One of the mysteries of the English language finally explained.
(of rock) appear or be exposed at the surface of the earth.
- ‘Volcanic rocks that crop out in the mine area are part of the Portage Lake Volcanics and consist of thin lava flows and interbedded sedimentary rocks.’
- ‘The nature of the Lower Palaeozoic rocks which crop out in the peninsula therefore hold important evidence for the Caledonian evolution of the area.’
- ‘Basement rocks crop out along the entire La Hague peninsula in a number of fault-bounded blocks and as thin layers separated by intrusive Cadomian igneous bodies.’
- ‘The hinges of folded debris layers crop out on the glacier surface as flow-parallel medial moraines, with axes dipping gently up-glacier.’
- ‘The Hammamat Group is a sequence of immature, clastic sedimentary rocks that crop out sporadically throughout the central and northern segments of the Eastern Desert of Egypt.’
- ‘Mafic volcanic rocks on this trend crop out on eastern King Island, with exposures including dykes, pillow lavas, volcaniclastic rocks and dolomites.’
- ‘The Dzhabyk batholith crops out along the entire surface trace of the profile.’
- ‘The Mesozoic rocks crop out only in the Zhaigang and Zhainan areas in the southeastern part of the county.’
- ‘In contrast, depositional landscapes predominate in southern Alberta and Saskatchewan, where soft sedimentary rocks crop out near the southern limit of the ice sheet.’
- ‘At the base of the erosional hollow, an inlier of Jurassic rocks crops out below the late Cimmerian unconformity.’
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