Geological and topographical maps, their interpretation and use, a handbook for the geologist and civil engineer (1911)
Dwerryhouse, Arthur Richard, 1867- · London, E. Arnold · leaf 46
ndthrust planes. (d) Isoclinal folds arc those in which the two limbsare crushed close together in such a manner that the bedson the two flanks of a fold are parallel to each other, and THE STRUCTURE OF THE EARTHS CRUST 33 the appearance in section is as in Fig. 13, a and b.The isoclines may be… … Fig. 12.— Recumbent Fold. very well-marked characters, it is in consequence almostimpossible to detect this repetition in the field. Types of fracture other than thrust planes are pro-duced by the action of gravity upon masses of the earthscrust detached from the surrounding blocks by shrinkage
Cartography · Geology · Topographical drawing
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