20210428
10075600
FALSE
20210428
09503300
20210428
09503300
FGDC
geologic_dep
002
224315.021900
731643.788700
3599666.663800
3984512.158900
1
Projected
GCS_North_American_1983
Linear Unit: Foot_US (0.304801)
NAD_1983_StatePlane_California_V_FIPS_0405_Feet
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1.0
100000
24000
Sol McCrea
California Geological Survey - Forest and Watershed Geology Program
(916) 323-9284
(916) 323-9264
801 K St., MS 13-40
Sacramento
CA
95814
US
smccrea@conservation.ca.gov
ArcGIS Metadata
1.0
Sol McCrea
California Geological Survey, Forest and Watershed Geology Program
(916) 323-9284
(916) 323-9264
801 K Street, MS 13-40
Sacramento
CA
95814
US
smccrea@conservation.ca.gov
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Peter Roffers
California Geological Survey, Forest and Watershed Geology Program
(916) 445-7639
(916) 323-9264
801 K St., MS 13-40
Sacramento
CA
95814
US
proffers@conservation.ca.gov
none
2010-01-01T00:00:00
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
ArcGIS File Geodatabase
20120701
88.3
File Geodatabase Feature Class
2010-07-01T00:00:00
2012-07-01T00:00:00
2.0
California Geological Survey
Sacramento, CA
Bedrossian (ed.)
Hayhurst (ed.)
McCrea (comp.)
Roffers (ed.)
Thompson (comp.)
Wanish (comp.)
California Geological Survey Special Report
SP 217 (Revised 2012)
geologic_dep
Lancaster (ed.)
Davenport (ed.)
Haydon (ed.)
Dawson (ed.)
Myers (ed.)
Utley (comp.)
Carney (comp.)
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The geo_poly feature class is a compilation of detailed geologic features shown on 21 recent high-resolution digital maps that cover a large portion of southern California.</SPAN></P></DIV></DIV></DIV>
Since November 2007, the Department of Conservation's California Geological Survey (CGS) has been a technical consultant to the Department of Water Resources (DWR) and its Alluvial Fan Task Force (AFTF) for a 10-county southern California area including San Bernardino, Riverside, Los Angeles, Ventura, Santa Barbara, San Luis Obispo, Kern, Orange, Imperial, and San Diego. In this capacity, CGS has assisted in identifying geologic hazards and natural resources that could affect or be affected by development on alluvial fans, and in preparing guidance for alluvial fan floodplain management. The CGS Compilation of Quaternary Surficial Deposits in Southern California was designed as a regional-scale planning tool to assist DWR, the AFTF, and local communities in evaluating future development on alluvial fans. The detailed geologic features shown on recent high-resolution geologic maps that cover portions of southern California from Santa Barbara to San Diego have been compiled into a single source GIS dataset. A derivative GIS dataset has also been created that merges geologic mapping from various authors, and at different scales, into a common seamless format that normalizes and differentiates the various alluvial fan and related Quaternary deposits into forty geological units for the entire area at a scale of 1:100,000.
This data was created and compiled by California Geological Survey. This project was funded by Department of Water Resources.
Jeremy Lancaster
California Geological Survey - Geologic Mapping Program
(916)322-9309
801 K Street, MS 12-32
Sacramento
CA
95814
US
jeremy.lancaster@conservation.ca.gov
San Bernardino County
Orange County
Southern California
Los Angeles County
Ventura County
San Diego County
Riverside County
Kern County
Santa Barbara County
Imperial County
San Luis Obispo County
Quaternary
ISO 19115 Topic Category
debris flow
geologic mapping
Alluvial Fan Task Force
watershed
AFTF
landslide
geologic hazards
flood hazard
alluvial fan floodplain management
surficial deposits
geoscientificInformation
Quaternary age alluvium
San Bernardino County
debris flow
geologic mapping
Alluvial Fan Task Force
Orange County
watershed
AFTF
Southern California
landslide
Los Angeles County
Ventura County
geologic hazards
San Diego County
Riverside County
Kern County
flood hazard
alluvial fan floodplain management
Santa Barbara County
Imperial County
surficial deposits
San Luis Obispo County
geoscientificInformation
Quaternary age alluvium
Quaternary
Users may redistribute the data but any uses should cite the Department of Conservation, California Geological Survey as the original source of the data, and clearly denote cases where the original data have been updated, modified, or in any way altered from the original condition.
There are no restrictions on distribution of the final data or reproduction of final maps created from the graphics files. However, users are encouraged to refer others to the Department of Conservation to acquire the data, in case updated data become available.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The State of California and the Department of Conservation make no representations or warranties regarding the accuracy of data or maps. Neither the State nor the Department shall be liable under any circumstances for any direct, special, incidental, or consequential damages with respect to any claim by any user or third party on account of or arising from the use of data or maps. Users should cite the Department of Conservation, California Geological Survey as the original source of the data, but clearly denote cases where the original data have been updated, modified, or in any way altered from the original condition. Additionally, the information on these maps is not sufficient to serve as a substitute for geologic and geotechnical site investigations required under Chapters 7.5 and 7.8 of Division 2 of the California Public Resources Code.</SPAN></P></DIV></DIV></DIV>
Classification of surficial materials, Inland Empire Region, southern California: conceptual and operational framework
2007-01-01
U.S. Geological Survey
Matti, J.C.
Cossette, P.M.
Open-File Report
in progress
Divisions of geologic time - major chronostratigraphic and geochronologic units
2007-01-01
U.S. Geological Survey
U.S. Geological Survey
document
USGS Fact Sheet
2007-3015
Classification of Quaternary deposits, Southern California Areal Mapping Project (SCAMP), a working model
2000-01-01
1.0
U.S. Geological Survey and California Division of Mines and Geology
U.S. Geological Survey
a working model, 9/10/20000
A proposed classification for surficial geologic materials in southern California
2000-01-01
1.0
U.S. Geological Survey
Southern California Areal Mapping Project
document
Open-File Report
in progress
Classification of surficial geologic materials in southern California for use by the Southern California Areal Mapping Project (SCAMP)
2002-01-01
U.S. Geological Survey
Southern California Areal Mapping Project (SCAMP)
document
Open-File Report
in progress
FGDC digital cartographic standard for geologic map symbolization: Prepared for the Federal Geographic Data Committee by the U.S. Geological Survey
2006-01-01
Federal Geographic Data Committee
U.S. Geological Survey
Reston, VA
document
Federal Geographic Data Committee Document Number
FGDC-STD-013-2006
ground condition
2012-07-01T00:00:00
Esri ArcGIS 12.7.3.26828
1
-120.057068
-114.430821
36.005082
32.500114
CGS used 16 source datasets and five original mapping datasets to create the derivative dataset. All datasets were first checked to verify that they were topologically clean. Topology issues were found in several of the datasets and were corrected. We then checked and corrected the minor topological errors (slivers and gaps) that existed between adjacent datasets. Various types of imagery, existing published and unpublished data, and limited field studies were used in areas where original geologic mapping was conducted using the CGS derivative units.
CGS used 16 source datasets and five original mapping datasets to create the derivative dataset. All datasets were first checked to verify that they were topologically clean. Topology issues were found in several of the datasets and were corrected. We then checked and corrected the minor topological errors (slivers and gaps) that existed between adjacent datasets. Various types of imagery, existing published and unpublished data, and limited field studies were used in areas where original geologic mapping was conducted using the CGS derivative units.
This dataset covers areas both where existing data was available and where existing data was limited or absent.
CGS rectified inconsistencies along the boundaries of the various mapped areas to create a seamless Derivative GIS Database, but retained links to the original mapping (where available) in the Source GIS Database so that the more detailed geologic information can be retrieved. Where differences in the mapping of geologic units along quadrangle boundaries were severe, CGS consulted other geologic references listed in the Project Index Map with References and various types of aerial photography to resolve rock type, location, and age discrepancies. Because field review was limited, CGS made some edge match judgments solely on the basis of age and/or areal extent of the mapped units along the borders of each quadrangle. For example, if geologic rock type boundaries matched on adjacent quadrangles, but there was a discrepancy in the age (e.g., Qoa vs Qvoa), CGS considered the stratigraphic position of the unit in relationship to other geologic units mapped in the overall area, as well as the extent of the mapped units on both quadrangles. In most cases, CGS designated the younger age (i.e., Qoa) along the mapped boundaries. However, if selection of the Qoa designation would result in more extensive areal changes on one derivative map than the other, then the Qvoa designation was selected for purposes of the edge match only.
Provides geologic information for the San Bernardino and Santa Ana 30' x 60' quadrangles, California.
100000
Geologic map of the San Bernardino and Santa Ana 30' x 60' quadrangles, California
Morton and Miller (2006)
2006-01-01T00:00:00
Morton D.M.
Miller, F.K.
U.S. Geological Survey
Denver, CO
http://ngmdb.usgs.gov/Prodesc/proddesc_78686.htm
vector digital data
U.S. Geological Survey Open-File Report
2006-1217
http://ngmdb.usgs.gov/Prodesc/proddesc_78686.htm
Provides geologic information for the Mesquite Lake 30' x 60' quadrangle, California and Nevada. We used only the California portion of the quad in the derivative map.
100000
Preliminary surficial geologic map database of the Mesquite Lake 30' x 60' quadrangle, California and Nevada
Schmidt and McMackin (2006)
2006-01-01
Schmidt, K.M.
U.S. Geological Survey
Denver, CO
McMackin, M.
vector digital data
U. S. Geological Survey Open-File Report
2006-1035
http://pubs.er.usgs.gov/usgspubs/ofr/ofr20061035
Geologic information for the Long Beach 30' x 60' quadrangle, California.
100000
Geologic map of the Long Beach 30' by 60' quadrangle, California: A digital database
Saucedo, Greene, Kennedy and Bezore (2009)
2009-01-01T00:00:00
Greene, H.G.
Saucedo, G.J.
Bezore, S.P.
California Geological Survey
Sacramento, CA
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Kennedy, M.P.
vector digital data
database is in progress
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Provides geologic information for the Cuyama 30' x 60' Quadrangle, California
100000
Geologic Map of the Eastern Three-Quarters of the Cuyama 30' x 60' Quadrangle, California
Kellog, Minor and Cossette (2008)
2008-01-01
Cossette, P.M.
U.S. Geological Survey
Denver, CO
http://pubs.usgs.gov/sim/3002/
Minor, S.A.
Kellogg, K.S.
vector digital data
USGS Scientific Investigations Map
3002
http://pubs.usgs.gov/sim/3002/
Provides geologic information for the Sheep Hole Mountains 30' x 60' quadrangle, San Bernardino and Riverside counties, California.
100000
Geologic map of the Sheep Hole Mountains 30' x 60' quadrangle, San Bernardino and Riverside counties, California
Howard (2002)
2002-01-01
U.S. Geological Survey
Denver, CO
http://ngmdb.usgs.gov/Prodesc/proddesc_51545.htm
Howard, K.A.
vector digital data
U.S. Geological Survey Miscellaneous Field Investigations
USGS MF-2344
http://ngmdb.usgs.gov/Prodesc/proddesc_51545.htm
publication date
2002-01-01
2009-01-01
Provided geologic information for the eastern portion of the Santa Barbara 30' x 60' area.
24000
Geologic map of the Santa Barbara coastal plain area, Santa Barbara county, California
Minor, Kellogg, Stanley, Gurrola, Keller and Brandt(2009)
2009-01-01
1.0
Keller, E.A.
Minor, S.A.
Gurrola, L.D.
Kellogg, K.S.
Brandt, T.R.
Stanley, R.G
U.S. Geological Survey
Denver, CO
http://pubs.usgs.gov/sim/3001
vector digital data
USGS Scientific Investigations Map
SIM 3001
http://pubs.usgs.gov/sim/3001
Provides geologic information for the San Diego 30' x 60' quadrangle, California
100000
Geologic map of the San Diego 30' by 60' quadrangle, California
Kennedy and Tan (2008)
2008-01-01
Tan, S.S.
California Geological Survey
Sacramento, CA
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Kennedy, M.P.
vector digital data
California Geological Survey Regional Geologic Map
No. 3
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Geologic data for the west half of the Blythe 30' x 60' quadrangle, Riverside County, California.
100000
Geologic map of the west half of the Blythe 30' by 60' quadrangle, Riverside County, California and La Paz County, Arizona
Stone (2006)
2006-01-01T00:00:00
1.0
U.S. Geological Survey
Denver, CO
http://ngmdb.usgs.gov/Prodesc/proddesc_76909.htm
Stone, P.
vector digital data
U.S. Geological Survey Scientific Investigations Map
2922
http://ngmdb.usgs.gov/Prodesc/proddesc_76909.htm
Provides geologic information for the Cuddeback Lake 30' x 60' quadrangle, San Bernardino and Kern counties, California.
100000
Surficial geologic map and geodatabase of the Cuddeback Lake 30'x 60' quadrangle, San Bernardino and Kern counties, California
Amoroso and Miller (2006)
2006-01-01
Amoroso, L.
Miller, D.M.
U.S. Geological Survey
Denver, CO
http://pubs.usgs.gov/of/2006/1276
vector digital data
U.S. Geological Survey Open File Report
OFR 2006-1276
http://pubs.usgs.gov/of/2006/1276
Provides geologic information for the Oceanside 30' x 60' quadrangle, California.
100000
Geologic map of the Oceanside 30' by 60' quadrangle, California: A digital database
Kennedy and Tan (2007)
2007-01-01
1.0
Tan, S.S.
California Geological Survey
Sacramento, CA
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Kennedy, M.P.
vector digital data
California Geological Survey Regional Geologic Map
Regional Geologic Map No. 2
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Provides geologic information for the El Cajon 30' x 60' quadrangle, southern California.
100000
Preliminary geologic map of the El Cajon 30' x 60' quadrangle, southern California
Todd (2004)
2004-01-01
U.S. Geological Survey
Denver, CO
http://pubs.usgs.gov/of/2004/1361
Todd, V.R.,
vector digital data
U.S. Geological Survey Open-File Report
USGS OFR 2004-1361
http://pubs.usgs.gov/of/2004/1361
Geologic data for the Amboy 30' x 60' minute quadrangle, California.
100000
Surficial geologic map of the Amboy 30' x 60' minute quadrangle, San Bernardino County, California
Bedford, Miller and Phelps (2010)
2010-01-01T00:00:00
Miller, D.M.
Phelps, G.A.
Bedford, D.R.
U.S. Geological Survey
Denver, CO
http://pubs.usgs.gov/sim/3109/index.html
vector digital data
Scientific Investigations Map
3109
http://ngmdb.usgs.gov/Prodesc/proddesc_77605.htm
Provides geologic information for the Los Angeles 30' x 60' quadrangle, California.
100000
Preliminary geologic map of the Los Angeles 30' by 60' quadrangle, California: A digital database
California Geological Survey (2009)
2009-01-01
California Geological Survey
Sacramento, CA
vector digital data
dataset is in progress, version 12/22/09
Provides geologic information for the east half Santa Barbara 30' x 60' quadrangle, California.
100000
Geologic map of the east half Santa Barbara 30' x 60' quadrangle, California
Gutierrez, Tan and Clahan (2008)
2008-01-01T00:00:00
Tan, S.S.
Gutierrez, C.I.
Clahan, K.B.
California Geological Survey
Sacramento, CA
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
vector digital data
dataset is in progress
http://conservation.ca.gov/cgs/rghm/rgm/Pages/preliminary_geologic_maps.aspx
Provides geologic information for the Ivanpah 30' x 60' quadrangle, California.
100000
Surficial Geologic Map of the Ivanpah 30' x 60' Quadrangle, San Bernardino County, California, and Clark County, Nevada
Miller (2012)
2012-01-01T00:00:00
Miller, D. M.
USGS
U.S. Geological Survey
Provides geologic information for the Newberry Springs 30' x 60' quadrangle, California.
Preliminary Surficial Geologic Map of the Newberry 30' x 60' Quadrangle, California
Phelps, Bedford, Lidke, Miller, and Schmidt (2011)
Open-File Report 2011-1044
2011-01-01T00:00:00
Phelps, G. A.
Bedford, D. R.
Lidke, D. J.
Miller, D. M.
Schmidt, K. M.
U.S. Geological Survey
http://geopubs.wr.usgs.gov/open-file/of20111044/
100000
Provides geologic information for the eastern half of the Taft 30' x 60' quadrangle, California.
100000
Geologic Map of Quaternary Surficial Deposits in Southern California East Half of the Taft 30' X 60' Quadrangle
2012-07-01T00:00:00
Haydon, W. D.
Hayhurst, C. A.
California Geological Survey
Sacramento
CA
Provides geologic information for the Tehachapi 30' x 60' quadrangle, California.
100000
Geologic Map of Quaternary Surficial Deposits in Southern California Tehachapi 30' X 60' Quadrangle
2012-07-01T00:00:00
Davenport, C. W.
Dawson, T. E.
Haydon, W. D.
Hayhurst, C. A.
California Geological Survey
Sacramento
CA
Provides geologic information for the Lancaster 30' x 60' quadrangle, California.
100000
Geologic Map of Quaternary Surficial Deposits in Southern California Lancaster 30' X 60' Quadrangle
2012-07-01T00:00:00
Lancaster, J. T.
Hernandez, J. L.
Haydon, W. D.
Dawson, T. E.
Hayhurst, C. A.
California Geological Survey
Sacramento
CA
Provides geologic information for the Soda Mountains 30' x 60' quadrangle, California.
Geologic Compilation of Quaternary Surficial Deposits in Southern California Soda Mountains 30' X 60' Quadrangle
2012-12-21T00:00:00
Bedrossian, T. L.
CGS
California Geological Survey
Sacramento
CA
California Geological Survey
100000
Provides geologic information for the Palm Springs 30' x 60' quadrangle, California.
100000
Preliminary Geologic Map of Quaternary Surficial Deposits in Southern California Palm Springs 30' X 60' Quadrangle
2012-12-21T00:00:00
Lancaster, J. T.
Lancaster, J. T.
Hayhurst, C. A.
Hayhurst, C. A.
Bedrossian, T. L.
CGS
Bedrossian, T. L.
California Geological Survey
Sacramento
CA
California Geological Survey
This study included collecting available geologic mapping of alluvial deposits within the southern California region and compiling them into a more generalized, seamless GIS database. The GIS staff initially collected digital files and hard copies of geologic maps. For this task, they compiled available published and unpublished geological maps, primarily from the U.S. Geological Survey (USGS) and CGS. Staff geologists then reassigned surficial units by reviewing geologic units contained on the various source maps and assigning them to correlated derivative geologic map units. Where existing geologic data was not available, staff geologists prepared new 30’ x 60’ quadrangle maps from various imagery datasets, published and unpublished data, and limited field studies using the CGS derivative geologic units. Staff geologists then rectified any inconsistencies between maps/map boundaries by matching geologic units along the edges of map boundaries. Where discrepancies existed, they adjusted the geologic unit boundaries to provide seamless and consistent mapping units. Revisions to PDF versions of several 30’ x 60’ quadrangles previously mapped under CGS SR217 (2010) were made based on changes resulting from new mapping in adjacent quadrangles. The units as originally mapped are retained for reference in the Source GIS Database. Staff then created a seamless ArcGIS database of the geologic map and prepared a PDF version of the geologic map that may be accessed by the public in a user-friendly format.
2012-07-01T00:00:00
Sol McCrea
California Geological Survey
(916) 323-9284
smccrea@conservation.ca.gov
geologic_dep
This feature class has been edge matched based on its ptype attribute
California Geological Survey
Feature Class
0
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
OBJECTID
OID
4
0
0
Shape
feature geometry
ESRI
Coordinates defining the features.
Shape
Geometry
0
0
0
ptype
ptype
String
20
0
0
geologic unit
California Geological Survey
name
name
String
200
0
0
California Geological Survey
geologic unit description
source_ptype
source_ptype
String
50
0
0
source geologic unit
California Geological Survey
source_name
source_name
String
255
0
0
California Geological Survey
source geologic unit description
source_age
source_age
String
150
0
0
California Geological Survey
source geologic unit age
source_quad
reference 30' x 60' quadrangle
California Geological Survey
source_quad
String
100
0
0
source
agency that created reference data
California Geological Survey
USGS
CGS
source
String
20
0
0
reference_doc
document where references are cited
California Geological Survey
reference_doc
String
100
0
0
geoID
internally generated unique identifier
California Geological Survey
geoID
Integer
4
0
0
acres
acres
Double
8
0
0
Shape_Length
Shape_Length
Double
8
0
0
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape_Area
Shape_Area
Double
8
0
0
Area of feature in internal units squared.
Esri
Positive real numbers that are automatically generated.
dataset
EPSG
5.3(9.0.0)
0
Simple
FALSE
0
TRUE
FALSE
20210428