Hotter mantles, such as those beneath oceans, prevent sampling strongly silica-undersaturated, carbonated melts such as kimberlites as shallower basaltic melt generation dominates. Thick thermal boundary layers, such as those in cratonic regions, on the other hand allow production of kimberlitic to ...
The magma chamber, just below a volcanic pipe, typically forms at the earth's crust. It is fed by the molten material just below it from the upper and lower mantles. Several events can cause an eruption like an earthquake, gaseous pressure in the magma chamber, or an influx of magma fro...
The paper is “Ultrahigh-pressure disordered eight-coordinated phase of Mg2GeO4: Analogue for super-Earth mantles.” The lead author is Rajkrishna Dutta, a post-doctoral fellow at Carnegie’s Earth and Planets Laboratory. The paper is published in the Proceedings of the National Academy of Scien...
内容提示: Chapter 4What we Learn from the Solar SystemAs we have mentioned earlier (Sect. 1.4.3), it has been the study of the Solar Systemthat has led us to favour the model of star formation that envisages the collapse ofan interstellar nebula. In this chapter we intend to examine in...