Tuesday, April 3, 2012

Isopach

An isopach map illustrates the variation of thickness within a certain unit. They are contour lines of equal thickness in a geographic area. This image is of the rocks at the top of the Lansing Group in the Victory field in Kansas. It shows the differences in rock levels relative to the sea level. These types of maps are made by subtracting the depth in hole at the top of the rock from the depth of the base of the rock. 

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