The quantitative petrography of volcanic rocks. The evolution of mafic magma during magma ascent (both from a purely petrological approach, as well as by theoretical modeling). Thermal and fluid ...

with geologists unable to determine with certainty whether they form solely in the mantle itself or are baked out of other minerals on the magma's ascent. New research has found evidence that the ...

Natural diamonds have various surface features produced as a result of partial dissolution during ascent in kimberlite magma or during residence in their mantle source. These surface features vary a ...