Acid-insoluble residue/carbonate content of the Upper Cretaceous Niobrara Formation, Berthoud field, Denver basin, Colorado
Subtitle: a key factor for understanding natural fracturing in chalks?
By: by Richard M. Pollastro.
Contributors: Geological Survey (U.S.)
Series: Open-file report -- 91-330.; U.S. Geological Survey open-file report -- 91-330.
Publisher: Dept. of the Interior, U.S. Geological Survey; [Books and Open-File Reports Section, distributor
Published: 1991
Place of publication: [Denver CO]
Language: eng
Format: Microform
Subjects: Geology, Stratigraphic -- Cretaceous.; Formations (Geology) -- Colorado.; Carbonates.
Other titles: Acid insoluble residue carbonate content of the Upper Cretaceous Niobrara Formation, Berthoud field, Denver basin, Colorado.
Notes: Distributed to depository libraries in microfiche.

Shipping list no.: 92-1200-M.

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1991] 1 microfiche.