甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线

卢武长; 崔秉荃; 杨绍全; 张平

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甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线

卢武长, 崔秉荃, 杨绍全, 张平

文章导航 > 沉积学报 > 1994 > 12(3): 12-20

卢武长, 崔秉荃, 杨绍全, 张平. 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线[J]. 沉积学报, 1994, 12(3): 12-20.

引用本文:

卢武长, 崔秉荃, 杨绍全, 张平. 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线[J]. 沉积学报, 1994, 12(3): 12-20.

Lu Wuchang, Cui Bingquan, Yan Shoguan, zhang Pin. Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile[J]. Acta Sedimentologica Sinica, 1994, 12(3): 12-20.

Citation:

Lu Wuchang, Cui Bingquan, Yan Shoguan, zhang Pin. Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile[J]. Acta Sedimentologica Sinica, 1994, 12(3): 12-20.

卢武长, 崔秉荃, 杨绍全, 张平. 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线[J]. 沉积学报, 1994, 12(3): 12-20.

引用本文:

卢武长, 崔秉荃, 杨绍全, 张平. 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线[J]. 沉积学报, 1994, 12(3): 12-20.

Lu Wuchang, Cui Bingquan, Yan Shoguan, zhang Pin. Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile[J]. Acta Sedimentologica Sinica, 1994, 12(3): 12-20.

Citation:

Lu Wuchang, Cui Bingquan, Yan Shoguan, zhang Pin. Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile[J]. Acta Sedimentologica Sinica, 1994, 12(3): 12-20.

甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线

成都地质学院

基金项目: 国家自然科学基金

详细信息

中图分类号: P588.245

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文章访问数: 518
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Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile

Chengdu college of Geology. Chengdu 610059

摘要

摘要: 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线卢武长，崔秉荃，杨绍全，张平（成都地质学院）海相碳酸盐的同位素演化很早就引起人们注意Ｚ１９３６年Ｎｉｅｒ和Ｇｕｌｂｒｓｎｓｅｎ首次研究海相石灰岩的碳同位素组成。１９５１年Ｕｒｅｖ测定了箭石的氧同位素。

Abstract: Ganqi profile with a length of 13 km is located by a road from Mianyang to Pinwu .Started at Guixi grain depot and ended at limekiln of Shawozi. The Devonian of Longmenshan belongs to shallow sea and shallow water deposits .The clastic rocks of lower part of low一Devonian overlay unconformly on the lightly metamorphic siltstone and silty slate of lower一middle Silurian. Middle part of low一Devonian to lower part of mid一Devonian are charcteraized by interbedded clastic and carbonate rocks. Upper part of mid一Devonian and up一Devonian are entirely carbonate deposits. The marine carbonates of Devonian from Ganxi profile are determined serially for Sr, C, O isotopes and Na,Sr,Mn、Al、Fe, Mn trace elements as well as cathodolumines feature. Sr and C isotope stratigraphic curves of marine carbonates of Devonian are first set up some conclusions are as follows. 1. Based on studies of trace element and C,O isotopes most samples of marine carbonate and brachiopods fossil have the same strorium and carbon isotopic features as they deposited. 2. Sr and C isotope stratigraphic curves of Devonian marine carbonates and fossils from Ganxi profile are familiar with the function curves of geological age (B. N. Popp et al 1986;W. H. Barke, 1982;L. R. Kump and Garrets.1986).They implicates that Sr and C isotopic compositions of marine carbonates and fossil are controlled by globe factors(but C isotopic composition is superimposed influence of regional geological process)and have significance on statigraphic correlation. 3. C and O isotopic components of marine carbonates vary obviously at geological boundaries and can be used as subsidiary criteria for stratigraphic division. 4. When deposited,marine carbonates formed by organism or non一organism have no detectable fractionation of strontium isotope.

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参考文献(4)

[1]	Burk. W. N.，1982. Variation of seawater ⁸⁷sr/⁸⁶sr throughout phanerozoic time. Geology. Vol. 10. No. 10.
[2]	B. N. Popp et al.，1986, ⁸⁷sr/⁸⁶sr ratios in permo一〔arboniferous seawater from the analyes of well一preserved brachiopodshell. Geochimica et casmachimica Acts.，Vo1.50, p. 1321~1308.
[3]	J. Veizet et al.，1986.Geochemistry of brachiopods;Oxygen and Carbon isotopic records of Paleozoic oceans. Geochimica et cosmochimica Acts. Vol. 50, p. 1679~1696.
[4]	卢长武等，1985，川南古宋早二益统海相碳酸盐岩的碳、氧同位紊研究，矿物岩石，(4).

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文章访问数: 518
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甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线

成都地质学院

基金项目: 国家自然科学基金

刊出日期: 1994-09-10

中图分类号: P588.245

摘要: 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线卢武长，崔秉荃，杨绍全，张平（成都地质学院）海相碳酸盐的同位素演化很早就引起人们注意Ｚ１９３６年Ｎｉｅｒ和Ｇｕｌｂｒｓｎｓｅｎ首次研究海相石灰岩的碳同位素组成。１９５１年Ｕｒｅｖ测定了箭石的氧同位素。

English Abstract

Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile

Chengdu college of Geology. Chengdu 610059

Publish Date: 1994-09-10

Abstract: Ganqi profile with a length of 13 km is located by a road from Mianyang to Pinwu .Started at Guixi grain depot and ended at limekiln of Shawozi. The Devonian of Longmenshan belongs to shallow sea and shallow water deposits .The clastic rocks of lower part of low一Devonian overlay unconformly on the lightly metamorphic siltstone and silty slate of lower一middle Silurian. Middle part of low一Devonian to lower part of mid一Devonian are charcteraized by interbedded clastic and carbonate rocks. Upper part of mid一Devonian and up一Devonian are entirely carbonate deposits. The marine carbonates of Devonian from Ganxi profile are determined serially for Sr, C, O isotopes and Na,Sr,Mn、Al、Fe, Mn trace elements as well as cathodolumines feature. Sr and C isotope stratigraphic curves of marine carbonates of Devonian are first set up some conclusions are as follows. 1. Based on studies of trace element and C,O isotopes most samples of marine carbonate and brachiopods fossil have the same strorium and carbon isotopic features as they deposited. 2. Sr and C isotope stratigraphic curves of Devonian marine carbonates and fossils from Ganxi profile are familiar with the function curves of geological age (B. N. Popp et al 1986;W. H. Barke, 1982;L. R. Kump and Garrets.1986).They implicates that Sr and C isotopic compositions of marine carbonates and fossil are controlled by globe factors(but C isotopic composition is superimposed influence of regional geological process)and have significance on statigraphic correlation. 3. C and O isotopic components of marine carbonates vary obviously at geological boundaries and can be used as subsidiary criteria for stratigraphic division. 4. When deposited,marine carbonates formed by organism or non一organism have no detectable fractionation of strontium isotope.

卢武长, 崔秉荃, 杨绍全, 张平. 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线[J]. 沉积学报, 1994, 12(3): 12-20.

引用本文:

卢武长, 崔秉荃, 杨绍全, 张平. 甘溪剖面泥盆纪海相碳酸盐岩的同位素地层曲线[J]. 沉积学报, 1994, 12(3): 12-20.

Lu Wuchang, Cui Bingquan, Yan Shoguan, zhang Pin. Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile[J]. Acta Sedimentologica Sinica, 1994, 12(3): 12-20.

Citation:

Lu Wuchang, Cui Bingquan, Yan Shoguan, zhang Pin. Isotope Stratigraphic Curves of Devonian Marine Carbonates in Ganqi Profile[J]. Acta Sedimentologica Sinica, 1994, 12(3): 12-20.