Identification_Information: Citation: Citation_Information: Originator: Hirschberg, Douglas M. (Digital Compiler) Originator: Pitts, G. Stephen (Digital Compiler) Originator: Melcher, Henry L.(Digital Compiler) Originator: Bliss, James D. (Digital Editor) Publication_Date: 20010420 Title: Digital data for construction material sources reported by the Arizona Department of Transportation in 1977 for Maricopa County, Arizona Edition: Version 1.0, April 20, 2001 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 01-122 Publication_Information: Publication_Place: Tucson, AZ Publisher: U.S. Geological Survey Online_Linkage: Description: Abstract: The data set marpits1 is an ArcInfo coverage of point features representing pit locations and attribution data captured from an atlas of map sheets and pit data sheets titled "A Materials Inventory of Maricopa County [Arizona]" by the Arizona Highway Department (AHD), now named the Arizona Department of Transportation (ADOT), hereafter referred to as the 'Source'. Pit locations were represented by point symbols in the Source map sheets. Points were digitized from the Source map sheets. Selected attribute data were collected from the Source pit data and map sheets. In the Source introduction it states: > "The pit location maps show the location of all > pits bearing Materials Services serial numbers. > Other sources are not shown. The plotted locations > are as close as possible to the true location > as the scale of the map will allow." The point attribute data, captured from the Source pit data sheets are > "designed to show test results (sieve analysis, > plasticity index, and abrasion) for the usable > material within each ADOT pit." Purpose: U. S. Geological Survey scientists desired to have the data presented in the Source in a digital format to use in GIS and spreadsheet software programs for aggregate models and aggregate assessment. Supplemental_Information: The digital editor and digital compilers of the GIS data set made certain adjustments to the data to make them complete and usable in a GIS. These adjustments include adding points locations for records in the accompanying Source pit data sheets where no point representation existed on the Source map sheets, adding attribution data to the furthest extent possible for points on the Source map sheets without entries in the accompanying Source pit data sheets, appending a letter to the pit number of repeated (duplicate) pit numbers to make them unique and correspond one-to-one with a record in the Source pit data sheets, and adding a '-999' to represent 'No data' or 'No observation' for blank entries in the pit data sheets. Table 3 in the Open-File Report text describes the actions taken to insure data consistency and uniqueness of the individual points. An accompanying ArcInfo arc coverage called marbase of the generalized Maricopa County boundary, and generalized major roadways and generalized major hydrography of Maricopa County has been included to give a general reference of pit location in proximity to natural and man-made features. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1977 Currentness_Reference: 1974 to 1977 Status: Progress: Complete Maintenance_and_Update_Frequency: None Planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -113.4 East_Bounding_Coordinate: -111.1 North_Bounding_Coordinate: 34.0 South_Bounding_Coordinate: 32.5 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: geology Theme_Keyword: aggregate Theme_Keyword: industrial materials Theme_Keyword: materials survey Theme_Keyword: engineering properties Theme_Keyword: physical properties Place: Place_Keyword_Thesaurus: none Place_Keyword: Maricopa County Place_Keyword: State of Arizona Access_Constraints: none Use_Constraints: These data are not to be used at scales greater than 1:176,306. Any data sets or hardcopies utilizing these data sets shall clearly indicate their source. If the user has modified the data in any way he or she is obligated to describe the types of modifications he or she has performed. User specifically agrees not to misrepresent these data sets, nor to imply that changes he or she made were approved by the U.S. Geological Survey or the Arizona Department of Transportation (ADOT). Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: James D. Bliss Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 520 N. Park Ave., Suite 355 City: Tucson State_or_Province: AZ Postal_Code: 85719-5035 Country: USA Contact_Voice_Telephone: (520) 670-5502 Contact_Facsimile_Telephone: (520) 670-5571 Contact_Electronic_Mail_Address: jbliss@usgs.gov Data_Set_Credit: The authors wish to thank Michelle Perez for helping in the capture of the attribution data and Richard Ahern, Arizona State Land Department, for reviewing the data presented in the marpits1 data set with the data in the Source pit data sheets. Native_Data_Set_Environment: SunOS, 5.6, sun4u UNIX ARC/INFO version 7.2.1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attribution data captured from the Source pit data sheets were compared to the Source to check for typographical errors. Hard copy maps were produced with the pit number labeled for each pit location and manually checked. Pit locations were infrequently found to have legal descriptions in the Source pit data sheets inconsistent with the displayed pit location on the Source map sheets. No attempt was made to update the legal descriptions shown in the Source pit data sheets. Logical_Consistency_Report: Point features present. Points were digitized at the center of each symbol representing a pit location on the Source map sheet. Where two or more pit number labels pointed to the same symbol a point was added for each of the labels, thus some points will overlap when displayed at the scale at which the data were digitized (1:176,306). In some cases one of the points may have been digitized slightly off-center. Completeness_Report: All pit locations depicted on the Source map sheets or with a record in the Source pit data sheets were captured. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Maps prepared using the digitized points overlain on the Source map sheets on a light table and suggest that the locational accuracy for the digitized points is no better than 2 millimeters (1175 feet or 358 meters at scale). Plots of the pit locations over a Public Land Survey sections GIS data set available form the Arizona State Land Department produced maps to display pit locations within PLSS sections. The result showed consistent locational fidelity between pit location and PLSS quarter-section in the digital data as compared to the Source. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Materials Services, Arizona Department of Transportation, Highway Division Publication_Date: 1977 Title: A Materials Inventory of Maricopa County (Arizona) Geospatial_Data_Presentation_Form: atlas Series_Information: Series_Name: Arizona Materials Inventory Issue_Identification: none Publication_Information: Publication_Place: Phoenix, Arizona Publisher: Reproduction Section, Arizona Department of Transportation Source_Scale_Denominator: 176306 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1977 Source_Currentness_Reference: 1977, date of publication Source_Citation_Abbreviation: Source Source_Contribution: pit locations and attributes Process_Step: Process_Description: Data from the Source pit data sheets were entered into an Microsoft Excel spreadsheet. The Source map sheets of pit locations consisted of 11 sheets bound in an atlas. Since the data was to be captured via a digitizer tablet, photocopies were made of the each of the Source map sheets. The digitizer was coordinated to within a RMS error of 0.004 for each digitizing session. At least four tic locations were determined and labeled on each map photocopy. The Source map sheets did not always have known locations to use for control points (tics), requiring that a control point be added along a known longitude-latitude line or State-Plane grid line. Pit locations on the Source map sheet were digitized on-center of the pit location symbol or in some cases very slightly off- center (see the logical consistency section), and the pit number was attributed. If a pit number was used more than once a letter was appended to make each pit number unique. Table 3 in the Open-File Report text describes the actions taken to insure data consistency and uniqueness of the individual points. Each of the digital data sets of the Source map sheets were transformed into a common projection then joined together to form one data set for the county. Process_Date: 1997 Process_Step: Process_Description: Check plots were produced for each map sheet data set to proof for locational fidelity to the maps and to proof for pit number attributional correctness. Corrections and additions were made as needed. Process_Date: 2000 Process_Step: Process_Description: First draft of metadata created by D. M. Hirschberg using FGDCMETA.AML ver. 1.2 05/14/98 on ARC/INFO data set marpits1 Process_Date: 20001122 Process_Step: Process_Description: Downloaded SDTS-DLG data 1:2,000,000 of boundaries, roadways, and hydrography from USGS web site to create base map data layer. Created an ArcInfo coverage and coded arcs as needed. Process_Date: 2001 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 916 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: State Plane Coordinate System 1927 State_Plane_Coordinate_System: SPCS_Zone_Identifier: 3176 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9999 Longitude_of_Central_Meridian: -111 55 00 Latitude_of_Projection_Origin: 31 00 00 False_Easting: 152400.30480 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 65.249909375 Ordinate_Resolution: 65.249909375 Planar_Distance_Units: Feet Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: > >ITEMS IN MARPITS1.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 4 12 F 3 > 5 PERIMETER 4 12 F 3 > 9 MARPITS1# 4 5 B - > 13 MARPITS1-ID 4 5 B - > 17 PITNUM 5 6 C - > 22 ORDER 4 5 I - > 26 MAP 2 3 C - > 28 QTR 2 3 C - > 30 SEC 2 3 C - > 32 TWP 3 4 C - > 35 RNG 3 4 C - > 38 HI_CLASS 4 5 C - > 42 MATERIAL 30 31 C - > 72 PI 4 5 C - > 76 ABR_500 4 5 I - > 80 SWELL_24 7 8 N 2 > 87 THR_QTR 4 5 I - > 91 NUM_4 4 5 I - > 95 NUM_8 4 5 I - > 99 NUM_40 4 5 I - > 103 NUM_200 4 5 I - > 107 SOURCE 4 4 I - > > BRIEF EXPLANATION OF ITEMS ADDED BY THE AUTHORS TO THE > MARPITS1 POINT DATA SET: > (items automatically generated by ArcInfo not detailed) >--------------------------------------------------------- > PITNUM -The pit number of the location. > > ORDER -The ascending numeric order of the pit number. > > MAP -The map sheet (from Source) of the pit. > > QTR -Public Land Survey quarter-section or half-section of > the pit location. nw = northwest, ne = northeast, > sw = southwest, se = southeast, w2 = western-half, > n2 = northern-half and so on. > > SEC -Public Land Survey section of the pit location. > > TWP -Public Land Survey township of the pit location. > > RNG -Public Land Survey range of the pit location. > > HI_CLASS -Highest classification for material found in the pit. > The following are the highest class designations for > test data representing at least half or more of the > total depth of the pit: > MA--mineral aggregate > AB--aggregate base > SM--select material > BR--borrow, no limits set > CM--cover material (no specification provided) > SB--special backfill (no specification provided) > SS--subgrade seal > UK--unknown > > MATERIAL -Material types (clay, sand, gravel, caliche, etc. > Abreviations used for various materials found in > each pit: [Classification scheme includes a mix of > material types (ash, caliche, cinder, clay) and > classification of material by size (boulders, silty)] > ASH--ash; AND--andesite; BLDR--boulders; > BST--basalt, malpais; CAL--caliche; CDR--cinders; > CGM--conglomerate; CKR-clinkers; CLY--clay; > COB--cobbles; DEC--decomposed; DIRT--dirt; > GTE--granite; GVL--gravel; GYP--gypsum; LAV--lava; > LOM--loam; LST--limestone; PUM--pumice; RCK--rock; > RHY--rhyolite; SH--shale; SLT--silt; SLTY--silty; > SND--sand; SS--sandstone; TRAV--travertine > *Note that many of these abbreviations may not be > found in the data as this list is applicable to data > for all counties for which data has been collected. > > PI -(Plasticity Index) A measure of sensitivity that aggregate > has to moisture change and is important when aggregate is > used in Portland cement or asphalt concrete. White (1991, > p. 13-42) defines PI as "the difference in the Atterberg > liquid limit and plastic limit moisture contents." It is a > value without a unit. A PI of 4 is the maximum allowed as > stipulated in American Society of Testing Material (ASTM) > test D 3515 for materials used in asphalt concrete mixtures > (White, 1991). The Arizona Highway Department (1972) used > several PI standards. These include ones where PI was not > detected or was to be less than 5 or 10 depending on > aggregate classification. Testing was to be executed in > accordance with the requirements of American Association > of State Highway and Transportation Officers T 90 > (AHD, 1972). Maximum allowable PI values are dependent on > which of the 50 categories of aggregate types are in effect. > When testing determined no PI, a "NP" (no plasticity) was > entered in the ADOT (1977) table. The Open-File Report > authors have changed all these "NP" to zero and entered > -999 when fields were without values. > > ABR_500 -Los Angeles (LA) abrasion test (500 rotations). > The test used to evaluate the resistance of a coarse > aggregate to degradation by abrasion and impact is the > Los Angeles abrasion test (Meyer and Zeinak 1991). > In accordance with ADOT (1990, p. 718) standard > specifications "the percent of wear of coarse aggregate > at 500 revolutions, when tested in accordance with the > requirements of American Association of State Highway > Transportation Officials (AASHTO) test T 96, shall not > exceed 40." The same requirement is also specified for > the class of aggregate 1 to 4 for material used in > subbases and bases (ADOT, 1990, p. 140). The detail of > Los Angeles abrasion testing procedures may have > changed so the results found in this data release may > not be consistent with current specifications. > Los Angeles abrasion test results are found in just 8 > percent of the pits listed in the inventory. > > SWELL_24 -Volume change--swell (24 hours). > Data are available giving maximum 24-hour volume > change (AHD, 1972). Procedures and standards > applicable at the time of the test are not given in > the inventory but likely may have been AASHTO 101, > Method B (AHD, 1972, Table 703-1 and 704-1). These > specifications set the maximum allowed volume increase > to 0.06. This is the maximum for all classes of > mineral aggregate and one class of aggregate used for > cover materials and slurry seal. > > THR_QTR -Percent material passing the 3/4 inch sieve. Materials > passing the 3/4 inch mesh sieve are 19 mm or less. > > NUM_4 -Percent material passing the no. 4 sieve. Materials > passing the no. 4 mesh sieve are 4.75 mm or less. > > NUM_8 -Percent material passing the no. 8 sieve. Materials > passing the no. 8 mesh sieve are 2.338 mm or less. > > NUM_40 -Percent material passing the no. 40 sieve. Materials > passing the no. 40 mesh sieve are 0.42 mm or less. > > NUM_200 -Percent material passing the no. 200 sieve. Materials > passing the no. 200 mesh sieve are less than 0.074 mm. > > SOURCE -Numeric value that relates to marpits1.ref look-up > table giving information on the Source. > Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Information Services Contact_Address: Address_Type: mailing address Address: Open-File Reports, Box 25286 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-303-202-4200 Contact_Facsimile_Telephone: 1-303-202-4693 Standard_Order_Process Digital_Form Digital_Transfer_Information Format_Name: ARC/INFO Export format, Adobe PDF Format_Version_Number: ArcInfo 7.2.1 Format_Information_Content: Attributed point data File_Decompression_Technique: No compression applied Transfer_Size: 0.3 MB Digital_Transfer_Option Online_Option Computer_Contact_Information Network_Address Network_Resource_Name: Fees: none 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 the delivery, installation, operation, or support by USGS. These data are not meant to be used or displayed at any scale larger than 1:176,306 (e.g. 1:100,000 or 1:24,000). Metadata_Reference_Information: Metadata_Date: 20010103 Metadata_Review_Date: 20010420 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Robin A. Fields Contact_Position: GIS Lab coordinator 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) 670-5511 Contact_Facsimile_Telephone: (520) 670-5571 Contact_Electronic_Mail_Address: rafields@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