伊犁盆地南缘中下侏罗统砂岩碎屑组分特征及对物源指示意义
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摘要
伊犁盆地中下侏罗统是可地浸砂岩铀矿重要的赋矿层位,查明赋铀砂体的来源对后期寻找和评价有利砂岩型铀矿聚集区具有十分重要的意义。通过对来自伊犁盆地南缘苏阿苏沟中下侏罗统剖面的岩石样品进行详细的碎屑组分分析,对该套碎屑岩的物源区母岩性质及其大地构造环境进行了研究。结果表明,该套碎屑岩主要为岩屑砂岩、岩屑石英砂岩和岩屑杂砂岩等。岩屑主要以硅质岩、粉砂岩等沉积岩屑为主,少量中酸性火山岩屑,成分成熟度较低;石英颗粒以非波状消光的单晶石英为主,多晶石英颗粒之间呈平直线状接触,阴极发光主要呈蓝光或蓝紫光;长石主要以微斜长石为主,碎屑组分特征表明其来源于中酸性火山岩源区。Dickinson图解则显示该套碎屑岩主要形成于再旋回造山带环境。结合前人研究成果,认为石炭纪岛弧环境下形成的火山岩二次旋回沉积形成了该套碎屑岩。
The Middle and Lower Jurassic in Yili Basin is an important ore-bearing horizon for sandstone uranium deposits. It is of great significance to identify the source of uranium-bearing sandstones in the later stage of exploration and evaluation of favorable sandstone type uranium accumulation area. Based on the detailed analysis of the clastic components of rock samples from the Suazugou middle and lower Jurassic section in the southern margin of the Yili Basin, the authors have studied the source rock properties of the clastic rocks and their tectonic environment. The results show that the clastic rocks are mainly lithic sandstone, lithic quartz sandstone and greywacke with low compositional maturity. Quartz particles are mainly single crystal quartz with non-wave-like extinction, polycrystalline quartz particles are in straight line contact, cathodoluminescence is mainly blue or blue violet light. Feldspar is mainly composed of micro plagioclase, and the characteristics of debris components indicate that it originated from the source area of intermediate acid volcanic rocks. The Dickinson diagram shows that the clastic rocks were mainly formed in the environment of the recycled orogenic belt environment. Based on the previous research results, it is considered that the clastic rocks were formed by the secondary cycle deposition of volcanic rocks formed in the Carboniferous island arc environment.
The Middle and Lower Jurassic in Yili Basin is an important ore-bearing horizon for sandstone uranium deposits. It is of great significance to identify the source of uranium-bearing sandstones in the later stage of exploration and evaluation of favorable sandstone type uranium accumulation area. Based on the detailed analysis of the clastic components of rock samples from the Suazugou middle and lower Jurassic section in the southern margin of the Yili Basin, the authors have studied the source rock properties of the clastic rocks and their tectonic environment. The results show that the clastic rocks are mainly lithic sandstone, lithic quartz sandstone and greywacke with low compositional maturity. Quartz particles are mainly single crystal quartz with non-wave-like extinction, polycrystalline quartz particles are in straight line contact, cathodoluminescence is mainly blue or blue violet light. Feldspar is mainly composed of micro plagioclase, and the characteristics of debris components indicate that it originated from the source area of intermediate acid volcanic rocks. The Dickinson diagram shows that the clastic rocks were mainly formed in the environment of the recycled orogenic belt environment. Based on the previous research results, it is considered that the clastic rocks were formed by the secondary cycle deposition of volcanic rocks formed in the Carboniferous island arc environment.
引文
陈奋雄, 聂逢君, 张成勇, 等. 2016. 新疆伊犁盆地蒙其古尔地区下侏罗统三工河组沉积相及其与铀矿化的关系[J].古地理学报, 18(5): 833-843.
陈正乐, 李丽, 刘健, 等.2008. 西天山隆升-剥露过程初步研究[J].岩石学报,24(4):625-636.
高山林, 李云新.2015. 西天山尼勒克水泥厂大哈拉军山组形成时代与构造背景[J]. 新疆地质,33(4):440-448.
韩效忠, 李胜祥, 蔡煜琦,等.2008. 伊犁盆地南缘隆升剥蚀及其盆地南部的沉积响应-利用磷灰石裂变径迹分析[J].岩石学报,24(10):2447-2455.
韩效忠, 李胜祥, 郑恩玖, 等. 2004.伊犁盆地新构造运动特征及其与铀成矿关系[J].新疆地质, 22(4): 378-381.
侯明才, 江文剑, 倪师军, 等.2016.伊犁盆地南缘中下侏罗统碎屑岩地球化学特征及对物源制约[J].地质学报,90(12):3337-3351.
姜常义,吴文奎,谢广成,等.1993. 西天山北部石炭纪火山岩特征与沟弧盆体系[J]. 岩石矿物学杂志,12(3):224-231.
李大鹏, 杜杨松, 庞振山, 等.2013. 西天山阿吾拉勒石炭纪火山岩年代学和地球化学研究[J]. 地球学报,34(2):176-192.
李胜祥,韩效忠,蔡煜琦,等.2006.伊犁盆地南缘西段中下侏罗统水西沟群沉积体系及其对铀成矿的控制作用[J].中国地质,33(3):582-590.
李双应,孟庆任,李任伟,等.2008. 山东胶莱盆地下白垩统莱阳组物质组分特征及其对源区的制约[J].岩石学报,24(10):2395-2406.
刘家铎,林双幸. 2003. 伊犁盆地南缘侏罗系沉积微相及铀矿控矿条件研究[J].矿物岩石,23(1):30-36.
刘家铎,孟万斌.2002. 伊犁盆地南缘侏罗系地层学研究[J].成都理工学院学报,29(6):650-656.
刘静,李永军,王小刚,等.2006. 西天山阿吾拉勒一带伊什基里克组火山岩地球化学特征及构造环境[J]. 新疆地质,24(2):105-109.
马收先, 孟庆任, 曲永强. 2014. 轻矿物物源分析研究进展[J]. 岩石学报, 30(2):597-608.
逄玮,康勇,王冰.2016.伊犁盆地南缘局部排泄源对铀成矿的影响[J].东华理工大学学报:自然科学版,39(3):253-258.
潘澄雨, 刘红旭, 陈正乐, 等.2015. 伊犁盆地南缘沉积-构造演化与砂岩型铀矿化的关系[J].铀矿地质,31(增刊1):206-212.
钱青,高俊,熊贤明,等.2006.西天山昭苏北部石炭纪火山岩的岩石学地球化学特征、成因及形成环境[J].岩石学报,22(5):1307-1323.
舒良树, 郭召杰, 朱文斌, 等.2004. 天山地区碰撞后构造与盆山演化[J]. 高校地质学报,10(3):393-404.
田景春,刘家铎,孟万斌,等.2002. 伊犁盆地南缘侏罗系高分辨率层序地层学研究[J].成都理工学院学报,29(5):499-506.
王成善,李祥辉. 2003. 沉积盆地分析原理与方法[M]. 北京:高等教育出版社.
魏周政,杨镜明,陈晓冬,等.2017. 新疆伊犁盆地北缘煤炭重点开发区天然放射性水平评价[J]. 东华理工大学学报:自然科学版,40(3):275-278.
解习农,任建业. 2013. 沉积盆地分析基础[M]. 武汉:中国地质大学出版社有限责任公司.
徐亚军,杜远生,杨江海.2007. 沉积物物源分析研究进展[J].地质科技情报, 26(3): 26-33.
杨仁超, 李进步, 樊爱萍, 等. 2013. 陆源沉积岩物源分析研究进展与发展趋势[J]. 沉积学报, 31(1):99-107.
曾爱花, 潘家永.2014. 有机碳与微量元素成矿作用机理研究——以新疆511 砂岩型铀矿床某号勘探线为例[J]. 东华理工大学学报:自然科学版,37(4):367-372.
张国伟,李三忠,刘俊霞,等. 1999.新疆伊犁盆地的构造特征与形成演化[J].地学前缘(中国地质大学, 北京),6(4):203-214.
张妮. 2012.沉积盆地的物源综合研究——以苏北盆地高邮凹陷古近系戴南组为例.[D].南京:南京大学.
朱永峰,张立飞,古丽冰,等.2005.西天山石炭纪火山岩SHRIMP年代学及其微量元素地球化学研究[J].科学通报,50(18):2004-2014.
朱永峰,周晶,郭璇.2006.西天山石炭纪火山岩岩石学及Sr-Nd同位素地球化学研究[J].岩石学报,22(5):1341-1350.
左国朝,张作衡,王志良,等.2008. 新疆西天山地区构造单元划分、地层系统及其构造演化[J]. 地质论评,54(6):748-767.
Asiedu D K, Suzuki S, Shibata T.2000. Provenance of sandstones from the Lower Cretaceous Sasayama Group,Inner Zone of Southwest Japan [J]. Sedimentary Geology, 131: 9-24.
Basu A, Young S, Suttner L.1975.Re-evaluation of the use of undulatory extinction and crystallinity in detrital quartz for provenance interpretation [J]. Journal of Sedimentary Petrology,45: 873-882.
Boggs S,Kwon Y I,Goles G G,et al. 2002. Is quartz cathodoluminescence color a reliable provenance tool A quantitative examination [J]. Journal of Sedimentary Research,72(3): 408-415.
Dickinson W R, Suczek C A. 1979. Plate tectonics and sandstone composition[J]. American Association of Petroleum Geologists Bulletin, 63:2164-2172.
Dickinson W R, Valloni R.1980. Plate settings and provenance of sands in modern oceans [J]. Geology, 8: 82- 86.
Dickinson W R, Beard L S,Brakenridge G R, et al. 1983. Provenance of North American Phaner-ozoic sandstones in relation to tectonic setting [J]. Geological Society of America Bulletin, 93: 222-235.
Dickinson W R.1985.Interpreting provenance relations from detrital modes of sandstones[C]// Zuffa G G. Provenance of arenites. Reidel, Dordrecht, NATO ASI Series 148:333-361.
Matter A,Ramseyer K.1985.Cathodoluminescence microscopy as a tool for provenance studies of sandstones[C]// Zuffa G G. Provenance of Arenites. Netherlands: D.Reidel Publishing Company:191-211.
Mclennan S M, Taylor S R. 1991. Sedimentary Rocks and Crustal Evolution: Tectonic Setting and Secular Trends [J]. The Journal of Geology, 99(1): 1-21.
Tortosa A, Palomares M, Arribas J.1991.Quartz grain types in Holocene deposits from the Spanish central system:some problems in provenance analysis[J]. Geol. Mag., 52:139-184.
Walderhaug O, Rykkje J. 2000. Some examples of the effect of crystallographic orientation on the cathodoluminescence colors of quartz [J].Journal of Sedimentary Research,70(3): 545-548.
陈正乐, 李丽, 刘健, 等.2008. 西天山隆升-剥露过程初步研究[J].岩石学报,24(4):625-636.
高山林, 李云新.2015. 西天山尼勒克水泥厂大哈拉军山组形成时代与构造背景[J]. 新疆地质,33(4):440-448.
韩效忠, 李胜祥, 蔡煜琦,等.2008. 伊犁盆地南缘隆升剥蚀及其盆地南部的沉积响应-利用磷灰石裂变径迹分析[J].岩石学报,24(10):2447-2455.
韩效忠, 李胜祥, 郑恩玖, 等. 2004.伊犁盆地新构造运动特征及其与铀成矿关系[J].新疆地质, 22(4): 378-381.
侯明才, 江文剑, 倪师军, 等.2016.伊犁盆地南缘中下侏罗统碎屑岩地球化学特征及对物源制约[J].地质学报,90(12):3337-3351.
姜常义,吴文奎,谢广成,等.1993. 西天山北部石炭纪火山岩特征与沟弧盆体系[J]. 岩石矿物学杂志,12(3):224-231.
李大鹏, 杜杨松, 庞振山, 等.2013. 西天山阿吾拉勒石炭纪火山岩年代学和地球化学研究[J]. 地球学报,34(2):176-192.
李胜祥,韩效忠,蔡煜琦,等.2006.伊犁盆地南缘西段中下侏罗统水西沟群沉积体系及其对铀成矿的控制作用[J].中国地质,33(3):582-590.
李双应,孟庆任,李任伟,等.2008. 山东胶莱盆地下白垩统莱阳组物质组分特征及其对源区的制约[J].岩石学报,24(10):2395-2406.
刘家铎,林双幸. 2003. 伊犁盆地南缘侏罗系沉积微相及铀矿控矿条件研究[J].矿物岩石,23(1):30-36.
刘家铎,孟万斌.2002. 伊犁盆地南缘侏罗系地层学研究[J].成都理工学院学报,29(6):650-656.
刘静,李永军,王小刚,等.2006. 西天山阿吾拉勒一带伊什基里克组火山岩地球化学特征及构造环境[J]. 新疆地质,24(2):105-109.
马收先, 孟庆任, 曲永强. 2014. 轻矿物物源分析研究进展[J]. 岩石学报, 30(2):597-608.
逄玮,康勇,王冰.2016.伊犁盆地南缘局部排泄源对铀成矿的影响[J].东华理工大学学报:自然科学版,39(3):253-258.
潘澄雨, 刘红旭, 陈正乐, 等.2015. 伊犁盆地南缘沉积-构造演化与砂岩型铀矿化的关系[J].铀矿地质,31(增刊1):206-212.
钱青,高俊,熊贤明,等.2006.西天山昭苏北部石炭纪火山岩的岩石学地球化学特征、成因及形成环境[J].岩石学报,22(5):1307-1323.
舒良树, 郭召杰, 朱文斌, 等.2004. 天山地区碰撞后构造与盆山演化[J]. 高校地质学报,10(3):393-404.
田景春,刘家铎,孟万斌,等.2002. 伊犁盆地南缘侏罗系高分辨率层序地层学研究[J].成都理工学院学报,29(5):499-506.
王成善,李祥辉. 2003. 沉积盆地分析原理与方法[M]. 北京:高等教育出版社.
魏周政,杨镜明,陈晓冬,等.2017. 新疆伊犁盆地北缘煤炭重点开发区天然放射性水平评价[J]. 东华理工大学学报:自然科学版,40(3):275-278.
解习农,任建业. 2013. 沉积盆地分析基础[M]. 武汉:中国地质大学出版社有限责任公司.
徐亚军,杜远生,杨江海.2007. 沉积物物源分析研究进展[J].地质科技情报, 26(3): 26-33.
杨仁超, 李进步, 樊爱萍, 等. 2013. 陆源沉积岩物源分析研究进展与发展趋势[J]. 沉积学报, 31(1):99-107.
曾爱花, 潘家永.2014. 有机碳与微量元素成矿作用机理研究——以新疆511 砂岩型铀矿床某号勘探线为例[J]. 东华理工大学学报:自然科学版,37(4):367-372.
张国伟,李三忠,刘俊霞,等. 1999.新疆伊犁盆地的构造特征与形成演化[J].地学前缘(中国地质大学, 北京),6(4):203-214.
张妮. 2012.沉积盆地的物源综合研究——以苏北盆地高邮凹陷古近系戴南组为例.[D].南京:南京大学.
朱永峰,张立飞,古丽冰,等.2005.西天山石炭纪火山岩SHRIMP年代学及其微量元素地球化学研究[J].科学通报,50(18):2004-2014.
朱永峰,周晶,郭璇.2006.西天山石炭纪火山岩岩石学及Sr-Nd同位素地球化学研究[J].岩石学报,22(5):1341-1350.
左国朝,张作衡,王志良,等.2008. 新疆西天山地区构造单元划分、地层系统及其构造演化[J]. 地质论评,54(6):748-767.
Asiedu D K, Suzuki S, Shibata T.2000. Provenance of sandstones from the Lower Cretaceous Sasayama Group,Inner Zone of Southwest Japan [J]. Sedimentary Geology, 131: 9-24.
Basu A, Young S, Suttner L.1975.Re-evaluation of the use of undulatory extinction and crystallinity in detrital quartz for provenance interpretation [J]. Journal of Sedimentary Petrology,45: 873-882.
Boggs S,Kwon Y I,Goles G G,et al. 2002. Is quartz cathodoluminescence color a reliable provenance tool A quantitative examination [J]. Journal of Sedimentary Research,72(3): 408-415.
Dickinson W R, Suczek C A. 1979. Plate tectonics and sandstone composition[J]. American Association of Petroleum Geologists Bulletin, 63:2164-2172.
Dickinson W R, Valloni R.1980. Plate settings and provenance of sands in modern oceans [J]. Geology, 8: 82- 86.
Dickinson W R, Beard L S,Brakenridge G R, et al. 1983. Provenance of North American Phaner-ozoic sandstones in relation to tectonic setting [J]. Geological Society of America Bulletin, 93: 222-235.
Dickinson W R.1985.Interpreting provenance relations from detrital modes of sandstones[C]// Zuffa G G. Provenance of arenites. Reidel, Dordrecht, NATO ASI Series 148:333-361.
Matter A,Ramseyer K.1985.Cathodoluminescence microscopy as a tool for provenance studies of sandstones[C]// Zuffa G G. Provenance of Arenites. Netherlands: D.Reidel Publishing Company:191-211.
Mclennan S M, Taylor S R. 1991. Sedimentary Rocks and Crustal Evolution: Tectonic Setting and Secular Trends [J]. The Journal of Geology, 99(1): 1-21.
Tortosa A, Palomares M, Arribas J.1991.Quartz grain types in Holocene deposits from the Spanish central system:some problems in provenance analysis[J]. Geol. Mag., 52:139-184.
Walderhaug O, Rykkje J. 2000. Some examples of the effect of crystallographic orientation on the cathodoluminescence colors of quartz [J].Journal of Sedimentary Research,70(3): 545-548.