简答题 翻译：Traps of this type were formed after the deposition of the reservoir rock by erosion and/or alteration of a portion of the reservoir rock through solution or chemical replacement.

【参考答案】

这典型的圈闭，通过蚀变作用或化学的交替作用，在油藏岩石沉积物受到侵蚀作用和/或交替作用形成的。