Spatial Digital Database of the Geologic Map of Catalina Core Complex and San Pedro Trough, Pima, Pinal, Gila, Graham, and Cochise Counties, Arizona

By William R. Dickinson1
Digital database by Douglas M. Hirschberg1, G. Stephen Pitts1, and Karen S. Bolm2

Open-File Report 02-365
Digital database version 1.0

Prepared in cooperation with the University of Arizona


2002
(map originally published in 1992)




Approved for publication September 20, 2002


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.  The digital database is not meant to be used or displayed at any scale larger than 1:125,000 (for example, 1:100,000 or 1:24,000).


U.S. DEPARTMENT OF THE INTERIOR
U.S. GEOLOGICAL SURVEY








Table of Contents

INTRODUCTION	3
LIST OF MAP UNITS	3
STRATIFIED ROCK UNITS	3
INTRUSIVE ROCK UNITS	8
DATA SOURCES, PROCESSING, AND ACCURACY	9
GIS DOCUMENTATION	9
LINEAR FEATURES	11
AREAL FEATURES	12
POINT FEATURES	14
SOURCE ATTRIBUTES	15
OBTAINING DIGITAL DATA	15
OBTAINING PAPER MAPS	16
REFERENCES CITED	16
APPENDIX A - LIST OF DIGITAL FILES IN THE CATALINA CORE COMPLEX AND SAN PEDRO TROUGH GIS	17
APPENDIX B  - METADATA FILE (CCC125K.MET) FOR CATALINA CORE COMPLEX AND SAN PEDRO TROUGH GIS	18











List of Figures
Figure 1.  Index map showing the geographic extent of the spatial digital database	4
Figure 2.  Explanation for the simplified geologic map of Catalina Core Complex and San Pedro Trough, Arizona	5
Figure 3.  Simplified geologic map of Catalina Core Complex and San Pedro Trough, Arizona	6
Figure 4. Relationships between feature attribute tables and look-up tables.	10



Introduction
The geologic map of Catalina Core Complex and San Pedro Trough by Dickinson (1992) was digitized for input into a geographic information system (GIS) by the U.S. Geological Survey staff and contractors in 2000-2001.
This digital geospatial database is one of many being created by the U.S. Geological Survey as an ongoing effort to provide geologic information in a geographic information system (GIS) for use in spatial analysis. The resulting digital geologic map database data can be queried in many ways to produce a variety of geologic maps and derivative products.  Digital base map data (topography, roads, towns, rivers, lakes, and so forth) are not included; they may be obtained from a variety of commercial and government sources.  This database is not meant to be used or displayed at any scale larger than 1:125,000 (for example, 1:100,000 or 1:24,000).  The digital geologic map plot files (ccc-map. pdf, ccc-map.rtl) that are provided herein are representations of the database.
The map area is located in southern Arizona (fig. 1).  Figure 2 is a simplified page size list of the map units, and figure 3 is a page size plot of a generalized map of this database.  This report lists the geologic map units, the methods used to convert the geologic map data into a digital format, the ArcInfo GIS file structures and relationships, and explains how to download the digital files from the U.S. Geological Survey public access World Wide Web site on the Internet.  The manuscript and digital data review by Lorre Moyer (USGS) is greatly appreciated.

List of Map Units
This list of map units was derived from Dickinson (1992).

Stratified Rock Units
Qal	Alluvium (Quaternary)-Stream valley alluvium (shown along San Pedro and Gila Rivers only) 

Nbf	Basin fill (Neogene)-Dissected basin fill (Quiburis Formation and correlatives), together with overlying terrace and pediment gravel sheets and local alluvium

Tsm	San Manuel Formation (lower Miocene) of the San Pedro Trough-Undifferentiated

Tsmk		Kannally Member 

Tsmt		Tucson Wash Member

Tsz		Soza Canyon facies (volcanic clasts) 

Tsk		Kelsey Canyon facies (granitic clasts) 





Supply the EPS file for this figure in the digital data package, so that a section-508 compliant PDF can be made.

Replace this page with a paper printout of the file fig1_indx.eps for review purposes

Replace this page with the file fig1_indx.pdf for web-only publication


































Figure 1.  Index map showing the geographic extent of the Catalina Core Complex and San Pedro Trough (shaded fill) with respect to Arizona counties

Supply the EPS file for this figure in the digital data package, so that a section-508 compliant PDF can be made.

Replace this page with a paper printout of the file fig2_key.eps for review purposes

Replace this page with the file fig2_key.pdf for web-only publication 


































Figure 2.  Explanation for the simplified geologic map of Catalina Core Complex and San Pedro Trough, Arizona

Supply the EPS file for this figure in the digital data package, so that a section-508 compliant PDF can be made.

Replace this page with a paper printout of the file fig3_map.eps for review purposes

Replace this page with the file fig3_map.pdf for web-only publication 




































Figure 3.  Simplified geologic map of Catalina Core Complex and San Pedro Trough, Arizona


Tsp		Paige Canyon facies (metamorphic clasts) 

Tpa	Pantano Formation (Oligocene-Miocene) of Cienega Gap and Tucson Basin

Tcs	Cloudburst Formation (Upper Oligocene to Lower Miocene) of the San Pedro Trough-sedimentary upper member

Tch		Hackberry Wash facies

Tcv		volcanic lower member

Ttv	Tertiary volcanics (Oligocene) of the Tucson Mountains

Tgv	Galiuro Volcanics (Upper Oligocene) 

Tgw		basal "Whitetail Conglomerate" 

Tmi	Mineta Formation (Oligocene) of Caada Atravesada and Teran Basin

Kcv	Cat Mountain Rhyolite (Upper Cretaceous to Paleocene?)-Volcanic and sedimentary rocks

Kaf	American Flag Formation (Upper Cretaceous to Paleocene?)-Volcanic and sedimentary rocks

Kcs	Cascabel Formation (Upper Cretaceous to Paleocene?)-Volcanic and sedimentary rocks

Kmv	Muleshoe Volcanics (Upper Cretaceous to Paleocene?)-Volcanic and sedimentary rocks

Kgv	Glory Hole Volcanics (Upper Cretaceous to Paleocene?)-Volcanic and sedimentary rocks

Kwv	Williamson Canyon Volcanics (Upper Cretaceous to Paleocene?)-Volcanic and sedimentary rocks

Kp	Pinkard Formation (Upper Cretaceous) 

Kb	Bisbee Group (Lower Cretaceous) 

Km		metamorphosed

Jr	Recreation Redbeds (mid-Jurassic?) 

Jw	Walnut Gap Volcanics (mid-Jurassic?)-Red beds

|s	Paleozoic (Cambrian to Permian) strata

|m		metamorphosed Paleozoic strata

Ys	Apache Group and Troy Quartzite (Proterozoic)-Includes intrusive diabase sills and dikes

Xp	Pinal Schist (Proterozoic)-Dominantly metasedimentary rocks


Intrusive Rock Units
Tir	rhyolitic plugs and dikes

Tgt	Tortolita granitic pluton

Tgf	Fortified Peak pluton

Tgc	Catalina granitic pluton

Tw	Wilderness granite suite (Eocene)-Two-mica granite

Twm		mylonitic two-mica granite

Kgc	Copper Creek Granodiorite (Upper Cretaceous to Paleocene?) 

Kdi	Diorite-Semitabular dioritic bodies (Upper Cretaceous to Paleocene?) 

Krp	Rice Peak granodiorite porphyry (Upper Cretaceous to Paleocene?) 

Kgp	granitic porphyry dikes and sills (Upper Cretaceous to Paleocene?) 

Kgh	Chirreon Wash granodiorite (Upper Cretaceous to Paleocene?) 

Kgl	Leatherwood quartz diorite (Upper Cretaceous to Paleocene?) 

Kgr	Rattler Granodiorite (Upper Cretaceous to Paleocene?) 

Kgt	Tortilla Quartz Diorite (Upper Cretaceous to Paleocene?) 

Kga	Amole granitic pluton (Upper Cretaceous to Paleocene?) 

Yo	Oracle/Ruin granite suite (Middle Proterozoic) 

Yom		mylonitic Oracle/Ruin granite suite

Yg	Granodiorite (Precambrian) 

Yd	Diorite (Precambrian) 

Xj	Johnny Lyon granodiorite suite (Lower Proterozoic) 

Xjm		mylonitic Johnny Lyon granodiorite suite (Lower Proterozoic) 


Data Sources, Processing, and Accuracy
Staff and contractors at the U.S. Geological Survey Southwest Field Office (Tucson, Arizona) scanned the published paper map by Dickinson (1992), digitized the line, polygon, and point features, edited the digital files, standardized the database to an interim version, and then plotted and compared the digital map with the original published map to check for digitizing and attributing errors. Processing at the U.S. Geological Survey was done in ArcInfo version 7.2.1 installed on a Sun Ultra 2 workstation. 
The overall accuracy (with respect to the location of features) of the spatial digital database (see figures 2 and 3 for page-size versions) is probably no better than +/- 100 meters. This digital database is not meant to be used or displayed at any scale larger than 1:125,000 (for example, 1:100,000 or 1:24,000).
GIS Documentation
The digital geologic database of the Catalina Core Complex and San Pedro Trough includes two ArcInfo datasets (CCC125K and CCCPNT).
The CCC125K dataset contains linear geologic data (arcs) for contacts, faults, and folds; areal geologic data (polygons) for rock units; and regions for allochthons.  It has an arc attribute table,  CCC125K.AAT, that relates to the CCC125K.CON, CCC125K.ST2 and CCC125K.REF look-up tables.  It has a polygon attribute table, CCC125K.PAT, which relates to the CCC125K.RU and CCC125K.REF look-up tables.  And it also has a polygon-region attribute table, CCC125K.PATALLOCH, that relates to the CCC125K.REF look-up table.
The CCCPNT dataset contains geologic point data for bedding, foliation, and fault attitudes.  It has a point attribute table, CCCPNT.PAT, that relates to the CCCPNT.REF look-up table.
These data files are described below.  Figure 4 shows the relationships between the feature attribute tables and the look-up tables.






Arc attribute table and related look-up tables:


ccc125k.aat
linecode
name
source
orig_desc

ccc125k.con
linecode
symbol
type
modifier
certainty
desc

ccc125k.st2
linecode
symbol
type
horizontal
vertical
fold
plunge
accuracy
certainty
desc

ccc125k.ref
source
scale
authors
year
reference








Polygon attribute table and related look-up tables:


ccc125k.pat
unit
label-alpha
source
desc

ccc125k.ru
unit
label
symbol
label-alpha
label-gaf
name
ss
lith
desc
minage
maxage

ccc125k.patalloch
name
source

ccc125k.ref
source
scale
authors
year
reference











Point attribute table and related look-up table:


cccpnt.pat
pttype
symbol
strike
dip
ai_ang
sym$ang
source

cccpnt.ref
source
scale
authors
year
reference

























Figure 4:  Relationships between feature attribute tables and look-up tables.
Linear Features
Descriptions of the items identifying linear features such as contacts, boundaries (for example, lines of latitude and longitude, state boundaries) and structures in the arc attribute table, ccc125k.aat, are as follows:

ccc125k.aat
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
linecode
integer
3
Numeric code used to identify type of linear feature.  Linecodes < 100 are used for contacts and boundaries which are described in the ccc125k.con file.
Linecodes > 100 and < 600 represent structural features which are described in the ccc125k.st2 file.
name
character
36
Name given to structural feature.  
source
integer
4
Numeric code used to identify the data source for the linear feature.  Complete references for the sources are listed in the ccc125k.ref file.
orig_desc
character
150
Original description of linear feature from Dickinson (1992).  Faults described by Dickinson (1992) as "plated" were coded as thrust faults in this database.



Attribute descriptions for items in the contact (and boundary) look-up table, ccc125k.con (for use with the geol_dia.lin lineset), are as follows:
ccc125k.con
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
linecode
integer
3
Numeric code (a value < 100) used to identify type of contact or boundary.  (This item also occurs in ccc125k.aat.)  
symbol
integer
3
Line symbol number used by ArcInfo to plot lines.  Symbol numbers refer to the geol_dia.lin lineset 
type
character
10
Major type of line, for example, contact, state boundaries, lines of latitude and longitude used for neatlines.
modifier
character
20
Line type modifier, that is, approximate, concealed, gradational.  No entry implies 'known.'
certainty
character
15
Degree of certainty of contact or boundary, that is, inferred, uncertain.  No entry implies 'certain.'
desc
character
100
Written description or explanation of contact or boundary.


Attribute descriptions for items in the structure look-up table, ccc125k.st2 (for use with the geol_dia.lin lineset), are as follows:
ccc125k.st2
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
linecode
integer
3
Numeric code (a value > 100 and < 600) used to identify type of structural feature.  (This item also occurs in ccc125k.aat.)  
symbol
integer
3
Line symbol number used by ArcInfo to plot arcs.  Symbol numbers refer to the geol_dia.lin lineset.
type
character
10
Major type of structure, i.e., fault, fracture, fold, other.
horizontal
character
20
Type of horizontal fault movement, for example, left-lateral, right-lateral.  No entry implies 'unknown.'
vertical
character
20
Type of vertical fault movement, for example, normal.  No entry implies 'unknown.'
fold
character
15
Type of fold, for example, anticline, syncline.
plunge
character 
15
Type of plunge on fold, that is, horizontal, plunging, plunging in, plunging out. No entry implies 'unknown'.
accuracy
character
15
Line type modifier indicating degree of accuracy, that is, approximately located, concealed, gradational.  No entry implies 'known.'
certainty
character
15
Degree of certainty of contact or boundary, that is, inferred, uncertain.  No entry implies 'certain.'
desc
character
100
Written description or explanation of structural feature.

Areal Features
Descriptions of the items identifying geologic units in the polygon attribute table, ccc125k.pat, are as follows:
ccc125k.pat
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
unit
integer
4
Numeric code used to identify the rock unit, which is described in the ccc125k.ru look-up table.  (This item also occurs in ccc125k.ru.)
label-alpha
character
10
Rock unit label (abbreviation) used to label unit on map with standard alphabetic characters. (This item was joined from the ccc125k.ru look-up table.)
source
integer
4
Numeric code used to identify the data source for the rock unit. Complete references for the sources are listed in the ccc125k.ref file.
desc
character
250
Formal or informal unit name. (Values for this item were joined from the ccc125k.ru look-up table).

Attribute descriptions for items in the lithology (rock unit) look-table, CCC125K.RU (for use with the WPGCMYK.SHD shadeset), are as follows:
ccc125k.ru
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
unit
integer
4
Numeric code used to identify rock unit. (This item also occurs in ccc125k.pat.)
label
character 
10
Rock unit label (abbreviation) used to label unit on the map. This item was calculated equal to 'label-gaf'.
symbol
integer
3
Shadeset symbol number used by ArcInfo to plot a filled/shaded polygon.  The symbol numbers used in this file refer to the wpgcmyk.shd shadeset.
label-alpha
character
10
Rock unit label (abbreviation) for use with standard alphabetic characters (for example, PZ for Paleozoic).
label-gaf
character
10
Rock unit label (abbreviation) that uses the geoageFullAlpha font, version 1.1.
name
character 
7
The prefix portion of the rock unit label that does not include subscripts.  (If subscripting is not used in the original unit label, then the 'name' entry is the same as the 'label-alpha' entry.)
ss
character
3
The suffix portion of the geologic unit label that includes subscripts. No entry implies no subscript.
lith
character
20
Major type of lithostratigraphic unit, that is, unconsolidated sediments, sedimentary rocks, metasedimentary rocks, intrusive rocks, extrusive rocks, metamorphic rocks, water, ice.
desc
character
250
Formal or informal unit name
minage
character 
7
Minimum stratigraphic age of lithologic unit, for example, CRET - Cretaceous, TERT - Tertiary, PREC - Precambrian.
maxage
character
7
Maximum stratigraphic age of lithologic unit

Descriptions of the items identifying allochthons in the polygon-region attribute table, ccc125k.patalloch, are as follows:
ccc125k.patalloch
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
name
character
50
Name given to allochthon.  
source
integer
4
Numeric code used to identify the data source for the allochthon.  Complete references for the sources are listed in the ccc125k.ref file.

Point Features
Descriptions of the items identifying geologic map symbols are given in the point attribute table, cccpnt.pat, which is defined as follows:
cccpnt.pat 
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
pttype
character
30
Basic type of geologic point data being represented
(for example, inclined foliation, fault attitude, etc.)
symbol
integer
3
Marker symbol number used by ArcInfo to symbolize the point feature.  Symbol numbers refer to the scamp2d.mrk markerset (after Matti and others, 1997).
strike
integer
3
Strike of bedding, foliation, or cleavage. Strike is an azimuth angle (measured in degrees from 0 to 360 in a clockwise direction from North).
dip
integer
2
Dip of bedding, foliation, cleavage.  This value is an angle measured (in degrees from 0 to 90) down from the horizontal; thus a horizontal dip is 0 degrees and a vertical dip is 90 degrees.
ai_ang
integer
4
The ArcInfo equivalent to the strike.  This value is measured counter-clockwise from east.  An interim value used to calculate sym$angle
sym$ang
integer
4
The angle used to complete the mathematical rotation of the point symbol to its proper orientation on the map.  The various point symbols in the scamp2d.mrk markerset (after Matti and others, 1997) had to be rotated by different amounts to achieve their proper map orientation.  This value is also the $angle pseudoitem value for the point.  
source
integer
4
Numeric code used to identify the data source for the structural map symbol.  Complete references for the sources are listed in the cccpnt.ref file.

Source Attributes
Descriptive source or reference information for the ccc125k and cccpnt ArcInfo datasets is stored in the ccc125k.ref and cccpnt.ref files, respectively.  Attribute descriptions for items in the ccc125k.ref and cccpnt.ref data source files are as follows:
ccc125k.ref  and cccpnt.ref  
ITEM NAME
ITEM TYPE
ITEM LENGTH
ATTRIBUTE DESCRIPTION
source
integer
4
Numeric code used to identify the data source.  (This item also occurs in the ccc125k.aat, ccc125k.pat, and cccpnt.pat files.)
scale
integer
8
Scale of source map.  (This value is the denominator of the proportional fraction that identifies the scale of the map that was digitized or scanned to produce the digital map.)
authors
character
200
Author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial.
year
integer
4
Source (map) publication date
reference
character
250
Remainder of reference in USGS reference format.

Obtaining Digital Data
The digital version of the geologic map is available in ArcInfo exchange (*.e00) format (see Appendix A). These data are being published and this product is a stand-alone product (Dickinson and others, 2002, ver. 1.0). These data are maintained in a Universal Transverse Mercator map projection:
Projection:		UTM
Zone:		12
Datum:		NAD27
Units:		meters
Spheroid:		Clarke1866

Note that this projection can also be described in the following manner:
Projection:				Transverse Mercator
scale factor at central meridian:	0.999600
longitude of central meridian	-111.0000
latitude of origin			0.0000
false easting (meters)		500000.0000
false northing (meters)		0.0000

To obtain copies of the digital data, do one of the following:
Download the digital files from the USGS public access World Wide Web site on the internet: URL = http://geopubs.wr.usgs.gov/open-file/of02-365  or
2.   Anonymous FTP from geopubs.wr.usgs.gov, in the directory: 
pub/open-file/of02-365

The Internet sites contain the digital geologic map both as ArcInfo interchange-format files (*.e00) and as plot files (ccc-map.pdf/.eps) (see Appendix A).  To utilize the spatial database you must have a GIS that is capable of reading ArcInfo interchange-format files. 

Obtaining Paper Maps
Paper copies of the digital geologic map are not available from the U.S. Geological Survey.  However, with access to the Internet and access to a large-format color plotter that can interpret either PDF (portable document format) , or EPS (encapsulated postscript)  files, a 1:125,000-scale paper copy of the map can be made, as follows:
1.  Download the digital version of the map, ccc-map.pdf or ccc-map.eps, from the USGS public access World Wide Web site on the Internet using the 
URL = http://geopubs.wr.usgs.gov/open-file/of02-365
or
2.  Anonymous FTP the plot file, ccc-map.pdf or ccc-map.eps, from:  geopubs.wr.usgs.gov, in the directory:
	pub/open-file/of02-365
3.  This file can be plotted by any large-format color plotter that can interpret EPS or PDF files.  The finished plot is about 34.5 inches wide by 50 inches tall (specify 36 inches by 60 inches to allow for margins).

References Cited
Dickinson, William R., 1992, Geologic map of Catalina Core Complex and San Pedro Trough, Pima, Pinal, Gila, Graham, and Cochise Counties, Arizona: Arizona Geological Survey Contributed Map CM-92-C, 1 plate, scale 1:125,000.

Matti, J.C., Miller, F.K., Powell, R.E., Kennedy, S.A., Bunyapanasarn, T.P., Koukladas, C., Hauser, R.M., and Cossette, P.M., 1997, Geologic-point attributes for digital geologic-map data bases produced by the Southern California Areal Mapping Project (SCAMP): U.S. Geological Survey Open-File Report 97-859, 7 p.














Appendix A - List of digital files in the Catalina Core Complex and San Pedro Trough GIS
--Use import.aml to import all the *.e00 files for use in ArcInfo.


Report text in portable document format:
* ccc125k.pdf

Primary ArcInfo interchange-format (*.e00) and metadata (*.met) files for the digital geology:
* ccc125k.e00 - line and poly GIS
* cccpnt.e00 - point GIS
* ccc125k.met - metadata

Adobe portable document format (*.pdf) and encapsulated postscript (*.eps) plot files for the geologic map sheet:
* ccc-map.pdf
* ccc-map.eps

ArcInfo AML to setup the GIS:
* import.aml - macro program to automatically import ArcInfo (*.e00) files



















































Appendix B  - Metadata file (ccc125k.met) for Catalina Core Complex and San Pedro Trough GIS 

  Identification_Information:
    Citation:
      Citation_Information:
        Originator: William R. Dickinson, University of Arizona
        Originator: Douglas M. Hirschberg, University of Arizona
        Originator: G. Stephen Pitts, University of Arizona
        Originator: Karen S. Bolm, U.S. Geological Survey
        Publication_Date: 2001
        Title:
          Spatial Digital Database of the Geologic Map of Catalina Core
          Complex and San Pedro Trough, Pima, Pinal, Gila, Graham, and
          Cochise Counties, Arizona
        Edition: Version 1.0
        Geospatial_Data_Presentation_Form: map
        Series_Information:
          Series_Name: Open-File Report
          Issue_Identification: 02-365
        Publication_Information:
          Publication_Place: Menlo Park, California
          Publisher: U.S. Geological Survey
        Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of02-365>

    Description:
      Abstract:
        A paper copy of the Geologic Map of the Catalina Core Complex
        and San Pedro Trough (Dickinson, 1992) was scanned and
        digitized by U.S. Geological Survey staff and contractors at
        the Southwest Field Office (Tucson, AZ) in 2000-2001 for input
        into an ArcInfo geographic information system (GIS).  The
        resulting geologic map database (in ArcInfo format) can be
        queried in many ways to produce a variety of geologic maps.
        Digital base map data files. (topography, roadways, towns, and
        hydrography) are not included: they may be obtained from a
        variety of commercial and government sources.  Geologic map
        graphics and plot files that are provided in the Open-File
        Report are representations of the digital database and are not
        designed to be cartographic products. All datasets and
        associated files are available on the Internet at
        http://geopubs.wr.usgs.gov/open-file/of02-365

      Purpose:
        This database was constructed to provide a geologic map GIS
        for use in spatial analysis by a variety of users.  The digital
        geologic database can be queried in many ways to produce a
        variety of derivative geologic maps. The data are not meant to
        be used at any scale larger than 1:125,000 (for example,
        1:100,000 or 1:24,000)

      Supplemental_Information:
        This database consists of two major ArcInfo datasets.  The CCC125K
        dataset contains arc features representing geologic contacts,
        faults, and folds; polygon features representing geologic
        rock (map) units; and regions representing allochthons.
        The CCCPNT dataset contains point features representing
        geologic point data of bedding, foliation, and fault attitude.

        The datasets and related INFO look-up tables have been
        "exported" into ArcInfo interchange files with a .e00 file
        extension and will need to be imported for use.
        Lower case letters are consistently used in naming datasets
        and other files although they may be listed in uppercase
        letters for emphasis in this document and the Open-File Report
        it accompanies.

    Time_Period_of_Content:
      Time_Period_Information:
        Single_Date/Time:
          Calendar_Date: 2002
      Currentness_Reference: September 20, 2002

    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None Planned

    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -111.2
        East_Bounding_Coordinate: -110.1
        North_Bounding_Coordinate: 33.1
        South_Bounding_Coordinate: 31.9

    Keywords:
      Theme:
        Theme_Keyword_Thesaurus: none
        Theme_Keyword: geology
        Theme_Keyword: geologic map
      Place:
        Place_Keyword_Thesaurus: none
        Place_Keyword: United States of America
        Place_Keyword: Arizona
        Place_Keyword: Pima County
        Place_Keyword: Pinal County
        Place_Keyword: Gila County
        Place_Keyword: Graham County
        Place_Keyword: Cochise County

    Access_Constraints: none

    Use_Constraints:
      This digital database is not meant to be used or displayed at any
      scale larger than 1:125,000 (for example, 1:100,000 or 1:24,000).
      Any hardcopies utilizing these datasets shall clearly indicate
      their source.  If users modify the data in any way they are
      obligated to describe on the hardcopy map the types of
      modifications they have performed.  Users 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: Mark Gettings
          Contact_Organization: U.S. Geological Survey
        Contact_Position: Geologist
        Contact_Address:
          Address_Type: mailing and physical address
          Address:
            USGS Geologic Division
            DeConcini Environmental and Natural Resources Bldg.
            520 North Park Ave., Room 357
            University of Arizona
          City: Tucson
          State_or_Province: AZ
          Postal_Code: 85719-5035
          Country: USA
        Contact_Voice_Telephone: 520-670-5507
        Contact_Facsimile_Telephone: 520-670-5571
        Contact_Electronic_Mail_Address: mgetting@usgs.gov

    Data_Set_Credit:
      D.M. Hirschberg (University of Arizona), G.S. Pitts (University of Arizona),
      and K.S. Bolm (USGS), scanned Dickinson's (1992) geologic map;
      registered the resulting image; digitized the arcs and points;
      captured and positioned the annotation, attributed the arcs,
      polygons, and points; defined and populated the look-up tables;
      prepared the data model; wrote the metadata; and produced the
      Open-File Report text. See the Process_Step sections for more
      details on these steps.

    Native_Data_Set_Environment:
      SunOS, 5.6, sun4u UNIX,  ArcInfo version 7.2.1 and
      Microsoft Windows 2000, ArcInfo version 8.1

  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report:
        Attribute accuracy was verified by manual comparison of
        Dickinson's (1992) map with hard copy printouts.

    Logical_Consistency_Report:
      All lines and points on the source map representing geologic
      features were digitized as arcs (line segments) or points.
      These features were digitized once.  Lines intersect only where
      intended.  Overshoots (dangling arcs) and undershoots are present
      as represented in Dickinson's (1992) map.  Line segments are a
      set of sequentially numbered coordinate pairs.  No duplicate
      features exist nor duplicate points in a data string.
      Intersecting lines are separated into individual line segments
      at the point of intersection.
      Polygon and chain-node topology present. All polygons have a
      label.  All polygons close. Polygons intersecting the neatline
      are closed along the border.  Segments making up the outer and
      inner boundaries of a polygon tie end-to-end to completely
      enclose the area.  Point data are represented by two sets of
      coordinate pairs, each with the same coordinate values.
      All nodes are represented by a single coordinate pair which
      indicates the beginning or end of a line segment.

    Completeness_Report:
      None of the base map data (roads, washes, etc.) from
      Dickinson's (1992) map were digitized nor are represented in
      this database.

    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report:
          The horizontal positional accuracy is probably no better than
          +/- 100 meters.
          The base for Dickinson's (1992) map is believed to be two
          U. S. Geological Survey 1:250,000 scale sheets spliced at
          the 32nd degree parallel and enlarged in scale to 1:125,000.
          Inaccuracies in the digital data would include inherent
          errors in Dickinson's (1992) map.

    Lineage:
      Source_Information:
        Source_Citation:
          Citation_Information:
            Originator: Dickinson, W.R.
            Publication_Date: 1992
            Title: Geologic map of Catalina Core Complex and San Pedro Trough
            Geospatial_Data_Presentation_Form: map
            Series_Information:
              Series_Name: Contributed Map
              Issue_Identification: CM-92-C
            Publication_Information:
              Publication_Place: Tucson, AZ
              Publisher: Arizona Geological Survey
        Source_Scale_Denominator: 125,000
        Type_of_Source_Media: paper
        Source_Time_Period_of_Content:
          Time_Period_Information:
            Single_Date/Time:
              Calendar_Date: 1992
          Source_Currentness_Reference: publication date
        Source_Citation_Abbreviation: Dickinson (1992)
        Source_Contribution:
          geologic features; contacts, faults, folds, point
          observations, and rock units.

      Process_Step:
        Process_Description:
          A paper copy of the geologic map (Dickinson, 1992) map was
          obtained and scanned at 300 dpi to create an 8-bit grayscale
          TIFF.  The TIFF was registered to an ArcInfo coverage
          (dataset) of tics which had been mathematically generated
          in ArcInfo then projected to the Universal Transverse
          Mercator (UTM) projection.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          A dataset (CCC125K) with arc and polygon topology was
          created from the same mathematically generated and projected
          set of tics.  Items (fields) were added to its arc attribute
          table (.aat) and polygon attribute table (.pat) as needed.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          Arcs were digitized and attributed on-screen in a 'heads-up'
          fashion with the image of the geologic map (Dickinson, 1992)
          as background.  Each arc was attributed as soon as it was
          digitized.  Attribute selections were entered via an
          on-screen menu for quality control purposes.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          Check plots on mylar were produced for each sector.  First,
          generic line symbols were used to proof the locational
          fidelity of the linework to Dickinson (1992).  Later, check
          plots with symbolized lines were produced to check for
          attributional fidelity to the source map.  Updates to the
          CCC125K dataset were made as needed.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          Polygon topology was re-built.  Polygons were attributed in
          the 'heads-up' fashion mentioned previously.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          Check plots were produced to proof for polygon attributional
          fidelity to Dickinson (1992).  Polygons were edited
          as needed.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          An ArcInfo dataset (CCCPNT) with point topology was created.
          Items were added to the dataset's point attribute table (.pat)
          as needed.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          Points were digitized and attributed in the same 'heads-up'
          fashion.  Check plots were produced to proof locational,
          rotational, and other attributional qualities of the points.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          Look-up tables for the CCC125K and CCCPNT datasets were
          defined and populated.
        Process_Date: 2000

      Process_Step:
        Process_Description:
          Rock unit annotation was captured for the CCC125K dataset
          and annotation strings were repositioned as needed.  Dip
          values were captured for the necessary points in the CCCPNT
          dataset and repositioned as needed.
        Process_Date: 2001

      Process_Step:
        Process_Description:
          Arcs representing "plated" faults on the source map were
          re-coded as thrust faults (linecode = 171 or linecode = 173)
          in the arc attribute table (CCC125K.AAT). (Descriptions for
          the linecodes are given in the CCC125K.ST2 look-up table;
          however, for archival purposes, Dickinson's (1992) original
          line descriptions are given in the ORIG_DESC item in the
          CCC125K.AAT file.)
        Process_Date: 2001

      Process_Step:
        Process_Description:
          First draft of metadata created by D.M. Hirschberg using
          FGDCMETA.AML ver. 1.2 05/14/98
        Process_Date: 20010221

      Process_Step:
        Process_Description:
          Polygons designated by Mark Gettings, U. S. Geological Survey
          were grouped into regions and each region was attributed with
          the allochthon name according to Dickinson (1992).
        Process_Date: 2002

  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: -111.0
              Latitude_of_Projection_Origin: 0.000000
              False_Easting: 500000.000000
              False_Northing: 0.0000000
        Planar_Coordinate_Information:
          Planar_Coordinate_Encoding_Method: coordinate pair
          Coordinate_Representation:
            Abscissa_Resolution: 0.000256
            Ordinate_Resolution: 0.000256
          Planar_Distance_Units: meters
      Geodetic_Model:
        Horizontal_Datum_Name: North American Datum of 1927
        Ellipsoid_Name: Clarke 1866
        Semi-major_Axis: 6378206.400000
        Denominator_of_Flattening_Ratio: 294.978698

  Entity_and_Attribute_Information:
    Overview_Description:
      Entity_and_Attribute_Overview:
        The Catalina Core Complex and San Pedro Trough 125k GIS includes
        a geologic arc attribute table, CCC125K.AAT, that relates to the
        CCC125K.CON (contact look-up table), CCC125K.ST2 (structure look-up
        table), and CCC125K.REF (source reference look-up table) files;
        a rock-unit polygon attribute table (CCC125K.PAT) that relates
        to the CCC125K.RU (rock-unit look-up table) and CCC125K.REF
        (source reference lookup table) files; an allochthon region attribute table,
        (CCC125K.PATALLOCH) that relates to the CCC125K.REF (source
        reference lookup table) file; and a point attribute table, CCCPNT.PAT,
        that relates to the CCCPNT.REF (source reference look-up table) file.

      Entity_and_Attribute_Detail_Citation:
        A detailed description of the items in the Catalina Core
        Complex and San Pedro Trough 125k database are given in the text
        of the Open-File Report 02-365 available in Adobe Acrobat PDF
        format on the World Wide Web at
        http://geopubs.wr.usgs.gov/open-file/of02-365/

  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey
        Contact_Instructions:
          This report is only available in an electronic format at the
          following URL = http://geopubs.wr.usgs.gov/open-file/of02-365
          or via anonymous FTP from geopubs.wr.usgs.gov, in the
          directory pub/open-file/of02-365.

    Distribution_Liability:
      The U.S. Geological Survey (USGS) provides these geograpic 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 the delivery, installation,
      operation, or support by USGS.
      This spatial digital database for the geologic map of Catalina
      Core Complex and San Pedro Trough is not meant to be used or
      displayed at any scale larger than 1:125,000 (for example,
      1:100,000 or 1:24,000).

    Standard_Order_Process
      Digital_Form
        Digital_Transfer_Information
          Format_Name: ArcInfo Export format, Adobe PDF
          Format_Version_Number: ArcInfo 7.2.1 and 8.1
          Format_Information_Content: Attributed line, polygon, and point data
          File_Decompression_Technique: No compression applied
          Transfer_Size: 40.5 MB
        Digital_Transfer_Option
          Online_Option
            Computer_Contact_Information
              Network_Address 
                Network_Resource_Name:
                  <http://geopubs.wr.usgs.gov/open-file/of02-365>
      Fees: none

  Metadata_Reference_Information:
    Metadata_Date: 2001
    Metadata_Review_Date: 2001
    Metadata_Contact:
      Contact_Information:
        Contact_Organization_Primary:
          Contact_Organization: U.S. Geological Survey
          Contact_Person: Douglas Hirschberg
        Contact_Position: GIS Specialist
        Contact_Address:
          Address_Type: mailing and physical address
          Address: 520 N. Park Ave, Suite 355
          City: Tucson
          State_or_Province: AZ
          Postal_Code: 85719
          Country: USA
        Contact_Voice_Telephone: (520) 670-5514
        Contact_Facsimile_Telephone: (520) 670-5571
        Contact_Electronic_Mail_Address: dmhirsch@usgs.gov
    Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998
    Metadata_Access_Constraints: none
    Metadata_Use_Constraints: none


1University of Arizona, 520 N. Park Ave., Tucson, Arizona 85719
2U.S. Geological Survey, 520 N. Park Ave., Tucson, Arizona 85719 
	

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