weathering-crust-type rare-earth deposit 风化壳型稀土矿床
weathering crust karst type 风化壳岩溶型
Latosol-type weathering crust 砖红土型风化壳
type of weathering crust 风化壳类型
The reservoir type is Ordovician weathering crust in the Lower Paleozoic, and the main gas layer is in the fifth member of Majiagou Formation.
储集层类型为下古生界奥陶系古风化壳型，其主力含气层为马家沟组第五段。
The formation of karst? Cavern type carbonate oil reservoirs in lower Ordovician of 4 area in Tahe oilfield is related to weathering? Denudation of fossil weathering crust.
塔河油田4区下奥陶统碳酸盐岩岩溶缝洞型油藏的形成与古风化壳的风化剥蚀有关。
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