Oil & Gas Geology ›› 2021, Vol. 42 ›› Issue (6): 1307-1320.doi: 10.11743/ogg20210606
• Petroleum Geology • Previous Articles Next Articles
Qingmin Dong1,2(), Zhonggui Hu3, Shiyue Chen1,2,*(), Shilin Li4, Jialan Cai4, Yixin Zhu4, Yuying Zhang5
Received:
2020-05-27
Online:
2021-12-28
Published:
2021-12-16
Contact:
Shiyue Chen
E-mail:416648529@qq.com;chenshiyue@vip.sina.com
CLC Number:
Qingmin Dong, Zhonggui Hu, Shiyue Chen, Shilin Li, Jialan Cai, Yixin Zhu, Yuying Zhang. Isotope geochemical responses and their geological significance of Changxing-Feixianguan Formation carbonates, northeastern Sichuan Basin[J]. Oil & Gas Geology, 2021, 42(6): 1307-1320.
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Table 1
Alteration evaluation of carbonate rock samples from the Changxing-Feixianguan Formations, northeastern Sichuan Basin"
研究剖面 | 层位 | 样品总数/个 | δ18O < -10 ‰ | Mn/Sr < 2 | |||
剔除样品数/个 | 剔除率/% | 剔除样品数/个 | 剔除率/% | ||||
盘龙洞 | 长兴组 | 51 | 0 | 0 | 5 | 9.80 | |
渡口 | 长兴组 | 33 | 0 | 0 | 3 | 9.10 | |
飞仙关组 | 38 | 0 | 0 | 3 | 7.90 | ||
羊鼓洞 | 长兴组 | 30 | 0 | 0 | 3 | 10.00 | |
飞仙关组 | 30 | 7 | 23.30 | 6 | 20.00 | ||
云阳沙市 | 长兴组 | 18 | 0 | 0 | 1 | 5.60 | |
飞仙关组 | 41 | 0 | 0 | 3 | 7.30 | ||
长兴组剔除率/% | 4.98 | ||||||
飞仙关组剔除率/% | 6.22 |
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