GEOLOGICAL DATA SETS

Several geological data sets are present in the GEOID environment. These data sets include a new tectonic map of the Middle East and North Africa region which was developed by the Cornell Middle East and North Africa group, a low resolution global geology map, a detailed geology map of the United States, and additional data sets such as mine locations in the Middle Eastern and North African countries, world stress map, and historically active volcanoes of the world.
 



Tectonic Map of the Middle East and North Africa


Several tectonic and geology maps in the Middle East and North Africa have been digitized and a uniform scale tectonic map of this region has been created. This data set includes features like faults, volcanics, basement outcrops, and ophiolites. Most features in the tectonic map have also been supplemented with related information, such as the activity of faults, detailed age information, etc. Figure 25 shows all the faults in the region. These data sets can be accessed through the "Tectonic Maps" button under the "Geological Data Sets", and then under the "Middle East and North Africa Tectonic Map" button (Figure 26). Using this menu, any of the tectonic features can be selected and displayed, and features in the map can be identified.

 



Mine Locations

Mine locations of most of the Middle East and North African countries have been entered into the system (Figure 27). The data are organized by country and can be accessed through the menu button available in the "Geological Data Sets" menu. Detailed information exists for Algeria, Egypt, Iran, Iraq, Israel, Jordan, Libya, Syria, Tunisia, Turkey, and Morocco mines. In addition, less detailed mine locations from the USGS, DCW, and US Bureau of Mines sources have been added. Figure 28 shows the producing mine locations in the Middle East and North Africa region. Each of the locations are complete with attributes such as commodity, mine type, activity, etc.
 



World Stress Map

World stress data compiled by several organizations have been recently made available. We copied these data and placed them in GEOID with all their attributes. This data set includes stress direction estimated from earthquakes focal mechanisms, borehole measurements, and field data. This data set is available through the "World Stress Map" button under the geology data sets (Figure 29). A small region in the southern Dead Sea fault is shown with available stress measurements in Figure 30.
 



Holocene Volcanoes

Holocene volcano locations are a comprehensive list of historically active volcano locations (Figure 31). This data set is available for the entire world. The volcanoes data set can be accessed through the "Holocene Volcano Locations" button. There are four different categories classified: Erupted between 1900 1993, Erupted 1 1900, Erupted B.C. and/or undated, and thermal activity/uncertain.
 



World Geology Map

In addition to the data sets mentioned above there is a global geology map of the world. This map has lower resolution information, and it should be used with regional or continental scale applications. Figure 32 shows this data set.
 
 
 
 



US Geology Map

The 1:2,500,000 scale US geology map is available through the geological data sets option.
 
 
 
 


US Tectonic Map

Faults from 1:2,500,000 scale map is also available throught the geological data sets option.
 
 
 
 



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