One, the Texas Gulf Coast, is in the Gulf Coast geosyncline. 得克萨斯海湾有一海岸在墨西哥湾海岸地槽中。
The Hongtaiping polymetallic deposit lies in the Permian marine volcanic rocks, Palaeozoic geosyncline and the transitional belt of the clastic sedimentrary rocks in the Yanbian area. 红太平多金属矿床产于延边古生代地槽区二叠系海相火山岩中及其与碎屑沉积岩的过渡带上。
There is a close relationship between occurrence of nonmetallic minerals and tectonic evolution of geosyncline, platform and diwa( geodepression) on the western margin of the Dongting diwa. 洞庭地洼西缘非金属矿产的产出特征与地槽、台及地洼构造的演化具有密切的关系.地洼构造对区内大部分非金属矿产的形成和保存是极为有利的。