فارسي | English
  About Us | About Iran | Contact Us | Staff Info[Geoportal Info] [Maps] [Mining Info] [Other Activities]  
 
  News | Events | Photo Gallery | Downloads | Links | Kids  Search    Region    Scale    Subject   :Access to information by   Home | Newest   
 
  Report on systematic geochemical exploration of 1:100000 sheet of Shakran Geological Survey of Iran
Geochemical explor., Shakran
Report on systematic geochemical exploration of 1:100000 sheet of Shakran
 [Page 1 to 2] 12  Next 
  Page 1
 
بعديآخرين
   Report on systematic geochemical exploration of 1:100000 sheet of Shakran
  
   Abstract
   Abstract
   The 1:100000 sheet of Shakran is located between the boundaries of three Qazvin, Tehran and Mazandaran provinces, and between 5030' to 51 Eastern longitudes and 36 to 3630' northern latitudes. Most part of this sheet is located in the Alborz structural zone and a small southern portion of it belongs to the Sabzevar-Saven zone. Folds and faults in the region are abundant and have E-W trend. Outcropped rock units in the area include shale and clastic deposits of Kahar, Laloun sandstone, Soltaniyeh dolomite, Top Quartzite, Mila, Cambrian-Ordovician graptolite-bearing shales, basic magmas with clastic deposits of Jeroud, Mobarak limestone of lower Carboniferous, Permian Doroud, Ruteh and Nesan carbonate rocks, Jurassic Shemshak and Lar deposits, tuff and basic magmatic rocks of Karaj and Pleistocene gravels. Intrusive rocks in the area include monzonite, granodiorite and loco-granite, olivine lenses and sometimes lamprophyres that caused the contact metamorphism in Hornblende-hornfels facies.
   Mineral resource of the area are mostly non metallic and include coal, barite, and gypsum and sometimes copper mineralization (in Parachan lavas), lead, manganese, magnetite in hydrothermal hallows of Alamkouh pluton, Precambrian metamorphic rocks, quartzite of Paleozoic and acidic tuff of Paleogene.
   In this survey 615 samples taken and analyzed for 43 elements. Of these samples, 74 ones were mono-rock, 102 ones two-rock, 108 ones three-rock, 89 ones four-rock and 154 ones were more than four-rock samples.
   Most sensibility is for cobalt with 480 credits (maximum in basic rocks and minimum in carbonate rocks) followed by copper (87 credits), nickel (65), rubidium (60), strontium (30.5), and scandium (30). Least variation is for Yttrium (1.9).
   For processing the data, at first censored data were replaced and then required analyses run on the data. The geochemical assessments led to identification of several anomalies with various priorities.
   Below table shows the number of first grade identified anomalies per elements.
  
 
 
Publications  Library
Glossary  Papers
 
 
 
 
FAQ  Members
Job Offer  Training
 
 
 
 
• Medical Geology Database 
• Geological Atlas of Roads 
• Marine Geology 
• Geography information 
• Mines and Deposits of Iran 
• Land Geophysics Database- Iran 
• Landslide Database of Iran 
• Exploration Area DB 
• Copper Database 
• Gold Database  
• Geoscience Laboratories 
• Mineral Information 
• Bibliographic Database 
• Geochemistry Database 
• Earthquake database 
• Abandoned mines DB of Iran 
• Mineral processing database 
• Minerals database 
 
 
 
 
Login Name:
Password:
Sign Up for membership ]
 
 
 
   Others Activities:• Geoscience database of ALBA • Geoscience Database of ECO • GEOLOGICAL SURVEY OF IRAN 
• Tajikistan Geoscience Database • Geo Database of Venezuela • 4th National Development Plan • Foreign Investment(FIPPA) 
• The general policies (Mines) • 26th Symposium on Geosciences • Ongoing projects   
 
 
Maps:• Map of Iran's Earthquake • Distribution Map of mineral Processing Plants 
• Mineral Distribution Map of Iran • Geosciences laboratories distribution map of Iran • Orohydrographic Map of Iran 
• Select state on iran map • Geological Map of Iran(1:1000, 000 Scale) • 2500 K Magnetic Lineament Map of Iran 
    
 
Best viewed:1024*768
National Geoscience Database Of IRAN
URL:www.ngdir.ir
Contact Mail:Info@ngdir.ir
 
 
 Search with:           
Designed by Payvand Software Group  Privacy | Copyright | Disclaimer