Geology, Petrogeochemistry of Akhmerovsky Granite Massif and Ore Mineralization in Its Frame

Abstract

Аннотация. В статье рассмотрены геологическое строение, состав и петрогеохимические особенности Ахмеровского гранитного массива, являющегося составной и центральной частью белорецкого зонального метаморфического комплекса. Показано, что массив сложен преимущественно гранитами и диоритами, которые по минеральному составу отвечают стандартным гранитам. Исходными породами для белорецкого комплекса являются песчано-глинистые и карбонатные отложения с мощными прослоями углеродистых образований. На характеристических петрогеохимических диаграммах граниты Ахмеровского массива образуют компактные поля в области внутриплитных гранитоидов. Они комагматичны машакским вулканитам и по своему палеотектоническому режиму соответствуют © Электронный научный журнал «Нефтегазовое дело». 2016. №1 http://ogbus.ru It is studied the carbonaceous deposits within the beloretsk metamorphic complex on the gold. It is shown that the largest manifestations of gold are confined to tectonically intensively deformed, silicified and sulfidation rocks of black-shale formation, located in an external high-temperature zone of the greenschist facies of metamorphism, which is an important exploration indicator for carrying out further work on the periphery of the beloretsk metamorphic dome. In such geological setting was revealed the gold manifestation of Otnurok, where was tested the carbonaceous formations which allowed us to identify a member of ore-bearing rocks. This zone of gold-bearing mineralization was traced in a north-easterly direction for several kilometres along strike, but not delineated, that allow us to continue research work in this direction.

New data on geology of the Southern Urals: a concise summary of research after the period of EUROPROBE activity

“…Simultaneously, a special book concerning the characteristics of the stratigraphy of the Mashak Formation in the stratotype and petrology of its volcanics was published by Ardislamov et al (2013). The geology and petro-geochemistry of carbonaceous sediments of the Southern Urals were characterized in the monograph of Snachev et al (2012). Devonian and Carboniferous volcanic rocks of the Magnitogorsk zone, the variable geodynamic conditions of their origin and their position in the relic island arc of Paleozoic time were described in two comprehensive papers by Kosarev et al (2005Kosarev et al ( , 2006.…”