Preliminary quaternary geologic maps of Santa Clara Valley, Santa Clara, Alameda, and San Mateo counties, California: A digital database
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资源简介：
This digital map database, which is compiled from previously
unpublished and open-filed U.S. Geol. Survey reports (Wesling and
Helley, 1989), represents the general distribution and identity of
Quaternary deposits in eight 7.5 minute quadrangles in the southern
San Francisco Bay region, California.
创建时间：
2016-10-29
