Figure G-7 consists of three geologic maps, each of which has two topographic profiles below it. For

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Figure G-7 consists of three geologic maps, each of which has two topographic profiles below it. For each map there are at least two possible interpretations for the contact. Sketch two geologically plausible structure sections for each map, as was done in Fig. 3.12. In the space provided below each set of diagrams, indicate which of your two structure sections you consider most likely to be correct, and briefly give your reasons.

These structure sections should be quick sketches that show relationships between adjacent rock units. You do not need to be concernedwith each apparent dip; merely approximate the dips freehand.X VA A A 743 37 L7 A L 37 A TAL 3 51 L A 7 L L 7 L 27 |-70 7 7 A gabbro, LVA LVA A. rV c T V LI Formation M

a X b X  7 PET gabbra PET gabbro Formation M Formation M -X' Fig. 3.12 Geologic map with two alternative

X. Formation A 150 -38 +20 diorite -X' 123 +11 204 84 Formation Y 45A 40A 57A Formation Z X' X 15y 19y

a -X' b X. X' X' X X-

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Related Book For  answer-question

Structural Analysis And Synthesis A Laboratory Course In Structural Geology

ISBN: 9781405116527

3rd Edition

Authors: Stephen M. Rowland, Ernest M. Duebendorfer, Ilsa M. Schiefelbein

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