As Indiana’s primary geoscience repository, a central part of the mission of the Indiana Geological and Water Survey (IGWS) is to collect, archive, and provide access to geological samples. Ever-evolving societal needs and technological advances guarantee the utility of Indiana cores in perpetuity. The IGWS preserves more than 1,000 bedrock cores that total over 150,000 linear feet of cored rock, representing more than 250,000 feet of drilling. Indiana’s energy, mineral, and water resources are documented in these archived samples of the state’s subsurface. The expense of recovering geologic samples at depths of hundreds to thousands of feet below the surface means that many of the samples in this collection are unique and valuable. Given modern drilling costs, the replacement value of this collection is in the millions of dollars.This map features important reference information about each core in the IGWS bedrock core archive. These data include the spatial location, IGWS reference number, total depth below the land surface captured by the core, top bedrock unit penetrated and depth to the top of that unit, and bottom bedrock unit penetrated and depth to the bottom of that unit. Most cores in this collection preserve a continuous stratigraphic succession between the bottom and top formations.
McLaughlin, P. I., Baker, M., and Johnson, M. R., 2017, Map of Indiana showing bedrock cores archived by the Indiana Geological and Water Survey: Indiana Geological and Water Survey Miscellaneous Map 110, scale 1:500,000.
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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.