T. First natural occurrence of coesite.
Science,1960,132:220-222
|
被引
14
次
|
|
|
|
|
5.
Chao E C T. Shock effects in certain rock-forming minerals.
Science,1967,156:192-202
|
被引
9
次
|
|
|
|
|
6.
Engelhardt W V. Shock-induced planar deformation structures in quartz from the Ries crater,Germany.
Contributions to Mineralogy and Petrology,1969,20:203-234
|
被引
2
次
|
|
|
|
|
7.
Chen M. Impact-derived features of the Xiuyan meteorite crater.
Chinese Science Bulletin,2008,53:392-395
|
被引
6
次
|
|
|
|
|
8.
Chen M. Xiuyan crater,China:Impact origin confirmed.
Chinese Science Bulletin,2010,55:1777-1781
|
被引
9
次
|
|
|
|
|
9.
French B M.
Traces of Catastrophe:A Handbook of Shock-Metamorphic Effects in Terrestrial Meteorite Impact Structures,1993
|
被引
1
次
|
|
|
|
|
10.
Chopin C. Coesite and pyrope in high-grade blueschists of the Western Alps:A first record and some consequences.
Contribution to Mineralogy and Petrology,1984,86:107-118
|
被引
153
次
|
|
|
|
|
11.
Smyth J. A coesite-sanidine grospydite from the Roberts Victor Kimberlite.
Earth and Planetary Science Letters,1977,34:284-290
|
被引
1
次
|
|
|
|
|
12.
Chen M. Coesite and quartz characteristic of crystallization from shock-produced silica melt in the Xiuyan crater.
Earth and Planetary Science Letters,2010,297:306-314
|
被引
9
次
|
|
|
|
|
13.
Okuno M. A Raman spectroscopic study of shock-wave densification of vitreous silica.
Physics and Chemistry of Minerals,1999,26:304-311
|
被引
4
次
|
|
|
|
|
14.
Zhang J. In situ X-ray observations of the coesite-stishovite transition:Reversed phase boundary and kinetics.
Physics and Chemistry of Minerals,1996,23:1-10
|
被引
6
次
|
|
|
|
|
了解气象卫星更多信息，请访问