Filters: Tags: Libya (X)4 results (136ms)
Album caption and index card: Sand-dune encroachment near village of Agelat. Wasteland resulting from destruction of natural vegetation and lack of cultivation. The sand is taking over in this oasis south of Agelat. Libya. Circa 1958. Published in U.S. Geological Survey Professional Paper 660, Figure 5-A. (1970).
Compilation of Geospatial Data (GIS) for the Mineral Industries and Related Infrastructure of Africa
This geodatabase reflects the U.S. Geological Survey’s (USGS) ongoing commitment to its mission of understanding the nature and distribution of global mineral commodity supply chains by updating and publishing the georeferenced locations of mineral commodity production and processing facilities, mineral exploration and development sites, and mineral commodity exporting ports in Africa. The geodatabase and geospatial data layers serve to create a new geographic information product in the form of a geospatial portable document format (PDF) map. The geodatabase contains data layers from USGS, foreign governmental, and open-source sources as follows: (1) mineral production and processing facilities, (2) mineral exploration...
Yale stocks and flows database (YSTAFDB) describing anthropogenic materials cycles, recycling, and criticality for 102 materials on spatial scales ranging from suburbs to global and timescales from the early 1800s to circa 2013
This data release presents the Yale stocks and flows database (YSTAFDB). Its data describe the use of 102 materials from the early 1800s to circa 2013 through anthropogenic cycles, their recycling and criticality properties, and on spatial scales ranging from suburbs to global. This data collection was previously scattered across multiple non-uniformly formatted files such as journal papers, reports, and unpublished spreadsheets. These data have been synthesized into YSTAFDB, which is presented as individual comma-separated text files and also in MySQL and PostgreSQL database formats. Consolidation of these data into a single database can increase their accessibility and reusability, which is relevant to diverse...
Sand encroachment on high ridges in southwest Libya. The sand has completely covered the ridge at the left and is gradually covering the entire ridge. Rock outcrops are partly exposed in the center and almost completely bare on the right side. Photograph taken along the sand areas northwest of the Tanezzuft valley about 30 kilometers west of Serdeles. Libya. Circa 1958. Published in U.S. Geological Survey Professional Paper 660, Figure 11. 1970.