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Geochemistry is the study of chemical elements and their isotopes, and their distribution and abundance within minerals, ores, rocks, waters, and the atmosphere. Geochemistry also includes the dynamic aspects of reaction and circulation of the elements in nature. While geochemistry is most often used in reference to the Earth, it also applies to the study of the chemical elements and their isotopes on the moon and other planets.

Crystallography@	Environmental_Chemistry@
Environmental_Microbiology@	Mineralogy@
Petroleum@	Radiometric_Dating@
Rocks and Minerals@	Soil_Mineralogy@
Taphonomy@	Chemistry
Databases	Economic Geochemistry
Education	Organizations
People	Petrology
Products and Services	Publications
Geology	Water_Resources@

• Archives of ISOGEOCHEM Searchable archives of the e-mail group for stable isotope geochemistry.
• Biogeosciences Information, discussion, and resources to help fulfill the scientific need to bridge the earth and life sciences.
• Fluid Inclusions Primarily a directory to fluid inclusion-related resources. Links are provided for old and upcoming meetings and short courses, a few organizations, and some archived forums on research issues.
• Geotech.org - Geology and Geochemistry Educational site for those interested in learning about surface exploration techniques used for oil and gas. Includes images, analogs, bibliographies, and services.
• ISOGEOCHEM Information about the e-mail discussion list for stable isotope geochemistry. Includes many isotope-related links including available positions, research laboratories, short course and workshop listings, and a searchable message archive.
• Martian Geochemistry Summarizes the geochemical results obtained by NASA's Mars Pathfinder mission. Includes plots of geochemical trends, and comparisons with earlier Viking mission data as well as with Earth geochemistry.
• Stable Isotopes and Mineral Resource Investigations An information hand-out from the US Geological Survey, introducing the topic of stable isotopes and providing some examples of their use in determining the origins of mineral deposits in the United States.
• The Geochemistry Portal Organized collection of links, including news, organizations, universities, laboratories, publications, and databases. Has search and ability to submit links for inclusion.

 

 

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