Identification_Information: Citation: Citation_Information: Originator: Ogden Tweto Publication_Date: 2013 Title: Geologic Map and Sections of the Holy Cross Quadrangle, Eagle, Lake, Pitkin, and Summit Counties, Colorado Edition: 1.1 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Miscellaneous Investigations Series Issue_Identification: I-830 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/imap/i-830/ Description: Abstract: This is a digital edition of the Geologic Map of the Holy Cross Quadrangle, Eagle, Lake, Pitkin and Summit Counties, Colorado, by Ogden Tweto, published originally in 1974. The map encompasses the area of four 7.5-minute quadrangles between latitudes 39Ί15’ and 39Ί 30’ north latitude and 106Ί15’ and 106Ί30’ west longitude in the Sawatch and Gore mountain ranges and upper part of the Arkansas River drainage in central Colorado. The geologic data, captured digitally, are presented here together with images of the original map sheets in PDF format. The Holy Cross geologic map depicts in detail the complex geology at the north end of the Sawatch Range at its junction with the south end of the Gore Range. The ranges are separated in the southern part of the map area by the upper reaches of the Arkansas River and in the northern part by the narrow valley of the upper Eagle River. The continental divide winds across the southern third of the quadrangle to the crest of the Sawatch Range in the southwest corner of the area. At the southeast edge of the map area lies the historic mining town of Leadville. Sixty map units and numerous individual beds and thin units within the principal map units are shown. The units represent six general ages of rocks and sediment exposed. Paleoproterozoic metamorphic rocks, including biotite gneiss, schist, hornblende calc-silicate rocks, and mixed migmatite, diorite and granitic rocks; these rocks are exposed mainly in the northwest third of the quadrangle and support the highest peak in the area, Mount of the Holy Cross (elevation 4,270 m). In the northwest corner of the quadrangle, Mesoproterozoic granitic rocks of the Cross Creek granite, about 1,700 my old, intrude the older sequence of rocks. Exposed in the Sawatch Range across the southwest quarter of the quadrangle, a suite of Mesoproterozoic granitic rocks, the St. Kevin granite, 1360 ±60 my, intrudes the older biotite gneiss and schist and associated metamorphic rocks. Upper Cretaceous and Tertiary dikes and some sills intrude the Precambrian rocks in the range. Paleozoic rocks that range in age from Upper Cambrian though Middle Pennsylvanian support the Gore Range along the eastern quarter of the map area. These strata overlie the Precambrian rocks mainly along a nearly planar surface but locally across relief as much as 50 feet over a Precambrian shear zone. The sequence includes a basal quartzite overlain by interbedded, shale, dolomite, quartzite and sandstone of Upper Cambrian, Ordovician, Devonian and Early Mississippian ages in the lower part, overlain along an erosional surface by dark gray to black shale with thin interbeds of limestone and sandstone of the Belden Shale of Middle Pennsylvanian age. The Leadville Dolomite, below the dark shale, is the host rock for ore deposits at Leadville and neighboring lead-zinc-silver districts. The Middle Pennsylvanian Minturn Formation, about 1,525 m (5,000 feet) thick in turn overlies the Belden and consists primarily of lenticular bodies of arkose, conglomerate, and sandstone, and beds and reefs of limestone and dolomite. Six members and numerous individual beds are mapped in detail within the Minturn Formation. A complex succession of Upper Cretaceous and Paleocene intrusive rocks intrudes the Precambrian metamorphic and Paleozoic sedimentary rocks. The intrusive rocks include granodiorite, quartz latite porphyry, quartz monzonite porphyry, syenite, and diorite. Pliocene or Miocene and Oligocene rhyolite and latite breccia and pipes of rhyolite breccia are present as sills, discordant bodies and pipes, primarily in the eastern quarter of the map. The rhyolite pipes (Pliocene or Miocene) postdate oxidation of Miocene ore deposits. The map records the distribution of each rock type in detail. Identified only from well cuttings in the valley of the Arkansas River is the Dry Union Formation of Pliocene and Miocene age. The formation rests unconformably on all older units and is overlain unconformably by younger deposits of glacial and alluvial origin. Youngest deposits of Holocene and Pleistocene age mapped in the Holy Cross Quadrangle are primarily of glacial origin with local landslide debris, talus, windblown silt and alluvial gravels distinguished in the mountain valleys. Deposits from two glaciations of Bull Lake age and three of Pinedale age line valley walls occupy some mountain valleys and form terminal moraines in the valleys of the Arkansas River and Tennessee Creek. Varved clay that presumably accumulated in a glacial lake of long duration, rests on pre-Tertiary rocks and is overlain by alluvium in Eagle Park. Neoglacial moraines locally rest on the older glacial debris, and alluvium and gravel fill local reaches of streams and some wider valley floors of the principal creeks and headwaters of the Arkansas River. The geologic structure of the quadrangle is complex in geometry and time with a distinct structural and geographic break along the west front of the Gore Range in the eastern quarter of the quadrangle. In general Paleozoic strata intruded by Tertiary and Cretaceous irregular linear plutons and sills of the Gore Range are tilted east from the Swatch Range. These rocks are broken by major normal faults that offset the rocks down to the west or that together with antithetic faults produce grabens. The pattern of faulting in this area is complex with north-trending normal faults separating blocks of densely spaced north-northeast- and northeast- trending faults in the southeast part of the quadrangle. Those densely faulted blocks coincide mainly with Paleocene? and Cretaceous intrusive porphyries. The northern part of the Gore Range within the quadrangle contains fewer faults, concentrated primarily in areas penetrated by Tertiary and Cretaceous sills. Normal faults in those areas also trend primarily north and northeast to east-northeast. Faults in the Range both predate and post-date intrusive bodies and a principal group, responsible for the valley of the Arkansas River is Miocene or younger but pre-glacial deposits. Structures west of the Arkansas River Valley and Eagle Park, mainly within the Sawatch Range, are distinct from those of the Gore Range, in part because of a difference in rock types and in part as a result of deformation and intrusion of Precambrian rocks prior to deposition of the Upper Cambrian and younger rocks. Late Tertiary and early Quaternary faults are present also in the Sawatch Range. A diffuse east-trending zone of hornblende- and calc-silicate gneiss together with numerous Precambrian dikes separates the area of the St. Kevin plutonic suite of middle Mesoproterozoic age in the southwest third of the quadrangle from Paleoproterozoic metamorphic rocks and the Mesoproterozoic intrusive suite of the Holy Cross pluton. A broad zone of shear, the Homestake shear zone, trends northeast across the northwest two-thirds of the quadrangle. A curved shear zone in the center of the quadrangle likely originated as a thrust fault that juxtaposed rocks on the east over those on the west. In the northwestern corner of the quadrangle, Precambrian migmatite and biotite gneiss are interfolded along the same to north-northwest trend as faults and folds in the central area. The early-established direction of folding and faulting in the greater Holy Cross area of the Sawatch Range likely controlled the younger northeast pattern of faulting across the area which ranges in age from post-Pennsylvania to pre- or early- Quaternary. Down-to-the-valley faults form a graben, bounded major faults on the east side of the Arkansas River Valley from Leadville north to Tennessee Pass and bounded on the west side by normal faults from Turquoise Lake north to the south end of Missouri Hill. Eagle Park could be a northern extension of the graben. The Pliocene and Miocene Dry Union Formation was, in part, deposited in and across a low areas of the graben, and in part, is broken by younger faults of the graben. Quaternary deposits overlie the graben but do not seem to be offset by the faults. In the past mineralized veins, mined in parts of the Mount of the Holy Cross quadrangle, have been a major source of wealth. The Sugarloaf and St. Kevin districts have produced significant amounts of silver. The Homestake mine at the head of West Tennessee Creek produced silver and lead from veins bearing siderite and barite. Scattered veins in shear zones along Homestake Creek are mainly argentiferous galena veins; some are quartz and copper. Veins at Holy Cross City produced gold. Other veins in the area have produced gold, silver, and minor amounts of copper. The map text provides references to publications describing the mineralization. Purpose: This map provides geologic information for making land-use decisions and evaluating subsurface water resources. The digtal database of the map was funded by the National Cooperative Geologic Mapping Program of the U.S. Geological Survey. Supplemental_Information: Map political location: Eagle, Lake, Pitkin, and Summit Counties, Colorado Compilation scale: 1:24,000 Base maps used are the U.S. Geological Survey 7.5 minute topographic quadrangles for Mount of the Holy Cross, Homestake Reservoir, Leadville North, and Pando Colorado Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1974 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: none planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -106.50000 East_Bounding_Coordinate: -106.25000 North_Bounding_Coordinate: 39.50000 South_Bounding_Coordinate: 39.25000 Keywords: Theme: Theme_Keyword_Thesaurus: AGI Glossary of Geology Theme_Keyword: Quaternary geology Theme_Keyword: Tertiary geology Theme_Keyword: Cretaceous geology Theme_Keyword: Pennsylanian geology Theme_Keyword: Mississippian geology Theme_Keyword: Devonian geology Theme_Keyword: Ordovician geology Theme_Keyword: Cambrian geology Theme_Keyword: Precambrian geology Theme_Keyword: Holocene geology Theme_Keyword: Pleistocene geology Theme_Keyword: Pliocene geology Theme_Keyword: Miocene geology Theme_Keyword: Oligocene geology Theme_Keyword: Paleozoic geology Theme_Keyword: Paleoocene geology Theme_Keyword: Upper Cretaceous geology Theme_Keyword: Middle Pennsylvanian geology Theme_Keyword: Lower Mississippian geology Theme_Keyword: Upper Devonian geology Theme_Keyword: Middle Ordovician geology Theme_Keyword: Bull Lake glaciation Theme_Keyword: Pinedale glaciation Theme_Keyword: pre-Bull Lake glaciation Theme_Keyword: stream alluvium Theme_Keyword: alluvial fan deposits Theme_Keyword: terrace gravels Theme_Keyword: landslide deposits Theme_Keyword: talus deposits Theme_Keyword: periglacial boulder-creep deposits Theme_Keyword: loess deposits Theme_Keyword: Malta Gravel Theme_Keyword: Dry Union Formation Theme_Keyword: Eagle River Porphyry Theme_Keyword: Lincoln Porphyry Theme_Keyword: Johnson Gulch Porphyry Theme_Keyword: Elk Mountain Porphyry Theme_Keyword: Sacramento Porphyry Theme_Keyword: Pando Porphyry Theme_Keyword: Minturn Formation Theme_Keyword: Belden Formation Theme_Keyword: Leadville Dolomite Theme_Keyword: Harding Sandstone Theme_Keyword: Manitou Dolomite Theme_Keyword: Peerless Formation Theme_Keyword: Sawatch Quartzite Theme_Keyword: St. Kevin Granite Place: Place_Keyword_Thesaurus: U.S. Board of Geographic Names (BGN) Geographic Names Information System (GNIS) Place_Keyword: USA Place_Keyword: Colorado Place_Keyword: Eagle County Place_Keyword: Lake County Place_Keyword: Pitkin County Place_Keyword: Summit County Place_Keyword: Leadville, Colorado Place_Keyword: Pando, Colorado Place_Keyword: Homestake Reservoir Quadrangle Place_Keyword: Leadville Quadrangle Place_Keyword: Mount of the Holy Cross Quadrangle Place_Keyword: Pando Quadrangle Place_Keyword: Gore Range Place_Keyword: Sawatch Range Place_Keyword: Rocky Mountains Place_Keyword: Mount of the Holy Cross Place_Keyword: Mount Zion Place_Keyword: Whitney Peak Place_Keyword: Buckeye Peak Place_Keyword: Homestake Peak Place_Keyword: Bald Eagle Mountain Place_Keyword: Hornsilver Mountain Place_Keyword: Mount Powell Place_Keyword: Cooper Hill Place_Keyword: Taylor Hill Place_Keyword: Missouri Hill Place_Keyword: Yankee Hill Place_Keyword: Loveland Mountain Place_Keyword: Resolution Mountain Place_Keyword: Bear Lake Place_Keyword: Turquoise Lake Place_Keyword: Timberline Lake Place_Keyword: Homestake Lake Place_Keyword: Lost Lakes Place_Keyword: Paradise Lakes Place_Keyword: Sylvan Lakes Place_Keyword: Tunare Lakes Place_Keyword: West Tennessee Lakes Place_Keyword: Half Moon Pass Place_Keyword: Tennessee Pass Place_Keyword: Homestake Reservoir Place_Keyword: Arkansas River Place_Keyword: Arkansas Valley Place_Keyword: Continental Divide Place_Keyword: Continental Divide Trail Place_Keyword: Ski Cooper Ski Resort Temporal: Temporal_Keyword_Thesaurus: Geologic Names Committee Lexicon (Geolex) Temporal_Keyword: Quaternary Temporal_Keyword: Tertiary Temporal_Keyword: Cretaceous Temporal_Keyword: Pennsylvanian Temporal_Keyword: Mississippian Temporal_Keyword: Devonian Temporal_Keyword: Ordovician Temporal_Keyword: Cambrian Temporal_Keyword: Precambrian Temporal_Keyword: Holocene Temporal_Keyword: Pleistocene Temporal_Keyword: Pliocene Temporal_Keyword: Miocene Temporal_Keyword: Oligocene Temporal_Keyword: Paleoocene Temporal_Keyword: Upper Cretaceous Temporal_Keyword: Middle Pennsylvanian Temporal_Keyword: Lower Mississippian Temporal_Keyword: Upper Devonian Temporal_Keyword: Middle Ordovician Access_Constraints: none Use_Constraints: None. Users of this geospatial database and geologic information derived there from should acknowledge the U.S. Geological Survey as the source of the data. Although software enables a user to display images at various scales, map data in this report should not be used at scales greater than 1:24,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Theodore R. Brandt Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing Address: P.O. Box 25046, MS 980 Address: Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-1901 Contact_Electronic_Mail_Address: tbrandt@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/imap/i-830/downloads/I-830_map.pdf Browse_Graphic_File_Description: graphic representation of map layout Browse_Graphic_File_Type: PDF Data_Set_Credit: Theodore Brandt, U.S. Geological Survey, served as author of the GIS database. Mitchell Reynolds, U.S. Geological Survey, Scientist Emeritus, assisted with the metadata abstract. Native_Data_Set_Environment: Windows_XP, Intel ArcInfo version 9.3.1 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data were entered and checked by the cartographer based on the published printed map. The attributes of this geospatial data set consist of text identifiers and numeric codes that indicate the identity of the geologic unit or type of geologic feature, and determine how each feature is colored or symbolized. To check attribute accuracy, a color check plot was visually compared to the geologist's original compilation. Discrepancies between the digital geospatial dataset and the original analog or digital compilation were corrected as needed. Machine-created listings of unique attribute values were used to identify spelling errors or other inconsistencies, and corrections were made as needed. Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the cartographer that created the digital database, and the digital reviewer. Automated (ArcInfo) 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 one other geologist for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: Data are complete: no features that could be accurately represented at the compilation scale of 1:24,000 were eliminated or generalized. The smallest area represented is approximately 50 square meters. All geospatial database elements are attributed. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Most digitized positions on the map that depict distinct contacts between rock formations in the field are estimated to be within 20 m of the actual contact on the land in most instances. Boundaries (lines) between Quaternary units (for example, terrace gravels) that correspond closely to distinct edges of landforms (for example, river terraces) are of comparable accuracy. Boundaries (lines) between some Quaternary units, such as eolian deposits and broad alluvial aprons, are approximately located within an indefinite gradational zone between them. Horizontal positional accuracy is tested by visual comparison of hard copy test plots to source maps or comparing locations of data on a computer monitor to other data layers in the same geographic area. The database contains no elevation data. Accuracy of these digital data indirectly depends on accuracy of the base maps on which the original source geologic maps were compiled. These base maps were made by the U.S. Geological Survey, which routinely checks them for compliance with the National Map Accuracy Standards. Positional accuracy of the digital data is limited to the accuracy of the original published printed map. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Lewis, R. S. Originator: Derkey, P. D. Title: Digital geologic map of part of the Thompson Falls 1:100,000 quadrangle, Idaho Publication_Date: 1999 Series_Information: Series_Name: U.S. Geological Survey Open File Report Issue_Identification: OFR 99-438 Source_Scale_Denominator: 100000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Lewis and Derkey (1999) Source_Contribution: GIS database structure source Process_Step: Process_Description: Geology of eastern half mapped from 1948 to 1953 by Ogden Tweto. Process_Date: 1953 Process_Step: Process_Description: Geology of western half mapped from 1954 to 1959 by Ogden Tweto and R.C. Pearson. Process_Date: 1959 Process_Step: Process_Description: Geologic polygon, line, and point features were digitized and attributed by Ted Brandt in ArcInfo. Process_Date: 2012 Process_Step: Process_Description: Metadata created by Ted Brandt. Process_Date: 2012 Process_Step: Process_Description: Metadata reviewed and revised by Ted Brandt. Process_Date: 2013 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 5 Ordinate_Resolution: 5 Planar_Distance_Units: METERS Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 13 Transverse_Mercator: Scale_Factor_at_Central_Meridian: .9996 Longitude_of_Central_Meridian: -105.0000 Latitude_of_Projection_Origin: 0.00 False_Easting: 500000.0000 False_Northing: 0.0000 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: The data are supplied in ArcInfo export format, ArcView shapefile format, and ArcGIS geodatabase format. DATABASE STRUCTURE - ArcInfo coverage format=========================== This GIS database includes related look-up tables, which store detailed attribute information. This database structure is more fully described in USGS OFR 99-438 (Lewis and Derkey, 1999). The GIS database structure used in the database includes symbol and pattern items in coverage point, polygon (PAT), and arc (AAT) attribute tables for user convenience. ArcInfo relates for each coverage are saved in a file named .rel. Use the RELATE command with the restore argument at the arc prompt to make the relates active. Alternatively, in ArcTools, use the Relate environment: open dialog in the Manage Relates flyout menu under the ArcTools menu to make the relates active. hcgeo coverage: Contains all contact lines and label points for each geologic polygon. In the .pat INFO file the SOURCE item provides a numeric code used to identify the data source for the rock unit. Complete references for the sources listed are listed in the hcgeo.ref file. The LABEL item indicates the rock unit label (abbreviation) used to label unit on map. The MLABEL item indicates the rock unit label from FGDC GeoAge font, using geologic age letter symbols associated with the age of the lithologic units (for example: Triassic, Pennsylvanian, Cambrian). The DESC item defines formal or informal unit name. The SYMBOL item contains the shadeset symbol number used by ArcInfo to plot a filled/shaded polygon. The symbol numbers in this item refer to the wpgcmykg.shd shadeset included with the dataset. The PATTERN item contains the pattern number used in the published version of the map. Patterns that correspond with the pattern numbers are displayed in USGS FGDC-STD-013-2006. There is no ArcInfo shadeset that corresponds to these patterns. In the hcgeo.aat INFO file, the LINECODE item provides a numeric code used to identify type of linear feature. Linecodes less than 100 are used for contacts and boundaries that are described in the hcgeo.con file. Linecodes greater than 100 are used for structures that are described in the hcgeo.str file. The NAME item lists the name given to the linear feature. The SOURCE item lists the numeric code used to identify the data source for the linear feature. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset). Complete references for the sources are listed in the hcgeo.ref file. Related look-up table files are hcgeo.con, hcgeo.str, and hcgeo.ref. In the hcgeo.con INFO file, the LINECODE item indicates the numeric code (a value less than 100) used to identify type of contact or boundary. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset included with the dataset). The TYPE item lists the major type of line (for example, contact, State boundaries, lines of latitude and longitude used for neatlines). The MODIFIER item lists the line type modifier (that is, approximate, concealed, or gradational). No entry implies 'known.' The CERTAINTY item lists the degree of certainty of contact or boundary (that is, inferred or uncertain). No entry implies 'certain.' The DESC item lists the written description or explanation of the contact or boundary. In the hcgeo.str INFO file, the LINECODE item indicates the numeric code (a value greater than 100) used to identify type of structure. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset included with the dataset). The TYPE item lists the major type of line (for example, fault or fold-axis). The HORIZONTAL item refers to the type of horizontal fault movement (for example, left-lateral or right-lateral). No entry implies 'unknown' or no strike-slip movement. The VERTICAL item refers to the type of vertical fault movement (for example, normal). No entry implies 'unknown' or no dip-slip movement. The FOLD item refers to the type of fold (for example, anticline or syncline). The PLUNGE item refers to the type of plunge on fold (that is, horizontal, plunging, plunging in, or plunging out). The ACCURACY item refers to the line type modifier indicating degree of accuracy (that is, approximately located, concealed, gradational). No entry implies 'certain.' The CERTAINTY item lists the degree of certainty of structure (that is, inferred, uncertain). No entry implies 'certain.' The DESC item lists the written description or explanation of the structure. The INFO structure of these files is listed below: >HCGEO.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 HCGEO# 4 5 B - > 21 HCGEO-ID 4 5 B - > 25 SOURCE 4 4 I - > 29 LABEL 10 10 C - > 39 MLABEL 10 10 C - > 49 DESC 250 250 C - > 299 SYMBOL 3 3 I - > 302 PATTERN 3 3 I - >HCGEO.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 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 HCGEO# 4 5 B - > 29 HCGEO-ID 4 5 B - > 33 LINECODE 3 3 I - > 36 NAME 150 150 C - > 186 SOURCE 4 4 I - > 190 SYMBOL 3 3 I - >HCGEO.CON: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 LINECODE 3 3 I - > 4 SYMBOL 3 3 I - > 7 TYPE 10 10 C - > 17 MODIFIER 20 20 C - > 37 CERTAINTY 15 15 C - > 52 DESC 100 100 C - >HCGEO.STR: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 LINECODE 3 3 I - > 4 SYMBOL 3 3 I - > 7 TYPE 10 10 C - > 17 HORIZONTAL 20 20 C - > 37 VERTICAL 20 20 C - > 57 FOLD 15 15 C - > 72 PLUNGE 15 15 C - > 87 ACCURACY 15 15 C - > 102 CERTAINTY 15 15 C - > 117 DESC 100 100 C - > HCGEO.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hcqr coverage: Contains quartz reef or silicified zone lines In the hcqr.aat INFO file, the LINECODE item provides a numeric code used to identify type of linear feature. Linecodes greater than 100 are used for structures that are described in the hcgeo.str file. The NAME item lists the name given to the linear feature. The SOURCE item lists the numeric code used to identify the data source for the linear feature. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset). Complete references for the sources are listed in the hcqr.ref file. Related look-up table files are hcqr.str and hcqr.ref. In the hcqr.str INFO file, the LINECODE item indicates the numeric code (a value greater than 100) used to identify type of structure. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset included with the dataset). The TYPE item lists the major type of line (for example, fault or fold-axis). The HORIZONTAL item refers to the type of horizontal fault movement (for example, left-lateral or right-lateral). No entry implies 'unknown' or no strike-slip movement. The VERTICAL item refers to the type of vertical fault movement (for example, normal). No entry implies 'unknown' or no dip-slip movement. The FOLD item refers to the type of fold (for example, anticline or syncline). The PLUNGE item refers to the type of plunge on fold (that is, horizontal, plunging, plunging in, or plunging out). The ACCURACY item refers to the line type modifier indicating degree of accuracy (that is, approximately located, concealed, gradational). No entry implies 'certain.' The CERTAINTY item lists the degree of certainty of structure (that is, inferred, uncertain). No entry implies 'certain.' The DESC item lists the written description or explanation of the structure. >HCQR.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 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 HCQR# 4 5 B - > 29 HCQR-ID 4 5 B - > 33 LINECODE 3 3 I - > 36 NAME 150 150 C - > 186 SOURCE 4 4 I - > 190 SYMBOL 3 3 I - > >HCQR.STR: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 LINECODE 3 3 I - > 4 SYMBOL 3 3 I - > 7 TYPE 10 10 C - > 17 MODIFIER 20 20 C - > 37 CERTAINTY 15 15 C - > 52 DESC 100 100 C - > >HCQR.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hcxc coverage: Contains geologic cross-section lines In the hcxc.aat INFO file, the LINECODE item provides a numeric code used to identify type of linear feature. Linecodes less than 100 are used for contacts and boundaries that are described in the hcxc.con file. The NAME item lists the name given to the linear feature. The SOURCE item lists the numeric code used to identify the data source for the linear feature. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset). Complete references for the sources are listed in the hcxc.ref file. Related look-up table files are hcxc.con and hcxc.ref. In the hcxc.con INFO file, the LINECODE item indicates the numeric code (a value less than 100) used to identify type of contact or boundary. The SYMBOL item lists the line symbol number used by ArcInfo to plot the line (symbol numbers refer to the geol_sfo.lin lineset included with the dataset). The TYPE item lists the major type of line (for example, contact, State boundaries, lines of latitude and longitude used for neatlines). The MODIFIER item lists the line type modifier (that is, approximate, concealed, or gradational). No entry implies 'known.' The CERTAINTY item lists the degree of certainty of contact or boundary (that is, inferred or uncertain). No entry implies 'certain.' The DESC item lists the written description or explanation of the contact or boundary. >HCXC.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 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 HCXC# 4 5 B - > 29 HCXC-ID 4 5 B - > 33 LINECODE 3 3 I - > 36 NAME 150 150 C - > 186 SOURCE 4 4 I - > 190 SYMBOL 3 3 I - > >HCXC.CON: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 LINECODE 3 3 I - > 4 SYMBOL 3 3 I - > 7 TYPE 10 10 C - > 17 MODIFIER 20 20 C - > 37 CERTAINTY 15 15 C - > 52 DESC 100 100 C - > >HCXC.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hcpts coverage: Contains points recording site-specific observations and measurements, such as strike and dip of bedding In the hcpts.pat INFO file, the PTTYPE item lists the type of point symbol (for example, strike and dip of inclined bedding). The SYMBOL item lists the marker symbol used by ArcInfo to identify the type of structural map symbol(symbol numbers refer to the geoscamp2.mrk markerset). The STRIKE item contains the strike of bedding as well as trend of fold axis, where applicable. Strike is an azimuthal angle. Measured in degrees from 0 to 360 in a clockwise direction from North, the STRIKE value also specifies the dip direction, where the dip direction is 90 degrees clockwise relative to the STRIKE. The DIP item contains the dip of bedding as well as plunge angles, where applicable. 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. The SOURCE item lists the numeric code used to identify the data source. In the hcpts.ref INFO file, the SOURCE item lists the numeric code used to identify the data source. The SCALE item lists the scale of the 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.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 HCPTS# 4 5 B - > 21 HCPTS-ID 4 5 B - > 25 PTTYPE 100 100 C - > 125 SYMBOL 3 3 I - > 128 STRIKE 3 3 I - > 131 DIP 3 3 I - > 134 SOURCE 4 4 I - > >HCPTS.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hcpta coverage: Contains points recording site-specific observations and measurements of lineation, such as inclined lineation. In the hcpta.pat INFO file, the PTTYPE item lists the type of point symbol (for example, strike and dip of inclined bedding). The SYMBOL item lists the marker symbol used by ArcInfo to identify the type of structural map symbol(symbol numbers refer to the geoscamp2.mrk markerset). The STRIKE item contains the strike of bedding as well as trend of fold axis, where applicable. Strike is an azimuthal angle. Measured in degrees from 0 to 360 in a clockwise direction from North, the STRIKE value also specifies the dip direction, where the dip direction is 90 degrees clockwise relative to the STRIKE. The DIP item contains the dip of bedding as well as plunge angles, where applicable. 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. The SOURCE item lists the numeric code used to identify the data source. In the hcpta.ref INFO file, the SOURCE item lists the numeric code used to identify the data source. The SCALE item lists the scale of the 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.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 HCPTA# 4 5 B - > 21 HCPTA-ID 4 5 B - > 25 PTTYPE 100 100 C - > 125 SYMBOL 3 3 I - > 128 STRIKE 3 3 I - > 131 DIP 3 3 I - > 134 SOURCE 4 4 I - > >HCPTA.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hcptd coverage: Contains points recording site-specific observations and measurements of drill holes. In the hcptd.pat INFO file, the PTTYPE item labels the points as Drill hole – Depth to top of rock unit and total depth (TD) indicated in feet. The SYMBOL item lists the point symbol number used by ArcInfo to plot the point (symbol numbers refer to the geoscamp2.mrk markerset). The RU1FT item lists the first rock unit label and depth in feet. The RU2FT item lists the second rock unit label and depth in feet (if present). The TDFT item lists the TD label and total depth in feet of the drill hole. The SOURCE item lists the numeric code used to identify the data source. In the hcptd.ref INFO file, the SOURCE item lists the numeric code used to identify the data source. The SCALE item lists the scale of the 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.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. >HCPTD.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 HCPTD# 4 5 B - > 21 HCPTD-ID 4 5 B - > 25 PTTYPE 100 100 C - > 125 SYMBOL 3 3 I - > 128 RU1FT 20 20 C - > 148 RU2FT 20 20 C - > 168 TDFT 20 20 C - > 188 SOURCE 4 4 I - >HCPTD.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hcptf coverage: Contains points recording site-specific observations and measurements of fault displacement in feet. In the hcptf.pat INFO file, the PTTYPE item labels the points as Fault displacement – Amount of fault displacement indicated in feet. The SYMBOL item lists the point symbol number used by ArcInfo to plot the point (symbol numbers refer to the geoscamp2.mrk markerset). The FDFT item lists the amount of fault displacement in feet. The SOURCE item lists the numeric code used to identify the data source. In the hcptf.ref INFO file, the SOURCE item lists the numeric code used to identify the data source. The SCALE item lists the scale of the 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.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 HCPTF# 4 5 B - > 21 HCPTF-ID 4 5 B - > 25 PTTYPE 100 100 C - > 125 SYMBOL 3 3 I - > 128 FDFT 3 3 I - > 131 SOURCE 4 4 I - > >HCPTF.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hcptps coverage: Contains points recording site-specific observations and measurements of depth to formation observed in shaft in feet. In the hcptps.pat INFO file, the PTTYPE item labels the points as Depth to formation – Indicated by formation label and depth in feet. The SYMBOL item lists the point symbol number used by ArcInfo to plot the point (symbol numbers refer to the geoscamp2.mrk markerset. The RUFT item lists the rock unit label and depth in feet. The SOURCE item lists the numeric code used to identify the data source. In the hcptps.ref INFO file, the SOURCE item lists the numeric code used to identify the data source. The SCALE item lists the scale of the 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.) The AUTHORS item lists the author(s) or compiler(s) of source map entered as last name, first name or initial, and middle initial. The YEAR item lists the source (map) publication date. The REFERENCE item lists the remainder of the reference in USGS reference format. >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 HCPTPS# 4 5 B - > 21 HCPTPS-ID 4 5 B - > 25 PTTYPE 100 100 C - > 125 SYMBOL 3 3 I - > 128 RUFT 20 20 C - > 148 SOURCE 4 4 I - > >HCPTPS.REF: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 SOURCE 4 4 I - > 5 SCALE 8 8 I - > 13 AUTHORS 200 200 C - > 213 YEAR 4 4 I - > 217 REFERENCE 250 250 C - hchlsd grid: Contains hillshade values derived from U.S. Geological Survey National Elevation Dataset (NED) 10 meter resolution elevation data. The grid's projection is the same Universal Transverse Mercator NAD27 datum projection used for the geologic database coverages. The illumination angle for the hillshade's shaded relief grid was generated at an azimuth of 315 degrees and horizon angle of 45 degrees. In the integer grid's hchlsd.vat INFO file, the VALUE item lists integer values that describe the illumination level of a cell or group of cells forming a zone. The COUNT item list the number of cells in a zone. In the grid's hchlsd.sta INFO file, the MIN item contains the minimum value, the MAX item contains the maximum value, the MEAN item contain the average value, and the STDV item contains the standard deviation. >HCHLSD.VAT > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 VALUE 4 10 B - > 5 COUNT 4 10 B - >HCHLSD.STA > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 MIN 8 15 F 3 > 9 MAX 8 15 F 3 > 17 MEAN 8 15 F 3 > 25 STDV 8 15 F 3 >Coding of LABEL and DESC attributes in the hcgeo coverage: >LABEL | DESC >Cp | Peerless Formation (Upper Cambrian) >Cs | Sawatch Quartzite (Upper Cambrian) >Dc | Chaffee Formation (Upper Devonian) >Dcd | Chaffee Formation, Dyer Dolomite Member (Upper Devonian) >Dcp | Chaffee Formation, Parting Quartzite Member (Upper Devonian) >Kg | Granodiorite (Upper Cretaceous) >Kp | Pando Porphyry (Upper Cretaceous) >Ml | Leadville Dolomite (Lower Mississippian) >Om | Manitou Dolomite (Lower Ordovician) >Ou | Harding Sandstone and Manitou Dolomite undivided (Middle and Lower Ordovician) >Pb | Belden Formation (Middle Pennsylvanian) >Pb? | Belden Formation, uncertain (Middle Pennsylvanian) >Pm | Minturn Formation (Middle Pennsylvanian) >Pm? | Minturn Formation, uncertain (Middle Pennsylvanian) >Pmh (Pm) | Minturn Formation, Hornsilver Dolomite Member (Middle Pennsylvanian) >Pmr (Pm) | Minturn Formation, Resolution Dolomite Member (Middle Pennsylvanian) >Pmrl | Minturn Formation, Robinson Limestone Member (Middle Pennsylvanian) >Pmrl(Pmrl) | Minturn Formation, Robinson Limestone Member (Middle Pennsylvanian) >Pmw (Pm) | Minturn Formation, Wearyman Dolomite Member (Middle Pennsylvanian) >QTc | Preglacial colluvium (Pleistocene or Pliocene) >Qag | Alluvium and gravels (Holocene and Pleistocene) >Qd | Glacial drift (Holocene and Pleistocene) >Qdpb | Glacial drift (Pleistocene) >Qdr | Recent moraines (Holocene) >Ql | Loess (Pleistocene) >Qlt | Landslide debris and talus (Holocene and Pleistocene) >Qm | Malta Gravel (Pleistocene) >TKe | Elk Mountain Porphyry (Paleocene or Upper Cretaceous) >TKj | Johnson Gulch Porphyry (Paleocene or Upper Cretaceous) >TKs | Sacramento Porphyry (Paleocene or Upper Cretaceous) >TKsd | Syenite and diorite (Paleocene or Upper Cretaceous) >TKu | Unclassified porphyries (Tertiary and Upper Cretaceous) >TKu (a) | Unclassified porphyries (Tertiary and Upper Cretaceous) >Ter | Eagle River Porphyry (Paleocene?) >Thl | Hornblende latite porphyry (Paleocene?) >Tir | Intrusive rhyolite (Pliocene or Miocene) >Tl | Lincoln Porphyry (Paleocene) >Tl (a) | Lincoln Porphyry (Paleocene) >Tlb | Latite breccia (Oligocene) >Trb | Rhyolite breccia (Pliocene or Miocene) >Trp | Rhyolite porphyry (Oligocene) >bg | Biotite gneiss and schist (Precambrian) >bg (Su) | Biotite gneiss and schist (Precambrian) >ccg | Granite of Cross Creek (Precambrian) >cg | Precambrian shear zone >d (Pm) | Minturn Formation, dolomite bed or reef (Middle Pennsylvanian) >d (Pmrl) | Minturn Formation, Robinson Limestone Member, dolomite bed or reef (Middle Pennsylvanian) >dd | Diorite dikes (Precambrian) >di | Biotite-quartz diorite (Precambrian) >gd | Granitic and dioritic rocks of Holy Cross City, predominantly granodioritic facies (Precambrian) >gdd | Granitic and dioritic rocks of Holy Cross City, predominantly dioritic facies - Most abundant (Precambrian) >gdg | Granitic and dioritic rocks of Holy Cross City, predominantly granitic facies - Least abundant (Precambrian) >h | Hornblendite (Precambrian) >hc | Hornblende and calc-silicate gneisses (Precambrian) >hc (Shear) | Hornblende and calc-silicate gneisses (Precambrian) >hc (Su) | Hornblende and calc-silicate gneisses (Precambrian) >hd | Hornblende diorite (Precambrian) >mdg | Mixed migmatite, diorite, and granitic rocks (Precambrian) >ml | Metalamprophyre (Precambrian) >mt | Migmatite (Precambrian) >p | Pegmatite (Precambrian) >pCr | Precambrian rocks of unknown character >sf | St. Kevin Granite, fine-grained facies (Precambrian) >sf (Shear) | St. Kevin Granite, fine-grained facies (Precambrian) >sf (a) | St. Kevin Granite, fine-grained facies (Precambrian) >sg | St. Kevin Granite, granodiorite facies (Precambrian) >sh | St. Kevin Granite, trachytoid hybrid facies (Precambrian) >sn | St. Kevin Granite, normal facies (Precambrian) >sn (Shear) | St. Kevin Granite, normal facies (Precambrian) >sn (Su) | St. Kevin Granite, normal facies (Precambrian) >sn (a) | St. Kevin Granite, normal facies (Precambrian) >su | St. Kevin Granite undivided (Precambrian) >su (a) | St. Kevin Granite undivided (Precambrian) >ug | Unclassified granites (Precambrian) >w | Open water >Coding of LINECODE and NAME attributes in the hcgeo coverage: >LINECODE | NAME >1 | Contact - Certain >2 | Contact - Approximately located >3 | Contact - Concealed >5 | Boundary of patterned area >12 | Contact - Approximately located, uncertain >13 | Contact - Concealed, uncertain >41 | Shoreline >59 | Oh bed - Certain >59 | Pme bed - Certain >59 | Pmh bed - Certain >59 | Pmr bed - Certain >59 | Pmrl bed - Certain >59 | Pmw bed - Certain >59 | Pmwq bed - Certain >59 | d bed - Certain >59 | j8 bed - Certain >59 | ls bed - Certain >60 | Pmh bed - Approximately located >60 | Pmr bed - Approximately located >60 | Pmrl bed - Approximately located >60 | Tprl bed - Approximately located >60 | d bed - Approximately located >60 | d bed - Certain >60 | j8 bed - Approximately located >60 | ls bed - Approximately located >81 | Map boundary >82 | Boundary of area in which only bedrock is shown >101 | Fault - Certain >102 | Fault - Approximately located >103 | Fault - Concealed >108 | Fault - Approximately located, inferred >109 | Fault - Concealed, inferred >111 | Normal fault - Certain >112 | Normal fault - Approximately located >113 | Normal fault - Concealed >119 | Normal fault - Concealed, inferred >122 | Low-angle normal fault - Approximately located >505 | ml dike - Certain >505 | Kg dike - Certain >505 | Kp dike - Certain >505 | TKe dike - Certain >505 | TKu dike - Certain >505 | Ter dike - Certain >505 | Tir dike - Certain >505 | Tl dike - Certain >505 | Trp dike - Certain >505 | dd dike - Certain >505 | di dike - Certain >505 | h dike - Certain >505 | hd dike - Certain >505 | ml dike - Certain >506 | Kp dike - Approximately located >506 | TKu dike - Approximately located >506 | Ter dike - Approximately located >506 | Tir dike - Approximately located >506 | Trp dike - Approximately located >506 | dd dike - Approximately located >506 | di dike - Approximately located >506 | h dike - Approximately located >506 | hd dike - Approximately located >506 | ml dike - Approximately located >507 | Kp dike - Concealed >507 | TKu dike - Concealed >507 | Tir dike - Concealed >507 | Tl dike - Concealed >507 | dd dike - Concealed >507 | ml dike - Concealed >537 | Fault - Inferred >604 | Vein - Certain >605 | Vein - Approximately located >606 | Vein - Concealed >Coding of LINECODE and NAME attributes in the hcqr coverage: >LINECODE | NAME >510 | Quartz reef or silicified zone >Coding of LINECODE and NAME attributes in the hcxc coverage: >LINECODE | NAME >98 | Cross-section line A-A’ >98 | Cross-section line B-B’ >98 | Cross-section line C-C’ >98 | Cross-section line D-D’ >98 | Cross-section line E-E’ >Coding of PTTYPE attributes in the hcpts coverage: >PTTYPE >Caved tunnel >Fault attitude - Showing strike and dip >Inclined Pando Porphyry attitude - Showing dip >Inclined bedding - Showing strike and dip >Inclined cataclastic foliation in shear zones - Showing strike >Inclined foliation - Showing strike and dip >Inclined metalamprophyre dike attitude - Showing dip >Inclined pegmatite attitude - Showing dip >Inclined porphyry dike attitude - Showing dip >Inclined shear zone attitude - Showing dip >Inclined vein attitude - Showing dip >Prospect pit or shallow shaft >Shaft >Tunnel >Vertical bedding - Showing strike >Vertical cataclastic foliation in shear zones - Showing strike >Vertical fault attitude - Showing strike and dip >Vertical foliation - Showing strike >Vertical foliation and lineation - Showing strike >Vertical shear zone attitude - Showing dip >Vertical vein attitude - Showing dip >Coding of PTTYPE attributes in the hcpta coverage: >PTTYPE >Horizontal lineation – Showing bearing >Inclined lineation – Showing bearing and plunge >Inclined lineation in highly contorted, structurally disorganized rocks– Showing bearing and plunge >Slickensides or grooves on vein, fault, or dike - Showing bearing and plunge >Vertical lineation – Showing bearing >Coding of PTTYPE attributes in the hcptd coverage: >PTTYPE >Drill hole - Depth to top of rock unit and total depth (TD) indicated in feet >Coding of PTTYPE attributes in the hcptf coverage: >PTTYPE >Fault displacement – Showing displacement amount in feet >Coding of PTTYPE attributes in the hcptps coverage: >PTTYPE >Depth to formation observed in shaft - Showing rock unit label and depth in feet Auxiliary files: geol_sfo.lin: This lineset file defines geologic line types in the geologically themed coverages. geoscamp2.mrk: This markerset file defines the geologic markers in the geologically themed coverages. wpgcmykg.shd: This shadeset file defines the cmyk values of colors assigned to polygons in the geologically themed coverages. wpgcmykg.style: This style file defines the cmyk values of colors assigned to polygons in the geologically themed geodatabases. I-830_map.pdf: A print optimized file for viewing and printing a graphics version of the map and accessory elements using Adobe Acrobat viewing software (version 10.0). (Adobe Acrobat viewing software is free and can be downloaded at the following URL: http://www.adobe.com/products/acrobat/readstep2.html) I-830_xsec.pdf: A print optimized file for viewing and printing a graphics version of the map cross-sections using Adobe Acrobat viewing software (version 10.0). (Adobe Acrobat viewing software is free and can be downloaded at the following URL: http://www.adobe.com/products/acrobat/readstep2.html) I-830.mxd: ArcMap map document file which contains map layers that reference data sources in the GIS database and cartographic symbolization. I-830.pmf: An ESRI published map file viewing, querying, and printing the GIS database using ESRI ArcReader software (version 9.3.1 or 10) (ESRI ArcReader viewing software is free and can be downloaded at the following URL: http://www.esri.com/software/arcgis/arcreader/download.html) Entity_and_Attribute_Detail_Citation: http://wrgis.wr.usgs.gov/open-file/of99-438/ Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services Address: Box 25286 Address: Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Contact_Voice_Telephone: 1-(888)-ASK-USGS Contact_Electronic_Mail_Address: http://ask.usgs.gov Resource_Description: Miscellaneous Investigations Series I-830 Distribution_Liability: This database, identified as I-830, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Although this information product, for the most part, is in the public domain, it also contains copyrighted material as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE,SHP,GDB Format_Version_Number: 9.3.1 Format_Version_Date: 2009 File_Decompression_Technique In Windows, use WinZip (http://www.winzip.com/) or other programs to extract the file. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/imap/i-830/downloads/I-830_map.pdf Fees: none Metadata_Reference_Information: Metadata_Date: 2010 Metadata_Review_Date: 2010 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Theodore Brandt Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Address: MS 980, Box 25046 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Contact_Voice_Telephone: 303-236-1901 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998