The magnetic field of the earth, 1990 /
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| Other Authors: | |
| Format: | Government Document Map |
| Language: | English |
| Published: |
Reston, Va. :
The Survey ;
1993.
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| Series: | Geophysical investigations (Geological Survey (U.S.)) ;
GP-1004. |
| Subjects: |
| Item Description: | Supersedes Peddie and Zunde, 1988. "Five world charts showing ... earth's magnetic field at mean sea level at the beginning of 1990." Includes 2 ancillary maps of the polar regions. Scale 1:60,192,000 (along meridians only). Cartographic material. |
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| Physical Description: | 5 maps : color ; 63 x 100 cm., on sheets 86 x 122 cm. |
| Bibliography: | Includes bibliographical references. |