Deep-water gravity flow deposits in a lacustrine rift basin and their oil and gas geological significance in eastern China
CAO Yingchang1,*(
),JIN Jiehua1,LIU Haining1,2,YANG Tian3,LIU Keyu1,WANG Yanzhong1,WANG Jian1,LIANG Chao1
),JIN Jiehua1,LIU Haining1,2,YANG Tian3,LIU Keyu1,WANG Yanzhong1,WANG Jian1,LIANG Chao1
.
Fig. 4.. Hybrid event beds in the lacustrine rift basin in the Weixinan sag of Beibuwan Basin. The yellow dotted line is the boundary of depositional unit; H1-H5 is the depositional unit number of hybrid event beds, modified from [19].
(a) WZ11-7-1, 2508.63-2509.16 m, four-layer structure, with muddy clasts in the upper part; (b) WZ11-7-1, 2512.74- 2513.15 m, three-layer structure, with muddy clasts in the upper part; (c) WZ11-7-4, 2171.72-2172.09 m, hybrid event bed in band structure; (d) WZ11-7-1, 2521.61-2521.95 m, two-layer structure, with muddy clasts in the upper part.
