Affiliation:
1. St. Petersburg Mining University
2. Institute of Geology and Geochemistry UB RAS
3. St. Petersburg State University
Abstract
Ontogenic analysis of magnetite-ilmenite-spinel intergrowths of ore-bearing amphibole gabbro of the Serebryansky Kamen intrusion (Central Urals) and their relationships with rock-forming silicates, apatite and Cu sulfdes allowed us to reveal a number of features indicating their nearly synchronous formation. Morphological features of minerals of ore-bearing amphibole gabbro suggest their possible crystallization from silicate, iron oxide and sulfde melts under close-to-eutectic conditions. It is found that regularly oriented ilmenite lamellas in magnetite, which are typically interpreted as exsolution structures, often intersect the boundaries of variously oriented magnetite grains, which is inconsistent with traditional interpretation of their origin. The ontogenetic features of minerals should be taken into account in petrological reconstructions.
Publisher
South Urals Federal Research Center for Mineralogy and Geoecology of the Urals Branch of the RAS
Subject
General Psychology,Arts and Humanities (miscellaneous),Education,General Business, Management and Accounting,Education,Psychiatry and Mental health,Health Professions (miscellaneous),Law,Cognitive Neuroscience,Developmental and Educational Psychology,Education,Experimental and Cognitive Psychology,Political Science and International Relations,History,Management Science and Operations Research,Artificial Intelligence,General Engineering,Statistics and Probability,Electrical and Electronic Engineering,Artificial Intelligence,Industrial and Manufacturing Engineering,Mechanical Engineering,Control and Systems Engineering,Software,Artificial Intelligence,Computer Networks and Communications,Hardware and Architecture,Information Systems,Software
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