Interpretive Stratigraphic Contouring Assignment. Attached are a base map and a

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Interpretive Stratigraphic Contouring Assignment.

Attached are a base map and a table of subsurface data for your interpretive stratigraphie contouring problem. First, locate the wells on the base map. Then, post the thickness data next to the appropriate well. Draw an interpretive isopach map of the Boot Hill Sandstone Member of the Dead Man's Gulch Formation. Use a 20-ft contour interval. In order to draw an interpretive isopach map you need to know something about the genesis of the Boot Hill Member and you also need to know something about the regional paleogeography during Boot Hill time. The Boot Hill member was deposited as a channel-fill sand on a "birdfoot"-type delta. Sand deposition was confined mostly, but not entirely, to distributary channels on the delta. Regional paleogeography indicates a sedimentary source area and region of nonmarine deposition to the west of the area to be mapped. The paleobathymetric center of the basin was located east of the study area. You may find the book by Busch (1974) useful in giving you ideas on how to contour this map. REFERENCE: Busch, D.A., 1974, Stratigraphic traps in sandstones - exploration techniques: American Association of Petroleum Geologists, Memoir 21, 174 pp.

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