Geologic map (v.2 - USGS - 2006)
Data and Resources
This dataset has no data
Additional Info
| Field | Value |
|---|---|
| Source | https://app.mapx.org/static.html?views=MX-JH8E4-MZKY6-WNG6M&zoomToViews=true#JAAc6 |
| Author | UNEP/GRID-Geneva |
| Maintainer | UNEP/GRID-Geneva |
| Last Updated | December 7, 2022, 07:45 (UTC) |
| Created | December 7, 2022, 07:45 (UTC) |
| GUID | MX-JH8E4-MZKY6-WNG6M |
| Issued | 2017-08-11 16:27:28 |
| Language | EN |
| Modified | 2018-09-25 12:37:17 |
| Publisher email | info@mapx.org |
| Publisher name | UNEP/GRID-Geneva |
| Theme | Web Map |
| data_type | geospatial |
| keywords_m49 | AFG |
| projects_description | UNEP Afghanistan |
| projects_id | MX-A3M-LVK-V7S-XOT-J48 |
| projects_title | UNEP Afghanistan |
| range_end_at_year | 2018 |
| range_start_at_year | 2006 |
| source_abstract | This shapefile contains polygons that describe the geologic age and lithologies of outcrops in Afghanistan. Purpose: Surface geology is an important indication of the extent of structural basins and uplifts, the presence or absence of source rock and reservoir rock intervals, and in delineating more local structural trends. Supplemental_Information: As part of the U.S. Government's effort to aid in reconstructing Afghanistan's economy and infrastructure, the U.S. Geological Survey (USGS) is cooperating with the Afghanistan Ministry of Mines and Industry (AMMI) to assess the undiscovered petroleum (includes crude oil, natural gas, and natural gas liquids/condensates) resources of Afghanistan. Funding for this effort was provided by the US Trade and Development Agency (USTDA). Data credit and editing: Geologic data are derived directly from Abdullah and Chmyriov (1977). The USGS has made no attempt to modify the original line data as presented in the original map, but has modified some of the map unit descriptions and interpretations where appropriate. The attribute table was further edited by UNEP-GRID with minor modifications from the original "glgafg.shp" published by USGS. Modifications mostly concern the creation of a "Legend" attribute that could express a legend in agreement with the format used by USGS in the pdf version of the Geologic Map of Afghanistan (2006) that was published with this report: http://pubs.usgs.gov/of/200671038. Data Quality Information: Attribute Accuracy: Attributes were checked by manually comparing hard copy plots of the digital data with the source materials. Authors and USGS map editors performed separate reviews. Logical_Consistency: Map elements were visually checked by the authors for overshoots, undershoots, duplicate features, and other errors. ARC/INFO software was used to make coverages from the shapefiles to assure all polygons were closed and no duplicates were present. Coincident lines do exist between the geology, fault and contact shapefiles where appropriate. Completeness: Geolgic units are derived directly from Abdullah and Chmyriov (1977) at a scale of 1:500,000 in this database. Additional mapping by the USGS and Afghan Geological Survey is anticipated in the future. Horizontal Positional Accuracy: Horizontal accuracy of geology from Abdullah and Chmyriov (1977) is highly variable depending upon methods of compilation and extrapolation between areas of field work. Error in the original dataset is perpetuated in this report by presenting the data at a larger scale. |
| source_title | Geologic map (v.2 - USGS - 2006) |
| spatial | AFG |