http://www.geology.com所谓地下盐丘,是指地下岩盐、石膏或粘土等低粘性易流动的物质,在构造力或浮力的作用下向上流动,刺穿或部分刺穿上覆岩层,使上覆岩层拱起而形成的一种底辟构造。盐丘往往形成于沉积盆地中,巨厚层状盐类物质被上覆年轻地层所覆盖。若条件适合,盐丘可从岩盐地层向上拱起数千英尺,如图所示。 The so-called underground salt dome, refers to the underground rock salt, gypsum or clay and other low-viscosity easy-flowing substances, uplift under the action of buoyancy or buoyancy, piercing or partially piercing the overburden , The overlying strata arched and formed a diapir structure. Salt domes are often formed in sedimentary basins, where the thick, layered salts are covered by overlying young formations. If conditions permit, the salt dome can rise thousands of feet up from the salt rock formation, as shown.