Methane, carbon dioxide, oxygen, and nitrogen in soil gas overlying coal beds of the Upper Cretaceous Fruitland Formation in the San Juan Basin, La Plata County, southwestern Colorado
By: by James R. Herring ... [et al.]
Contributors: Herring, J. R.; Geological Survey (U.S.)
Series: Open-file report -- 94-295; U.S. Geological Survey open-file report -- 94-295
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey; Open-File Reports Section, distributor]
Published: 1994
Place of publication: [Denver, Colo.?]; [Denver, Colo
Language: eng
Format: Microform
Subjects: Coalbed methane -- Colorado -- La Plata County; Soil air -- Colorado -- La Plata County
Notes: Cover title

Distributed to depository libraries in microfiche

Shipping list no.: 95-0614-M

Includes bibliographical references (leaf 6)

Microfiche. [Denver, Colo. : U.S. Geological Survey, 1995?] 1 microfiche : negative