The greyish green gritstone had undergone the action of deep-seated reducing heat fluid during its rock-forming process.

灰绿色粗砂岩在成岩过程中经历了深部还原性热流体的作用。

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The greyish green gritstone had undergone the action of deep-seated reducing heat fluid during its rock-forming process.

灰绿色粗砂岩在成岩过程中经历了深部还原性热流体的作用。

youdao