Preproposal Illinois Basin ultradeep drillhole
By: Morris W. Leighton, chief, J. James Eidel, principal geologist.
Contributors: Eidel, J. James.
Publisher: Illinois State Geological Survey
Published: 1987
Place of publication: Champaign, Ill. (615 E. Peabody Dr., Champaign 61820)
Language: eng
Number of pages: 78
Subjects: Earth -- Crust