There appear to be two end members on how to create geologic map polygons. One is to create a single layer that contains separate polygons for every formation/ outcrop/ zone (no matter the size). The other is to create a series of layers that contain polygons of various sizes. One layer would contain broad/large scale polygons while other layers would contain detailed polygons that would appear to be within the larger polygon [but not digitized as an island or lake]. I have seen both styles used.
Is one method technically better than the other or is the method choice dependent on what the end use will be? what do the members of this list prefer? sandy figuers norfleet consultants
