GEO 303 Chapter Notes - Chapter 19: Continental Crust, Cenozoic, Paleozoic
24 Dec 2017
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Document Summary
Show the outcrop patterns of rock bodies (formations) and geologic structures (faults, folds) on the land surface. showing rock units in a column arranged by geologic age. Geologic maps are often drawn on a . Interfaces between adjacent rock units (formations) shown as lines on geologic maps. Between adjacent sedimentary strata, lava flows, etc. , or their metamorphic equivalents. Geologic contacts between unfolded horizontal strata follow contour lines. Between rock units that have strike-slip or dip-slip displacement. Between host rocks and an invading igneous body. Strike, dip, and other map symbols indicate structures (ex. faults, folds) on geologic. Look for omission or repetition of beds. For example, this map shows repetition of beds across a normal fault. Mirrored repetition of beds may indicate the presence of a fold. 5 cases : determine the dip of the bed. Rule of vs : the pattern created where a bed crops out in a stream channel allows us to.
