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