tephrite meaning in Hindi

Examples

1. Tephrite is foidal basalt with essential calic plagioclase but without essential olivine.
2. It occurs within a xenolith in a leucite tephrite.
3. At Vesuvius it occurs as alterations from gypsum within leucite tephrite and as fumarole deposits.
4. The field is dominated by trachyandesite and trachydacite, ranging from tephrite over trachyandesite to trachyte and rhyolite.
5. Its geology consists of the formation known as the Old Volcanic Complex formed between 3 to 2 million years ago, it consists of basanite, tephrite and phonolite rocks.
6. The Cenozoic platform ( which is also known as the " unconsolidated rock " level because the Cenozoic sedimentary rocks, due to their young age, have often not experienced intensive diagenesis and are therefore often not SiO 2-rich ) volcanic rocks of the transition level, the Cenozoic formations are mostly intermediate to very SiO 2-poor ( trachyte, basalt, phonolite, tephrite, nephelinite and basanite ).