Aleksandr Marfin

Indiana University Bloomington | IUB · Department of Geological Sciences

The Siberian Traps Large Igneous Province (STLIP) is the most voluminous continental magmatic event of the Phanerozoic. The STLIP has been linked to the Permian–Triassic mass extinction, and has produced the world-class Norilsk and Talnakh Cu–Ni–PGE magmatic sulphide ore deposits. Despite the numerous studies that have characterized the petrogenesi...

We present results of apatite fission-track analysis of seven intrusions located within the Permian-Triassic Siberian Traps Large Igneous Province (LIP): (1) alkaline-ultramafic central type plutons of Odikhincha, Yessey and Magan, (2) intrusions of Norilsk-1 and Kontay, (3) Padunsky sill, and (4) Kotuy dike. Additionally, we also present a set of...

Mesoproterozoic period included several global tectonic events like break-up of Nuna and formation of Rodinia. However, although Siberia is a significant piece of both supercontinents, Mesoproterozoic time is marked by quiescence of magmatic and tectonic activity in it. We report here a mafic dyke (named Gornostakh dyke) in the southeastern Siberia...

The initial stage of Rodinia supercontinent break-up occurred at about 750 Ma. It preceded formation of the Irkutsk and Franklin Large Igneous Provinces (LIPs)at 712 ± 2 Ma to 739 ± 8 Ma. These LIPs were emplaced within the formerly connected Laurentian and Siberian cratons. The Kingash massif is located in the Precambrian Kan terrane in direct con...

The Norilsk-Talnakh ore district in the northwestern Siberian platform contains globally unique reserves of Cu-Ni-sulfides with Pt and, especially, Pd. The Oktyabrsk deposit, which is one of the largest in the district, is spatially and genetically associated with the Kharaelakh mafic-ultramafic intrusion and its exceptionally large metamorphic and...

We present the first systematic results of U-Pb LA-ICP-MS dating of detrital zircons from 12 samples representing different stratigraphic levels of 5 sections of the Permian-Triassic rocks, located within the eastern part of the Moscow basin (syneclise) – Zhukov ravine, Astashikha, Nedubrovo, Balebikha and Klykovo. It is shown that the accumulation...

Приведены первые систематические результаты U-Pb LA-ICP-MS датирования зерен обломочного циркона из 12 проб, представляющих разные стратиграфические уровни пяти разрезов пород пограничного пермско-триасового возраста, расположенных в пределах восточного борта Московской синеклизы, – Жуков овраг, Асташиха, Недуброво, Балебиха и Клыково. Показано, чт...

In this study, the suspension-assisted total-reflection X-ray fluorescence analysis of ores was improved using the wet grinding procedure to produce ultra-fine suspended powder mixed with internal standard solution in aqueous media. The advantages of the proposed technique were demonstrated by the example of the determination of S, Fe, Ni, and Cu i...

The Udzha paleorift is located between the Anabar and Olenek rivers and is a key structure indicative of the breakup of the Nuna supercontinent. However, the age of initiation and duration of paleorift activity is not defined nowadays. Here we present new U-Pb data for detrital zircons from two terrigenous and volcanic-sedimentary successions of th...

Charoitite is a unique rock in the alkaline-carbonatite Murun Complex, Eastern Siberia, Russia with an occurrence of many rare minerals. Here we report a comprehensive summary on mineralogy, major and trace element characteristics of the Ca-(K)-(Na) silicate minerals from charoitites, including charoite, tinaksite, tokkoite, pectolite, fedorite, mi...

The paper considers the Pd/Pt ratio in the ores of the Norilsk-1 and Talnakh deposits associated with the Permian-Triassic intrusions of the Norilsk type in comparison with that in the lavas of the same age in the Norilsk region. The Pd/Pt mean ratio is 1 in lavas and 2–4 times higher than that in ores and barren horizons of the Norilsk-1 and Talna...

The elemental analysis of apatite minerals is an important study that is utilized in several applications in geology, biology, medicine, agriculture, technology, and environmental remediation. Laser ablation inductively coupled mass spectrometry (LA-ICP-MS) is a routine method for the elemental analysis of apatite microcrystals in geological applic...

For the last two decades, the end of the voluminous phase of eruptions of the Siberian Traps large igneous province has been constrained by a U-Pb date of discordant baddeleyite collected from the Guli carbonatite intrusion with the assumption that the discordance resulted from unsupported 207Pb. In this study we have re-analysed baddeleyite from t...

Mesoproterozoic period included several global tectonic events like break-up of Nuna and formation of Rodinia. However, although Siberia is a significant piece of both supercontinents, Mesoproterozoic time is marked by quiescence of magmatic and tectonic activity in it. We report here a mafic dyke (named Gornostakh dyke) in the southeastern Siberia...

The crystal-chemical, vibrational, and optical properties of microporous aluminosilicate cancrinite have been investigated by combining electron probe microanalysis, single-crystal X-ray diffraction, infrared (IR) absorption, Raman, UV-Visible absorption, and electron spin resonance spectroscopy. The behaviour of the peaks in the IR spectra was als...

The Oktyabrsk PGE-Cu-Ni deposit is located in the northwest of the Siberian platform and is the largest deposit in the Norilsk-Talnakh ore district. The ore types in the Oktyabrsk deposit comprise disseminated base-metal sulfides (BMSs) in picritic and taxitic gabbrodolerites of the Kharaelakh intrusion, veinlet-disseminated BMSs in Devonian sedime...

The Oktyabrsk PGE-Cu-Ni deposit is one of the largest resources in the Norilsk–Talnakh ore district, Russia, and it is viewed as an ore giant on a global scale. It contains three types of ores: massive, disseminated and veinlet-disseminated. The two former ore types were formed by a liquation process, whereas the latter was associated with fluid-in...

The Nizhne-Derbinsk mafic-ultramafic complex is located between the Central Asian Orogenic Belt and the Siberian Craton and, is associated with the Ballyk fault. The largest, spatially related to each other, plutons in the central part of the complex are the Burlakski and Nizhne-Derbinsk. Rocks in the main units of these plutons are divided into th...

A significant amount of genetic information on the evolution of the granitic-pegmatite system was obtained by studying quartz. Modern ideas about the quartz's typochemysm are determined by the structural features of the mineral, as well as by the chemical elements that make up the solid and gas-liquid inclusions. The object of the research was quar...

The article presents the investigations of kidney stones from natives of Tomsk region (Western Siberia, Russia). The complexity of their internal structure, the multicomponent nature and the uneven distribution of mineral parts require special methods of investigation. At first, was used traditional mineralogical methods: description of the externa...

X-ray induced luminescence (XRL) spectra and thermostimulated luminescence (TSL) curves for natural quartz from a number of main quartz occurrences of Ural have been obtained. They are represented as a number of radiation bands with peaks related to different kinds of luminescence centers, such as admixtures of Al, Ge, Na, Li, or intrinsic defects...

X-ray induced luminescence (XRL) spectra and thermostimulated luminescence (TSL) curves for natural quartz from a number of main quartz occurrences of Ural have been obtained. They are represented as a number of radiation bands with peaks related to different kinds of luminescence centers, such as admixtures of Al, Ge, Na, Li, or intrinsic defects...

We have analyzed the data on concentration of geochemical elements within the 3- DV regional geochemical field. We have determined the fractal dimension index of spider diagrams and found the fractal nature of the distribution of chemical elements along the profile. We have compared these data with the results of the correlation analysis and hierar...