Download or read book Chemistry of the Subalkalic Silicic Obsidians written by Ray Macdonald and published by . This book was released on 1992 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compilation of analyses of subalkalic silic obsidians, assessment of compositional variations in terms of tectonic setting and genetic mechanisms, and systematic discussion of element distribution in these rocks.