Geologic Map of the McGrew Spring 7.5' Quadrangle, Cochise County, Arizona

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Todd C. Shipman

Originator: Charles A. Ferguson

Publication_Date: 20031219

Title:

Geologic Map of the McGrew Spring 7.5' Quadrangle, Cochise County, Arizona

Series_Information:

Series_Name: Arizona Geological Survey Digital Geologic Map

Issue_Identification: DGM-35

Geospatial_Data_Presentation_Form: Map

Publication_Information:

Publication_Place: Tucson, AZ

Publisher: Arizona Geological Survey

Description:

Abstract:

The McGrew Springs 7.5' Quadrangle is located in northwestern Cochise County about 45 miles southeast of Tucson, Arizona and lies south of the town of Benson. The western portion of the map encompasses a portion of the eastern flank of the Whetstone Mountains which is part of the Coronado National Forest. Kartchner Caverns State Park is located in the northeast corner of the map. The majority of the map area is covered by Quaternary fan and Tertiary basin fill deposits. Bedrock and surficial geology in the study area were mapped between October, 2002 and June, 2003 as part of a multiyear mapping program directed at producing geologic map coverage for the Karchner Caverns State Park and surrounding areas. Quaternary and late Tertiary deposits in the McGrew Springs 7.5' Quadrangle were partially mapped by Gray (1965) however this map does not separate the quaternary deposits from each other. Multiple phases of Quaternary alluvial fans top late Tertiary valley fill. Large outcrops of valley fill are exposed in the southeastern portion of the map which could be related to structure, however, there was no direct evidence for this structure in the mapped deposits.

Purpose:

The intention of this investigation is a multiyear mapping program directed at producing geologic map coverage for the Karchner Caverns State Park and surrounding San Pedro River areas. The primary product resulting from new mapping in the study area is a 1:24000 layout-scale geologic map describing rock units and other geologic features.

Supplemental_Information:

The mapping was done under the joint State-Federal STATEMAP program, as specified in the National Geologic Mapping Act of 1992, and was jointly funded by the Arizona Geologic Survey and the U.S. Geological Survey under STATEMAP Program Contract #02HQAG0016. The view and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20031219

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As Required

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -110.375

East_Bounding_Coordinate: -110.25

North_Bounding_Coordinate: 31.875

South_Bounding_Coordinate: 31.75

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: digital cartography

Theme_Keyword: digital geologic map

Theme_Keyword: bedrock geology

Theme_Keyword: surficial geology

Theme_Keyword: Kartchner Caverns

Theme_Keyword: McGrew Spring

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Whetstone Mountains

Place_Keyword: Cochise County

Place_Keyword: Arizona

Place_Keyword: U.S.A.

Place_Keyword: McGrew Spring 7.5' quadrangle

Place_Keyword: San Pedro River

Access_Constraints: None

Use_Constraints: Not to be reproduced for commercial purposes

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Arizona Geological Survey

Contact_Position: GIS Technician or GIS Manager

Contact_Address:

Address_Type: mailing and physical address

Address: 416 W. Congress St., # 100

City: Tucson

State_or_Province: Arizona

Postal_Code: 85701

Country: U.S.A.

Contact_Voice_Telephone: 520-770-3500

Contact_Facsimile_Telephone: 520-770-3505

Hours_of_Service: 8:00 a.m to 5:00 p.m., M-F

Native_Data_Set_Environment: Adobe® PDF format, jpg and Postscript files

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Although no formal tests were performed, all attribution was tested for accuracy against the paper source maps from which the source dataset was digitized by direct visual comparison between the source maps and the digital dataset.

Logical_Consistency_Report: All attributes are logically consistent.

Completeness_Report: Data completeness reflects the content of the source maps.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Shipman, Todd C.

Title: unpublished field sheets (published here)

Publication_Date: 2003

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 24000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20030101

Ending_Date: 20030801

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Shipman

Source_Contribution: map of surficial geology

Source_Information:

Source_Citation:

Citation_Information:

Originator: Ferguson, Charles A.

Title: unpublished field sheets (published here)

Publication_Date: 2003

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 24000

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20021101

Ending_Date: 20030401

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Ferguson

Source_Contribution: map of bedrock geology

Source_Information:

Source_Citation:

Citation_Information:

Originator: aerial photographs

Title: published aerial photographs, DOQQs and other aerial photos

Publication_Date: 20031219

Geospatial_Data_Presentation_Form:

DOQQs; 1:24,000-scale black and white aerial photos (Cooper, 1998); USGS Mapp color IR photos (USGS, 1996)

Source_Scale_Denominator: 24000

Type_of_Source_Media: photographs

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19960101

Ending_Date: 19980101

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: aerial photographs

Source_Contribution: aerial photographs of ground condition at time of flight

Process_Step:

Process_Description:

(1) Bedrock geology was hand drafted in the field onto a topographic base; (2) Field sheets were scanned on a table-top scanner; (3) Scans were registered and rectified using ArcGIS 8.3 software; (4) Scans were digitized on-screen and edited as multiple layers using ArcMap; (5) Layers were attributed using ArcMap 8.3; (6) Surficial geology was mapped in the office on mylar over photos; (7) Surficial geology was field verified; (8) Mylar overlays and photos were scanned on a table-top scanner; (9) Scans were rectified using ERDAS Imagine 8.4 and 1992 DOQQ's; (10) Scans were digitized on-screen using ArcMap 8.3; (11) Line locations were adjusted using ArcMap 8.3; (12) Surficial coverage was merged with bedrock coverage; (15) Map unit colors and other cartographic symbology were imported from a palette created in ArcMap; (16) Layouts with associated collar text were created using ArcMap; (17) Layouts were printed to Postscript files then converted to PDF files using Adobe Distiller.

Source_Used_Citation_Abbreviation: Shipman

Source_Used_Citation_Abbreviation: Ferguson

Source_Used_Citation_Abbreviation: aerial photographs

Process_Date: 20031219

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Arizona Geological Survey

Contact_Position: GIS Technician

Contact_Address:

Address_Type: mailing and physical address

Address: 416 W. Congress St., # 100

City: Tucson

State_or_Province: Arizona

Postal_Code: 85701

Country: U.S.A.

Contact_Voice_Telephone: 520-770-3500

Contact_Facsimile_Telephone: 520-770-3505

Hours_of_Service: 8:00 a.m to 5:00 p.m., M-F

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: raster

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 12

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -111.000000

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: 1

Ordinate_Resolution: 1

Planar_Distance_Units: Meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927

Ellipsoid_Name: Clarke 1866

Semi-major_Axis: 6378206.4000000

Denominator_of_Flattening_Ratio: 294.978698

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

This dataset consists of 1 Adobe® PDF file, 1 jpg and 1 Postscript file that represents the geologic map with associated collar text. The map is a detailed, 1:24,000 layout scale geologic map of a portion of the Whetstone Mountains and Kartchner Caverns area.

Entity_and_Attribute_Detail_Citation: n/a

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Arizona Geological Survey

Contact_Position: Publication Sales Department

Contact_Address:

Address_Type: mailing and physical address

Address: 416 W. Congress St., # 100

City: Tucson

State_or_Province: Arizona

Postal_Code: 85701

Country: U.S.A.

Contact_Voice_Telephone: 520-770-3500

Contact_Facsimile_Telephone: 520-770-3505

Hours_of_Service: 8:00 a.m to 5:00 p.m., M-F

Resource_Description:

AZGS DGM-35: Geologic Map of the McGrew Spring 7.5' Quadrangle, Cochise County, Arizona

Distribution_Liability:

Although these data have been processed successfully on a computer system at the Arizona Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from the Arizona Geological Survey, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The Arizona Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Adobe® PDF format

Digital_Transfer_Option:

Offline_Option:

Offline_Media: CD-ROM

Recording_Format: Adaptec EasyCD creator

Compatibility_Information: Windows 95/98/NT4.0/2000

Fees:

cd-rom - $15; paper map - $15

Ordering_Instructions:

Publications and maps may be purchased by mail, phone or in person from the AZGS office in Tucson. Call for information (520-770-3500) or visit the AZGS website at www.azgs.az.gov to view a list of publications and to print out an order form.

Metadata_Reference_Information:

Metadata_Date: 20031219

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Arizona Geological Survey

Contact_Position: GIS Technician

Contact_Address:

Address_Type: Mailing and physical address

Address: 416 W. Congress St., # 100

City: Tucson

State_or_Province: Arizona

Postal_Code: 85701

Country: U.S.A.

Contact_Voice_Telephone: 520-770-3500

Contact_Facsimile_Telephone: 520-770-3505

Hours_of_Service: 8:00 a.m to 5:00 p.m., M-F

Metadata_Standard_Name: FGDC CSDGM

Metadata_Standard_Version: FGDC-STD-001-1998