We present in situ major element, trace and Sr–Nd isotope data of apatite from an alkaline–carbonatite intrusion the South Qinling Belt (SQB) to investigate their magma evolution mantle sources. The Shaxiongdong (SXD) complex consists predominantly early Paleozoic hornblendite, nepheline syenite, subordinate Triassic carbonatite. Apatites all lithologies are euhedral subhedral belong fluorapati...

Abstract The objective of this work was to identify microbial communities associated with the surfaces alkali feldspars and determine whether these microbes might be involved in weathering rocks for agronomic benefit. Samples were taken from profiles soils developed on a syenite, considered as raw material agromineral production, located municipality Triunfo, state Pernambuco, Brazil. Molecular...

The pre-Neogene basement of the Slavonia-Srijem Depression (eastern Croatia) is composed various types igneous, metamorphic and sedimentary rocks. Here we present petrography geochemistry a heterogenous group represented by two alkali granite, syenite, rhyolite orthogneiss. granite type 1 has an A-type geochemical affinity: ferroan character, high content, concentration rare earth elements (REE...

Th-rich (up to 18.4 wt.% ThO2) loparite occurs as an accessory phase in foyaite pegmatites at Mr. Eveslogchorr, Khibina complex, Russia. It is associated with aegirine, astrophyllite, eudialyte, lorenzenite, lamprophyllite, magnesio-arfvedsonite and gerasimovskite. Loparite crystals are zoned from niobian loparite (core) to niobian thorian and thorian niobian loparite (rim). Th-enrichment is ac...