Triassic Leikoupo Salt Distribution and Evolution in Sichuan Basin

Abstract

Abstract: Middle Triassic Leikoupo group is one of the earliest formations where nature gas and salt brine were exploited
in Sichuan Basin. The large number of drilling data from Leikoupo indicate that the period of the Leikoupo salt is T2l2
3 and T2l2 4，respectively. Eastern and southern basin due to the effect of palaeohigh，the ancient salt rock strata have been eroded and
hard to conserve，today，the salt formation mainly exist in the Kaijiang palaeohigh and Luzhou west palaeohigh，as well as
Tianjing mountain. Indo-Chinese movement plays an important role in the horizontal migration of salt rock of Leikoupo group.
According to statistical data of rock salt in different periods，two salt basins in the plane display a feature of westward migration
and superimposition. An examlpe of such feature is Well Gongshan 1 on the two phases of rock salt in middle Sichuan Basin.

Key words: T2l23 period, T2l2 4 period, migrate, super in position, Sichuan Basin

Huang Dong;Yang Guang;Yang Tianquan;Wang Hua;Shi Xuewen. Triassic Leikoupo Salt Distribution and Evolution in Sichuan Basin[J]. 西南石油大学学报(自然科学版), 2013, 35(2): 37-42.

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Triassic Leikoupo Salt Distribution and Evolution in Sichuan Basin

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