This preliminary geologic map of the Mooresville East 7.5-minute quadrangle is an interim geologic map product prepared to document progress accomplished during the first year of a multiyear project to map bedrock geology in Morgan County, Indiana. The Mooresville East quadrangle is located in the northeast corner of the county (see index map below) where the oldest rock units found in the county subcrop in paleovalleys filled with glacial outwash deposits or crop out in the hills adjacent to paleovalleys or in modern stream valleys. All the outcropping and subcropping rocks in the map area, with the exception of a small area of subcropping Rockford Limestone (Mississippian) and uppermost New Albany Shale (Mississippian and Devonian) in the northeast corner of the map area, are assigned to the lower two formations of the Borden Group, in descending order, the Spickert Knob Formation and New Providence Shale. The New Providence Shale is divided into two informal units based on the occurrence of conspicuous reddish shale that occurs at the base of the New Providence Shale. This shale is not distinct on geophysical logs but is commonly recorded by water and petroleum well drillers and is remarkably persistent throughout the map area. The map units have a consistent southwest dip of approximately 25 ft per mile throughout the map area. The relationship between the bedrock units shown on the map and the overlying, predominantly glacial unconsolidated deposits is complex. Bedrock units are abruptly truncated within buried paleovalleys as illustrated in the accompanying stratigraphic cross section.
Hasenmueller, W. A., Rupp, R. F., and McLaughlin, P. L., 2016, Preliminary map showing bedrock geology of the Mooresville East 7.5-minute quadrangle, Indiana: Indiana Geological Survey Open-File Study 16-01, scale 1:24,000.
You may also like:
Can't find what you're looking for? Feel free to contact us directly:
Publication Sales Office
Indiana Geological and Water Survey
420 N. Walnut St.
Bloomington, IN 47404
IGS Return Policy
All sales are final. Materials may not be returned after they have been accepted by the customer. Any discrepencies in mail orders must be reported to IGWS within 10 days of receipt of order.
The Indiana Geological and Water Survey will refund the purchase price and sales tax of products if returned with the original sales receipt within 10 days of receipt of order. Refunds will be issued with the same method of payment as indicated on the original receipt except for cash purchases, which will be refunded by check. Items must be returned in the same condition as purchased. Refunds on digital products and services are not allowed, except for defective media such as CD-ROMs, flash drives, and so on. The customer is responsible for paying shipping costs to return items.