Unzen, Japan in 1991 to 1995: modeling with the chemical composition of volcanic gas . Journal of Volcanology and Geothermal Research 2008 ; 175 : 120 - 132 .Ohba, T., J. Hirabayashi, K. Nogami, M. Kusakabe, and M. Yoshida (2008), Magma degassing process during the eruption of Mt....
When an atom reacts, it can gain or lose electrons, or it can share electrons with a neighboring atom to form a chemical bond. The ease with which an atom can gain, lose or share electrons determines its reactivity. Atomic Structure Atoms consist of three types of subatomic particle: proto...
The selected model determines further considerations about magma genesis. This work was supported by MNiSW grants NN307040736 and NN307039740. References: Ladenberger A., Michalik M., Tomek C. & Peate D.W., (2006): Alkaine magmatism in SW Poland - an example of asthenosphere-lithosphere ...
In addition to factors such as the tectonic setting, magma composition and the bulk gas emission rate of an eruption16, emission rates of volcanogenic metal pollutants depend strongly on element-specific volatility16,17,18 which is a measure of the extent to which an element partitions from the...
The last giant impact on Earth is thought to have formed the Moon1. The timing of this event can be determined by dating the different rocks assumed to have crystallized from the lunar magma ocean (LMO). This has led to a wide range of estimates for the
Trace element modelling of pelite-derived granites The presence or absence of a vapour phase during incongruent-melt reactions of muscovite and biotite together with the composition of the protolith determines the trace-element characteristics of the resulting melt, provided that equilib... Nigel ...
Thus, the physical appearance and chemical composition indicate the zircons are of igneous origin [65]. Out of 350 analyzed zircon grains, 310 yielded acceptable ages. The U-Pb ages predominantly peak at 634 Ma, 525 Ma, 290 Ma and ~248 Ma, with a subordinate number of grains at 1075 Ma...
From the perspective of the aquifer system, the surrounding bedrock in mountainous areas in the basin is composed of metamorphic rocks and carbonate rocks. Among these rock formations, numerous springs emerge, transferring the chemical composition of rocks to surface water. In the Kunlun Mountain area...
Mare and highland rocks differ in both appearance and chemical content. For example, mare rocks are richer in iron and poorer in aluminum than highland rocks. The maria consist largely of basalt, i.e., igneous rock formed from magma. In the highlands the majority of the rocks are breccias...
The Rondônia Tin Province is an example of rapakivi granites related to tin ore deposits. It has been studied for at least 50 years [16,17,18,19,20,21]; however, there are still gaps to be filled, such as the source of the magma that resulted in the formation of these rocks and...