The origin and tectonic implication of Early–Middle Devonian magmatism in the northern margin YB (Yili Block) remain enigmatic are important for understanding Late Paleozoic evolution Junggar Ocean southern Kazakhstan Orocline. Here, we present systematic study whole-rock geochemical Sr–Nd isotope features as well U–Pb–Hf characteristics zircon crystals newly identified Early volcanic rocks fro...

Magmatic intrusions and volcanic eruptions are intimately related phenomena. Shallow magma intrusion builds subsurface reservoirs that are drained by volcanic eruptions. Thus, the long-held view is that intrusions must precede and feed eruptions. Here we show that explosive eruptions can also cause magma intrusion. We provide an account of a rapidly emplaced laccolith during the 2011 rhyolite e...

[1] We describe the Library of Experimental Phase Relations (LEPR), which is a new Web-based database of experiments pertaining to magmatic phase equilibria. The database includes information from experiments related to natural or near-natural magmatic silicate phase equilibria. At present, the database includes more than 6,600 experiments with liquids ranging in composition from komatiite to r...

Experiments were conducted to determine whether the rhyolites and basalts of the intraplate silicasaturated potassic suites could be genetically related through crystallization. Extreme crystallization (96–97%) of a high-MgO (10.62 wt%) olivine tholeiite from the Snake River Plain with an initial bulk water content of 0.4 wt% at a mid-crustal pressure of 4.3 kbar generated potassic rhyolitic li...