Geochemical Nodes

regions of intersection of two unlike geochemical systems—for example, the intersection of specific facies of cuprous sandstone sedimentary rock with superimposed endogenic processes along more recent tectonic dislocations. The superimposition of geochemical processes in geochemical nodes enhances the migration of chemical elements in unusual combinations and anomalous concentrations, resulting in the formation of complex deposits that contain groups of minerals. The term “geochemical nodes” was proposed by A. E. Fersman in 1931.

REFERENCE

Fersman, A. E. Geokhimicheskie problemy Soiuza, issue 2. Leningrad, 1931.

V. V. SHCHERBINA

单词	geochemical nodes
释义	Geochemical Nodes Geochemical Nodes regions of intersection of two unlike geochemical systems—for example, the intersection of specific facies of cuprous sandstone sedimentary rock with superimposed endogenic processes along more recent tectonic dislocations. The superimposition of geochemical processes in geochemical nodes enhances the migration of chemical elements in unusual combinations and anomalous concentrations, resulting in the formation of complex deposits that contain groups of minerals. The term “geochemical nodes” was proposed by A. E. Fersman in 1931. REFERENCE Fersman, A. E. Geokhimicheskie problemy Soiuza, issue 2. Leningrad, 1931. V. V. SHCHERBINA
随便看	national biodiesel accreditation program national biodiesel board it division national bioethics advisory commission national biological information infrastructure national biological survey national biomedical computational resource national biomedical tracer facility national bio resource project national biosurveillance advisory subcommittee national biosurveillance integration system national biotechnology information facility national biotechnology regulatory authority national biotechnology research council national biotechnology strategy national bioterrorism hospital preparedness program national biotherapy study group national biproducts institute national bird banding laboratory national bird control national bird dog challenge association national bird-feeding society national bird hunters association national birding hotline cooperative national birds of prey centre national birman fanciers