EarthWorks Geospatial Catalog

Geological map south of Sado Island [cartographic material] / Geological Survey of Japan ; offshore geological map by Yukinobu Okamura and Mikio Satoh in 1993 ; onshore geological map by Keiji Takeuchi in 1993 ; bathymetric contours by Jun'ichi Miyazaki in 1993.

Relief shown by contours and spot heights. Depths shown by isolines. Title of guide : "Explanatory notes of geological map south of Sado Island, 1:200,000 / Yukinobu Okamura-- [et al.]". Includes bibliography and index map.
Geological Survey of Japan
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