Metadata: Identification_Information: Citation: Citation_Information: Originator: Mitchell W. Reynolds Publication_Date: 2003 Title: Geologic Map of the Hogback Mountain Quadrangle, Lewis and Clark and Meagher Counties, Montana Edition: Version 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Geologic Investigations Series Issue_Identification: I-2773 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/imap/i-2773/ Description: Abstract: The geologic map of the Hogback Mountain quadrangle, scale 1:24,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of an area in the geologically complex southern part of the Montana disturbed belt. In the Hogback Mountain area, rocks ranging in age from Middle Proterozoic through Cretaceous are strongly folded within and under thrust plates of equivalent rocks. Continental rocks of successive thrust plates have been telescoped eastward over a buttress of the stable continent. Erosional remnants of Oligocene andesitic basalt lie on highest surfaces eroded across the strongly deformed older rocks; younger erosion has dissected the terrain deeply, producing Late Tertiary and Quaternary deposits of alluvium, colluvium, and local landslide debris in the valleys and canyons. Different stratigraphic successions are exposed at different structural levels across the quadrangle. In the northeastern part of the quadrangle at the lowest structural level, rocks of the Upper Mississippian Big Snowy Group, including the Kibbey Formation and the undivided Otter and Heath Formations, the overlying Pennsylvanian Amsden and undivided Quadrant and Phosphoria Formations, the Ellis Group, and the Kootenai Formation, are folded and broken by thrust faults. The next higher structural level, the Avalanche Butte thrust plate, exposes strongly folded and, in places, attenuated strata of Cambrian (Flathead Sandstone, Wolsey Shale, Meagher Limestone, and undivided Pilgrim Formation and Park Shale), Devonian (Maywood Formation, Jefferson Formation, and most of the Three Forks Formation), and Mississippian (uppermost part of the Three Forks Formation and Lodgepole and Mission Canyon Limestones) ages. The overlying Hogback Mountain thrust plate contains strongly folded rocks ranging in age from the Middle Proterozoic Greyson Formation to the Upper and Lower Mississippian Mission Canyon Limestone and Cretaceous diorite sills. The highest structural level, the Moors Mountain thrust plate, contains the Middle Proterozoic Greyson and Newland Formations and discontinuous Upper Proterozoic diabase sills. Rocks are complexly folded and faulted across the quadrangle. At the lowest level in the northeastern part of the quadrangle, Upper Mississippian and younger strata are folded along northwest-trending axes and broken by thrust faults that at outcrop level displace the same rocks. The central core of the quadrangle is formed by the Avalanche Butte thrust plate, which contains recumbently folded and thrust faulted Paleozoic rocks. A succession of four tight recumbent folds within the plate have axial traces that trend northwest and north-northwest, and that are both arched and downfolded along east- and northeast-trending axes. Carbonate rocks of the Mission Canyon and Lodgepole Limestones in the upper part of the Avalanche Butte thrust plate exposed in the canyon of Trout Creek are folded and attenuated in stacked east-directed recumbent folds that developed as a succession of folded duplex thrust slices. The exposed remnant of the next higher structural level, the Hogback Mountain thrust plate, contains northeast- and east-trending folds that are inverted on the upper overturned limb of a younger northwest-trending recumbent fold. The Hogback Mountain thrust fault is itself folded and, in its northernmost exposures, is overturned to dip west beneath the overlying Moors Mountain thrust plate. During post-middle Tertiary deformation, the Hogback Mountain thrust fault moved as a normal fault, down on the east. The structurally highest Moors Mountain thrust plate rests on the Avalanche Butte thrust plate in the southwestern part of the quadrangle and across both the Avalanche Butte and Hogback Mountain thrust plates along the northwest edge of the quadrangle. In the central eastern part of the map area, the edge of a large klippen of the Moors Mountain thrust plate rests on a major inverted syncline of the underlying Hogback Mountain thrust plate. At the base of both the contiguous thrust plate and its klippen, the bounding Moors Mountain thrust fault ramps steeply upward from south to north across a structural culmination in underlying thrust plates. In the southwest corner of the quadrangle, strata of the Greyson Formation are faulted down on the west along a normal fault that, in the Nelson quadrangle adjacent on the west, is listric down to the west with the Moors Mountain thrust fault. Movement on the normal fault is younger than middle Oligocene. Purpose: The geologic map of the Hogback Mountain quadrangle provides new geologic information for public use and for use by governmental agencies for land-use planning, including assessment of natural resources, natural hazards, and recreational potential, and for land-use management. The map provides an interpretation of the complex geology and terrain to recreationalists using the Gates of the Mountains Wilderness. The map provides data for scientific interpretation of the geology of part of the south end of the Montana disturbed belt. Supplemental_Information: Map political location: Lewis and Clark and Meagher Counties, Montana Map scale: 1:24,000 Geology mapped in 1976 and 1977 Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ARC/INFO format, this metadata file may include some ARC/INFO-specific terminology. GEOSPATIAL FILES INCLUDED IN THIS DATA SET: hogpoly: polygon coverage containing geologic unit contacts, faults, dikes, and labels hogline: arc coverage containing cross sections, anticlines, synclines hogpoint: point coverage containing strike and dip attitudes of bedding and foliation, and other point-data map entities Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -111.750 East_Bounding_Coordinate: -111.625 North_Bounding_Coordinate: 46.875 South_Bounding_Coordinate: 46.750 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geologic maps Theme_Keyword: geologic structure Theme_Keyword: bedrock geologic units Theme_Keyword: faulting (geologic) Theme_Keyword: folding (geologic) Theme_Keyword: tectonic processes Theme: Theme_Keyword_Thesaurus: American Geological Institute (AGI) Glossary of Geology Theme_Keyword: Montana disturbed belt Theme_Keyword: Lewis and Clark line Theme_Keyword: thrust fault Theme_Keyword: thrust plate Theme_Keyword: recumbent fold Theme_Keyword: klippen Theme_Keyword: strike-slip fault Theme_Keyword: inverted fold Theme_Keyword: detachment zone Theme_Keyword: Moors Mountain thrust fault Theme_Keyword: Moors Mountain thrust plate Theme_Keyword: Hogback Mountain thrust fault Theme_Keyword: Hogback Mountain thrust plate Theme_Keyword: Avalanche Butte thrust plate Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: U.S. Board of Geographic Names (BGN) Geographic Names Information System (GNIS) Place_Keyword: USA Place_Keyword: Montana Place_Keyword: Lewis and Clark County Place_Keyword: Meagher County Place_Keyword: Big Belt Mountains Place_Keyword: Gates of the Mountains Wilderness Place_Keyword: Hogback Mountain Place_Keyword: Middleman Mountain Place_Keyword: Beaver Creek Big Belt Mountains Place_Keyword: Trout Creek Big Belt Mountains Place_Keyword: Getty Oil Company No. 3-10 Federal Hogback Mountain drill hole Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f30049 = Lewis and Clark Place_Keyword: f30059 = Meagher Access_Constraints: none Use_Constraints: None. However, citation of publication reference and acknowledgment of the U.S. Geological Survey would be appreciated in all products that use or are derived from these data. These data should not be used at scales larger than 1:24,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mitchell W. Reynolds Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: P.O. Box 25046 Federal Center, MS 913 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-8007 Contact_Facsimile_Telephone: 303-236-5349 Contact_Electronic_Mail_Address: mwreynol@usgs.gov Data_Set_Credit: Radiometric dating of samples from adjacent areas applicable to this quadrangle was performed by Harald H. Mehnert, U.S. Geological Survey. Technical reviews by Karl K. Kellogg and David A. Lindsey, U.S. Geological Survey, helped improve the quality of the geologic map, illustrations, and text. Sharon A. Smith graciously and painstakingly translated the map data into digital files. Carlos Vulgamott made preliminary digital copy of the map and cross sections. Native_Data_Set_Environment: SunOS, 5.7, sun4d UNIX ARC/INFO version 8.0.2 Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/imap/i-2773/i-2773.gif Browse_Graphic_File_Description: Reduced-size image of the map sheet, 250x210 pixels, 25k bytes. Browse_Graphic_File_Type: GIF Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/imap/i-2773/i-2773.pdf Browse_Graphic_File_Description: Printable representation of map layout, 2.7 MB. Browse_Graphic_File_Type: PDF Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Geologic data were entered in the field directly on the Hogback Mountain topographic base map at a scale of 1:24,000. Location of control and data points was made by instrument resection and by inspection where topographic contours were distinct. Elevations were checked in the field using an altimeter calibrated at base stations and at surveyed elevations from the topographic base map. Data were transferred from field sheets to a scale-stable mylar base map, and separate scale-stable registered overlays were constructed for polygons, lines, symbols, and tags. Color check test plots were compared carefully to the original geologic map, and corrections were made as needed. The map has been thoroughly reviewed for conformity with U.S. Geological Survey stratigraphic nomenclature and editorial standards. Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the author and by the GIS technicians who created/edited the digital database. Automated (ARC/INFO) routines were also used to check the databases for polygon label errors, line or point attribution errors, sliver polygons, dangling arcs, intersection errors, and projection information. Check plots of the map were reviewed by at least two other geologists for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: No features that could be accurately represented at the compilation scale of 1:24,000 were eliminated or generalized. The smallest area represented is about 113 square meters. All geospatial database elements are attributed. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Lines and data points were located in the field by instrument resection and by inspection from the topographic base map where topographic contours are distinct. Elevations were checked in the field using an altimeter calibrated at base stations and at surveyed elevations from the topographic base map. Thus line and points on original field maps generally were located with a vertical position accuracy of less than one contour interval and a horizontal position accuracy of about 15 m. Lines and points were digitized from the scale-stable geologic base map using a digitizer tablet with a resolution of 0.001 inch. Information is added in accordance to U.S. National Map Accuracy Standards, Revised June 17, 1947. 95 percent of points plotted on mylar matched the source map within 1/50 inch. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Billingsley, P.R. Originator: Locke, Augustus Title: Structure of ore deposits in the continental framework Publication_Date: 1939 Publication_Information: Publication_Place: New York Publisher: American Institute of Mining and Metallurgical Engineers Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1939 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Billingsley and Locke (1939) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Folk, R.L. Title: Spectral subdivision of limestone types Publication_Date: 1962 Series_Information: Series_Name: American Association of Petroleum Geologists Memoir Issue_Identification: 1 Publication_Information: Publication_Place: Tulsa, Oklahoma Publisher: American Association of Petroleum Geologists Other_Citation_Details: p. 62-84 Larger_Work_Citation: Citation_Information: Originator: Ham, W. E., (ed.) Title: Classification of carbonate rocks--A symposium Publication_Date: 1962 Series_Information: Series_Name: American Association of Petroleum Geologists Memoir Issue_Identification: 1 Publication_Information: Publication_Place: Tulsa, Oklahoma Publisher: American Association of Petroleum Geologists Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1962 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Folk (1962) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Harrison, J.E. Originator: Reynolds, M.W. Title: Western U.S. continental margin--A stable platform dominated by vertical tectonics in the late Precambrian Publication_Date: 1976 Series_Information: Series_Name: Geological Society of America Abstracts with Programs Issue_Identification: 8 (6) Publication_Information: Publication_Place: Boulder, Colorado Publisher: Geological Society of America Other_Citation_Details: p. 905 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1976 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Harrison and Reynolds (1976) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Hobbs, S.W. Originator: Griggs, A.B. Originator: Wallace, R.E. Originator: Campbell, A.B. Title: Geology of the Coeur d'Alene District, Shoshone County, Idaho Publication_Date: 1965 Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: 478 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1965 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hobbs and others (1965) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Reynolds, M.W. Title: Character and significance of deformation at the east end of the Lewis and Clark line, Montana Publication_Date: 1977 Series_Information: Series_Name: Geological Society of America Abstracts with Programs Issue_Identification: 9 (6) Publication_Information: Publication_Place: Boulder, Colorado Publisher: Geological Society of America Other_Citation_Details: pp. 758-759 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1977 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reynolds (1977) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Reynolds, M.W. Title: Character and extent of basin-range faulting, western Montana and east-central Idaho Publication_Date: 1979 Publication_Information: Publication_Place: Denver, Colorado Publisher: Rocky Mountain Association of Geologists Other_Citation_Details: p. 185-193 Larger_Work_Citation: Citation_Information: Originator: Newman, G.W. (ed.) Originator: Goode, H.D. (ed.) Publication_Date: 1979 Title: RMAG and UGA 1979 Basin and Range Symposium Publication_Information: Publication_Place: Denver, Colorado Publisher: Rocky Mountain Association of Geologists Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1979 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reynolds (1979) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Reynolds, M.W. Originator: Close, T.J. Title: Gates of the Mountains Wilderness and additions, Montana Publication_Date: 1984 Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: 1300, v. 2 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Other_Citation_Details: p. 705-708 Larger_Work_Citation: Citation_Information: Originator: Marsh, S.P. (ed.) Originator: Kropschot, S.J. (ed.) Originator: Dickinson, R.G. (ed.) Title: Wilderness Mineral Potential Publication_Date: 1984 Series_Information: Series_Name: U.S. Geological Survey Professional Paper Issue_Identification: 1300, v. 2 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reynolds and Close(1984) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Reynolds, M.W. Originator: Hays, W.H. Title: Geologic map of the Nelson quadrangle, Lewis and Clark County, Montana Publication_Date: 2003 Series_Information: Series_Name: U.S. Geological Survey Geologic Investigations Series Issue_Identification: I-2774 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reynolds and Hays(2003) Source_Contribution: preliminary geologic information Source_Information: Source_Citation: Citation_Information: Originator: Reynolds, M.W. Originator: Kleinkopf, M.D. Title: The Lewis and Clark line, Montana-Idaho--A major intraplate tectonic boundary Publication_Date: 1977 Series_Information: Series_Name: Geological Society of America Abstracts with Programs Issue_Identification: 9 (7) Publication_Information: Publication_Place: Boulder, Colorado Publisher: Geological Society of America Other_Citation_Details: p. 1140-1141 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1977 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reynolds and Kleinkopf(1977) Source_Contribution: preliminary geologic information Process_Step: Process_Description: Polygons, lines, and points representing geologic features and data points were digitized from scale-stable compilation materials using ARC/INFO software. Process_Date: 2001 Process_Step: Process_Description: Draft check plots of the geologic map and explanation were created and submitted for peer review. Geologists reviewed the plots for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Revisions were made to geospatial database as needed. Process_Date: 2001 Process_Step: Process_Description: First draft of metadata created by Sharon Smith using FGDCMETA.AML ver. 1.32 01/11/99 Process_Date: 2001 Process_Step: Process_Description: Geospatial database files and metadata were quality checked for completeness and consistency. Process_Date: 2001 Process_Step: Process_Description: Database files, metadata, and check plots were edited by the USGS Central Publications Group, and revisions made to the geospatial database as needed. Process_Date: 2001 Process_Step: Process_Description: Final preparation of the geospatial database for distribution, and preparation of map information for publication. Process_Date: 2001-2002 Process_Step: Process_Description: Creation of original metadata record Process_Date: 20021203 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Theodore R. Brandt, Sharon Smith Contact_Address: Address_Type: mailing Address: Box 25046, Federal Center, MS-913 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-1901, 303-236-4610 Contact_Electronic_Mail_Address: tbrandt@usgs.gov, ssmith@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: Point SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Polyconic Polyconic: Longitude_of_Central_Meridian: -111.625 Latitude_of_Projection_Origin: 46.75 False_Easting: 0.00000 False_Northing: 0.00000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 10 Ordinate_Resolution: 10 Planar_Distance_Units: Meters 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: >--------------------------------------------------------------- >COVERAGE NAME: hogpoly.pat >--------------------------------------------------------------- >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? >1 AREA 8 18 F 5 - >9 PERIMETER 8 18 F 5 - >17 HOGBACKPOLY# 4 5 B - - >21 HOGBACKPOLY-ID 4 5 B - - >25 LABEL 10 10 C - - >35 SHADESYM 4 4 I - - >39 DESCRIPTION 100 100 C - DESC - >139 PATTERN 10 10 I - - >------------------------------------ >USER-DEFINED ITEMS IN HOGPOLY.PAT: >------------------------------------ >ITEM NAME: LABEL >DATABASE ITEM STRUCTURE: 10,10,C,0 >DESCRIPTION text description of feature type >ITEM VALUES FOR 'LABEL': >Cf >Cm >Cpp >Cw >DCu >Dj >Dm >Jme >Khd >Kk >MDt >Mbk >Mbu >Ml >Mm >OGb >PPpq >Pa >QTg >Qa >Ql >Qog >Yg >Yn >ITEM NAME: SHADESYM >DATABASE ITEM STRUCTURE: 4,4,I,0 >DESCRIPTION shade symbol value from shadeset color524.shd to fill polygons >ITEM VALUES FOR 'SHADESYM': >0 >4 >30 >52 >55 >60 >71 >100 >102 >143 >164 >233 >261 >263 >264 >274 >300 >304 >346 >410 >453 >511 >530 >533 >611 >ITEM NAME: DESCRIPTION >DATABASE ITEM STRUCTURE: 100,100,C,0 >DESCRIPTION text description of feature type >ITEM VALUES FOR 'DESCRIPTION': >Flathead Sandstone (Middle Cambrian) >Meagher Limestone (Middle Cambrian) >Pilgrim Formation and Park Shale, undivided (Upper and Middle Cambrian) >Wolsey Shale (Middle Cambrian) >Devonian and Cambrian rocks undivided >Jefferson Formation (Upper Devonian) >Maywood Formation (Upper and Middle Upper Devonian) >Morrison Formation and Ellis Group undivided (Jurassic) >Hornblende diorite (Upper Cretaceous) >Kootenai Formation (Lower Cretaceous) >Big Snowy Group, Kibbey Formation (Upper Mississippian) >Big Snowy Group, Health and Otter Formations, undivided (Upper Mississippian) >Three Forks Formation (Lower Mississippian and Upper Devonian) >Lodgepole Limestone (Lower Mississippian) >Mission Canyon Limestone (Upper and Lower Mississippian) >Basalt (Oligocene) >Amsden Formation (Pennsylvanian) >Phosphoria and Quadrant Formations, undivided (Permian and Pennsylvanian) >Alluvium (Holocene) >Landslide deposits (Holocene and Pleistocene) >Old gravel (Holocene and Pleistocene) >Older gravel (Pleistocene and Pliocene) >Greyson Formation (Belt Supergroup, Middle Proterozoic) >Newland Formation (Belt Supergroup, Middle Proterozoic) >Diorite sills (Upper Proterozoic) >ITEM NAME: PATTERN >DATABASE ITEM STRUCTURE: 10,10,I,0 >DESCRIPTION Indicates cross hatch sections >ITEM VALUES FOR 'PATTERN': >0 >101 >******************************************************************************* >--------------------------------------------------------------- >COVERAGE NAME: hogpoly.aat >--------------------------------------------------------------- >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? >1 FNODE# 4 5 B - - >5 TNODE# 4 5 B - - >9 LPOLY# 4 5 B - - >13 RPOLY# 4 5 B - - >17 LENGTH 8 18 F 5 - >25 HOGBACKPOLY# 4 5 B - - >29 HOGBACKPOLY-ID 4 5 B - - >33 LINECODE 4 4 I - - >37 DESCRIPTION 80 80 C - DESC - >------------------------------------ >USER-DEFINED ITEMS IN HOGPOLY.AAT: >------------------------------------ >ITEM NAME: LINECODE >DATABASE ITEM STRUCTURE: 4,4,I,0 >DESCRIPTION set lineset values for line coding >ITEM VALUES FOR 'LINECODE': >1 >2 >3 >4 >15 >20 >22 >24 >26 >35 >51 >176 >183 >184 >216 >217 >218 >220 >221 >222 >223 >227 >321 >328 >330 >ITEM NAME: DESCRIPTION >DATABASE ITEM STRUCTURE: 80,80,C,0 >DESCRIPTION text description of linear feature type >ITEM VALUES FOR 'DESCRIPTION': >contact - approximately located >contact - certain >contact - concealed >contact - inferred >dike - OGb >dike Khd - approximately located >dike Khd - certain >dike Zd - approximately located >dike Zd - certain >fault - approximately located >fault - certain >fault - inferred >fault displacement unknown - concealed >neatline >normal fault - concealed >normal fault - inferred >overturn thrust fault - approximately located >overturn thrust fault - certain >thrust fault - approximate location queried >thrust fault - approximately located >thrust fault - certain >thrust fault - concealed >thrust fault - inferred >thrust fault - inferred, queried >****************************************************************************** >--------------------------------------------------------------- >COVERAGE NAME: hogline >--------------------------------------------------------------- >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? >1 FNODE# 4 5 B - - >5 TNODE# 4 5 B - - >9 LPOLY# 4 5 B - - >13 RPOLY# 4 5 B - - >17 LENGTH 8 18 F 5 - >25 HOGBACKLINE# 4 5 B - - >29 HOGBACKLINE-ID 4 5 B - - >33 LINECODE 3 3 I - - >36 DESCRIPTION 80 80 C - DESC - >116 LINESET 30 30 C - - >------------------------------------ >USER-DEFINED ITEMS IN HOGLINE.AAT: >------------------------------------ >ITEM NAME: LINECODE >DATABASE ITEM STRUCTURE: 3,3,I,0 >DESCRIPTION set lineset values for line coding in hogline >ITEM VALUES FOR 'LINECODE': >1 >60 >61 >62 >80 >81 >92 >93 >94 >112 >113 >114 >121 >332 >ITEM NAME: DESCRIPTION >DATABASE ITEM STRUCTURE: 80,80,C,0 >DESCRIPTION text description of linear feature type >ITEM VALUES FOR 'DESCRIPTION': >anticline - approximately located >anticline - certain >anticline - inferred >inverted anticline - approximately located >inverted syncline - approximately located >line of cross-section A >line of cross-section B >line of cross-section C >line of cross-section D >overturned anticline - approximately located >overturned anticline - certain >overturned syncline, approximately located >overturned syncline, certain >overturned syncline, concealed >overturned syncline, inferred >syncline - Approximately located >syncline - certain >syncline - concealed >syncline - inferred >ITEM NAME: LINESET >DATABASE ITEM STRUCTURE: 30,30,C,0 >DESCRIPTION identifies linesets used for linear symbolset >ITEM VALUES FOR 'LINESET': >geol_sfo.lin >plotter >******************************************************************************** >--------------------------------------------------------------- >COVERAGE NAME: hogpoint >--------------------------------------------------------------- >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? >1 AREA 8 18 F 5 - >9 PERIMETER 8 18 F 5 - >17 HOGBACKPT# 4 5 B - - >21 HOGBACKPT-ID 4 5 B - - >25 SYMBOL 3 3 I - - >28 ROTATION 3 3 I - AZIMUTH - >31 INCLINATION 3 3 I - DIP - >34 DESCRIPTION 80 80 C - DESC - >118 SYMSET 10 10 C - - >------------------------------------ >USER-DEFINED ITEMS IN HOGPOINT.PAT: >------------------------------------ >ITEM NAME: SYMBOL >DATABASE ITEM STRUCTURE: 3,3,I,0 >DESCRIPTION value used to identify symbol from markerset >ITEM VALUES FOR 'SYMBOL': >1 >2 >3 >6 >7 >15 >101 >109 >114 >133 >742 >743 >746 >747 >ITEM NAME: ROTATION >DATABASE ITEM STRUCTURE: 3,3,I,0 >DESCRIPTION compass orientation of feature, in degrees >ITEM VALUES FOR 'ROTATION': >0 >4 >7 >13 >20 >30 >35 >37 >57 >58 >60 >65 >67 >70 >73 >80 >82 >83 >85 >88 >90 >92 >94 >95 >98 >100 >102 >103 >105 >107 >108 >110 >112 >113 >114 >115 >116 >117 >118 >120 >125 >127 >128 >130 >132 >133 >135 >137 >140 >142 >143 >145 >147 >148 >150 >153 >155 >157 >160 >162 >163 >165 >166 >168 >170 >173 >175 >177 >180 >185 >195 >205 >210 >213 >215 >220 >225 >230 >235 >236 >240 >247 >248 >255 >257 >258 >260 >262 >270 >273 >274 >275 >279 >283 >287 >290 >293 >294 >297 >300 >303 >305 >310 >312 >313 >315 >318 >327 >330 >335 >338 >342 >345 >348 >350 >ITEM NAME: INCLINATION >DATABASE ITEM STRUCTURE: 3,3,I,0 >DESCRIPTION inclination from horizontal of feature, in degrees >ITEM VALUES FOR 'INCLINATION': >0 >5 >7 >8 >10 >12 >13 >15 >17 >18 >20 >22 >23 >24 >25 >26 >27 >28 >30 >31 >32 >33 >34 >35 >36 >37 >38 >40 >42 >43 >45 >46 >47 >48 >50 >52 >53 >55 >57 >60 >64 >65 >66 >67 >68 >70 >74 >75 >76 >77 >80 >83 >85 >90 >ITEM NAME: DESCRIPTION >DATABASE ITEM STRUCTURE: 80,80,C,0 >DESCRIPTION text description of each symbol >ITEM VALUES FOR 'DESCRIPTION': >Dip of fault surface >Dry oil well >bedding overturned > 180 degrees - strike and dip >Zd outcrop too small to show at map scale >horizontal bedding >inclined bedding - strike and dip >inclined cleavage - strike and dip >overturned bedding - strike and dip >prospect >quartz vein >spring >vertical bedding >ITEM NAME: SYMSET >DATABASE ITEM STRUCTURE: 10,10,C,0 >DESCRIPTION defines markersets used >ITEM VALUES FOR 'SYMSET': >GEOSCAMP2 >MUNICIPAL >OILGAS >USGS Entity_and_Attribute_Detail_Citation: http://pubs.usgs.gov/imap/i-2773/i-2773_508.pdf Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: Central Publications Group Address: P.O. Box 25046, Federal Center, MS-902 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Resource_Description: USGS Geologic Investigations Series Map I-2773 Distribution_Liability: Although these data have been subjected to rigorous review and are substantially complete, they are released on the condition that neither the U.S. Geological Survey nor the Unites States Government may be held liable for any damages resulting from their authorized or unauthorized use. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: 8.0.2 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: gzip -d and tar or unzip Transfer_Size: 2 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/imap/i-2773/i-2773.tgz Network_Resource_Name: http://pubs.usgs.gov/imap/i-2773/i-2773.zip Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: 1.0 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: gzip -d and tar or unzip Transfer_Size: 2 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/imap/i-2773/i-2773.tgz Network_Resource_Name: http://pubs.usgs.gov/imap/i-2773/i-2773.zip Fees: none Metadata_Reference_Information: Metadata_Date: 20160613 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Midwest Area Contact_Position: Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/ Contact_Address: Address_Type: mailing address Address: Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none