incompatible — [ ɛ̃kɔ̃patibl ] adj. • 1480; incompassible 1370; lat. médiév. incompatibilis, du lat. class. compati → compatible 1 ♦ Qui ne peut coexister, être associé, réuni avec (une autre chose). ⇒ contraire, inconciliable, opposé. « La plus haute culture… … Encyclopédie Universelle
Élément légal — Principe de légalité en droit pénal Ne doit pas être confondu avec Principe de légalité en droit administratif … Wikipédia en Français
Trace element — In analytical chemistry, a trace element is an element in a sample that has an average concentration of less than 100 parts per million measured in atomic count, or less than 100 micrograms per gram. In biochemistry, a trace element is a chemical … Wikipedia
Compatibility (geochemistry) — In geochemistry, compatibility is a measure of how readily a particular trace element substitutes for a major element within a mineral. Compatibility of an ion is controlled by two things: its valence and its ionic radius. Both must approximate… … Wikipedia
Skarn — is a metamorphic rock that is usually variably colored green or red, occasionally grey, black, brown or white. It usually forms by chemical metasomatism of rocks during metamorphism and in the contact zone of magmatic intrusions like granites… … Wikipedia
Komatiite — Komatiites are ultramafic mantle derived volcanic rocks. They have low SiO2, low K2O, low Al2O3, and high to extremely high MgO. They were named for their type locality along the Komati River in South Africa. True komatiites are very rare and… … Wikipedia
Boninite — is a mafic extrusive rock high in both magnesium and silica, formed in fore arc environments, typically during the early stages of subduction. The rock is named for its occurrence in the Izu Bonin arc south of Japan. It is characterized by… … Wikipedia
Europium anomaly — The Europium anomaly, in geochemistry, is the phenomenon whereby Europium (Eu) concentration is either depleted or enriched in a rock relative to the other rare earth elements (REEs). A Eu anomaly is said to be negative if Eu is depleted relative … Wikipedia
Uranium ore deposits — are ore deposits which constitute economically recoverable concentrations of uranium within the Earth s crust. DistributionThe distribution of uranium ore deposits is widespread, with sizeable deposits and mines in Australia (40% of EDR [cite… … Wikipedia
Syenite — is a coarse grained intrusive igneous rock of the same general composition as granite but with the quartz either absent or present in relatively small amounts ( … Wikipedia
