# Bedrock Geologic Map of the Yucca Mountain Area, Nye County, Nevada

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Frequently anticipated questions:- What does this data set describe?    - How might this data set be cited?
  - What geographic area does the data set cover?
  - What does it look like?
  - Does the data set describe conditions during a particular time period?
  - What is the general form of this data set?
  - How does the data set represent geographic features?
  - How does the data set describe geographic features? 
- Who produced the data set?    - Who are the originators of the data set?
  - Who also contributed to the data set?
  - To whom should users address questions about the data? 
- Why was the data set created?
- How was the data set created?    - From what previous works were the data drawn?
  - How were the data generated, processed, and modified?
  - What similar or related data should the user be aware of? 
- How reliable are the data; what problems remain in the data set?    - How well have the observations been checked?
  - How accurate are the geographic locations?
  - How accurate are the heights or depths?
  - Where are the gaps in the data?  What is missing?
  - How consistent are the relationships among the data, including topology? 
- How can someone get a copy of the data set?    - Are there legal restrictions on access or use of the data?
  - Who distributes the data?
  - What's the catalog number I need to order this data set?
  - What legal disclaimers am I supposed to read?
  - How can I download or order the data? 
- Who wrote the metadata?
What does this data set describe?Title:
Bedrock Geologic Map of the Yucca Mountain Area, Nye County, Nevada
Abstract:
Yucca Mountain, Nye County, Nevada, has been identified as a potential site for underground storage of high-level radioactive nuclear waste.  Detailed bedrock geologic maps form an integral part of the site characterization program by providing the fundamental framework and structural setting for the area in and adjacent to the site of the potential repository.
Supplemental_Information:
More information can be found in the supplimentary pamphlet found with the PDF version of the map.
- **How might this data set be cited?**  Day, W.C., Dickerson, R.P., Potter, C.J., Sweetkind, D.S., Juan, C.A. San, II, R.M. Drake, and Fridrich, C.J., 1999, Bedrock Geologic Map of the Yucca Mountain Area, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Series Map I-2627, U.S. Geological Survey, Denver, Colorado.
Online Links:- http://pubs.usgs.gov/imap/i-2627/   **What geographic area does the data set cover?**
West_Bounding_Coordinate:-116.54East_Bounding_Coordinate:-116.38North_Bounding_Coordinate:36.91South_Bounding_Coordinate:36.78
**What does it look like?**
http://pubs.usgs.gov/imap/i-2627/i2627.pdf
 (PDF)
- Complete map layout, including supplemental illustrations, correlation diagram, cross sections, and full description of map units and symbols   **Does the data set describe conditions during a particular time period?**- Calendar_Date: 1998   Currentness_Reference:    Date of publication of the digital map
  -    **What is the general form of this data set?**Geospatial_Data_Presentation_Form:
map
  **How does the data set represent geographic features?**- **How are geographic features stored in the data set?**  This is a vector data set.It contains the following vector data types (SDTS terminology):   - point stringGT-polygon composed of chains
**What coordinate system is used to represent geographic features?**
  **How does the data set describe geographic features?**- EXP_GEOL.PAT
- Geologic unit polygons  (Source: I-2627)   - UNIT_SYMBOL
  - symbol for geologic map units  (Source: I-2627) ValueDefinitionQacalluvium and colluviumQccolluviumdbasaltprrhyolite_Pinnacles_RidgemrwRainer_Mesa_Tuff_weldedmrRainer_Mesa_Tuff_nonweldedklrhyolite_Comb_Peak_lavaktrhyolite_Comb_Peak_tuffvprhyolite_Vent_Passbt5bedded_tuff_5pxTiva_Topopah_undivided_tectonizedcuTiva_undividedcxTiva_undivided_tectonizedcrTiva_crystal-rich_membercpTiva_cyrstal-poor_membercpvTiva_crystal-poor_vitric_zoneymYucca_Mtn_Tuff_and_bt4_undividedbgrhyolite_Black_Glass_CanyonbtPaintbrush_nonwelded_bt4_bt3_bt2bt3Paintbrush_nonwelded_bt3dcrhyolite_Delirium_Canyonrzrhyolite_Zig_Zag_HillppPah_Canyon_Tuff_locally_with_bt3bt2Paintbrush_nonwelded_bt2tuTopopah_undividedtxTopopah_undivided_tectonizedtrTopopah_crystal-rich_member_undividedtrvTopopah_crystal-rich_vitric_zonetrnTopopah_crystal-rich_nonlithophysaltpTopopah_crystal-poor_member_undividedtpulTopopah_crystal-poor_upper_lithophysaltpmnTopopah_crystal-poor_middle_nonlithophysaltpllTopopah_crystal-poor_lower-lithophysaltplnTopopah_crystal-poor_lower_nonlithophysaltpvTopopah_crystal-poor_vitric_zoneacCalico_Hills_undividedaclCalico_Hills_Fm_lavaactCalico_Hills_Fm_tuffpProw_Pass_TuffpbtProw_Pass_Tuff_nonwelded_tuffbBullfrog_Tuffpbtpre-Prow_Pass_TuffesfExploratory_Studies_Facility      PTYPE     numerical value for every map unit  (Source: I-2627)
    Range of valuesMinimum:1Maximum:43
    - DESCRIPTION
    - Short descriptions of map units  (Source: I-2627)        EXPLN.PAT       Explanation of map units.  (Source: I-2627)
      UNIT_SYMBOL
symbol for geologic map units (same as attributes for EXP_GEOL.PAT)  (Source: I-2627)
- DESCRIPTION
- Short descriptions of map units (same as attributes for EXP-GEOL.PAT)  (Source: I-2627)   PTYPE   numerical value for every map unit (same as EXP_GEOL.PAT)  (Source: I-2627)
  - AA_XSEC.PAT
  - Cross secton A-A' geologic contacts and faults.  (Source: I-2627)     - DESCRIPTION
    - Short descriptions of map units (same as attributes for EXP_GEOL.PAT)  (Source: I-2627)       PTYPE       numerical value for every map unit (same as attributes for EXP_GEOL.PAT)  (Source: I-2627)
      - UNIT_SYMBOL
      - symbol for geologic map units (same as attributes for EXP_GEOL.PAT)  (Source: I-2627)          BB_XSEC         Cross secton B-B' geologic contacts and faults.  (Source: I-2627)
        DESCRIPTION
Short descriptions of map units (same attributes as EXP_GEOL.PAT)  (Source: I-2627)
- PTYPE
- numerical value for every map unit (same attributes as EXP_GEOL.PAT)  (Source: I-2627)   UNIT_SYMBOL   symbol for geologic map units (same attributes as EXP_GEOL.PAT)  (Source: I-2627)
  - CC_XSEC
  - Cross secton C-C' geologic contacts and faults.  (Source: I-2627)     - DESCRIPTION
    - Short descriptions of map units (same attributes as EXP_GEOL.PAT)  (Source: I-2627)       PTYPE       numerical value for every map unit (same attributes as EXP_GEOL.PAT)  (Source: I-2627)
      - UNIT_SYMBOL
      - symbol for geologic map units (same attributes as EXP_GEOL.PAT)  (Source: I-2627)          COR_CHART.PAT         Correlation chart of map units.  (Source: I-2627)
        DESCRIPTION
Short descriptions of map units (same attributes as EXP_GEOL.PAT)  (Source: I-2627)
- PTYPE
- numerical value for every map unit (same attributes as EXP_GEOL.PAT)  (Source: I-2627)   UNIT_SYMBOL   symbol for geologic map units (same attributes as EXP_GEOL.PAT)  (Source: I-2627)
  - EXP.FLT.AAT
  - Faults  (Source: I-2627)     - LTYPE
    - Line type  (Source: I-2627) ValueDefinition4fault_solid5fault_approx_dashed6fault_infer_dotted        DESCRIPTION       Short description of faults  (Source: I-2627)
      - EXP.CONT.AAT
      - Geologic contacts  (Source: I-2627)         - LTYPE
        - Line type  (Source: I-2627) ValueDefinition1contact_solid2contact_approximate_dashed3contact_infer_dotted            DESCRIPTION           Short descriptions of contacts  (Source: I-2627)
          - AA_XSEC.AAT
          - Line type of cross-sections  (Source: I-2627)             - LTYPE
            - Line type  (Source: I-2627) ValueDefinition1solid_contact4solid_fault9section_border   Entity_and_Attribute_Overview:  ARC/INFO Export Unix Tar Compress format.  The files include:Filename  	Size (bytes)	Descriptionaa_lab.e00         176920	Cross secton A-A' text labels.aa_xsec.e00        315541	Cross secton A-A' geologic contacts and faults.ball_bar.e00       4006350	Fault symbology - ball and bar on downthrown side.bb_lab.e00         232179	Cross secton B-B' text labels.bb_xsec.e00        471987	Cross secton B-B' geologic contacts and faults.cc_lab.e00         197352	Cross secton C-C' text labelscc_xsec.e00        353628	Cross secton C-C' geologic contacts and faults.cor_chart.e00      56422	Correlation chart of map units.dikes.e00          5988	Location of dikes.dipsym.e00         101899	Symbols displaying strike and dip of bedrock.drillhole.e00      66283	Selected boreholes in the study area.esf_exp.e00        52359	Exploratory Studies Facility alignment.exp_cont.e00       3584349	Geologic contacts.exp_flt.e00        1517057	Faults.exp_geol.e00       4213539	Geologic unit polygons.expln.e00          94092	Explanation of map units.fltsym.e00         107688	Symbols displaying relative horizontal movement (paired arrows), teeth on reverse faults, queries (uncertain fault location)folsym.e00         130991	Symbols displaying strike and dip direction of compaction foliation.index.e00          60132	Location map for references.maplines_xsec.e00  6706	Location of cross sections A-A', B-B', C-C'names.e00          40479	Names of physiographic features and faults.units.e00          1214091	Text describing geologic units.  Entity_and_Attribute_Detail_Citation:  More information can be found in the file README.EXPORT.        Who produced the data set?                - **Who are the originators of the data set?**  (may include formal authors, digital compilers, and editors)                 - W.C. Day R.P. DickersonC.J. Potter
- D.S. Sweetkind C.A. San JuanR.M. Drake II
- C.J. Fridrich 
- **Who also contributed to the data set?** 
- **To whom should users address questions about the data?**  Warren C. DayUS Geological SurveyU.S. Geological SurveyDenver, COUSA
Why was the data set created?This 1:24,000-scale map focuses on the area surrounding the potential high-level nuclear wast repository site at Yucca Mountain.  Its purpose is to define the character and extent of the dominant structural features in the vicinity of and outward from the potential repository area. The Yucca Mountain Project currently is evaluating the cumulative effect of natural geologic hazards in the site area, including seismic and volcanic hazards.How was the data set created?- **From what previous works were the data drawn?**    - Day and others (1998)  (source 1 of 2)     Day, W.C., Potter, C.J., Sweetkind, D.S., Dickerson, R.P., and San Juan, C.A., 1998, Bedrock geologic map of the central block area, Yucca Mountain, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Series Map I-2601.
Type_of_Source_Media:
paper
Source_Scale_Denominator:
6000
Source_Contribution:
primary mapping of area
Dickerson and Drake (1998)
 (source 2 of 2)
-  Dickerson, R.P., and Drake, R.M., II, 1998, Geologic map of the Paintbrush Canyon area, Yucca Mountain, Nevada: U.S. Geological Survey Open-File Report 97-0783.
Type_of_Source_Media:
Paper
Source_Scale_Denominator:
6000
Source_Contribution:
mapped area
**How were the data generated, processed, and modified?**
Date: 21-Sep-2009 (process 1 of 1)
- Creation of original metadata recordPerson who carried out this activity:   Jennifer LenzUS Geological Survey12201 Surise Valley Drive, Mail Stop 918Reston, VAspan>USA
703-648-6974 (voice)703-648-6560 (FAX)pschweitzer@usgs.gov**What similar or related data should the user be aware of?**
How reliable are the data; what problems remain in the data set?- **How well have the observations been checked?**  
- **How accurate are the geographic locations?**  
- **How accurate are the heights or depths?**  
- **Where are the gaps in the data?  What is missing?**  Surficial geology only.
- **How consistent are the relationships among the observations, including topology?**  unknown
How can someone get a copy of the data set?**Are there legal restrictions on access or use of the data?**Access_Constraints:
none
Use_Constraints:
none
- **Who distributes the data set?**  (Distributor 1 of 1)   U.S. Geological Survey Information ServicesBox 25248, Denver Federal CenterDenver, COspan>USA
1-888-ASK-USGS (voice)1-303-202-4693 (FAX)**What's the catalog number I need to order this data set?**
**What legal disclaimers am I supposed to read?**
Any use of trade names in this publication is for descriptive purposes only and does not imply endorsement by the US Geological Survey
**How can I download or order the data?**
Availability in digital form:
Data format:ARCESize: 6Network links:http://pubs.usgs.gov/imap/i-2627/ARCEXPORT/i2627.e00.tar.gz
- Cost to order the data:  none   
Who wrote the metadata?
Dates:
- Last modified: 13-Jun-2016  
- Metadata author:   Peter N SchweitzerUSGS Midwest AreaCollection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/Mail Stop 95412201 Sunrise Valley DrReston, VAspan>USA
703-648-6533 (voice)703-648-6252 (FAX)pschweitzer@usgs.govMetadata standard: 
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            Generated by mp version 2.9.48 on Tue Jul 03 20:04:49 2018