Online link | https://geo-nsdi.er.usgs.gov/metadata/map-mf/2424/metadata.faq.html |
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Description | During the late Wisconsin glaciation (circa 26,000-13,000 carbon-14 yr BP) the Cordilleran glacier complex formed vast ice fields and large glaciers along the crest of the Coast Mountains. As these glaciers flowed west to the Pacific Ocean, they were joi |
Originators | Carrara, Paul E.; Ager, Thomas A.; Baichtal, J. F.; and Van Sistine, Darren R. |
Publication | U.S. Geological Survey Miscellaneous Field Studies Map MF-2424 |
The data files were generated using ArcInfo, consequently they contain a number of fields that are created and maintained specifically for that software package. The actual field characteristics are as follows: >Polygonal features of the geologic data in SKMPOLY.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 SKMPOLY# 4 5 B - > 21 SKMPOLY-ID 4 5 B - > 25 SYMBOL 8 8 I - > 33 LABEL 17 17 C - > 50 TEXT 17 17 C - > 67 DESCRIPTION 64 64 C _ > >Linear features of the geologic unit data in SKMPOLY.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC > 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 SKMPOLY# 4 5 B - > 29 SKMPOLY-ID 4 5 B - > 33 DESCRIPTION 80 80 C - > 113 SYMBOL 3 3 I - > 116 SYMSET 10 10 C - > >Features of the geologic line data in SKMLINE.AAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC > 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 SKMLINE# 4 5 B - > 29 SKMLINE-ID 4 5 B - > 33 DESCRIPTION 80 80 C - > 113 SYMBOL 3 3 I - > 116 SYMSET 10 10 C - > >Features of the geologic point data in SKMPNT.PAT: > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 SKMPNT# 4 5 B - > 21 SKMPNT-ID 4 5 B - > 25 DESCRIPTION 80 80 C - > 105 SYMBOL 3 3 I - > 108 STRIKE 3 3 I - > 111 DIP 3 3 I - > 114 SYMSET 10 10 C - > 124 DETAILS 50 50 C - Field values in this database commonly occur in combinations that are described by the following table. FREQUENCY here represents the number of occurrences within the data of the combination of field values shown. Characters in the LABEL field are used to signify special geologic symbols, # signifies Triassic, @ signifies Pennsylvanian, and { signifies Cambrian. > Field value combinations in SKMPOLY.PAT > FREQUENCY SYMBOL LABEL TEXT DESCRIPTION > 14 4 Qsw Qsw Sheetwash deposits > 13 5 Qto Qto Older terrace alluvium > 17 8 af af artificial fill > 24 9 Qta Qta Talus deposits > 2 10 Qlo Qlo Loess > 100 12 Qc Qc Colluvium > 37 13 Qti Qti Till > 5 14 Qtt Qtt Oldest terrace alluvium > 4 15 Qdy Qdy Younger debris-flow deposits > 53 16 Qls Qls Landslide deposits > 11 18 Kw Kw Williams Fork Formation > 82 25 Qac Qac Undivided alluvium and colluvium > 2 28 Qlo/Qp Qlo/Qp Loess and pediment deposits > 4 29 Qlo/Qty Qlo/Qty Loess and younger terrace alluvium > 4 30 QTd QTd Oldest debris-flow deposits > 42 32 Qfy Qfy Younger fan alluvium and debris-flow deposits > 5 33 Qfo Qfo Older fan alluvium and debris-flow deposits > 1 34 Qlo/Qtt Qlo/Qtt Loess and oldest terrace alluvium > 17 41 {s Cs Sawatch Quartzite > 13 47 Tcc Tcc Conglomerate of Canyon Creek > 7 52 Qlo/Qfo Qlo/Qfo Loess, older fan alluvium and debris-flow deposits > 4 64 Xg Xg Granodiorite gneiss > 19 71 Twu Twu Upper member Wasatch Formation > 7 91 Dcp Dcp Parting Formation > 21 101 O{u OCu Manitou Dolomite and Dotsero Formation, undivided > 7 104 TKu TKu Undivided unit > 2 107 Tgy Tgy Younger gravel > 2 108 Tgo Tgo Older gravel > 9 130 Tb Tb Basalt and trachybasalt > 1 143 {d Cd Dotsero Formation > 7 156 Twl Twl Lower member Wasatch Formation > 8 168 Dc Dc Chaffee Group > 8 177 Dcd Dcd Dyer Formation > 27 241 @e Pe Eagle Valley Formation > 13 243 @ee Pee Eagle Valley Evaporite > 1 313 Colorado River Colorado River Colorado River > 1 313 Porter Reservoir Porter Reservoir Porter Reservoir > 16 316 Pms Pms Schoolhouse Member Maroon Formation > 9 320 P@m PPm Main body Maroon Formation > 16 323 Ml Ml Leadville Limestone > 8 327 @ml Pml Lower member Maroon Formation > 14 365 Je Je Entrada Sandstone > 14 372 #Ps TRPs State Bridge Formation > 12 387 Kml Kml Lower member Mancos Shale > 13 398 Kic Kic Cozzette and Corcoran Sandstone members Iles Formation > 11 401 Ki Ki Main body Iles Formation > 5 411 Ks Ks Sandstone, siltstone, claystone, and conglomerate > 10 427 Jm Jm Morrison Formation > 11 429 Qfp Qfp Flood-plain and stream- channel deposits > 15 442 Kmn Kmn Niobrara member Mancos Shale > 34 444 Qdo Qdo Older debris-flow deposits > 1 451 Qp Qp Pediment deposit > 8 454 Kd Kd Dakota Sandstone > 4 476 Xf Xf Felsic gneiss > 27 483 Kmu Kmu Upper member Mancos Shale > 1 500 Qlo/Qto Qlo/Qto Loess and older terrace alluvium > 18 510 #c TRc Chinle Formation > 5 515 @b Pb Belden Formation > 1 524 MDu MDu Leadville Limestone and Chaffee Group, undivided > Field value combinations in SKMPOLY.AAT > FREQUENCY SYMBOL SYMSET DESCRIPTION > 2 1 geol_sfo Wheeler coal bed-certain > 1768 1 geol_sfo Contact-certain > 4 3 geol_sfo Wheeler coal bed-approximately located > 39 3 geol_sfo Contact-approximately located > 13 15 geol_sfo Thrust fault-certain > 1 23 geol_sfo Thrust fault-approximately located > 9 25 geol_sfo Thrust fault-concealed > 100 51 geol_sfo Normal fault-certain > 2 59 geol_sfo Clinkered Wheeler coal bed-certain > 16 185 geol_sfo Normal fault-approximately located > 109 186 geol_sfo Normal fault-concealed > 29 190 geol_sfo Strike-slip fault, right-lateral located offset-concealed > 47 222 geol_sfo Water boundary > 28 225 alcwrg Intrusive contact-certain > 216 227 geol_sfo Map boundary > 42 229 alcwrg Intrusive contact-concealed > Field value combinations in SKMLINE.AAT > FREQUENCY SYMBOL SYMSET DESCRIPTION > 9 60 geol_sfo Anticline-certain > 2 63 geol_sfo Anticline-concealed > 14 164 geol_sfo Crest line of moraine, sense of symmetry unspecified > 1 94 geol_sfo Syncline-approximately located > 18 92 geol_sfo Syncline-certain > 10 95 geol_sfo Syncline-concealed > 1 227 geol_sfo cross-section line A > 1 227 geol_sfo cross-section line B > Field value combinations in SKMPNT.PAT > FREQUENCY SYMBOL SYMSET DESCRIPTION > 3 22 water2 Dry hole-unsuccessful hole drilled during hydrocarbon exploration > 5 1 geoscamp2 Horizontal bedding > 7 7 alcgeol Inclined bedding-showing approximate strike and dip > 483 2 geoscamp2 Inclined bedding-showing strike and dip > 16 103 usgs Inclined tunnel or adit > 44 6 geoscamp2 Overturned bedding-showing strike and dip > 1 9 usgs2 Prospect pit > 3 81 geoscamp2 Strike and dip of foliation > 1 70 geoscamp2 Strike and dip of inclined foliation where layering is parallel to foliation > 1 71 geoscamp2 Strike of vertical foliation where layering is parallel to foliation > 7 4 geoscamp2 Vertical bedding-showing strike > 1 53 plotter Fossil locality
http://pubs.usgs.gov/mf/2002/mf-2389/mf-2389_pam_508.pdf
Geologic units and other land-cover polygonal features.
Label | Definition |
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SYMBOL | Integer index of the fill color for this polygon. The index indicates an element of the shade set color524.shd. |
LABEL | Map unit label. This is a character field of width 17. The typeface used is fnt027, included with this package. Some geologic map units are labeled using symbols that are not represented in standard type faces, such as the symbols for the Cambrian, Pennsylvanian, and Triassic periods. The font fnt027, included with the ArcInfo export files in this database package, is used to draw these symbols. |
TEXT | Map-unit label expressed in the nearest ASCII equivalent of the unit label that is actually shown on the printed map sheet. Some geologic unit labels contain symbols that cannot be represented using ASCII, such as the symbols for the Cambrian, Pennsylvanian, and Triassic periods. The proper symbols are contained within the font file fnt027. |
DESCRIPTION | Short textual description of the map unit. Complete descriptions of the map units are normally provided in an accompanying report. This description is typically shown on the legend printed on the map sheet. |
Linear geologic features bounding geologic unit polygons, chiefly contacts and faults.
Label | Definition |
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DESCRIPTION | Text indicating the type of linear geologic feature. |
SYMBOL | Integer index of the line type used for plotting the feature on the map. The line type is given by the symbol set (whose name is specified in an accompanying attribute) and this index value. |
SYMSET | Name of the symbol set containing the appropriate line style to be used for plotting this feature. |
Linear geologic features, chiefly fold axes, moraine crest lines, and lines of cross section, that do not bound the geologic unit polygons.
Label | Definition |
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DESCRIPTION | Text indicating the type of linear geologic feature. |
SYMBOL | Integer index of the line type used for plotting the feature on the map. The line type is given by the symbol set (whose name is specified in an accompanying attribute) and this index value. |
SYMSET | Name of the symbol set containing the appropriate line style to be used for plotting this feature. |
Point geologic features of all types, including observations and measurements of geologic structure, geodetic control points, mineral and fossil occurrences, small geologic structures, and relevant manmade features.
Label | Definition |
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DESCRIPTION | Text indicating the type of geologic point feature. |
SYMBOL | Integer index of the point type used for plotting the feature on the map. The point type is given by the symbol set (whose name is specified in an accompanying attribute) and this index value. |
SYMSET | Name of the symbol set containing the appropriate symbol to be used for plotting this feature. |