Data and Results for GIS-based Identification of Areas that
have Resource Potential for Sediment-hosted Pb-Zn Deposits
in Alaska
Description
This data release contains the analytical results and the evaluated
source data files of a geospatial analysis for identifying areas in
Alaska that may have potential for sediment-hosted Pb-Zn (lead-zinc)
deposits. The spatial analysis is based on queries of statewide
source datasets Alaska Geochemical Database (AGDB3), Alaska Resource
Data File (ARDF), and Alaska Geologic Map (SIM3340) within areas
defined by 12-digit HUCs (subwatersheds) from the National Watershed
Boundary dataset. The packages of files available for download are:
1. The results in geodatabase format are in
SedPbZn_Results_gdb.zip. The analytical results for
sediment-hosted Pb-Zn deposits are in a polygon feature class which
contains the points scored for each source data layer query, the
accumulative score, and a designation for high, medium, or low
potential and high, medium, or low certainty for sediment-hosted
Pb-Zn deposits for each HUC. The data is described by FGDC metadata.
An mxd file, layer file, and cartographic feature classes are provided
for display of the results in ArcMap. Files sedPbZn_scoring_tables.pdf
(list of the scoring parameters for the analysis) and
sedPbZn_Results_gdb_README.txt (description of the files in this
download package) are included.
2. The results in shapefile format are in
SedPbZn_Results_shape.zip. The analytical results for
sediment-hosted Pb-Zn deposits are in a polygon feature class which
contains the points scored for each source data layer query, the
accumulative score, and designation for high, medium, or low
potential and high, medium, or low certainty for sediment-hosted
Pb-Zn deposits for each HUC. The results are also provided as a
CSV file. The data is described by FGDC metadata. Files
sedPbZn_scoring_tables.pdf (list of the scoring parameters for the
analysis) and sedPbZn_Results_shape_README.txt (description of
the files in this download package) are included.
3. The source data in geodatabase format are in
SedPbZn_SourceData_gdb.zip. Data layers include AGDB3, ARDF,
lithology from SIM3340, and HUC subwatersheds, with FGDC metadata.
An mxd file and cartographic feature classes are provided for
display of the source data in ArcMap. Also included are two python
scripts 1) to score the ARDF records based on the presence of
certain keywords, and 2) to evaluate the ARDF, AGDB3, and lithology
layers for the potential for sediment-hosted Pb-Zn deposits within
subwatershed polygons. Users may modify the scripts to design their
own analyses. Files sedPbZn_scoring_table.pdf (list of the scoring
parameters for the analysis) and sedPbZn_sourcedata_gdb_README.txt
(description of the files in this download package) are included.
4. The source data in shapefile and CSV format are in
SedPbZn_SourceData_shape.zip. Data layers include ARDF and
lithology from SIM3340, and HUC subwatersheds, with FGDC metadata.
The ARDF keyword tables available in the geodatabase package are
presented here as CSV files. All data files are described with the FGDC
metadata. Files sedPb_Zn_scoring_table.pdf (list of the scoring
parameters for the analysis) and sedPbZn_sourcedata_shapefile_README.txt
(description of the files in this download package) are included.
5. Appendices 2, 3 and 4, which are cited by the larger work
OFR2020-1147. Files are presented in XLSX and CSV formats.
Resources
| Name |
Format |
Description |
Link |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P943BUQZ |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.5f74f4bf82cef8d1839a1592.xml |
Tags
- lead-zinc-deposits
- usgs-5f74f4bf82cef8d1839a1592
- data-analysis-and-visualization
- geology
- geoscientificinformation
- geographic-information-systems
- earth-science
- scientific-interpretation