单词 | Old Red Sandstone |
释义 | Old Red Sandstonenoun [mass noun] Geology A series of sedimentary rocks, chiefly red sandstones, belonging to the Devonian system of NW Europe.However, the change in structural dip could reflect synsedimentary tectonics (and hence an intrabasinal unconformity developed entirely within an Old Red Sandstone succession), and the dykes may not be syndepositional....
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