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   
 
  Geochemical exploration in the Qarachaman sheet of 1:100000 By: Nastaran Ebrahimi, Maryam Dehghan, Reza Hosseinzadeh, Behzad Barati, Hossein Hematian GSI
Geochemical Survey, Qarachaman
Geochemical exploration in the Qarachaman sheet of 1:100000
 
  Page 1
 
   Geochemical exploration in the Qarachaman sheet of 1:100000
  
   By: Nastaran Ebrahimi, Maryam Dehghan, Reza Hosseinzadeh, Behzad Barati, Hossein Hematian
  
   GSI
  
   Abstract
   This project is about geochemical survey in the 1:100000 sheet of Qarachaman. It is located between 37 30' to 38 E and 47 to 47 30' N, in the Azarbaijan-e Sharqi Province. The sheet consists of four 1:50000 sheets including Abarghan, Torkaman, Siyahchaman, and Dordoran.
   The 1:100000 sheet of Qarachaman is located in the Miyaneh 1:250000 quadrangle that includes Eocene volcano-sedimentary rocks of the Orumiyeh-Dokhtar zone. Available rocks involve post-Eocene volcanic and sedimentary rocks that can divided into two northern (Bozgush range) and southern (Shahrichay-Qarachaman) sections.
   Geochemical survey was done through sampling from stream sediments, on the base of 1:100000 topography map of the area. Each sample consisted of 100 to 200 grams alluvial deposit that sieved with 80-mesh sieve. Sample points were recorded by GPS. After converting the samples to 200 mesh, totally, 745 samples were analyzed for 44 elements.
   Obtained data processed to calculate the enrichment index of elements. Several geochemical anomalies identified to be checked in the field. We used heavy mineral and mineralized rock sampling for controlling the geochemical anomalies. About 100 heavy mineral samples were studied for this sheet. In the next step, we modeled those anomalies that verified as mineralization zones.
   Applied data for ore deposit modeling of anomalies include exposed stratigraphy, host rock, age, probable alterations, geochemical parageneses, ore minerals in the heavy mineral samples, structure and texture of host rock, structure and texture of mineralized zone, alteration products and tectonic setting.
   11 favorable anomalies were introduced and prioritized for further studies. Four anomalies have first priority, two anomalies have second priority and two anomalies have third priority. Also, anomalies I, III and XI are invaluable. The report contains detailed description of anomalies.
  
 
 
Publications  Library
Glossary  Papers
 
 
 
 
FAQ  Members
Job Offer  Training
 
 
 
 
• NanoBioEarth Database 
• Medical Geology Database 
• Geological Atlas of Roads 
• 4th National Development Plan 
• Marine Geology 
• Geography information 
• Mines and Deposits of 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:• Geo Hazard Of South Caspian • Geoscience database of ALBA • Geoscience Database of ECO 
• GEOLOGICAL SURVEY OF IRAN • Tajikistan Geoscience Database • Geo Database of Venezuela • 4th National Development Plan 
• Export & Import Regulation Act     
 
 
Maps:• Map of Iran's Last 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 
• Map of Iran's Earthquake    
 
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