La Porte City chert - a devonian subsurface formation in central Iowa
By: by Mary Combs Parker.
Series: Report of investigations -- 4.; Report of investigations (Iowa Geological Survey) -- no. 4.
Publisher: Iowa Geological Survey
Published: 1967
Place of publication: Iowa City
Language: eng
Number of pages: 12
Subjects: Chert -- Iowa.; Geology, Stratigraphic -- Devonian.
Notes: Includes bibliographical references (p. 12).