柴东北缘上古生界砂砾岩碎屑组分特征及其物源构造属性

孙娇鹏; 陈世悦; 庄毓凯; 刘金; 胡忠亚; 马帅

柴东北缘上古生界砂砾岩碎屑组分特征及其物源构造属性

1.
中国石油大学(华东)地球科学与技术学院, 山东青岛 266580
2.
江苏油田试采一厂, 江苏扬州 225400

基金项目:

国土资源地调项目 [2014]03-025-002;1212011120964-02

详细信息

作者简介:
孙娇鹏(1988-), 男, 博士研究生, 从事大地构造与沉积古地理研究。E-mail:sunjiaopeng@163.com

中图分类号: TE121.3
计量
- 文章访问数: 217
- HTML全文浏览量: 78
- PDF下载量: 13
- 被引次数: 0
出版历程
- 收稿日期: 2015-03-24
- 刊出日期: 2015-04-01

THE CLASTIC COMPOSITION CHARACTERISTICS OF UPPER PALAEOZOIC GLUTENITE IN NORTHEAST QAIDAM EDGE AND THE STRUCTURAL ATTRIBUTES OF SOURCE AREA

1.
China University Of Petroleum, School Of Geosciences, Qingdao 266555, Shandong, China
2.
Sinopec Jiangsu Oilfield Plant one, Yangzhou 225400, Jiangsu, China

摘要

摘要: 基于柴东北缘德令哈地区上古生界126件碎屑岩样品的镜下鉴定, 结合对牦牛山组、城墙沟组、怀头他拉组、克鲁克组及扎布萨尕秀组砂砾岩岩石学特征、沉积特征的野外调查, 研究柴达木东北部地区晚古生代碎屑岩物源区, 并在此基础上进一步讨论该地区晚古生代盆山格局。研究结果表明, 柴东北缘德令哈地区晚古生代主要发育扇三角洲-障壁海岸沉积体系, 砂砾岩碎屑颗粒结构成熟度较低, 重力流证据普遍存在; 各层段砂砾岩碎屑颗粒中Q/(R+F)值在1.89~3.74之间, 呈现低成分成熟度特点。碎屑颗粒组成及近物源沉积证据一致表明, 研究区晚古生代以鱼卡-沙柳河加里东期造山带为主要物源区。该造山带至少存在了195 Ma, 包括距今465~430 Ma的山体隆升与距今430~270 Ma的山体剥蚀阶段。柴达木海盆与德令哈海盆是两个独立的海盆, 发育展布方向完全相反的沉积体系。同时, 德令哈地区上古生界含油气系统勘探应将鱼卡河-沙柳河高压-超高压变质带视为勘探边界。
- 晚古生代 /
- 碎屑颗粒组分 /
- 物源分析 /
- 鱼卡-沙柳河造山带 /
- 构造属性
Abstract: Combining the microscopic analysis of one hundred and twenty-six clastic rock samples from the Upper Paleozoic in Delingha region with the petrology and sedimentology features of Maoniushan formation, Chengqianggou formation, Huaitoutala formation, Keruk formation and Zhabugaxiu formation, we concluded the provenance of the Upper Palaeozoic clastic rocks in Northeast Qaidam edge and made further discussion on the basin-mountain framework in this area. The resluts showed that fan dalta-beach barrier sedimentary system widely developed in Delingha region, the northeastern margin of Qaidam basin. The texture maturity sandstone of glutenite was low and the gravity flow was widespread with obvious evidence. The value of Q/(R+F) in each gravel layer was between 1.89 and 3.74, reflecting the low texture maturity. The clastic composition and the near-source sedimentary evidence consistently showed that the Yuka-Shaliuhe Caledonian orogenic belt was the provenance of the study area in Late Paleozoic which existed at least 195 Ma, including the uplift stage from 465 Ma to 430 Ma ago and the denudation stage between 430 Ma and 270 Ma ago. Qaidam basin and Delingha basin are two independent basin, with depositional system of opposite direction distribution. The Yuka-Shaliuhe HP-UHP metamorphic belt should be the exploration border of the Upper Paleozoic petroleum system in Delingha region.
- Late Paleozoic /
- clastic particles /
- provenance analysis /
- Yuka-Shaliuhe tectonic belt /
- structure attribute

HTML全文

图 1 柴北缘地层-构造简图(据文献[4~7]修编)

Figure 1. Sketch stratum-geological map of northern Qaidam

下载: 全尺寸图片幻灯片

图 2 柴达木盆地东北缘地质简图(据文献[4]简化)

Figure 2. Geological sketch map of northeastern Qaidam basin

下载: 全尺寸图片幻灯片

图 3 柴北缘上古生界砂岩碎屑中石英(Qt)、长石(F)和岩屑(L)含量三角图以及柴北缘上古生界可能的物源区(据文献[1]修改)

Figure 3. The Qt-F-L triangle plot of 126 Upper Paleozoic sandstone samples and the potential provenance in northern Qaidam

下载: 全尺寸图片幻灯片

图 4 德令哈地区上古生界砂岩碎屑组分含量纵向变化

Figure 4. The vertical clastic composition change of the Upper Paleozoic sandstones in Delingha area

下载: 全尺寸图片幻灯片

图 5 德令哈地区上古生界碎屑岩镜下照片

Figure 5. Micrograph of the Upper Paleozoic clastic rocks in Delingha area

下载: 全尺寸图片幻灯片

图 6 德令哈地区上古生界砂砾岩重力流沉积证据

a—牦牛山剖面牦牛山组冲积扇沉积中的片岩砾石；b—城墙沟剖面城墙沟组扇三角洲相细砾岩；c—城墙沟剖面怀头他拉组扇三角洲相细砾岩；d—ZK1-1井克鲁克组扇三角洲砾岩沉积

Figure 6. Evidence of Upper Palaeozoic glutenite gravity flow deposits in Delingha area

下载: 全尺寸图片幻灯片

图 7 柴北缘地区晚古生代构造-古地理剖面简图^[1]

Figure 7. The paleostructure-paleogeographic sketch map of Late Paleozoic in northern Qaidam

下载: 全尺寸图片幻灯片

表 1 德令哈地区上古生界砂岩碎屑组分平均含量

Table 1. The average detrial composition of Upper Paleozoic in Delingha area

地层	碎屑组分平均含量/%
地层	石英	长石	岩屑	岩浆岩岩屑	沉积岩岩屑	变质岩岩屑
牦牛山组	62.1	12.5	20.3	12.0	4.7	4.1
城墙沟组	68.3	20.4	8.5	1.5	4.9	2.9
怀头他拉组	63.3	18.2	14.4	1.2	6.5	6.7
克鲁克组	72.5	9.6	15.1	1.3	6.5	6.5
扎布萨尕秀组	76.1	7.6	13.5	5.3	1.9	6.3

下载: 导出CSV

参考文献(16)

[1]	Dickinson W R. Interpreting provenance relations from detrital modes of sandstones:Provenance of arenites[M]. Netherlands:Springer, 1985:333~361.
[2]	Greene T J, Carroll A R, Wartes M, et al. Integrated provenance analysis of a complex orogenic terrane:Mesozoic uplift of the Bogda Shan and inception of the Turpan-Hami Basin, NW China[J]. Journal of Sedimentary Research, 2005, 75(2):251~267. doi: 10.2110/jsr.2005.019
[3]	马雪, 伊海生, 夏国清, 等.柴达木盆地西部新生代砂岩碎屑组分变化记录的沉积转型事件[J].地质通报, 2010, 29(9):1294~1303. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201009005.htm MA Xue, YI Hai-sheng, XIA Guo-qing. Cenozoic sedimentary transformation event record by detrital components in western Qaidam basin, Qinghai, China[J]. Geological Bulletin of China, 2010, 29(9):1294~1303. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201009005.htm
[4]	郝国杰, 陆松年, 王惠初, 等.柴达木盆地北缘前泥盆纪构造格架及欧龙布鲁克古陆块地质演化[J].地学前缘, 2004, 11(3):115~122. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY200403016.htm HAO Guo-jie, LU Song-nia, WANG Hui-chu, et al. The Pre-Devonian tectonic framework in the northern margin of Qaidam basin and geological evolution of Olongbuluck palaeo-block[J]. Earth Science Frontiers, 2004, 11(3):115~122. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY200403016.htm
[5]	王惠初. 柴达木盆地北缘早古生代碰撞造山带及岩浆作用[D]. 北京: 中国地质大学, 2006. http://cdmd.cnki.com.cn/Article/CDMD-11415-2006065308.htm WANG Hui-chu. Continental collision orogenic belt and magmatism of northern Qaidam basin in early Paleozoic[D]. Beijing:China University of Geosciences, 2006. http://cdmd.cnki.com.cn/Article/CDMD-11415-2006065308.htm
[6]	陆松年.青藏高原北部前寒武纪地质初探[M].北京:地质出版社, 2002. LU Song-nian. Primary investigation of the Precambrian geology in the north Tibetan plateau[M]. Beijing:Geological Publishing House, 2002.
[7]	孙娇鹏. 柴达木东北部新元古代-古生代盆山格局及构造古地理演化[D]. 北京: 中国石油大学, 2010. SUN Jiao-peng. Neoproterozoic to Paleozoic basin-mountain framework and Palaeotectonic-Paleogeography evolution of northeastern Qaidam[D]. Beijing:China University of Petroleum, 2015.
[8]	郭安林, 张国伟, 强娟, 等.青藏高原东北缘印支期宗务隆造山带[J].岩石学报, 2009, 25(1):1~12. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200901002.htm GUO An-lin, ZHANG Guo-we, QIANG Juan, et al. Indosinian Zongwulong orogenic belt on the northeastern margin of the Qinghai-Tibet plateau[J]. Acta Petrologica Sinica, 2009, 25(1):1~12. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200901002.htm
[9]	史仁灯, 杨经绥, 吴才来, 等.柴达木北缘超高压变质带中的岛弧火山岩[J].地质学报, 2004, 78(1):52~64. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200401007.htm SHI Ren-deng, YANG Jing-sui, WU Cai-lai, et al. Island arc volcanic rocks in the north Qaidam UHP metamorphic belt[J]. Acta Geologica Sinica, 2004, 78(1):52~64. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200401007.htm
[10]	孙延贵, 张国伟, 王瑾, 等.秦昆结合区两期基性岩墙群⁴⁰Ar/³⁹Ar定年及其构造意义[J].地质学报, 2004, 78(1):65~71. SUN Yan-gui, ZHANG Guo-wei, WANG Jin, et al. ⁴⁰Ar/³⁹Ar age of the basic sill swarms of two periods in the junction area of Qinling and Kunlun and its tectonic significance[J]. Acta Geologica Sinica, 2004, 78(1):65~71.
[11]	马寅生, 尹成明, 刘成林, 等.柴达木盆地石炭系油气资源调查评价进展[J].地球学报, 2012, (2):135~144. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXB201202002.htm MA Yin-sheng, YIN Cheng-ming, LIU Cheng-lin, et al. The progress of Carboniferous oil and gas investigation and assessment in Oaidam Basin[J]. Acta Geoscientia Sinica, 2012, (2):135~144. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXB201202002.htm
[12]	牟泽辉.青海柴达木板块石炭纪沉积特征与构造作用[J].西北地质, 1989, (2):8~13. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI198902001.htm MOU Ze-hui. Sedimentary characteristics and tectonism of Qinghai Qaidam plates in Carboniferous[J]. Northwestern Geology, 1989, (2):8~13. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI198902001.htm
[13]	杨超, 陈清华, 王冠民, 等.柴达木地区晚古生代沉积构造演化[J].中国石油大学学报:自然科学版, 2010, 34(5):38~43, 49. http://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201005009.htm YANG Chao, CHEN Qing-hua, WANG Guan-min, et al. Sedimentary and tectonic evolution of Qaidam areas in Late Paleozoic[J]. Journal of China University of Petroleum:Natural Science Edition, 2010, 34(5):38~43, 49. http://www.cnki.com.cn/Article/CJFDTOTAL-SYDX201005009.htm
[14]	王训练, 高金汉, 张海军, 等.柴达木盆地北缘石炭系顶、底界线再认识[J].地学前缘, 2002, 9(3):65~72. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY200203011.htm WANG Xun-lian, GAO Jin-han, ZHANG Hai-jun, et al. Recognition of the top and base boundaries of the Carboniferous system in the northern Qaidam basin[J]. Earth Science Frontiers, 2002, 9(3):65~72. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY200203011.htm
[15]	张亚峰, 裴先治, 丁仨平, 等.东昆仑都兰县可可沙地区加里东期石英闪LA-ICP-MS U-Pb年龄及其意义[J].地质通报, 2010, 29(1):79~83. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201001010.htm ZHANG Ya-feng, PEI Xian-zhi, DING Sa-ping, et al. LA-ICP-MS zircon U-Pb age of quartz diorite at the Kekesha area of Dulan County, eastern section of the East Kunlun Orogenic Belt, China and its significance[J]. Geological Bulletin of China, 2010, 29(1):79~83. http://www.cnki.com.cn/Article/CJFDTOTAL-ZQYD201001010.htm
[16]	张耀玲, 胡道功, 石玉若, 等.东昆仑造山带牦牛山组火山岩SHRIMP锆石U-Pb年龄及其构造意义[J].地质通报, 2010, 29(11):1614~1618. doi: 10.3969/j.issn.1671-2552.2010.11.003 ZHANG Yao-ling, HU Dao-gong, SHI Yu-ruo, et al. SHRIMP zircon U-Pb ages and tectonic significance of Maoniushan Formation volcanic rocks in East Kunlun Orogenic Belt, China[J]. Geological Bulletin of China, 2010, 29(11):1614~1618. doi: 10.3969/j.issn.1671-2552.2010.11.003