Geology and Minerals
The geology of the West Coast of New Zealand's South Island is divided in two by the Alpine Fault, which runs through the region in a north–south direction. To the west of the fault, Paleozoic basement rocks are interluded by plutones and both are unconformably covered in a sedimentary sequence. To the east of the Alpine Fault are the Mesozoic Alpine Schist and Greywacke of the Southern Alps. There are numerous active faults throughout the region.
Intra-volcanic sedimentary rock in North Ethiopia.
Conglomerate (geology).
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