Online link | https://geo-nsdi.er.usgs.gov/metadata/open-file/97-681/lampdike.faq.html |
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Description | This cover includes locations of alkaline ultramafic igneous rocks. The igneous rocks are evidence for Permian extensional reactivation of the faults of continental rifts in the map area. The igneous rocks are Permian lamprophyres and mica peridotites. |
Originators | Rhea, Susan |
Publication | U.S. Geological Survey Open-File Report 97-0681 |
Location of 53 cities in southern United States
Label | Definition |
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CITY | Name of city |
CAPITAL | Location of state capitals |
POP | 1980 population, in thousands |
County and state lines
Label | Definition |
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BNDYTYPE | Boundary type |
804 dams (point attributes defined by Water Resources Division)
Label | Definition |
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25 earthquakes with Modified Mercali Intensity > 5
Label | Definition |
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Year | Year earthquake occurred |
MON | Month earthquake occurred |
DAY | Day earthquake occurred |
MAG | moment magnitude, estimated for historical earthquakes from felt area |
Boundaries of Quaternary and Cenozoic-Mesozoic units
Label | Definition |
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UNIT | Unit age |
Location of Quaternary and Cenozoic-Mesozoic units at specific locations (same attributes as polygon coverage PP1538GEOL.PAT)
Label | Definition |
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outlines of hypothetical Modified Mercali Intensity values; digitized from Algermissen and Hopper (1985)
Label | Definition |
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MMI | Modified Mercali intesity values |
Locations of hypothetical Modified Mercali Intensity values; digitized from Algermissen and Hopper (1985) (same attributes as polygon coverage PP1538MMI.PAT)
Label | Definition |
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44 facilities housing significant nuclear material
Label | Definition |
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TYPE | Character description |
X-COORD | Longitude of nuclear material |
Y-COORD | Latitude of nuclear material |
Selected interstate and first class roads (see National Mapping Program (NMP) data users guide for information on attribute values)
Label | Definition |
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All railroads except those in sec06 (section 6) (see National Mapping Program (NMP) for information on attribute values)
Label | Definition |
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All railroads in sec06 (section 6) (see National Mapping Program (NMP) for information on attribute values)
Label | Definition |
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Streams (See National Mapping Program (NMP) data users guide for more information on attribute values)
Label | Definition |
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USA national borders (see National Mapping Program (NMP) data users guide for more information on attribute values)
Label | Definition |
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Outlines of large water bodies (see National Mapping Program (NMP) data users guide for more information on attribute values)
Label | Definition |
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