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Information by "Scale"
 
    Geoscientific researches are performed in various scales. Scale explains the proportion of size of feature on the map rather than ground. There are some common scales in many countries like 1000k, 500k, 250k, 100k and 50k.
Some modern countries, which finish, national mapping in small scales, are going to prepare map with larges scales than 50k.
  Main used scales in Iran include:

     5000k
     2500k
     1000k_National Scale
     250k_Provincial Scale
     100k_Zonal Scale
     50k_ Semi-Detailed Scale
     25k_Detailed Scale
     5k
     1k
     0.5k
Choose the scale (definite sheets)
[2500 K sheets]
[National] (More)
   Geoscience information is classified by their scales, click on topic to find related information
   5000k Scale
   This scale includes maps with coverage of Iran or Middle East.
   1000k Scale
   National maps with coverage of whole country.
   250k Scale
   Regional information of geology and structure is provided through these maps. Each map contains 15000 square kilometers of country, one degree in latitude and 1.5 degree in longitude of geographical coordinates. At now 250k mapping of country was completed by GSI through 121 sheets. But National Iranian Oil Company mapped some parts of Zagros Mountain Belt. Each map has an explanatory book report in Persian or English.
   100k Scale:
   100k geological maps are considered as basic geological maps. Engineering maps also are prepared in some hazardous regions. The maps have explanatory report which printed adjacent or back of the paper map. Each 100k map contains 2500 square kilometers of country, 0.5 degree both longitudinally and latitudinally in length.
   50k Scale
   National Geographical Organization provided topographic map of this scale for whole of country, digitizing of this maps is been done by NGO.
   25k Scale
   In addition to areal geology of mineralized zones, they include information of relationship between structural condition and mineralization. These maps are provided during prospecting projects. 25k topographic mapping of country is going to finalize by National Cartographic Center. Geological mapping of prospecting projects can involve 20 to 100 square kilometers area.
   5k Scale
   Generally semi-detailed exploration contributes with 5k mapping in the area of maximum 20 square kilometers. Using cartographic camera and satellite imagery is common for producing these maps.
   1K Scale
   Detailed Exploration of some hectares to kilometers area is associated with these maps.
   0.5k Scale
   Mineral maps, which show mineralized zone and the relation of different phenomena. The maps can include some hectares or kilometers of mineral district.
 
 
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   Others Activities:• Geoscience database of ALBA • Geoscience Database of ECO • GEOLOGICAL SURVEY OF IRAN 
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• Select state on iran map • Geological Map of Iran(1:1000, 000 Scale) • 2500 K Magnetic Lineament Map of Iran 
    
 
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