Magnetometer surveys during 1941,
Tullis, Edward Langdon, 1908-
Magnetometer surveys during 1941, by Edward L. Tullis. - Vermillion, S.D., University of South Dakota, 1942. - 40 p. illus. - South Dakota. State Geological Survey. Report of investigations, no. 42 . - Report of investigations (South Dakota Geological Survey) ; no. 42. .
At head of title: State of South Dakota, Harlan J. Bushfield, Governor. State Geological Survey, E. P. Rothrock, State Geologist. Reproduced from type-written copy.
"References": p. 30.
gs 42000164
Geomagnetism--South Dakota.
Prospecting.
Petroleum--Geology.
QC825.1.U8 / S84
Magnetometer surveys during 1941, by Edward L. Tullis. - Vermillion, S.D., University of South Dakota, 1942. - 40 p. illus. - South Dakota. State Geological Survey. Report of investigations, no. 42 . - Report of investigations (South Dakota Geological Survey) ; no. 42. .
At head of title: State of South Dakota, Harlan J. Bushfield, Governor. State Geological Survey, E. P. Rothrock, State Geologist. Reproduced from type-written copy.
"References": p. 30.
gs 42000164
Geomagnetism--South Dakota.
Prospecting.
Petroleum--Geology.
QC825.1.U8 / S84