This is a simple essay explaining the Bowen Reaction Series.

Works Cited: Chernicoff & Fox Essentials of Geology, Ghaly canonical Geosciences Illustrations For all Levels The Bowen Reaction Series In 1922, Norman Levi Bowen and his colleagues determined the sequence in which silicate minerals discharge as magma cools (Chernicoff 56). This work made it possible to summarise a complex confine of geochemical relationships, called Bowens Reaction Series. This series shows that silicate mineralscancrystallize from mafic magmas in two ways, in a non incessant series or a unceasing series. Iron and magnesium enough silicates(ferromagnesian) crystallize one after other(a) in a particular(prenominal) sequence (Chernicoff 56). Because each successive summon of this mineral crystallise differs from the one that came before it, this progression is called the discontinuous series. In the discontinuous series the first ferromagnesian mineral to crystallize is olivine. Olivine has a emit silica content and a relatively simple organise of autarkic tetrahedra (Chernicoff 56). At the same temperatures as the olivine and the pyroxenes crystallize, so does the calcium feldspar. As these crystals continue to interact with the be liquid, sodiumions from the liquid magma replace the calcium ions in the calcium feldspar (Chernicoff 57). in conclusion the crystals are completely converted to sodium feldspar. Because one type of ion is be replaced by a similar ion; the inner(a) structure does not change. This progression is called the continuous series (Chernicoff 57).

After both minerals from the discontinuous series and the continuous series have crystallized completely from an ab initio mafic magma, little than 10% of the original liquid remains (Chernicoff 57). Depending on its composition, this liquid whitethorn flat contain higher concentrations of silica, atomic number 19, and aluminum. In such a case, potassium feldspar, potassium-aluminum mica, and quartz are the move minerals to crystallize (Cherincoff 57). Higher Temperature: Basic Magma Olivine Anorthite Bytownite Pyroxene Labradorite Amphiboles Andesine Oligoclase Biotite Albite Orthoclase Muscovite Quartz... If you want to render a well(p) essay, order it on our website: Orderessay

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