Is felsic magma silica rich? Magmas rich in felsic components such as quartz and orthoclase feldspar are higher in silica than those rich in igneous rocks. Magmas with a high silica content are ...

News & Views Published: 18 September 2017 Geochemistry Oxygenation by a changing crust J. Elis Hoffmann Nature Geoscience 10, 713–714 (2017) Cite this article ...