Monzogranite - Wikipedia
Monzogranite is a plutonic rock that occupies the middle of the QAPF diagram, consisting of between 20-60% quartz, and of the remainder, between 35-65% alkali feldspar and the remainder plagioclase. Examples. Wave Rock, an outcrop of monzogranite in Western Australia. Pilgangoora belt, Pilbara craton, Western Australia.
二长花岗岩 - 维基百科，自由的百科全书
2023年1月31日 · 二长花岗岩（英语： Monzogranite ） 是黑云母 花岗岩，被认为是岩浆 分离结晶的最终产物。 二长花岗岩的特征是长英质（SiO2 > 73%，FeO + MgO + TiO2 < 2.4），弱过铝质（Al2O3/（CaO + Na2O + K2O）= 0.98–1.11），并含有 钛铁矿 、 榍石 、 磷灰石 和 锆石 作为 …
Monzogranite: Mineral information, data and localities. - mindat.org
A granitoid (a coarse grained igneous rock composed mostly of quartz, Kspar (alkali-feldspar) and plagioclase), with subequal amounts of plagioclase and ...
Geology and genesis of auriferous porphyritic monzogranite and …
2022年3月1日 · The porphyritic monzogranite shows varying degree of hydrothermal alterations including potassic alteration, phyllic alteration, silicification, sericitization and chloritization, resulting in the high loss on ignition values (LOI = 2.88–6.64 wt%) and linear relationships between LOI and large ion lithophile elements (LILEs) which suggest ...
Monzogranite – Knowledge and References – Taylor & Francis
Monzogranite is a type of igneous rock that is formed through a major phase of igneous activity. It is typically grey in color, with a medium-fine granular texture and a massive structure. The composition of monzogranite is primarily made up of plagioclase (45%), potash feldspar (35%), and quartz (20%).
Paleoproterozoic A1- and A2-type coexisting ... - ScienceDirect
2022年2月1日 · The monzogranite was mainly originated from ancient crust with minor mantle component. •. The monzogranite belongs to coexistence of A1 and A2-type granitoid and show affinities to the continental arc magmatism. •. The monzogranite may represent the transition from compressive to rifting tectonic regime after plate collision. Abstract.
Rare-metal mineralization potential and petrogenesis of Early ...
2019年5月22日 · A large number of typical hydrothermal rare-metal minerals are identified in the monzogranite, such as W-bearing rutile, niobian rutile, and columbite-group minerals as well as ferberite.
Geologic Formations - Joshua Tree National Park (U.S. National …
2017年10月2日 · These plutonic intrusions are a granitic rock called monzogranite. The monzogranite developed a system of rectangular joints. One set, oriented roughly horizontally, resulted from the removal—by erosion—of the miles of …
二长岩 - 百度百科
二长岩（monzonite） 是正长岩向闪长岩过渡或向辉长岩过渡的种属。. 斜长石和钾长石含量接近相等，二者均大于30%，具典型二长结构。. 与正长岩相比，斜长石偏基性，多为中长石至拉长石。. 据暗色矿物种类，细分为 黑云母二长岩 、角闪石二长岩和辉石二长岩 ...
Medium-Grained Monzogranite-Syenogranites | SpringerLink
2022年8月24日 · The medium-grained monzogranite-syenogranites are the subordinate granitoids in the K-rich granitoid belt and display intrusive relationships with the porphyritic MQGM gneisses. In this chapter, comprehensive geological, petrological, whole-rock geochemical, and zircon U–Pb-Lu–Hf isotopic investigations have been conducted on these medium ...