From: owner-ammf-digest@smoe.org (alt.music.moxy-fruvous digest) To: ammf-digest@smoe.org Subject: alt.music.moxy-fruvous digest V14 #3176 Reply-To: ammf@fruvous.com Sender: owner-ammf-digest@smoe.org Errors-To: owner-ammf-digest@smoe.org Precedence: bulk alt.music.moxy-fruvous digest Tuesday, February 6 2018 Volume 14 : Number 3176 Today's Subjects: ----------------- Fed Up With Fake Dating? - Try this. You Will Be Surprised! ["VictoriaHea] ---------------------------------------------------------------------- Date: Tue, 6 Feb 2018 04:01:40 -0500 From: "VictoriaHearts" Subject: Fed Up With Fake Dating? - Try this. You Will Be Surprised! Fed Up With Fake Dating? - Try this. You Will Be Surprised! http://piloet.bid/uCwKqgsIpg-7nJc1Tz7Kekt_9vQ44y6g1U_dtRJKfhA4xbLV http://piloet.bid/WE9cx5up8xQBB2YvObTTqnoYkzE9AUTvkZLvMB1_P7XmrOKU Many researchers have argued that anorthosites are the products of basaltic magma, and that mechanical removal of mafic minerals has occurred. Since the mafic minerals are not found with the anorthosites, these minerals must have been left at either a deeper level or the base of the crust. A typical theory is as follows: partial melting of the mantle generates a basaltic magma, which does not immediately ascend into the crust. Instead, the basaltic magma forms a large magma chamber at the base of the crust and fractionates large amounts of mafic minerals, which sink to the bottom of the chamber. The co-crystallizing plagioclase crystals float, and eventually are emplaced into the crust as anorthosite plutons. Most of the sinking mafic minerals form ultramafic cumulates which stay at the base of the crust.This theory has many appealing features, of which one is the capacity to explain the chemical composition of high-alumina orthopyroxene megacrysts (HAOM). This i
s detailed below in the section devoted to the HAOM. However, on its own, this hypothesis cannot coherently explain the origins of anorthosites, because it does not fit with, among other things, some important isotopic measurements made on anorthositic rocks in the Nain Plutonic Suite. The Nd and Sr isotopic data show the magma which produced the anorthosites cannot have been derived only from the mantle. Instead, the magma that gave rise to the Nain Plutonic Suite anorthosites must have had a significant crustal component. This discovery led to a slightly more complicated version of the previous hypothesis: Large amounts of basaltic magma form a magma chamber at the base of the crust, and, while crystallizing, assimilating large amounts of crust. ------------------------------ End of alt.music.moxy-fruvous digest V14 #3176 **********************************************