limestone neptunian dykes
英
美
- 沉积灰岩岩墙
双语例句
- There are many silty dykes in peritidal silty muddy shales of the lower part of the Paleoproterozoic Chuanlinggou Formation at Jixian section ill Tianjin.
摘要在天津蓟县剖面古元古界串岭沟组下部的环潮坪相粉砂质泥页岩细粒沉积中，发育许多粉砂岩岩墙。
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