geochemical evolution

geochemical evolution

[¦jē·ō¦kem·ə·kəl ‚ev·ə′lü·shən]
(geochemistry)
A change in any constituent of a rock beyond that amount present in the parent rock.
A change in chemical composition of a major segment of the earth during geologic time, as the oceans.
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References in periodicals archive ?
and Mayayo, M.J.: 2017, Origin and geochemical evolution from ferrallitized clays to karst bauxite: An example from the Lower Cretaceous of NE Spain.
To determine the origin and geochemical evolution of CP brine, an evaluation of Na(deficit) and [Ca.sub.(excess)] was applied to explain the initial composition and nature of fluid-rock interaction (Figure 5).
The distinct geochemical characteristics of the clusters indicate that they have undergone geochemical evolution of different types and intensities.
The concept of residual alkalinity and the geochemical evolution of the processes Application on the salty grounds of the lake Fetzara (Algerian Northeast), Synthesis, 23: 92.
Mineralogical and Geochemical Evolution. The studied siliceous rocks underwent mineralogical adjustments with maintenance of geochemical stability.
9:00 GEOCHEMICAL EVOLUTION OF GROUND AND SURFACE WATER THROUGH A WETLAND SYSTEM **, Jenna B.
Geologists and other earth scientists from Europe, North America, and Australia discuss such topics as the geochemistry and secular geochemical evolution of the Earth's mantle and lower crust, geochemistry of the oceanic crust, some perspectives on stable isotope geochemistry, the geochemistry of the geologic sequestration of carbon dioxide, urban geochemistry, and archaeological and anthropological applications of isotopic and elemental geochemistry.
These papers concentrate on the geological activity in this ridge through North, Central and South America and how it contributes to magmatism, geochemical evolution, terrane accretion and flat subduction.
Stern, R.A., Percival, J.A., and Mortensen, J.K., 1994, Geochemical evolution of the Minto block: a 2.7 Ga continental magmatic arc built on the Superior proto-craton: Precambrian Research, v.
Factors that control the geochemical evolution of hydrothermal systems of alkaline water in granites in Central Pyrenees (Spain)
Hanili, N.: 2013, Geological and geochemical evolution of the Bolkardagi bauxite deposits, Karaman, Turkey: transformation from shale to bauxite.
Often Piper diagrams are mainly used for determining the water type, hydrochemical facieses and geochemical evolution paths.