diapiric


di·a·pir

D0199300 (dī′ə-pîr′)n. A geological structure formed when a mass of material of high plasticity and low density, such as salt, gypsum, or magma, pushes upward into overlying strata.
[French, from Greek diapeirein, to push through : dia-, dia- + peirein, to pierce; see per- in Indo-European roots.]
di′a·pir′ic adj.

diapiric

(ˌdaɪəˈpɪərɪk) adjof or pertaining to a diapir; of the nature of a diapir