| Online link | https://geo-nsdi.er.usgs.gov/metadata/map-mf/2332/metadata.faq.html |
|---|---|
| Description | This digital map database, compiled from previously published and unpublished data, and new mapping by the authors, represents the general distribution of bedrock and surficial deposits in the mapped area. Together with the accompanying text file (pamf.p |
| Originators | Brabb, Earl E.; Graymer, Russell W.; and Jones, D. L. |
| Publication | U.S. Geological Survey Miscellaneous Field Studies Map MF-2332 |
All coverages contain the standardized attributes for arcs and polygons assigned by ARC/INFO. For arcs these attributes are: >COLUMN--ITEM_NAME----------WIDTH-----OUTPUT-----TYPE---#_DECIMALS >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------<cover>#-------------4----------5---------B---------\ >29------<cover>-ID-----------4----------5---------B---------\ > >For polygons these attributes are: > >COLUMN--ITEM_NAME----------WIDTH-----OUTPUT-----TYPE---#_DECIMALS >1-------AREA-----------------8---------18---------F---------5 >9-------PERIMETER------------8---------18---------F---------5 >17------<cover>#-------------4----------5---------B---------\ >21------<cover>-ID-----------4----------5---------B---------\ > >COVERAGE-----FEATURE-----DESCRIPTION >Items/Attributes----------Values > >plate1-----lines-----cultural linework (roads, township and range, NTS boundary, map border and tics) > >ITEM: layer DESCRIPTION: >ROADS_FINAL Roads in study area >TOWN_RANGE Township and range boundaries >SECTIONS_100K Township and range section lines >NTS Nevada Test Site boundary >BORDER Map border >TICS_STATE_PLANE Nevada State Plane graticules >TICS_LAT_LONG Latitude and longitude graticules > >ball_bar-----lines--------displacement symbols on faults >ball_bar-----polygons-----displacement symbols on faults >ITEM: ssym DESCRIPTION: >1 Number corresponding to a shadeset symbol > >szgeol-----polygons-------geologic units >ITEMS: DESCRIPTION: >MAP_UNIT Lithostratigraphic symbols >UNIT_DESCRIPTION Description of lithostratigraphic symbols >SSYM Number corresponding to a shadeset symbol >(Values for the coverage items are presented in table format below) > >MAP_UNIT...UNIT_DESCRIPTION... SSYM >CZw Wood Canyon Formation 694 >Cb Bonanza King Formation 461 >Cc Carrara Formation 601 >Cn Nopah Formation 518 >Cz Zabriskie Quartzite 810 >DSd Dolomite 55 >Dc Dolomite limestone and sandy dolomite 52 >MDs Clastic sedimentary rocks (includes Eleana) 332 >Mc Chainman Shale 179 >Ou Sedimentary rocks, undivided (Ely Sprs. Eureka Pogonip) 238 >Qa Alluvium (Holocene) 748 >Qam Alluvium (late and middle Pleistocene) 705 >Qao Older alluvium (middle and early Pleistocene) 501 >Qay Younger alluvium (Holocene and late Pleistocene) 575 >Qay/Qam mantle of Qay over Qam 705 >Qay/Qem mantle of Qay over Qem 767 >Qbo Older Quaternary basalt 98 >Qby Younger Quaternary basalt 130 >Qe Eolian deposits (Holocene to middle Pleistocene) 759 >Qem Eolian-colluvial ramp deposits (Holocene-middle Pleis.) 767 >Qem/Qao mantle of Qem over Qao 501 >Qeo Older eolian sand (middle to early Pleistocene) 576 >Qey Eolian sand and fragments (Holocene and late Pleistocene) 715 >Qey/Qam mantle of Qey over Qam 705 >Qey/Qeo mantle of Qey over Qeo 576 >Qsd Spring deposits (Holocene to middle Pleistocene) 681 >Tac Calico Hills Formation 184 >Tbo Older Tertiary basalts (Miocene) 129 >Tby Younger Tertiary basalt of Crater Flat (Pliocene) 372 >Tcb Bullfrog Tuff 509 >Tcp Prow Pass Tuff 422 >Tcr Rhyolite of Prospector Pass 151 >Tcs Pre-Bullfrog Tuff bedded tuff 322 >Tct Tram Tuff 152 >Tfb Beatty Wash Formation 632 >Tfd Lavas of Dome Mountain 119 >Tfs Rhyolite of Shoshone Mountain 633 >Tgc Conglomerates, fanglomerates, and rock-avalanche breccia 652 >Ti Intrusions (Miocene) 217 >Tma Ammonia Tanks Tuff 721 >Tmb Rhyolite of Waterpipe Butte 111 >Tmp Rhyolite of Pinnacles Ridge 707 >Tmr Rainier Mesa Tuff 124 >Tmw Rhyolite of Windy Wash 905 >Tpbt Bedded tuff (Paintbrush Gp.) 116 >Tpc Tiva Canyon Tuff 901 >Tpcy Tuff of Pinyon Pass 732 >Tpd Rhyolite of Delirium Canyon 114 >Tpk Rhyolite of Comb Peak 154 >Tpp Pah Canyon Tuff 542 >Tpr Rhyolite lavas, undivided (Paintbrush Gp.) 155 >Tpt Topopah Spring Tuff 336 >Tpv Rhyolite of Vent Pass 554 >Tpx Paintbrush Group tuffs, undivided (flt zn: tectonically mixed) 577 >Tpy Yucca Mountain Tuff 514 >Trx Rock-avalanche breccia of southern Crater Flat (Miocene) 303 >Ts Older sedimentary rocks, undivided (Miocene and Oligocene 387 >Ttr Rocket Wash Tuff of Thirsty Canyon Group (Miocene) 555 >Tvo Older volcanic rocks, undivided (Miocene) 909 >Tvx Intracaldera and caldera margin megabreccia and mesobreccia 541 >Tvy Younger volcanic rocks (Pliocene to Miocene) 527 >Tw Wahmonie Formation 304 >Zs Stirling Quartzite 494 > >szlines-----lines-----attributed with ITEM layer as follows: >ITEM: layer DESCRIPTION: >BORDER_50K_MAP Extent of study area >CALDERA Structural Boundary of Claim Canyon Caldera >CONTACT Geologic contact - exposed or well constrained >CONTACT_APPROX Geologic contact - approximately located >CONTACT_CONCEALED Geologic contact - concealed beneath Quaternary cover or poorly exposed >CONTACT_Q Geologic contact of Quaternary aged deposits >CROSS_SECTION_LINES Location of cross sections A-A', B-B', C-C', and D-D' >FAULT Fault - exposed or well constrained >FAULT_APPROX Fault - approximately located >FAULT_INFER_GEOL Fault - concealed and inferred beneath Quaternary cover >FAULT_INFER_GP Fault - concealed beneath Quaternary cover and inferred from geophysical data >FAULT_PRE_TERTIARY_THRUST Thrust fault - pre-Tertiary age, exposed or well constrained >FAULT_PRE_TERTIARY_THRUST_INFER Thrust fault - pre-Tertiary age, concealed and inferred beneath Quaternary cover or poorly exposed >FAULT_LOW_ANGLE_NORMAL Gently dipping normal fault >SCARP_AL Fault scarps in Quaternary deposits >SYMBOL_CALC_DIP Symbols displaying strike and dip of bedrock estimated using 3-point method >SYMBOL_FLT_FLD Symbols displaying relative horizontal movement (paired arrows) on faults, teeth on reverse faults, and queries (uncertain) fault locations), and fold axes >SYMBOL_FOLIATION Symbols displaying strike and dip of compaction foliation >SYMBOL_HORIZ_BD Symbols displaying horizontal bedding >SYMBOL_OVRTRN_BD Symbols displaying overturned bedding >SYMBOL_STRIKE_DIP Symbols displaying strike and dip of bedding >SYMBOL_VERT_BED Symbols displaying vertically dipping bedding >UNIT_LABELS Line leaders from map unit to text describing bedrock geologic units >UNIT_LABELS_Q Line leaders from map unit to text describing geologic units of Quaternary age > >szlines-----annotation-----Text for geologic units, borehole and map symbol labels >subclass: anno.dxf Description >Level >1 geology labels >3 fault names >4 cross section trace labels >5 borehole labels >6 foliation labels >7 measured strike and dip labels >8 calculated strike and dip labels >9 overturned bedding labels >10 queries symbols(?)on fault traces > >szlines-----points-----borehole locations >ITEM: layer DESCRIPTION: >BOREHOLES_1996 Location of selected bore holes in study area > >Topo24k_pot-----arcs-----topographic base >ITEMS: DESCRIPTION: >elev_ft elevation of line >index200 1 if line is a 200 ft index contour, otherwise 0
http://pubs.usgs.gov/imap/i-2755/i-2755_pam.pdf
Geologic units
| Label | Definition |
|---|---|
| MAP_UNIT | Lithostratigraphic symbol |
| UNIT_DESCRIPTION | Brief description of the map unit symbol |
| SSYM | Shadeset symbol; a numeric code through which the proper polygon fill can be selected from the shadeset file for plotting the map. |
Linear map feature of geologic or cartographic signficance, including some symbols
| Label | Definition |
|---|---|
| LAYER | Geological or cartographic significance of the line |