鄂尔多斯盆地上三叠统延长组负载构造类型及特征<sup>*</sup>

doi:10.7605/gdlxb.2024.02.012

Abstract
Figure/Table
References(19)
Related Citation (15)
Read Tracking
Download Tracking

Download: PDF (1638 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS) Supporting Info

Abstract

Load structures are known as an important type of soft sediment deformation structure,and are characterized by gravity(density difference)as the main driving force and deformation occurring at the lithologic interface with inverted density. According to whether the deformation structures are separated from the parent body,load structures can be divided into three categories including,non-separated load structures,separated load structures,and composite load structures. The non-separated load structures include heavy load(mold)structures,flame structures,water drop structures and diapir(extrusion)structures,and the separated load structures includes sand ball(false nodule),ball pillow layer and mud ball. A large number of load structures were recognized in the cores and outcrops of the Yanchang Formation of the Late Triassic in the Ordos Basin. Through the analysis of the characteristics,formation conditions and triggering mechanisms of different types of load structures,it is believed that the load structures were the result of the dual mechanisms of earthquakes and gravity. In addition to gravity,seismic disturbance was also the main reason for the formation of various deformation structures. It reflects the characteristics of strong tectonic activity in the Ordos basin during the Middle Indosinian Movement.

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Yuanhao
	SHI Lichuan
	LEI Xiujie
	DAN Weidong

Key words： load structure sand ball structures earthquake Yanchang Formation Ordos Basin

Received: 14 February 2023

ZTFLH:

P531

Fund:

Financially supported by the Key Laboratory Project of Shaanxi Provincial Department of Education(No. 20JS127)

About author: LI Yuanhao,born in 1976,is an associate professor in Xi’an Shiyou University. He is mainly engaged in sedimentological research. E-mail: liyuanh@xsyu.edu.cn.

Cite this article:

LI Yuanhao,SHI Lichuan,LEI Xiujie et al. Types and characteristics of load structures in the Upper Triassic Yanchang Formation,Ordos Basin[J]. JOPC, 2024, 26(2): 269-278.

URL:

http://www.gdlxb.cn/EN/10.7605/gdlxb.2024.02.012 OR http://www.gdlxb.cn/EN/Y2024/V26/I2/269

[1] 邓秀芹,罗安湘,张忠义,刘鑫. 2013. 秦岭造山带与鄂尔多斯盆地印支期构造事件年代学对比. 沉积学报, 31(6): 939-953.
[Deng X Q,Luo A X,Zhang Z Y,Liu X.2013. Geochronological comparison on indosinian tectonic events between Qinling Orogeny and Ordos Basin. Acta Sedimentologica Sinica, 31(6): 939-953]
[2] 杜远生. 2011. 中国地震事件沉积研究的若干问题探讨. 古地理学报, 13(6): 581-586.
[Du Y S.2011. Discussion about studies of earthquake event deposit in China. Journal of Palaeogeography(Chinese Edition), 13(6): 581-590]
[3] 杜远生,G SHI,龚一鸣,徐亚军. 2007. 东澳大利亚南悉尼盆地二叠系与地震有关的软沉积变形构造. 地质学报, 81(4): 511-518.
[Du Y S,SHI G,Gong Y M,Xu Y J.2007. Permian soft-sediment deformation structures related to earthquake in the southern Sydney Basin,Eastern Australia. Acta Geologica Sinica, 81(4): 511-518]
[4] 郭鹏,李元昊,段祎乐,马婷钰. 2022. 鄂尔多斯盆地彬长地区延长组软沉积物变形构造特征及触发机制分析. 河北地质大学学报, 45(3): 39-50.
[Guo P,Li Y H,Duan Y L,Ma T Y.2022. Analysis of deformation tectonic characteristics and triggering mechanism of soft sediments of the Yanchang Formation in Binchang Area of Ordos Basin. Journal of Hebei GEO University, 45(3): 39-50]
[5] 李勇,钟建华,邵珠福,毛毳. 2012. 软沉积变形构造的分类和形成机制研究. 地质论评, 58(5): 829-838.
[Li Y,Zhong J H,Shao Z F,Mao C.2012. An overview on the classification and genesis of soft sediment deformation structure. Geological Review, 58(5): 829-838]
[6] 李元昊,刘池洋,王秀娟,郭正权. 2007. 鄂尔多斯盆地三叠系延长组砂岩墙(脉)特征及其地质意义. 中国地质, 34(3): 400-405.
[Li Y H,Liu C Y,Wang X J,Guo Z Q.2007. Characteristics and geological significance of sandstone dikes in the Triassic Yanchang Formation of the Ordos Basin. Geology In China, 34(3): 400-405]
[7] 李元昊,刘池洋,王秀娟. 2008. 鄂尔多斯盆地三叠系延长组震积岩特征研究. 沉积学报, 26(5): 772-779.
[Li Y H,Liu C Y,Wang X J.2008. Discovery and significance of seismites in late Tertianry Yanchang Formation of Ordos Basin. Acta Sedimentologica Sinica, 26(5): 772-779]
[8] 刘池洋,赵红格,桂小军,岳乐平,赵俊峰. 2006. 鄂尔多斯盆地演化—改造的时空坐标及其成藏(矿)响应. 地质学报, 80(5): 617-633.
[Liu C Y,Zhao H G,Gui X J,Yue L P,Zhao J F.2006. Space-time coordinate of evolution and reformation and mineralization response in Ordos Basin. Acta Geologica Sinica, 80(5): 617-633]
[9] 乔秀夫,李海兵. 2008. 枕,球—枕构造: 地层中的古地震记录. 地质论评, 54(6): 721-730.
[Qiao X F,Li H B.2008. Pillow,ball-and-pillow structures: paleo-seismic records within strata. Geological Review, 54(6): 721-730]
[10] 邱欣卫,刘池洋,李元昊,毛光周,王建强. 2009. 鄂尔多斯盆地延长组凝灰岩夹层展布特征及其地质意义. 沉积学报, 27(6): 1138-1146.
[Qiu X W,Liu C Y,Li Y H,Mao G Z,Wang J Q.2009. Distribution characteristics and geological significances of tuff interlayers in Yanchang Formation of Ordos Basin. Acta Sedimentologica Sinica, 27(6): 1138-1146]
[11] 田景春,王文之,王峰,王卫红,张锦泉. 2012. 鄂尔多斯盆地华池—庆阳地区上三叠统延长组长 6油层组古地震变形构造及砂体叠置关系. 古地理学报, 14(3): 301-310.
[Tian J C,Wang W Z,Wang F,Wang W H,Zhang J Q.2012. Palaeoearthquake deformation structures of the Chang 6 interval of Upper Triassic Yanchang Formation and superimposed relationship between sandbodies in Huachi-Qingyang area of Ordos Basin. Journal of Palaeogeography(Chinese Edition), 14(3): 301-310]
[12] 张风霄,周瑶琪,王安东,于姗姗. 2015. 山东省灵山岛负载构造和球—枕构造研究. 沉积与特提斯地质, 35(3): 42-50.
[Zhang F X,Zhuo Y Q,Wang A D,Yu S S.2015. Load structures and ball-and-pillow structures on the Lingshan Island,Shandong. Sedimentary Geology and Tethyan Geology. 35(3): 42-50]
[13] 张国伟,张本仁,袁学诚. 2001. 秦岭造山带与大陆动力学. 北京: 科学出版社, 1-165.
[Zhang G W,Zhang B R,Yuan X C.2001. Qinling Orogene and Continental Dynamics. Beijing: Science Press,1-165]
[14] 钟宁,蒋汉朝,梁莲姬,徐红艳,彭小平. 2017. 软沉积物变形中负载、球—枕构造的古地震研究综述. 地质论评, 63(3): 719-738.
[Zhong N,Jiang H C,Liang L J,Xu H Y,Peng X P.2017. Paleoearthquake researches via soft sediment deformation of load,ball-and-pillow structure: a review. Geological Review, 63(3): 719-738]
[15] Allen J R L.1982. Sedimentary Structures,Their Character and Physical Basis,Development in Sedimentology. Amsterdan: Elsevier,30B: 1-663.
[16] Kuenen P H.1953. Significant features of graded bedding. AAPG Bulletin, 37(5): 1044-1066.
[17] Kuenen P H.1958. Experiments in geology. Transactions of the Geological Society of Glasgow, 23: 1-28.
[18] Owen G.1996. Experimental soft-sediment deformation: structure formed by the liquefaction of unconsolidated sands and some ancient examples. Sedimentology, 43: 279-293.
[19] Owen G.2003. Load structures: gravity-driven sediment mobilization in the shallow subsurface.Geological Society,London,Special Publications, 216(1): 21-34.