Titlebook: Origin of Potassium-rich Silica-deficient Igneous Rocks; Alok Krishna Gupta Book 2015 Springer India 2015 Igneous Rocks.K-rich Feldspathoi

租约

粗鲁性质

兽皮

Different Localities of Potassium-Rich Silica-Undersaturated Igneous Rocks and Their Silica-Rich Vaed localities all over the world (Turner and Verhoogen 1960). During the last three decades however, a large number of localities have been described, where these rocks are reported. They are therefore, much more abundant and widespread than previously thought of (Gupta and Fyfe 2003).

光亮

Chemical and Physical Constraints for Crystallization of Feldspathoids and Melilite in Potassium-Ri close to 56 wt%, it may appear but then the SiO./K.O ratio should be below 10; in that case the K.O content of the rock is close to 6 wt%. In silica-deficient rocks (SiO. < 45 wt%), leucite may appear even though the K.O content is slightly higher than 1 wt%. The K.O/Na.O ratio is always greater th

Macronutrients