SOFT SEDIMENT DEFORMATION AND GENESIS OF THE EARLY-MIDDLE JURASSIC YANAN FORMATION, ORDOS BASIN
-
摘要:
古地震相关的软沉积物变形构造在盆地演化中具有指示盆地及其周缘构造活动的作用.在鄂尔多斯盆地延安组岩心描述和野外调查过程中，于定边西南部DT3522井、安塞延河剖面中，发现并识别出软沉积物液化变形层，包括液化作用相关的枕状层、液化砂岩脉、液化角砾岩、泥火山，以及负载构造、球枕构造等9种变形构造.通过软沉积物变形层位对比，变形特征研究，结合区域构造背景认为，鄂尔多斯盆地延安组延7油层组沉积末期，发生了3期古地震活动，且呈现地震强度先弱后强的特征.
Abstract:The paleoearthquake-related soft sediment deformation structure plays a role in revealing the tectonic activity of basin and periphery in basin evolution. Based on the core description and field survey of Yanan Formation in Ordos Basin, the soft sediment liquefaction deformation layers are identified in DT3522 well in the southwest of Dingbian and the Yanhe section in Ansai, including the liquefaction-related pillow beds, liquefied sandstone vein, liquefied breccia, mud volcano and 9 deformation structures such as load structure and ball-and-pillow structure. Through study on the correlation between soft sediment deformation layers and deformation characteristics, combined with regional tectonic setting, it is believed that there are 3 stages of paleoseismic activities with the earthquake from weak to intense in the late sedimentary period of Y7 oil layer in Yanan Formation, Ordos Basin.
-
Key words:
- Ordos Basin /
- Early-Middle Jurassic /
- Yanan Formation /
- soft sediment deformation /
- paleoearthquake /
- Shaanxi Province
-
-
[1] 赵澂林, 刘孟慧.湖相沉积岩中的同生变形构造及其地质意义[J].岩石学报, 1988, 4(4):14-21. http://www.cnki.com.cn/Article/CJFDTotal-YSXB198804001.htm
[2] 黄天坤, 任战利.鄂尔多斯盆地中侏罗统延安组软沉积变形构造特征研究[J].西北大学学报(自然科学版), 2019, 49(2):248-257. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=xbdxxb201902012
[3] 钟宁, 蒋汉朝, 李海兵, 等.青藏高原东部河湖相沉积中的软沉积物变形的主要成因类型及其特征[J].地球学报, 2020, 41(1):23-36. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqxb202001002
[4] 李林林, 李德文.古地震学研究新探索——湖泊沉积古地震研究进展[J].地球物理学进展, 2018, 33(6):2241-2250. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqwlxjz201806007
[5] Velázquez-Bucio M M, Garduño-Monroy V H. Soft-sediment deformation structures induced by seismic activity in the San Pedro el Alto area, Acambay graben, Mexico[J]. Revista Mexicana de Ciencias Geológicas, 2018, 35(1):28-40. doi: 10.22201/cgeo.20072902e.2018.1.530
[6] 杜远生, 余文超.地震和非地震引发的软沉积物变形[J].古地理学报, 2017, 19(1):65-72. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdlxb201701006
[7] 贺静, 冯胜斌.鄂尔多斯盆地上三叠统延长组长8段液化柱及相关软沉积物变形[J].地质学报, 2017, 91(3):645-657. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dizhixb201703011
[8] 邵珠福, 钟建华, 范莉红, 等.辽河西部凹陷南段沙河街组三段震积岩特征及石油地质意义[J].石油学报, 2014, 35(3):439-449. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=syxb201403004
[9] 邵珠福, 钟建华, 李勇, 等.青岛灵山岛晚中生代重力流沉积特征及环境分析[J].地质论评, 2014, 60(3):555-566. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dzlp201403007
[10] 杨文涛, 汪校锋, 杨江海, 等.豫西义马地区中-晚三叠世古地震引起的软沉积物变形构造[J].古地理学报, 2011, 13(6):635-644. http://www.cnki.com.cn/Article/CJFDTotal-GDLX201106009.htm
[11] 高红灿, 郑荣才, 陈发亮, 等.东濮凹陷古近系沙河街组震积岩的认识及意义[J].古地理学报, 2010, 12(4):384-398. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdlxb201004002
[12] 江胜国, 钟建华, 李旭平, 等.松辽盆地三肇凹陷姚家组震积岩岩心识别[J].特种油气藏, 2010, 17(2):39-44. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=tzyqc201002010
[13] Kuenen P H. I.-Experiments in geology[J]. Transactions of the Geological Society of Glasgow, 1958, 23:1-28. doi: 10.1144/transglas.23.centenary.1
[14] 冯先岳.地震振动液化形变的研究[J].内陆地震, 1989, 3(4):299-307. http://www.cnki.com.cn/Article/CJFD1989-LLDZ198904000.htm
[15] 陈俊飞, 张昌民, 朱锐, 等.软沉积物滑塌变形物理模拟及变形机理分析[J].古地理学报, 2017, 19(1):139-146. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdlxb201701013
[16] Owen G. Experimental soft-sediment deformation:Structures formed by the liquefaction of unconsolidated sands and some ancient examples[J]. Sedimentology, 1996, 43(2):279-293. doi: 10.1046/j.1365-3091.1996.d01-5.x
[17] 杜远生, 韩欣.论震积作用和震积岩[J].地球科学进展, 2000, 15(4):389-394. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqkxjz200004005
[18] 杜远生.中国地震事件沉积研究的若干问题探讨[J].古地理学报, 2011, 13(6):581-586. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdlxb201106001
[19] 田媛, 钟建华, 王书宝, 等.鄂尔多斯盆地富县探区三叠系延长组震积岩及其地质意义[J].古地理学报, 2015, 17(4):541-552. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdlxb201504009
[20] 杜芳鹏, 刘池洋, 王建强, 等.鄂尔多斯盆地南部上三叠统延长组软沉积变形特征及构造意义[J].现代地质, 2014, 28(2):314-320. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=xddz201402009
[21] 赵俊峰, 屈红军, 林晋炎, 等.湖泊三角洲沉积露头精细解剖——以鄂尔多斯盆地裴庄剖面为例[J].沉积学报, 2014, 32(6):1026-1034. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cjxb201406004
[22] 王建民.鄂尔多斯盆地南部延7+8油层组滨浅湖滩坝体系沉积特征[J].石油与天然气地质, 2013, 34(5):672-678. http://www.cnki.com.cn/Article/CJFDTotal-SYYT201305015.htm
[23] 乔秀夫, 李海兵.枕、球-枕构造:地层中的古地震记录[J].地质论评, 2008, 54(6):721-730.
[24] 葛玉辉, 孙春林, 刘茂修.鄂尔多斯盆地东北缘中侏罗统延安组植物群与古气候分析[J].吉林大学学报(地球科学版), 2006, 36(2):164-168. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=cckjdxxb200602003
[25] 张岳桥, 廖昌珍, 施炜, 等.论鄂尔多斯盆地及其周缘侏罗纪变形[J].地学前缘, 2007, 14(2):182-196. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dxqy200702015
[26] 张岳桥, 董树文, 赵越, 等.华北侏罗纪大地构造:综评与新认识[J].地质学报, 2007, 81(11):1462-1480. http://d.wanfangdata.com.cn/Periodical/dizhixb200711002
[27] 张岳桥, 廖昌珍.晚中生代-新生代构造体制转换与鄂尔多斯盆地改造[J].中国地质, 2006, 33(1):28-40. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgdizhi200601003
[28] 李振宏, 董树文, 冯胜斌, 等.鄂尔多斯盆地中-晚侏罗世构造事件的沉积响应[J].地球学报, 2015, 36(1):22-30. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqxb201501003
[29] 李振宏, 冯胜斌, 袁效奇, 等.鄂尔多斯盆地及其周缘下侏罗统凝灰岩年代学及意义[J].石油与天然气地质, 2014, 35(5):729-741. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=syytrqdz201405020
[30] 尹国勋, 李春生.震积构造特征[J].焦作矿业学院学报, 1993(2):25-30.
[31] Sims J D. Earthquake-induced structures in sediments of Van Norman Lake, San Fernando, California[J]. Science, 1973, 182(4108):161-163. doi: 10.1126/science.182.4108.161
[32] 乔秀夫.中国震积岩的研究与展望[J].地质论评, 1996, 42(5):317-320. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dzlp199604007
-
下载:
图(8)
计量
- 文章访问数: 1274
- PDF下载数: 186
- 施引文献: 0