0 a mineral in the form of crystals (= regular shapes) from which the chemical element zirconium is obtained -- 锆石
Zircon has a tremendous capacity to resist breakdown during erosion, weathering, melting, and metamorphism.
Zircon is found mainly in silica-rich rocks such as granite.
The relative amounts of oxygen isotopes in the zircons points to the presence of water.
53 isotope systematics and the provenance of detrital zircons of these different terrane assemblages, as they display distinct differences.
The absence of severe rounding in this group of detrital zircons suggests a proximal source area.
Tiny grains of zircon are found as an accessory mineral within plagioclase crystals in most zones of both layers.
The analysed zircons are 150-200 m in length and have only a few cracks and inclusions.
At the upper part of the section rounded and weakly zoned zircons (type 3) also appear.
