D
▪ décollement folds ▪ deformation ▪ diapir ▪ diatreme ▪ dikes, dikelets (aplite dikes, pegmatite dikes) ▪ dip ▪ dip direction ▪ direction (dip, plunge, strike) ▪ disconformity ▪ discordant ▪ duplex ▪ dykes ▪
Definitions and images to illustrate geological terms, links to images and website articles