Definitions for "Diapir"
A dome in which the overlying rocks have been ruptured by the squeezing out of plastic (malleable) material at the center of the dome.
dome, core, or anticlinal fold of plastic or igneous material which has been squeezed upward to pierce overlying rocks. Common diapirs in sedimentary strata are domes of salt or shale.
a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata