ARC/INFO export files Description of coverage at_sp-py.e00 Quaternary deposits of the Altamont quadrangle bh_sp-py.e00 Byron Hot Springs quadrangle cf_sp-py.e00 Clifton Court Forebay quadrangle cm_sp-py.e00 Cedar Mtn quadrangle cr_sp-py.e00 Calaveras Reservoir quadrangle du_sp-py.e00 Dublin quadrangle em_sp-py.e00 Eylar Mtn quadrangle ha_sp-py.e00 Hayward quadrangle hp_sp-py.e00 Hunters Point quadrangle lc_sp-py.e00 La Costa Valley quadrangle lt_sp-py.e00 Las Trampas Ridge quadrangle lv_sp-py.e00 Livermore quadrangle mb_sp-py.e00 Mt Boardman quadrangle md_sp-py.e00 Mt Day quadrangle mp_sp-py.e00 Milpitas quadrangle ms_sp-py.e00 Mendenhall Springs quadrangle mv_sp-py.e00 Mountain View quadrangle mw_sp-py.e00 Midway quadrangle ne_sp-py.e00 Newark quadrangle ni_sp-py.e00 Niles quadrangle oe_sp-py.e00 Oakland East quadrangle ow_sp-py.e00 Oakland West quadrangle ri_sp-py.e00 Richmond quadrangle rp_sp-py.e00 Redwood Point quadrangle sl_sp-py.e00 San Leandro quadrangle ta_sp-py.e00 Tassajara quadrangle alq_quad.e00 Index map of quadrangles in Alameda County alq_corr.e00 Correlation table for the units in this map database al_dr-sp.e00 Drainage base map al_cu-sp.e00 Cultural base map al_topo-sp.e00 Topographic contours base map
Carl M. Wentworth, Todd T. Fitzgibbon, and Geoffrey A. Phelps graciously provided assistance with Alacarte and ARC/INFO. The scanning and initial editing of the digital maps of some of the quadrangles was done by the following: Heather Schoonover (Midway, Newark), Marjorie Lucks (Livermore), Scott Graham (Altamont), Lisa Gerhardt (San Leandro), Jennifer Tarsoly (Hayward), Carolyn Randolph (Hunters Point, Redwood Point), Molly Burgett (Oakland West), Michelle Roberts (Niles, La Costa Valley). Earl E. Brabb provided much helpful advice and feedback, as well as arranging for material support for the project.
To provide to the public a digital geologic map database of the Alameda county and parts of Contra Costa, Santa Clara, San Mateo, San Francisco, Stanislaus, and San Joaquin counties, California.
Are there legal restrictions on access or use of the data?
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.This database, identified as "Quaternary geology of Alameda County, and parts of Contra Costa, Santa Clara, San Mateo, San Francisco, Stanislaus, and San Joaquin Counties, California: A digital database," has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
|Data format:||Quaternary geologic units and base map information in format ARCE (version 7.x) Size: 19.5|