Chart showing identification of oil shale and trona beds and their geophysical log responses in the Union Pacific Railroad Company El Paso Corehole no. 44-3, Eocene Green River Formation, southwest Wyoming
|Main Author:||Geological Survey (U.S.)|
|Other Authors:||Roehler, Henry W.|
Reston, Va. : Denver, CO :
The Survey ; For sale by Map Distribution,
1 section ; on sheet 137 x 101 cm., folded in envelope 30 x 24 cm.
Miscellaneous field studies ;