Abstract

Because of its geologic association with the 1.1 billion-year-old Midcontinent Rift, the area encompassing the largely unexplored Manhattan 1° × 2° Quadrangle, has the potential to host major ore deposits and possible hydrocarbon accumulations. Depth to the Precambrian basement ranges from about 700 feet in the northeast on top of the Nemaha Uplift, the shallowest in all of Kansas, to more than 4,000 feet in the southwest in the deeper parts of the Salina Basin.

The aim of the 4-year-long multidisciplinary study is to map the geology and assess the resources of the area. New geologic maps, reevaluation of existing maps, and digital compilation of geologic information for all parts of the 17 counties located within the quadrangle is a major component. Surface and subsurface structural studies, paying particular attention to neotectonism in the large area underlain by younger glacial materials is another important aspect. Reevaluation of existing and new aeromagnetic and gravity data as well as geochemistry of available Precambrian rock samples is an integral part of this study. The results of these studies will be used to evaluate the mineral and resource potential and to identify areas that may be favorable for future exploration of new resources.

All digital information obtained or developed during the course of this project will be available on the Internet as well as in project reports and publications.