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  3. High resolution helicopter-borne magnetic and electromagnetic survey Eureka Graben area, Colorado September 1999

High resolution helicopter-borne magnetic and electromagnetic survey Eureka Graben area, Colorado September 1999

Dates

Publication Date
Start Date
1999-05-27
End Date
1999-06-09

Citation

Anderson, E.D., Deszcz-Pan, M., Yager, D.B., and Smith, B.D., 2018, High resolution helicopter-borne magnetic and electromagnetic survey Eureka Graben area, Colorado September 1999: U.S. Geological Survey data release, https://doi.org/10.5066/F75D8R1W.

Summary

On September 25, 1998, SIAL Géosciences Inc. (SIAL) was awarded Department of Interior, contract 98CRCN1018, by the U.S. Geological Survey. This contract required SIAL to carry out a high-sensitivity magnetic and electromagnetic helicopter survey over one block located in the Eureka Graben Area near Silverton, Colorado. The primary goal of this project was to provide digitally recorded and processed magnetic and electromagnetic data in order to evaluate geologic and hydrologic resources of the Eureka Graben Area. The base of on-site field operations was Silverton, Colorado. The survey was carried out by SIAL between May 27th and June 9th, 1999. This report describes the survey parameters, data acquisition and processing procedures, [...]

Contacts

Point of Contact :
Eric D Anderson
Originator :
Eric D Anderson, Maria Deszcz-Pan, Douglas B Yager, Bruce D Smith
Metadata Contact :
Eric D Anderson
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Energy and Minerals
SDC Data Owner :
Geology, Geophysics, and Geochemistry Science Center

Attached Files

Click on title to download individual files attached to this item.

eureka.xml
“Metadata file for grids and flight line data archive”
Original FGDC Metadata
View 		40.81 KB application/fgdc+xml
EUREKA-O.XYZ
“Original magnetic & electromagnetic data archive” 		172.36 MB chemical/x-xyz
EUREKA-O.TXT
“EUREKA-O.XYZ field description” 		1.74 KB text/plain
EUREKA-C.XYZ
“Corrected magnetic & electromagnetic data archive” 		190.88 MB chemical/x-xyz
EUREKA-C.TXT
“EUREKA-C.XYZ field description” 		2.98 KB text/plain
EUREKA-X.XYZ
“Centroid depth and resistivity data archive” 		69.74 MB chemical/x-xyz
EUREKA-X.TXT
“EUREKA-X.XYZ field description” 		1.28 KB text/plain
MAG.gxf
“Levelled total magnetic field grid” 		367.51 KB application/gxf
RES886.gxf
“Coaxial resistivity grid 886 Hz” 		1.38 MB application/gxf
RES984.gxf
“Coplanar resistivity grid 984 Hz” 		356.4 KB application/gxf
RES4310.gxf
“Coplanar resistivity grid 4310 Hz” 		355.77 KB application/gxf
RES4836.gxf
“Coaxial resistivity grid 4836 Hz” 		1.39 MB application/gxf
RES34960.gxf
“Coaxial resistivity grid 4836 Hz” 		1.01 MB application/gxf
ZGPS.gxf
“GPS Z grid” 		326.75 KB application/gxf
README.TXT
“ASCII file with brief description of data sets” 		2.95 KB text/plain
EUREKA.pdf
“Contractor report” 		890.65 KB application/pdf
FlightLineMap.jpg
“Flight line map” 		thumbnail 1.13 MB image/jpeg
Shapefile: Eureka_footprint.zip
Eureka_footprint.CPG
“Eureka Survey Footprint” 		5 Bytes
Eureka_footprint.dbf
“Eureka Survey Footprint” 		77 Bytes
Eureka_footprint.prj
“Eureka Survey Footprint” 		145 Bytes
Eureka_footprint.sbn
“Eureka Survey Footprint” 		132 Bytes
Eureka_footprint.sbx
“Eureka Survey Footprint” 		116 Bytes
Eureka_footprint.shp
“Eureka Survey Footprint” 		3.98 KB
Eureka_footprint.shp.xml
“Eureka Survey Footprint” 		1.69 KB
Eureka_footprint.shx
“Eureka Survey Footprint” 		108 Bytes
Shapefile: Eureka_flightlines.zip
Eureka_flightlines.cpg
“Eureka Survey Flight Lines” 		5 Bytes
Eureka_flightlines.dbf
“Eureka Survey Flight Lines” 		3.64 KB
Eureka_flightlines.prj
“Eureka Survey Flight Lines” 		145 Bytes
Eureka_flightlines.sbn
“Eureka Survey Flight Lines” 		3.46 KB
Eureka_flightlines.sbx
“Eureka Survey Flight Lines” 		372 Bytes
Eureka_flightlines.shp
“Eureka Survey Flight Lines” 		158.4 KB
Eureka_flightlines.shx
“Eureka Survey Flight Lines” 		2.7 KB

Purpose

Airborne data were collected to suppliment geologic, geochemical, and hydrological studies. New airborne geophysical data were needed because only available data at the time of the study were regional-scale total field magnetic and radiometric data.
Flight line map
Flight line map

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Communities

  • USGS Data Release Products
  • USGS Geology, Geophysics, and Geochemistry Science Center

Associated Items

Tags

Provenance

These data represent the data files as delivered by SIAL Geoscience Inc.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F75D8R1W

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