Hubbard, Bernard, Mack, Thomas J., and Thompson, Allyson, 2012, Lineament Analysis of Mineral Areas of Interest in Afghanistan: Manually Delineated Lineaments: U.S. Geological Survey Open-File Report 2012-1048, U.S. Geological Survey, Reston, VA.This is part of the following larger work.
Hubbard, Bernard, Mack, Thomas J., and Thompson, Allyson, 2012, Lineament Analysis of Mineral Areas of Interest in Afghanistan: Open-File Report 2012-1048, U.S. Geological Survey, Reston, VA.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
The map projection used is Transverse Mercator.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 30
Ordinates (y-coordinates) are specified to the nearest 30
Planar coordinates are specified in meters
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257224.
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Water wells in bedrock aquifers are generally more productive where boreholes intersect fractures, or fracture zones, or are located in areas of more highly fractured bedrock. Lineament identification and analysis have long been used as a reconnaissance tool in identifying favorable groundwater resources in carbonate bedrock environments (Lattman and Parizek, 1964; Siddiqui and Parizek, 1971). More recently, lineament analysis has been used for identifying areas of greater well yields in other bedrock settings including crystalline bedrock (Mabee and other, 1994; Moore and others, 2002). Lineaments provide an indication of areas that warrant further investigation for optimal bedrock well placement. Lineaments may also indicate areas of preferential flow and storage of groundwater, and areas with a greater density of lineaments may indicate greater secondary porosity. The purpose of this coverage is to map lineaments that may be useful for locating potential groundwater resources in 24 selected areas of mineral interest in Afghanistan (Peters and others, 2007). Mapped lineaments range in length from greater than 0.6 kilometers (km) to less than 14 km, with features less than 0.1 km excluded from the trend analysis included in the accompanying report. Only portions of the country within and slightly near 24 mineralized areas of interest (AOIs) highlighted by Peters and others (2007; 2011) were mapped, with areas ranging from 478 to 9,750 square kilometers. These data were compiled for inclusion in "Bidding Packages" developed for the Task Force for Business and Stability Operations (TFBSO) of the Department of Defense in an interagency agreement with the U.S. Geological Survey of the Department of the Interior. They can be used by potential investors, along with other information, in assessing mineral and hydrologic resources at AOIs identified by the TFBSO and the Government of Afghanistan, Afghanistan Geological Survey of the Afghanistan Ministry of Mines.
Davis, Philip A., 2006, Calibrated Landsat ETM+ Nonthermal-Band Image Mosaics of Afghanistan: U.S. Geological Survey Open-File Report 2006-1345, U.S. Geological Survey, Reston, VA.Online Links:
Q2962_14m_UTM_NC Q2964_14m_UTM_NC Q3062_14m_UTM_NC Q3064_14m_UTM_NC Q3162_14m_UTM_NC Q3164_14m_UTM_NC Q3262_14m_UTM_NC Q3264_14m_UTM_NC Q3266_14m_UTM_NC Q3268_14m_UTM_NC Q3360_14m_UTM_NC Q3362_14m_UTM_NC Q3364_14m_UTM_NC Q3366_14m_UTM_NC Q3368_14m_UTM_NC Q3460_14m_UTM_NC Q3462_14m_UTM_NC Q3464_14m_UTM_NC Q3466_14m_UTM_NC Q3468_14m_UTM_NC Q3470_14m_UTM_NC Q3560_14m_UTM_NC Q3564_14m_UTM_NC Q3564_14m_UTM_NC Q3568_14m_UTM_NC Q3570_14m_UTM_NC Q3664_14m_UTM_NC Q3666_14m_UTM_NC Q3668_14m_UTM_NC Q3670_14m_UTM_NC Q3764_14m_UTM_NC Q3770_14m_UTM_NC
Person who carried out this activity:
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Edited by Peters, Stephen G., Ludington, Stephen D., Orris, Greta J., Sutphin, David M., Bliss, James D., and Rytuba, James J., 2007, Preliminary Non-Fuel Mineral Resource Assessment of Afghanistan 2007: Open-File Report 2007-1214, U.S. Geological Survey, Reston, Virginia.Online Links:
The mapped lineaments have no important attributes other than their geospatial position and intersections to help identify potential groundwater resources.
Horizontal accuracy is based on the Digital Elevation Model (DEM) data and Landsat images from which the lineament maps were derived. No attempt was made to compare horizontal map accuracy with those of published maps and (or) orthorectified base imagery from other sources.
Lineaments presented here were observed only within the mineral areas of interest defined by a previous study; their extent within Afghanistan outside these areas of interest was not determined as part of this study.
Efforts were made to apply lineament criteria in a uniform manner during examination of the areas of interest to improve identification objectivity. Field reconnaissance trips by Thomas Mack (U.S. Geological Survey) in 2009 and 2010 provided additional familiarity with lineaments in various terrains, in several mineral areas of interest in Afghanistan. However, visual lineament identification is inherently subjective, particularly with respect to one observer, and in some locations it is possible that cultural features, such as irrigation canals and roads, topographic ridges, or other nonfracture-related features, may be mistaken for lineaments. As such, lineaments require comparison with other data, and field investigation, to confirm their nature and relation to water-filled bedrock fracture zones.
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- Access_Constraints: none
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USGS Open-File Report 2012-1048
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
| Data format: | Shapefile (version 1.0) Size: 0.982 |
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| Network links: |
<http://pubs.usgs.gov/of/2012/1048/> |
(603) 226-7805 (voice)
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