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西昌昔格达组物质组成及源区分析

, PP. 378-396

Keywords: 西昌,昔格达组,矿物成分,化学成分,物源区,物源分析

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Abstract:

西昌昔格达组主要由杂色水平纹层状粘土(岩)及粉细砂(岩)构成,偶夹砂卵石层,以水平层理为主,粉细砂层中偶见交错层理。粘土(岩)的成岩程度高于粉细砂(岩),但后者中含有完全成岩的粉细砂岩条带。粘土(岩)由27%~35%的绿泥石、18%~26%的绢云母、27%~35%的石英和13%~20%的斜长石组成,其Al2O3/SiO2仅为0.15,远低于攀枝花及大渡河富林昔格达组粘土(岩)和一般粘土。粉细砂(岩)的碎屑物主要由石英、长石和岩屑组成,平均含量分别为27%,49%和25%。昔格达组所夹卵石层分选很差,最大卵石粒径6cm,含有昔格达组粘土岩和粉细砂碎块及强风化石英闪长岩和泥质粉砂岩碎块。昔格达组自身及所夹卵石层的矿物及化学成分表明,其物源区以物理风化为主,碎屑物质搬运距离近、堆积迅速,区内有玄武岩、石英闪长岩、花岗岩、流纹岩及斑流岩、石灰岩、砂岩、粉砂岩、泥质粉砂岩及片岩、千枚岩、变砂岩等浅变质岩出露。安宁河流域黄连关以北段不仅具备西昌昔格达组物源区的地质环境特征,而且具有补给西昌昔格达湖盆的物源储备,昔格达组自身及所夹卵石层中已经识别出的矿物碎屑、岩屑及卵石在区内都有分布。西昌昔格达组形成于安宁河之后,其沉积环境应为安宁河局部下陷形成的断陷湖盆,沉积物来源具有很强的局地性。

References

[1]  1 袁复礼.中国西南区第四纪地质的一些资料.中国第四纪研究,1958,(2):130~140
[2]  Yuan Fuli.Some data of Quaternary geology in South Western China. Quaternaria Sinica,1958,(2):130~140
[3]  2 第四纪冰川考察队.四川西昌螺髻山地区第四纪冰川地质.见: 中国地质科学院地质力学研究所编.中国第四纪冰川地质文集.北京: 地质出版社,1977.1~43
[4]  Quaternary Glacier Survey Group.Quaternary glacialgeology in the Luojishan region of Xichang,Sichuan.In: Institute of Geomechanics,Chinese Academy of Geological Sciences ed.Collection on Quaternary Glacial Geology of China.Beijing: Geological Publishing House,1977.1~43
[5]  3 第四纪冰川考察队.四川渡口地区第四纪金沙冰期的初步探讨.见: 中国地质科学院地质力学研究所编.中国第四纪冰川地质文集.北京: 地质出版社,1977.44~54
[6]  Quaternary Glacier Survey Group.Preliminary discussion on the Quaternary Jinsha Glaciations in Dukou region,Sichuan.In: Institute of Geomechanics,Chinese Academy of Geological Sciences ed.Collection on Quaternary Glacial Geology of China.Beijing: Geological Publishing House,1977.44~54
[7]  4 地质部四川省地质局第一区域地质测量队.中华人民共和国 1 :200000 西昌幅矿产图.1966
[8]  First Regional Geological Survey Team,Sichuan Geology Bureau,Ministry of Geology,1 :200000 Mineral Deposits Map of Xichang,China.1966
[9]  5 王思敬,黄鼎成主编.攀西地区环境工程地质.北京: 海洋出版社,1990.31~265
[10]  Wang Sijing,Huang Dingcheng eds.Environmental Engineering Geology in Panzhihua and Xichang.Beijing: China Ocean Press,1990.31~265
[11]  6 张岳桥,杨 农,陈 文等.中国东西部地貌边界带晚新生代构造变形历史与青藏高原东缘隆升过程初步研究.地学前缘,2003, 10 (4):599~612
[12]  Zhang Yueqiao,Yang Nong,Chen Wen et al.Late Cenozoic tectonic deformation history of the east-west geomorphological boundary zone of China and uplift process of the eastern margin of the Tibetan Plateau. Earth Science Frontiers,2003, 10 (4):599~612
[13]  7 张宗祜.川滇南北构造带中段晚新生代地质研究.北京: 石油工业出版社,1994.161~169
[14]  Zhang Zonghu.Late Cenozoic Geology in the Middle Segment of Sichuan-Yunnan South-North Tectonic Belt.Beijing: Petroleum Industry House,1994.161~169
[15]  8 马玉孝,刘家铎,王洪峰等.攀枝花地质.成都: 四川科学技术出版社,2001.169~175
[16]  Ma Yuxiao,Liu Jiaduo,Wang Hongfeng et al.Geology of the Panzhihua Region.Chengdu: Sichuan Science & Technology Press,2001.169~175
[17]  9 蒋复初,吴锡浩,肖华国等.四川泸定昔格达组时代及其新构造意义.地质学报,1999, 73 (1):1~6
[18]  Jiang Fuchu,Wu Xihao,Xiao Huaguo et al.On the age of the Xigeda formation in Luding,Sichuan,and its neotectonic significance. Acta Geologica Sinica,1999, 73 (1):1~6
[19]  10 王书兵,赵志中,乔彦松等.泸定昔格达组时代认定与古环境.第四纪研究,2006, 26 (2):257~264
[20]  Wang Shubing,Zhao Zhizhong,Qiao Yansong et al.Age and paleoenvironment of Xigeda Formation in Luding,Sichuan. Quaternary Sciences,2006, 26 (2):257~264
[21]  11 中国地质科学院地质力学研究所.青藏高原东缘第四纪地质环境调查与评价重要进展(2003~2005年).at: http://old.cgs.gov.cn
[22]  Institute of Geomechanics,Chinese Academy of Geological Sciences.Important progress of Quaternary Geology Investigation and Evalu ation in the Eastern of Tibetan Plateau(2003~2005).(at: http://old.cgs.gov.cn)
[23]  12 Kong Ping, Granger D E,Wu Fuyuan et al.Cosmogenic nuclide burial ages and provenance of the Xigeda paleo-lake: Implications for evolution of the middle Yangtze River. Earth and Planetary Science Letters,2009, 278 :131~141
[24]  Kong Defang et al.Science of Engineering Rock and Soil and Environmental Geology.Chengdu: South West Jiaotong University Press,1999.36~50
[25]  18 赵澄林,朱筱敏.沉积岩石学.北京: 石油工业出版社,2001.47,99~124
[26]  Zhao Chenglin,Zhu Xiaomin.Sedimentary Petrology.Beijing: Petroleum Industry Press,2001.47,99~124
[27]  19 Nesbitt H W, Young G M.Early Proterozoic climates and plate motions inferred from major element chemistry of lutites. Nature,1982, 279 :715~717
[28]  20 Duzgoren-Aydin N S, Aydin A,Malpas J.Re-assessment of chemical weathering indices: Case study on pyroclastic rocks of Hong Kong. Engineering Geology,2002, 63 :99~119
[29]  21 郑 勇,王亚军,孔 屏.四川攀枝花昔格达组及其下伏河流砾石的地球化学特征以及对物源的制约.地质科学,2009, 44 (3):1036~1051
[30]  Zheng Yong,Wang Yajun,Kong Ping.Geochemical characteristics of Xigeda lacustrine sediments underlying fluvial gravels and its constraints on provenance related to Xigeda paleo-lake in Panzhihua area,Sichuan Province. Chinese Journal of Geology,2009, 44 (3):1036~1051
[31]  22 四川省地质矿产局.四川省区域地质志.北京: 地质出版社,1982.288~305
[32]  Bureau of Geology and Mineral Resources of Sichuan Province.Regional Geology of Sichuan Province.Beijing: Geological Publishing House,1982.288~305.
[33]  13 陈智梁,孙志明,Royden L H等.四川泸定昔格达组的堰塞湖成因及其意义.第四纪研究,2004, 24 (6):614~620
[34]  Chen Zhiliang,Sun Zhiming,Royden L H et al.Landslide blocked lake: Origin of the Xigeda Formation in Luding,Sichuan and its significance. Quaternary Sciences,2004, 24 (6):614~620
[35]  14 陈富斌,赵永涛.攀西地区新构造.成都: 四川科学技术出版社,1988.1~16
[36]  Chen Fubin,Zhao Yongtao.The Neotectonics in Panzhihua-Xichang Region of Chian.Chengdu: Sichuan Science & Technology Press,1988.1~16
[37]  16 徐亚军,杜远生,杨江海.沉积物物源分析研究进展.地质科技情报,2007, 26 (3):26~32
[38]  Xu Yajun,Du Yuansheng,Yang Jianghai.Prospects of sediment provenance analysis. Geological Science and Technology Information,2007, 26 (3):26~32
[39]  17 孔德坊等著.工程岩土与环境地质.成都: 西南交通大学出版社,1999.36~50
[40]  15 钱 方,徐树金,陈富斌等.昔格达组磁性地层的研究.山地研究,1984, 2 (4):275~282
[41]  Qian Fang,Xu Shujin,Chen Fubin et al.Study on the paleomagnetism of the Xigeda Formation. Journal of Mountain Research,1984, 2 (4):275~282

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