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Giant sublacustrine landslide in the Cretaceous Songliao Basin, NE China

文献类型：期刊论文

作者Pan, Shuxin1,3; Liu, Caiyan1,3; Li, Xiangbo1,3; Liang, Sujuan1,3; Chen, Qilin1,3; Zhang, Wenting1,3; Zhang, Shuncun2
刊名BASIN RESEARCH
出版日期2019-12-01
卷号31期号:6页码:1066-1082
关键词sublacustrine landslide the Cretaceous the Nengjiang Formation the Songliao Basin
ISSN号0950-091X
DOI10.1111/bre.12357
英文摘要Mass failure deposits in lacustrine settings are some of the most understudied facies associations in the ancient or modern rock record. We integrated seismic data and well logs to investigate the external morphology, internal architecture and deformation and reservoir distribution of the sublacustrine landslides in the Cretaceous Nengjiang Formation of the Songliao Basin (SLB). A large-scale sublacustrine landslide, named the Qi-Jia sublacustrine landslide (QJSL), has been identified in the Nengjiang Formation of the SLB. The QJSL is currently the largest known sublacustrine landslide in the world. This landslide covers an area that exceeds 300 km(2), with an estimated volume of 30 km(3). Seismic imaging and mapping reveal that the QJSL can be recognized by several distinguishing seismic characteristics: discontinuous and internal chaotic seismic facies, compressional structures in the downslope region, irregular top and basal surfaces and erosional grooves in basal shear surfaces. The QJSL is 20-200 m thick, and is composed of a succession of fine-grained deposits. Sandy layers are present but sparse and thinner than 16 m, and form reservoirs of the petroleum discoveries in this area. Our analyses show that the mechanism that triggered the collapse of the QJSL is attributed to rapid deposition and deltaic progradation. This study demonstrates that sand-rich sublacustrine landslides formed at delta front slope can serve as conventional reservoirs in the lake centre, and provide a new target for subaqueous hydrocarbon exploration and development.
WOS关键词MASS-TRANSPORT COMPLEXES ; SUBMARINE LANDSLIDES ; SEISMIC INTERPRETATION ; NORTHEAST CHINA ; EVOLUTION ; DEPOSITS ; LAKE ; EXAMPLES ; SYSTEM ; TSUNAMI
资助项目National Natural Science Foundation of China[41872116] ; National Natural Science Foundation of China[41772099]
WOS研究方向Geology
语种英语
WOS记录号WOS:000495163000003
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/95771]  
专题地质与地球物理研究所_兰州油气中心
通讯作者Pan, Shuxin
作者单位1.PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou, Gansu, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Lanzhou, Gansu, Peoples R China
3.CNPC, Key Lab Reservoir Descript, Lanzhou, Gansu, Peoples R China
推荐引用方式
GB/T 7714		 Pan, Shuxin,Liu, Caiyan,Li, Xiangbo,et al. Giant sublacustrine landslide in the Cretaceous Songliao Basin, NE China[J]. BASIN RESEARCH,2019,31(6):1066-1082.
APA Pan, Shuxin.,Liu, Caiyan.,Li, Xiangbo.,Liang, Sujuan.,Chen, Qilin.,...&Zhang, Shuncun.(2019).Giant sublacustrine landslide in the Cretaceous Songliao Basin, NE China.BASIN RESEARCH,31(6),1066-1082.
MLA Pan, Shuxin,et al."Giant sublacustrine landslide in the Cretaceous Songliao Basin, NE China".BASIN RESEARCH 31.6(2019):1066-1082.

入库方式： OAI收割

来源：地质与地球物理研究所

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