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   
 
Search With:
Glossary
  
 About Glossary
 [Page 1 to 13] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] Next
  Results 1 to 10 of 125
Words List   (G)
NextLast
   gabbro  
Subject: The Earth
    A mafic, coarse-grained, plutonic igneous rock consisting mainly of Ca-plagioclase feldspar, pyroxene and possibly olivine, but no quartz. Gabbros form from the slow crystallization of magma, which is basaltic in composition.
 
 
  
   Gabbro   
Subject: rock
    Dark, medium- to coarse-grained, intrusive mafic igneous rock, commonly massive-appearing, generally lacking layering or banding; composed primarily of clinopyroxene and plagioclase; often altered.equivalent of basalt or diabase.
 
 
  
   Gaining stream  
Subject: Geology
    Streams that gain water from the inflow of groundwater through the streambed. Reference: Tarbouk, E.J. & F.K. Lutgens, (2006), EARTH, 8th edition, Pearson Education International.
 
  
   Gamma Rays  
Subject: Resources & Reserves
    A highly penetrating type of nuclear radiation, similar to x-rays and light, except that it comes from within the nucleus of an atom, and, in general, has a shorter wavelength. Gamma rays emission is a decay mode by which excited state of a nucleus de-excite to lower (more stable) state in the same nucleus. In our diagrams.
 
 
  
   Garnet  
Subject: Geology
    (a) A group of minerals of formula: A3B2(SiO4)3, where A= Ca, Mg, Fe+2, and Mn+2, and B = Al, Fe+3, Mn+3, V+3, and Cr. (b) Any of the minerals of the garnet group, such as the end members almandine (Fe-Al). andradite (Ca-Fe), grossular (Ca-Al), pyrope (Mg-Al), spessartine (Mn-Al). uvarovite (Ca-Cr). and glodmanite (Ca-V).-Garnet is a brittle and transparent to sub transparent mineral, having a vitreous luster, no cleavage. and a variety of colors, dark red being the most common. It occurs as an accessory mineral in a wide range of igneous rocks, but is most commonly found as distinctive euhedral isometric crystals in metamorphic rocks (gneiss, mica schist, eclogite); it may also be massive or granular. Garnet is used as a semiprecious stone and as an abrasive.
 
 
  
   Gas Chromatography / Mass Spectrometry  
Subject:  Laboratories
    This powerful technique is particularly suitable for the analysis of mixtures of volatile and low relative molecular mass compounds (< 800) such as hydrocarbons, fragrances, essential oils and relatively non-polar drugs. GC/MS with capillary column separation and electron (impact) ionization (EI) is available within the Mass Spectrometry Facility.


more information
 
 
  
   Gas Detection Tubes  
Subject:  Laboratories
    RAE Systems' large selection of Colorimetric Gas Detection Tubes offer quick, on-the-spot measurements of many gases and vapors at low cost. The tubes are easy to read with a sharp, clear color change and provide accuracy with no need for calibration.


more information
 
 
  
   Geiger Counter  
Subject: Resources & Reserves
    An ionization chamber with its vacuum and its applied potential so adjusted that a gamma ray or other ionizing particle passing through it causes a momentary current to flow. The surge of current can be amplified and counted so as to measure the intensity of radioactivity in the vicinity of the chamber.


http://xmlwords.infomine.com/xmlwords.htm?term=Geiger+Counter++
 
 
  
   Geo   
Subject: Geology
    A prefix meaning "Earth" Reference: Bates, R.L. & J.A.Jakson, GLOSSARY OF GEOLOGY, Second Edition, American Geology Institute, 1980
 
 
  
   geochemical  
Subject: The Earth
    Relating to the chemistry of rocks. Geochemistry is the branch of science dealing with the chemistry of the Earth.
 
 
  
NextLast
 
 
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