碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

李双建

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碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

李双建

文章导航 > 沉积学报 > 2006 > 24(1): 28-35

李双建. 碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示[J]. 沉积学报, 2006, 24(1): 28-35.

引用本文:

李双建. 碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示[J]. 沉积学报, 2006, 24(1): 28-35.

LI Shuangjian. The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance [J]. Acta Sedimentologica Sinica, 2006, 24(1): 28-35.

Citation:

LI Shuangjian. The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance [J]. Acta Sedimentologica Sinica, 2006, 24(1): 28-35.

李双建. 碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示[J]. 沉积学报, 2006, 24(1): 28-35.

引用本文:

李双建. 碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示[J]. 沉积学报, 2006, 24(1): 28-35.

Citation:

碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

李双建

中国科学院地质与地球物理研究所北京 100029

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通讯作者:
李双建

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The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance 

LI Shuangjian

Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029

More Information

Corresponding author: LI Shuangjian

摘要

摘要: 碎屑沉积是山脉隆升和盆地沉积的直接记录，包括碎屑重矿物研究在内的碎屑沉积物的分析是开展盆山耦合研究的必要手段。对库车坳陷白垩系—第三系砂岩中重矿物含量特征进行了系统的研究，并应用电子探针技术分析碎屑石榴石和钛铁矿的化学组成，研究表明库车坳陷白垩—第三系源区主要由沉积岩、变质岩和酸性火山岩组成。白垩系砂岩中的石榴石来自西南天山蓝片岩和低级变质岩的比例较大，而第三系砂岩中的石榴石中富铁铝榴石组分，多来自高级变质岩。白垩系砂岩中的钛铁矿多来自变质岩，上第三系砂岩中来自火成岩的钛铁矿比例增加。由此可以认为南天山的大规模隆升和剥蚀发生在第三纪以来，由于它的隆升遮挡了南天山北缘古生代增生杂岩体对库车坳陷的物质贡献，并且随着剥蚀的加深，高级变质岩和火成岩的出露越来越多。
- 重矿物 /
- 库车坳陷 /
- 南天山 /
- 物源 /
- 电子探针 /
- 石榴石 /
- 钛铁矿
Abstract: Detrital sedimentation is the direct record in basin for mountain uplift and erosion. The analysis of detrital minerals, including heavy minerals, is a key means for basinmountain coupling studies. The distribution characteristics of heavy minerals in CretaceousTertiary sandstones, Kuqa depression have been studied systemically in this paper, and chemical compositions of detrital garnets and ilmenites have been analyzed by electronic microprobe. The results illustrate that the provenance area of CretaceousTertiary〖KG*2〗sandstones, Kuqa depression, are mainly composed of sedimentary rocks, metamorphic rocks and little intermediatefelsic igneous rocks.〖KG*2〗The〖KG*2〗garnets in Cretaceous sandstones come from blueschist that〖KG*2〗located in the southwest〖KG*2〗Tianshan and lowgrade metamorphic rocks by lager proportionally. The garnets in Tertiary sandstones enrich almandine, which come from highgrade metamorphic rocks. The provenance of most ilmenites in Cretaceous sandstones is metamorphic rocks, and the proportion of igneous rocks provenance increase in Tertiary. These analysis show that southern Tianshan uplift and erosion extensively from Tertiary, as a result of which the provenance of blue schist〖KG*2〗in Paleozoic accretion from north margin of south〖KG*2〗Tianshan has been curtained. With〖KG*2〗deeply erosion of Tianshan, more and more highgrade metamorphic and igneous rocks are exposed.
- heavy mineral /
- Kuqa depression /
- southern Tianshan /
- provenance /
- electronic microprobe /
- garnet /
- ilmenite

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[2]	李姝睿, 孙高远, 茅昌平, 饶文波. 江苏沿岸辐射沙脊物源分析——来自碎屑重矿物与锆石年代学的证据 . 沉积学报, 2022, 40(4): 931-943. doi: 10.14027/j.issn.1000-0550.2022.023
[3]	张晓, 朱丽东, 李凤全, 马桢桢, 熊文婷, 贾佳, 王琳怡. 0.44 Ma以来南方风尘加积型红土物源分析：重矿物和碎屑锆石年代学证据 . 沉积学报, 2022, 40(2): 494-507. doi: 10.14027/j.issn.1000-0550.2020.099
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[6]	杨梅, 洪天求, 徐锦龙, 李秀财, 罗雷. 皖南志留系唐家坞组物源分析:来自碎屑锆石年代学和岩石地球化学的制约 . 沉积学报, 2018, 36(1): 42-56. doi: 10.3969/j.issn.1000-0550.2018.007
[7]	韩元红, 徐旭辉, 陆建林, 朱建辉, 彭金宁, 武英利, 邱岐, 王东燕. 苏北东台坳陷阜宁组沉积演化数模物源分析 . 沉积学报, 2018, 36(4): 722-730. doi: 10.14027/j.issn.1000-0550.2018.060
[8]	石鑫, 侯明才, 黄虎, 胡小龙, 江文剑, 吴斌, 缪宗利, 郑斯赫. 伊犁盆地南缘中-下侏罗统物源分析及其对南天山造山带演化的启示 . 沉积学报, 2018, 36(3): 446-455. doi: 10.14027/j.issn.1000-0550.2018.115
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碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

李双建

中国科学院地质与地球物理研究所北京 100029

通讯作者: 李双建

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2006-02-10

关键词:

重矿物 /

库车坳陷 /

南天山 /

物源 /

电子探针 /

石榴石 /

钛铁矿

摘要: 碎屑沉积是山脉隆升和盆地沉积的直接记录，包括碎屑重矿物研究在内的碎屑沉积物的分析是开展盆山耦合研究的必要手段。对库车坳陷白垩系—第三系砂岩中重矿物含量特征进行了系统的研究，并应用电子探针技术分析碎屑石榴石和钛铁矿的化学组成，研究表明库车坳陷白垩—第三系源区主要由沉积岩、变质岩和酸性火山岩组成。白垩系砂岩中的石榴石来自西南天山蓝片岩和低级变质岩的比例较大，而第三系砂岩中的石榴石中富铁铝榴石组分，多来自高级变质岩。白垩系砂岩中的钛铁矿多来自变质岩，上第三系砂岩中来自火成岩的钛铁矿比例增加。由此可以认为南天山的大规模隆升和剥蚀发生在第三纪以来，由于它的隆升遮挡了南天山北缘古生代增生杂岩体对库车坳陷的物质贡献，并且随着剥蚀的加深，高级变质岩和火成岩的出露越来越多。

English Abstract

The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance 

LI Shuangjian

Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029

Corresponding author: LI Shuangjian

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2006-02-10

Keywords:

Abstract: Detrital sedimentation is the direct record in basin for mountain uplift and erosion. The analysis of detrital minerals, including heavy minerals, is a key means for basinmountain coupling studies. The distribution characteristics of heavy minerals in CretaceousTertiary sandstones, Kuqa depression have been studied systemically in this paper, and chemical compositions of detrital garnets and ilmenites have been analyzed by electronic microprobe. The results illustrate that the provenance area of CretaceousTertiary〖KG*2〗sandstones, Kuqa depression, are mainly composed of sedimentary rocks, metamorphic rocks and little intermediatefelsic igneous rocks.〖KG*2〗The〖KG*2〗garnets in Cretaceous sandstones come from blueschist that〖KG*2〗located in the southwest〖KG*2〗Tianshan and lowgrade metamorphic rocks by lager proportionally. The garnets in Tertiary sandstones enrich almandine, which come from highgrade metamorphic rocks. The provenance of most ilmenites in Cretaceous sandstones is metamorphic rocks, and the proportion of igneous rocks provenance increase in Tertiary. These analysis show that southern Tianshan uplift and erosion extensively from Tertiary, as a result of which the provenance of blue schist〖KG*2〗in Paleozoic accretion from north margin of south〖KG*2〗Tianshan has been curtained. With〖KG*2〗deeply erosion of Tianshan, more and more highgrade metamorphic and igneous rocks are exposed.

李双建. 碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示[J]. 沉积学报, 2006, 24(1): 28-35.

引用本文:

李双建. 碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示[J]. 沉积学报, 2006, 24(1): 28-35.

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碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

通讯作者:
李双建

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The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance 

Corresponding author: LI Shuangjian

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目录

碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

中国科学院地质与地球物理研究所北京 100029

通讯作者: 李双建

English Abstract

The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance 

Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029

Corresponding author: LI Shuangjian

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碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

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The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance 

Corresponding author: LI Shuangjian

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碎屑重矿物分析对库车坳陷白垩—第三纪物源变化的指示

中国科学院地质与地球物理研究所 北京 100029

通讯作者: 李双建

English Abstract

The Analysis of Detrital Heavy Minerals in CretaceousTertiary Sandstones, Kuqa Depression and Their Implications for Provenance 

Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029

Corresponding author: LI Shuangjian

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通讯作者:
李双建

中国科学院地质与地球物理研究所北京 100029