Geologic feature dataset for the Surficial Geologic Map of a Calico Mountains Piedmont and Part of Coyote Lake, Mojave Desert, San Bernardino County, California

Metadata also available as

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Stephanie L. Dudash
Publication_Date: 2006
Title:
Geologic feature dataset for the Surficial Geologic Map of a Calico Mountains Piedmont and Part of Coyote Lake, Mojave Desert, San Bernardino County, California
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Open File Report
Issue_Identification: OFR2006-1090
Publication_Information:
Publication_Place: Menll Park, CA
Publisher: U.S. Geological Survey
Online_Linkage: <http://pubs.usgs.gov/of/2006/1090>
Description:
Abstract:
This 1:24,000 scale detailed surficial geologic map and digital database of a Calico Mountains piedmont and part of Coyote Lake in south-central California depicts surficial deposits and generalized bedrock units. Mapping is displayed on parts of four USGS 7.5 minute series topographic maps: Coyote Lake, Yermo, Alvord Mountain West, and Harvard Hill. The map area lies in the central Mojave Desert of California, northeast of Barstow, CA and south of Fort Irwin, CA and covers 258 km2 (99.5 mi2). Geologic deposits in the area consist of Paleozoic metamorphic rocks, Mesozoic plutonic rocks, Miocene volcanic rocks, Pliocene-Pleistocene basin fill, and Quaternary surficial deposits. McCulloh (1960, 1965) conducted bedrock mapping and a generalized version of his maps are compiled into this map. McCulloh's maps contain many bedrock structures within the Calico Mountains that are not shown on the present map.

The map and database was produced at 1:24,000 scale (coordinate system NAD 1983, UTM zone 11N) using traditional field methods, interpretation of remote sensing images, and previous mapping. Field methods include description of landforms, deposit characteristics, and soil morphology. Stereoscopic analysis was conducted using 1:24,000 and 1:30,000 scale aerial photographs. Remote sensing images were used to evaluate topography and landforms. Process of deposition, geomorphic position, surface roughness, desert pavement maturity, soil morphology, and inset relations were used to classify Quaternary surficial deposits. All line work was compiled in ESRI's ArcMap® using referenced digital orthoquarter quadrangles (DOQQs) and topographic maps. The digitizing scale was approximately 1:3000. The database includes information on geologic deposits, samples, and geochronology.

Purpose:
The mapping is part of a USGS project to investigate the spatial distribution of deposits linked to changes in climate, to provide framework geology for land use management (<http://deserts.wr.usgs.gov>), to understand the Quaternary tectonic history of the Mojave Desert, and to provide additional information on the history of Lake Manix, of which Coyote Lake is a sub-basin.
Supplemental_Information:
This feature dataset is a component of the geodatabase of the Surficial Geologic Map of a Calico Mountains Piedmont and Part of Coyote Lake, Mojave Desert, San Bernardino County, California

Feature classes included in the geodatabase of the Surficial Geologic Map of a Calico Mountains Piedmont and Part of Coyote Lake, Mojave Desert, San Bernardino County, California are: geologic units (clco_poly), geologic contacts and faults (clco_arc) and samples for ostracode analysis or geochronology (clco_samples).

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20030310
Currentness_Reference: ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -116.876046
East_Bounding_Coordinate: -116.675988
North_Bounding_Coordinate: 35.084176
South_Bounding_Coordinate: 34.942502
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: geologic map
Theme_Keyword: surficial geology
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Mojave Desert
Place_Keyword: Calico Mountains
Place_Keyword: Coyote Lake
Place_Keyword: San Bernardino County
Place_Keyword: California
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: Quaternary
Access_Constraints: none
Use_Constraints:
Not for use at scales greater than 1:24,000. Any derivative products utilizing these datasets shall clearly indicate their source. If users modify the data in any way they are obligated to describe the types of modifications they have performed. User specifically agrees not to misrepresent these datasets, nor to imply that changes they made were approved by the U.S. Geological Survey.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Stephanie L. Dudash
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 2255 N. Gemini Dr.
City: Flagstaff
State_or_Province: AZ
Postal_Code: 86001
Country: USA
Contact_Voice_Telephone: 928-556-7267
Contact_Facsimile_Telephone: 928-556-7169
Contact_Electronic_Mail_Address: sdudash@usgs.gov
Data_Set_Credit:
This digital database was prepared by Stephanie L. Dudash. Technical review was provided by Marith Reheis and Lee Amoroso. Digital review was provided by Sue Priest of the U.S. Geological Survey.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Geologic features were identified, mapped, digitized, and attributed by the principle investigator (Stephanie L. Dudash). The features were symbolized based on their attributes and plotted at 1:24,000-scale and compared visually with the original source maps.
Logical_Consistency_Report:
This database has been reviewed and is considered to be error-free. All features have attributes. Each line segment has a length and directionality that is appropriate for the geologic feature it depicts. No sliver polygons are present.
Completeness_Report:
This database is considered complete. All geologic features depicted on the source maps were digitized and attributed.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Most of the geologic features in this database are considered to be accurately located, and within +/- 5 meters of their actual location on the topographic base map. This accuracy diminishes in areas where the topography is either flat or very steep, or where the geologic feature of interest is difficult to discern. The 1:24,000 topographic maps and corresponding Digital Orthoquarter Quadrangles (DOQQs) that were used as the primary mapping base for this project were assumed to meet the National Map Accuracy Standard of +/- 12 meters.
Lineage:
Process_Step:
Process_Description:
Geologic features (outlined in Supplemental Information) were identified on 1975 black and white, 1:24,000-scale aerial photographs; on 1978 black and white, 1:30,000-scale aerial photographs; and on 1983 color 1:24,000-scale aerial photographs. The features were digitzed on Digital Orthoquarter Quadrangles (DOQQs) by the principle investigator (Stephanie L. Dudash) in ArcMap 8.2©, 8.3© and 9.0© using the compilation aerial photographs as a guide. The digitizing scale was approximately 1:3,000. The original coverage in ArcMap 8.2© was converted to a geodatabase in 8.3©. Additional line work was created in the arc feature class, which was then constructed into polygons. Each feature class was symbolized based on attributes and plotted at 1:24,000-scale and compared to the source maps. Errors were edited as needed to achieve an error-free database.
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Stephanie L. Dudash
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 2255 N. Gemini Dr.
City: Flagstaff
State_or_Province: AZ
Postal_Code: 86001
Country: USA
Contact_Voice_Telephone: 928-556-7267
Contact_Facsimile_Telephone: 928-556-7169
Contact_Electronic_Mail_Address: sdudash@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: units
Point_and_Vector_Object_Count: 1015
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: arcs
Point_and_Vector_Object_Count: 2812
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: samples
Point_and_Vector_Object_Count: 22
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 11
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -117.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001000
Ordinate_Resolution: 0.001000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 0.000010
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey Information Services
Contact_Address:
Address_Type: mailing address
Address: Box 25286 Denver Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 1-800-ASK-USGS
Contact_Electronic_Mail_Address: ask@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
The U.S. Geological Survey (USGS) provides these geographic data "as is." The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.

In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of delivery, installation, operation, or support by USGS.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcGIS Personal Geodatabase
Format_Version_Number: 9.1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://pubs.usgs.gov/OF/2006/>
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20060412
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Stephanie L. Dudash
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 2255 N. Gemini Dr.
City: Flagstaff
State_or_Province: AZ
Postal_Code: 86001
Country: USA
Contact_Voice_Telephone: 928-556-7267
Contact_Facsimile_Telephone: 928-556-7169
Contact_Electronic_Mail_Address: sdudash@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Generated by mp version 2.8.6 on Wed Apr 12 16:16:38 2006