305-pp10 - Haywick Test One Results A= 3 B =14 C=9 Average...

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1 Haywick Test One Results A= 3 B =14 C = 9 Average = 82.7 GY 305: Geophysics GY 305: Geophysics Lecture 10: Lecture 10: Fence Post Diagrams Fence Post Diagrams UNIVERSITY OF SOUTH ALABAMA Isopach and TOF Maps Last Time Last Time •What they are •Examples of isopach and TOF maps •How to make them Isopach: A contour line joining points of equal thickness in a rock layer. Isopach Maps Isopach Maps •can be done on surface exposures or subsurface strata •should reflect true thickness (not estimated; use real data) •isopach maps follow all normal rules for maps in general TOF Maps : As the names implies, a map showing the depth from the surface to the formation top. •these maps are usually corrected for surface topography •consequently, they reflect original depositional topography Basic formation thickness Isopach Maps Isopach Maps ht p:/ www.kgs.ku.edu/Publications/Bul etins/Sub6/Prather/index.html Top of Formation Maps Top of Formation Maps ht p:/ pubs.usgs.gov/dds/dds-033/USGS_3D/ssx_gif/ssxiso.gif
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305-pp10 - Haywick Test One Results A= 3 B =14 C=9 Average...

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