矿床产于中川岩体东外接触带内，处于中石炭统与中泥盆统的接触带附近。
The deposit occurred in the exocontact of east Zhongchuan rock body, and is near the stratigraphic contact belt between Middle Carboniferous and Middle Devonian.
盆内延长组油藏为岩性圈闭油藏，严格受沉积相控制。
In the basin Yanchang Formation is a lithologic encirclement deposit, and is strictly controlled by sedimentary facies.
盆内延长组油藏为岩性圈闭油藏，严格受沉积相控制。
In the basin Yanchang Formation is a lithologic encirclement deposit, and is strictly controlled by sedimentary facies.
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