Transcontinental geophysical survey (35⁰-39⁰ N) magnetic and bathymetric map from 74⁰ to 87⁰ W longitude /

Bibliographic Details
Main Author:	Zietz, Isidore, 1919-
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Kirby, John R., Jr, Stockard, H. P.
Format:	Government Document Map
Language:	English
Published:	Washington, D.C. : The Survey, 1968.
Series:	Miscellaneous geologic investigations ; map I-535-A.
Subjects:	Geomagnetism > Kentucky > Maps. Geomagnetism > Tennessee > Maps. Geomagnetism > North Carolina > Maps. Geomagnetism > Virginia > Maps. Geomagnetism > West Virginia > Maps.

Description
Item Description:	Index map shown on sheet. Magnetic contours shown in hundreds of gammas. "A contribution to the Upper Mantle project." Cartographic material.
Physical Description:	1 map ; 155 x 66 cm., folded in envelope 30 x 24 cm.