Intrusion of basalt into frozen sediments and generation of Coherent-Margined Volcaniclastic Dikes (CMVDs)

► First description of coherent margined volcaniclastic dikes (CMVDs). ► A discussion of the interaction of basaltic dikes and ice-cemented host sediments. ► Similar dikes should be found in glacial environments on earth and Mars. ► Glaciovolcanic heat transfer models may need to include ice-cemented sediments. ► Dike infills represent non-explosive mixing of magma and water.