The data of chemical composition of sediments indicate that the tectonic background of the turbidites is passive continental margin environment.

碎屑物常量化学成分投点表明，其形成时构造背景属被动大陆边缘。

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There is a barrier between reservoir and atmospheric water of basin margin forming reducing environment with low sulphate which is favorable to methane bacteria activity.

储层与盆地边缘大气水渗滤带隔绝，形成了低硫酸盐的还原环境，有利于甲烷菌活动。

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The sediment environment was in the passive continental margin.

沉积环境为被动大陆边缘。

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These burdens are occurring amid tepid loan growth and in a low interest rate environment that contributes to net interest margin contraction.

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Since stocks typically underperform in a deflationary environment, which leaves little room for margin expansion, Credit Suisse recommends cash and short-dated bonds.

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Despite this difficult environment, we were able to meet our expectations for margin through disciplined expense management.

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