George J. Saucedo, David R. Bedford, Gary L. Raines, Robert J. Miller, and Carl M. Wentworth 2000 Unknown Version 2.0 CD-ROM 2000-007 Sacramento, California Department of Conservation, Division of Mines and Geology Jennings (1977) should be cited when referring to contents of this database. See Cross Reference below for proper citation. ca-geol.txthttp://www.consrv.ca.gov/index/ The digital database contains the geologic units and faults as shown on the Geologic Map of California by Charles W. Jennings published in 1977. The Geologic Map of California presents an overview of the geology and structure of the state. It represents the geologic features that one would find on a visit to any locality in the state. However, the restraints of scale limit the detail that can be shown, but the most important geologic features are portrayed. The distribution of the major rock types and the major structural elements are shown with sufficient detail to be useful for many purposes. To provide a digital database of the Geologic Map of California. This database should be used in conjunction with the published version of the Geologic Map of California (Geologic Data Map No. 2) and An Explanatory Text to Accompany the 1:750,000 Scale Fault and Geologic Maps of California (Bulletin 201) available from the California Department of Conservation, Division of Mines and Geology (DMG) by mail: P.O. Box 2980 Sacramento, CA 95812-2980 or by phone (916) 445-5716. These publications are also available from DMG offices in San Francisco (415) 904-7707 and Los Angeles (213) 239-0878. en 1977 Complete No updates or revisions are anticipated -125 -114.125 42 32.5 None Geologic maps Areal geology Geology Maps MEAR318 None California USA None Dataset must be obtained from the Department of Conservation, Division of Mines and Geology. LICENSE AGREEMENT: ©California Department of Conservation, Division of Mines and Geology, 2000. All rights reserved. No part of this CD-ROM may be reproduced, transmitted, or distributed in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of the Division of Mines and Geology except as follows. Permission is granted to produce plots of all or part of the data under the following conditions: 1) Personal use. 2) For publication in a report in unmodified form; cite on figure or in text as "Reproduced with permission, Division of Mines and Geology, CD-ROM 2000-007 (2000), GIS Data for the Geologic Map of California." 3) For publication in a report in modified form; cite on figure or in text as "Modified from, Division of Mines and Geology, CD-ROM 2000-007 (2000), GIS Data for the Geologic Map of California." George J. Saucedo California Department of Conservation, Division of Mines and Geology Associate Engineering Geologist mailing and physical address

185 Berry Streeet, Suite 210

San Francisco CA 94107-1728 USA (415) 904-7726 (415) 904-7715 gsaucedo@consrv.ca.gov California Department of Conservation, Division of Mines and Geology; U.S. Geological Survey Jennings, C.W. (compiler) 1977 Unknown Geologic Data Map Series No. 2 Sacramento, California California Department of Conservation, Division of Mines and Geology Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800Text File Initial editing was done by U.S. Geological Survey staff. Additional editing and final proofing was done by Division of Mines and Geology staff. The attribute accuracy was tested by overlaying the original mylar on plots derived from the digital database to see that they match. This database is a faithful digital representation of the geologic units, faults, and fold axes as shown on the Geologic Map of California. However, some information, such as the names of geologic features as well as the locations of volcanoes and cinder cones is not shown. Users of this database should be aware of the difference between precision and accuracy. While digital data can be reproduced precisely at any scale, the accuracy of the data remains constant. As the scale is increased from 1:750,000, uncertainty and errors in contact and fault location remain the same. Also the user is cautioned that the faults in this database are not necessarily the same as those depicted on the 1:24,000-scale DMG Earthquake Fault Zone Maps. Faults in the Geologic Map and Fault Activity Map of California Databases Fault locations in the digital databases for the geologic map and the fault activity map of California are similar but not identical. The representation of faults in the digital database for the Geologic Map of California is the same as those of the Fault Map of California, published in 1975 (Jennings, 1985 p.56). Faults depicted on the Fault Activity Map of California and Adjacent Areas, published in 1994, were revised using the results of 20 years of research conducted since the earlier publication. The new map was redrafted and scribed on a new edition of the base map, which is significantly different from the previous version. Although the differences are not readily apparent on the printed versions of the maps, differences, particularly in location, will be obvious if the digital versions of the faults are superimposed. See Division of Mines and Geology Bulletin 201 (Jennings, 1985) and An Explanatory Text to Accompany the Fault Activity Map of California and Adjacent Areas (Jennings, 1994) for more information on the sources of the data. Dataset is consistent with the Geologic Map of California (Jennings, 1977). The dataset contains the geologic units and faults as shown of the Geologic Map of California (Jennings, 1977). It also includes a base map showing the outline of California, county boundaries, cultural features and bathymetry. Topography, which was included on the published map, is not shown. These data were input at the same scale as the published map, 1:750,000 or 1 inch equals approximately 12 miles. The theoretical accuracy of the published map is about 0.012-inch, the width of the fault lines, which is equivalent to 232 meters (760 feet) on the ground. However, plotting and drafting errors can and do significantly increase the uncertainty. For example, a plotting error of a line width at 1:750,000 scale could cause a location error of 464 meters (approximately 1520 feet) on the ground. Jennings, C.W. (compiler) 1977 Unknown Geologic Data Map Series No. 2 Sacramento, California California Department of Conservation, Division of Mines and Geology 750000 stable-base material 1977 publication date 2.5.1.1 This digital database represents a cooperative effort between DMG and the U.S. Geological Survey (USGS). The map was digitized in ARC/INFO from mylar copies of the original publication plates. Gary Raines of the USGS contracted for the scanning and vectorization of the plates and along with Bob Miller and Carl Wentworth (USGS) conducted initial editing of these data. During the process it was discovered that the north and south parts of the map are at slightly different scales. This inconsistency was probably inherited during the preparation of the original base map. The base map used for publication was a composite of the north and south halves of the 1:500,000 scale USGS state map series, photographically reduced to publication scale (1:750,000), and spliced together. Aside from the scale problem it was noted that there were errors in polygon and line attribution as well as omission of the structural data (fold-axes and regional strike and dip symbols) as depicted on the published geologic map. As a result of discussions between DMG and USGS staff it was decided that the best approach would be a systematic edit of the existing digital data using a raster image of the published line work as a guide. An attempt was made to minimize the spatial error in the scanned image before linking the original digital file. This edit was conducted by George Saucedo (DMG) and David Bedford (USGS). Final editing and proofing was done by George Saucedo, David Wagner, and Jennifer Davis of DMG. Unknown George J. Saucedo California Department of Conservation, Division of Mines and Geology Associate Engineering Geologist mailing and physical address

185 Berry Streeet, Suite 210

San Francisco CA 94107-1728 USA (415) 904-7726 (415) 904-7715 gsaucedo@consrv.ca.gov Vector Lambert Conformal Conic 33 45 -120 0 0 0 Coordinate Pair meters North American Datum of 1927 Clarke 1866 6378206 294.9786982 ARC/INFO - The digital database consists of two ARC/INFO coverages. The coverages have been converted into ARC/INFO uncompressed export files (.e00) and must be converted by the user into ARC coverages using the import command. The export files and descriptions are as follows: ca-geol.e00 - Contacts and faults; ca-strc.e00 - Fold axes and dip symbols. There are two additional files associated with the raster base layer: ca-base.tif - California base map in TIFF format; ca-base.tfw - World file for California base map. Field definition terms and contents of the attribute tables are described below. MAPINFO - The digital database consists of six MAPINFO.TAB files representing the geologic and structure coverages and their accompanying tic files. These data have been converted into MAPINFO files from ARC/INFO uncompressed export files (.e00) using ARCLINK software. In addition there is a thematic workspace for displaying unit colors and line attributes. The files and descriptions are as follows: ca-geol_line.tab - Geologic coverage (contacts and faults); ca-geol_poly.tab - Geologic coverage (unit polygons); ca-geol_tic.tab - Geologic coverage (tic locations); ca-strc_line.tab - Structure coverage (fold axes); ca-strc_point.tab - Structure coverage (strike and dip locations); ca-strc_tic.tab - Structure coverage (tic locations); ca-geol_theme.wor - Thematic workspace for displaying unit colors and line attributes. There are two additional files associated with the raster base layer: ca-base.tab - MAPINFO file for displaying TIFF image; ca-base.tif - California base map in TIFF format. Field definition terms and table structure are described below. Auxiliary files - The following files are included for creating full-colored plots: ca-geol.gra - An ARC/INFO graphics file of the complete geologic map and explanation without base at 1:750,000 scale; ca-geol.ps - A PostScript plot file of the complete geologic map and explanation with base at 1:750,000 scale; ca-geol.pdf - A Portable Document Format file of the complete geologic map and explanation with base at 1:750,000 scale. ARC/INFO - Field Definition Terms: ITEM NAME - name of the database field (item); WIDTH - maximum number of digits or characters stored; OUTPUT - output width; TYPE - B-binary integer, F-binary floating point numbers, I-ASCII integer, C-ASCII character string; N.DEC. - number of decimal places maintained for floating point numbers. Contents of the Arc Attribute Tables (CA-GEOL.AAT) - (ITEM NAME, WIDTH, OUTPUT, TYPE, N.DEC, description): FNODE#, 4, 5, B, -, starting node of arc (from node); TNODE#, 4, 5, B, -, ending node of arc (to node); LPOLY#, 4, 5, B, -, polygon to the left of the arc; RPOLY#, 4, 5, B, -, polygon to the right of the arc; LENGTH, 4, 12, F, 3, length of arc in meters; CA-GEOL#, 4, 5, B, -, unique internal control number; CA-GEOL-ID, 4, 5, B, -, unique identification number; LTYPE, 35, 35, C, -, line type; SEL, 1, 1, I, -, user defined field used to save a selected set; SYMB, 3, 3, I, -, user defined field used to save symbol assignments (such as color). Line Types Recorded in the LTYPE Field (CA-GEOL.AAT); contact, approx. located | contact, certain | fault, approx. located | fault, approx. located, queried | fault, certain | fault, concealed | fault, concealed, queried | fault, inferred, queried | map boundary, certain | normal fault, approx. located | normal fault, certain | normal fault, concealed, queried | s.s. fault, l.l., approx. located | s.s. fault, l.l., certain | s.s. fault, l.l., concealed | s.s. fault, l.l., concealed, querie | s.s. fault, r.l., approx. located | s.s. fault, r.l., certain | s.s. fault, r.l., concealed | s.s. fault, r.l., concealed, querie | scratch boundary, certain | thrust fault, approx. located | thrust fault, certain | thrust fault, concealed | water boundary, approx. located | water boundary, certain. Contents of the Polygon Attribute Tables (CA-GEOL.PAT) - (ITEM NAME, WIDTH, OUTPUT, TYPE, N.DEC, description): AREA, 4, 12, F, 3, area of polygon in square meters; PERIMETER, 4, 12, F, 3, length of perimeter in meters; CA-GEOL4#, 4, 5, B, -, unique internal control number; CA-GEOL4-ID, 4, 5, B, -, unique identification number; PTYPE, 35, 35, C, -, unit label; SEL, 1, 1, I, -, user defined field used to save a selected set; SYMB, 3, 3, I, -, user defined field used to save symbol assignments (such as color). Polygon Types (Map Units) Recorded in the PTYPE Field (CA-GEOL.PAT): water | Qs | Qls | Qrv | Qrvp | Q | Qg | Qv | Qv? | Qvp | Qvp? | QPc | P | M | M? | M+KJfs | Mc | O | Oc | Oc? | E | E-EP | Ec | Ep | Tc | Tv | Tvp | Ti | grCz | grCz? | TK | Ku-Ep | Ku | Ku? | Kl | Kl? | K | K? | KJf | KJfm | KJfs | J | J? | Tr | Mzv | grMz | grMz? | um | gb | gr-m | sch | gr | m | mv | ls | Pm | C | D | SO | Ca | Pz | Pzv | grPz | pC | pCc | grpC | grpC?. Contents of the Arc Attribute Tables (CA-STRC.AAT) (See contents of CA-GEOL.AAT listed above). Line Types Recorded in the LTYPE Field (CA-STRC.AAT): f.a., anticline, certain | f.a., anticline, certain dbl. plung | f.a., anticline, certain e. plunge | f.a., anticline, certain n. plunge | f.a., anticline, certain s. plunge | f.a., anticline, certain w. plunge | f.a., anticline, concealed | f.a., anticline, concealed dbl. plu | f.a., anticline, concealed e. plung | f.a., anticline, concealed n. plung | f.a., anticline, concealed s. plung | f.a., anticline, concealed w. plung | f.a., monocline, certain | f.a., syncline, certain | f.a., syncline, certain dbl. Plunge | f.a., syncline, certain e. plunge | f.a., syncline, certain n. plunge | f.a., syncline, certain s. plunge | f.a., syncline, certain w. plunge | f.a., syncline, concealed | f.a., syncline, concealed e. plunge | f.a., syncline, concealed n. plunge | f.a., syncline, concealed s. plunge | f.a., syncline, concealed w. plunge. Contents of the Point Attribute Tables (CA-STRC.PAT) - (ITEM NAME, WIDTH, OUTPUT, TYPE, N.DEC, description): AREA, 4, 12, F, 3, not used; PERIMETER, 4, 12, F, 3, not used; CA-STRC#, 4, 5, B, -, unique internal control number; CA-STRC-ID, 4, 5, B, -, unique identification number; PTTYPE, 35, 35, C, -, point type; DIP, 3, 3, I, dip angle in degrees (not used); STRIKE, 3, 3, I, -, strike angle in degrees; SEL, 1, 1, I, -, user defined field, used to save a selected set; SYMB, 3, 3, I, -, user defined field used to save symbol assignments. Point Types Recorded in the PTTYPE Field (CA-STRC.PAT): bedding | ot bedding. MAPINFO - Field definition terms: FIELDS - names of the fields (columns) in table; TYPE - Character-alphanumeric character, Float-number stored in floating-point decimal form, Integer-Integer between -32,768 and +32,768; WIDTH - number of characters stored in the field. MAPINFO Table Structure - (CA-GEOL_LINE.TAB - contacts and faults) - (FIELDS, TYPE, WIDTH, description): FNODE_, Integer, -, starting node of arc (from node); TNODE_, Integer, -, ending node of arc (to node); LPOLY_, Integer, -, polygon to the left of the arc; RPOLY_, Integer, -, polygon to the right of the arc; LENGTH, Float, -, length of arc in meters; CA_GEOL_, Integer, -, unique internal control number; CA_GEOL_ID, Integer, -, unique identification number; LTYPE, Character, 35, line type LTYPE; SEL, Decimal, 1, 0, user defined field used to save a selected set; SYMB, Decimal, 3, 0, user defined field used to save symbol assignments (such as color). Line Types Recorded in the LTYPE Field (CA-GEOL_LINE.TAB) (See ARC/INFO section for line types). MAPINFO Table Structure - (CA-GEOL_POLY.TAB - unit polygons) - (FIELDS, TYPE, WIDTH, description): AREA, Float, -, area of polygon in square meters; PERIMETER, Float, -, length of perimeter in meters; CA_GEOL_, Integer, -, unique internal control number; CA_GEOL_ID, Integer, -, unique identification number; PTYPE, Character, 35, unit label; SEL, Decimal, (1,0), user defined field used to save a selected set; SYMB, Decimal, (3,0), user defined field used to save symbol assignments (such as color). Polygon Types (Map Units) Recorded in the PTYPE Field (CA-GEOL_POLY.TAB) (See ARC/INFO section for polygon types). MAPINFO Table Structure - (CA-STRC_LINE.TAB - fold axes) (See Table Structure for CA-GEOL_LINE.TAB listed above). Line Types Recorded in the LTYPE field (CA-STRC_LINE.TAB) (See ARC/INFO section for line types). MAPINFO Table Structure (CA-STRC_POINT.TAB - strike and dip locations) - (FIELDS, TYPE, WIDTH, description): AREA, Float, -, not used; PERIMETER, Float, -, not used; CA_STRC_, Integer, -, unique internal control number; CA_STRC_ID, Integer, -, unique identification number; PTTYPE, Character, 35, point type; DIP, Decimal, (3,0), dip angle in degrees (not used); STRIKE, Decimal, (3,0,), strike angle in degrees; SEL, Decimal, (1,0), user defined field used to save a selected set; SYMB, Decimal, (3,0), user defined field used to save symbol assignments. Point Types Recorded in the PTTYPE Field (CA-STRC_POINT.TAB) (See ARC/INFO section for point types). Table Structure - for tics (CA-GEOL.TIC and CA-STRC.TIC) - (FIELD NAME, TYPE, WIDTH, description): IDTIC, Integer, -, id number assigned to each tic; XTIC, Float, -, longitude of tic; YTIC, Float, -, latitude of tic. California Division of Mines and Geology

P.O. Box 2980

Sacramento CA 95812-2980 The data and software on this CD-ROM are provided by the California Department of Conservation, Division of Mines and Geology, as is. Any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the California Department of Conservation, Division of Mines and Geology, or its associated contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) that arise in any way out of the use of these data and software, even if advised of the possibility of such damage. Although the data on this CD-ROM have been produced and processed by professional scientists and organizations, the California Department of Conservation, Division of Mines and Geology, makes no warranty, express or implied, regarding the data or its use. It is recommended that careful attention be paid to the contents of any metadata associated with a specific file, and that the originator of the data be contacted with any questions regarding appropriate use. The California Department of Conservation, Division of Mines and Geology, shall not be held liable for improper or incorrect use of the data described and/or contained herein. ARC/INFO export - (MAPINFO) 7.1.1 - (4.5) CD-ROM This product can also be ordered by phone using VISA, MasterCard, or American Express or by mail with check, money order or credit card through any DMG office. Downloadable Data 20040126 George J. Saucedo California Department of Conservation, Division of Mines and Geology Associate Engineering Geologist mailing and physical address

185 Berry Streeet, Suite 210

San Francisco CA 94107-1728 USA (415) 904-7726 (415) 904-7715 gsaucedo@consrv.ca.gov FGDC Content Standards for Digital Geospatial Metadata enFGDC-STD-001-1998local timehttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile {FB4F723B-4E6E-4C59-8D73-11DBC3685ED9}2003091508550300FALSE20040126100820002004012610082000Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800ca-geol.txtISO 19115 Geographic Information - MetadataDIS_ESRI1.0dataset002Text File20040126