USGS Open-File Report 2005-1231
Some of the maps, grids, and databases used for this report are available for download. Please note that the file containing the maps, grids, and databases is large (about 150 Mb) and can take a long time to download. Click here to download the file. The maps and grids can be used by downloading a free viewer available from Geosoft, Inc. If you are unable to download the file or do not wish to do so, you can get information for ordering a copy from USGS Information Services, Box 25286, Federal Center, Denver, CO 80225 (telephone 1-888-ASK-USGS or 303-202-4700; fax 303-202-4693).
Table D1 lists the maps and grids that are available with a brief description of each. Table D2 lists the data columns of the flightline database with a brief description of each. Table D3 lists layers that are present in the map files but are initially hidden.
Table D1. List of maps, grids, and databases available for download.
File Name |
Comment |
sotx_K.map |
Map of potassium concentrations |
sotx_U.map |
Map of uranium concentrations |
sotx_Th.map |
Map of thorium concentrations |
sotx_CCM.map |
Composite-color map of potassium, uranium, and thorium |
class.map |
Map showing results of classification |
sotx_Kf_msk.grd |
Grid of potassium concentrations |
sotx_Uf_msk.grd |
Grid of uranium concentrations |
sotx_Thf_msk.grd |
Grid of thorium concentrations |
sotxrad.gdb |
Database of flightline data |
Table D2. List of data columns of the flightline database with a brief description of each.
Column Name |
Description |
Line |
Flightline number |
Long |
Longitude in decimal degrees (NAD83) |
Lat |
Latitude in decimal degrees (NAD83) |
UTMX84 |
X-coordinate, UTM, WGS84 |
UTMY84 |
Y-coordinate, UTM, WGS84 |
UTMX27 |
X-coordinate, UTM, NAD27 |
UTMY27 |
Y-coordinate, UTM, NAD27 |
fid |
Fiducial number |
Date |
Date flown (YYYYMMDD) |
Time |
Data acquisition time |
Alt_eff |
Effective altitude (m) |
Temp |
Used for temporary storage |
Livetime |
Spectrometer livetime (hundreths of a second) |
Cosmic_raw |
Observed Cosmic count rate |
TC_raw |
Observed gross count rate |
K_raw |
Observed potassium window count rate |
U_raw |
Observed uranium window count rate |
Th_raw |
Observed thorium window count rate |
Up_raw |
Observed count rate in upward looking crystal |
TC |
Corrected gross count rate |
K |
Potassium concentrations (percent K) |
eU |
Uranium concentrations (ppm eU) |
eTh |
Thorium concentrations (ppm eTh) |
Cup |
Upward looking count rate |
Radar |
Radar altimeter (m) |
Barometer |
Barometric altitude (m) |
Kf |
Filtered potassium concentrations |
Uf |
Filtered uranium concentrations |
Thf |
Filtered thorium concentrations |
Table D3. Listing of layers present in the maps but initially hidden.
Layer Name |
Description |
POST_cities_Name |
City names |
SYMB_cities |
Symbols marking city locations |
CountyLabelsData |
County names |
PATH_UScounties |
County boundaries |
PLY_Water |
Filled polygons indicating water (includes small water bodies) |
PATH_Water |
Outines around water bodies |
PLY_WaterBodies |
Filled polygons indicating major water bodies |
PLY_Qds |
Filled polygons for mapped sand dunes |
PLY_Qs |
Filled polygons for mapped sheet sand deposits |
PLY_Ql |
Filled polygons for Lissie Formation |
PLY_Qbm |
Filled polygons for clay and mud deposits of Beaumont Formation |
PLY_Qbf |
Filled polygons for floodplain deposits of Beaumont Formation |
PLY_Qb |
Filled polygons for undivided Beaumont Formation |
PLY_Qas |
Filled polygons for sandy floodplain deposits of Rio Grande |
PLY_Qam |
Filled polygons for muddy floodplain deposits of Rio Grande |
PLY_Tg |
Filled polygons for Goliad Formation |
PLY_Tgc |
Filled polygons for Goliad Formation caliche |
PATH_texasrds |
Major Texas roads |
PATH_hidalgords |
Hidalgo County roads |
PATH_willacyrds |
Willacy County roads |
PATH_hydro |
Lines marking streams and canals |
PATH_sotxrad |
Lines marking the flightlines |
Histogram Comparisons | References