Online link | https://geo-nsdi.er.usgs.gov/metadata/map-mf/2381/d/metadata.faq.html |
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Description | An aeromagnetic map of the Death Valley groundwater model area was prepared from published aeromagnetic surveys as part of an interagency effort by the U.S. Geological Survey and the U.S. Department of Energy to help characterize the geology and hydrology |
Originators | Ponce, David A. and Blakely, Richard J. |
Publication | U.S. Geological Survey Miscellaneous Field Studies Map MF-2381-D |
The databases described in this report were compiled in ARC/INFO, a commercial Geographic Information System by Environmental Systems Research Institute. Almost all the attributes in the various attribute tables of the coverages included in the report are set or calculated by ARC/INFO. The exceptions being <COVER>- ID, LINETYPE, UNIT, POINTTYPE, PATTERN, STRIKE, and DIP. LINETYPE, UNIT and POINTTYPE are author added aspects of the coverages added to the PAT or AAT and are used to describe the type of line (LINETYPE), area (UNIT), point or arcmarker ( POINTTYPE). LINETYPE and POINTTYPE are each defined with WIDTH 50, OUTPUT 50, and TYPE C (character). UNIT is defined with WIDTH 8, OUTPUT 8, and TYPE C. STRIKE and DIP are only present in UINK_ POINT.PAT, because they describe bedding orientation of point objects. Each is defined with WIDTH and OUTPUT of 3, and TYPE I ( integer). PATTERN was another author-added attribute only in UINK_POINT.PAT, and is defined by WIDTH 3, OUTPUT 3, and TYPE I. The data in PATTERN correlates directly with specific values in the UNIT field.
The report combined with uinkmap.eps, uinkmap.pdf, uinkgeo.doc, uinkgeo.txt, or uinkgeo.pdf
attribute table of uink_poly
Label | Definition |
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UNIT | Geologic unit label |
PATTERN | Graphic fill pattern |
attribute table of uink_poly
Label | Definition |
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LINETYPE | Type of geologic or geographic feature denoted by a line in the database. |
POINTTYPE | arc marker point type |
Attribute table of uink_fold
Label | Definition |
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LINETYPE | Type of geologic or geographic feature denoted by a line in the database. |
POINTTYPE | arc marker point type |
Attribute table of uink_point
Label | Definition |
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POINTTYPE | The type of planar feature which was observed and the orientation of which was measured at this point. |
DIP | The inclination of planar structures measured in degrees down from horizontal. |
STRIKE | The orientation of a horizontal line in an inclined planar structure measured in degrees clockwise from north. |