Elena Belousova

• PhD
• Senior Lecturer at Macquarie University

Understanding the main events of platinum-group element (PGE) ore formation is impossible without analysis of the sources and behavior of major ore-forming components, namely, platinum, osmium, sulfur, and copper, which are important indicators of magmatic and hydrothermal processes. In contrast to the Re–Os isotope system, the radiogenic Pt–Os iso...

In order to provide further insights into the origin of Ru-Os-Ir alloys, this study presents new highly siderophile element (HSE: Re, Os, Ir, Ru, Pt, and Pd) abundance and 187Re-187Os and 190Pt-186Os isotope data for detrital grains of native Ru-Os-Ir alloys in placer deposits of the Kunar and Unga Rivers, which display a close spatial association...

Zircon lutetium-hafnium (Lu-Hf) isotope maps are used to characterize lithospheric architecture through time, to help understand crustal evolution and mineral system distributions, and play an increasingly important role in mineral exploration (Mole et al., 2014, 2019, 2021; Hou et al., 2015; Wang et al., 2016; Lu et al., 2022b). Here we present a...

–We present data on the geochemical and Sr–Nd isotope compositions of rocks and on the Lu–Hf isotope composition of magmatic and xenogenic zircons from granitoids and gabbroids of the late Neoproterozoic island arc structure of the Lake Zone. Plagiogranitoids, gabbroids, and quartz diorites (559–542 Ma) formed at the late Neoproterozoic subduction...

The Bashkir anticlinorium is an extensive outcrop of Precambrian rocks within the Southern Urals, located near the south-eastern edge of the East European Platform (EEP). The Bashkir anticlinorium is subdivided by the Zyuratkul fault into two parts: the Bashkir (western part) and Uraltau (eastern part) Uplifts. The Late Precambrian strata of the Ba...

Time-constrained isotope maps are used to characterize the evolution of lithospheric architecture as well as understand crustal development and mineralization. Such isotope maps play an increasingly important role in exploration targeting, and statistically significant relationships between different types of mineralization and isotopic signatures...

An intensive study of the geochemical characteristics (including the volatile elements Cl and S) of apatite associated with porphyry deposits was undertaken to address the debate about the crust-or mantle-derivation of their copper and gold, and to understand better, the controls on the transport of metals in magmatic fluids in post-subduction sett...

В работе приводятся новые данные минералогического и изотопно-геохимического исследований мегакристов цирконов (n = 48) из аллювия ручья Холомолох (приток реки Эбелях). С использова-нием геохимических классификационных схем было установлено наличие цирконов кимберлито-вого и карбонатитового генезиса. U-Pb-датирование цирконов показало наличие двух...

New mineralogical and isotope-geochemical data for zircon megacrysts (n = 48) from alluvium of Kholomolokh Creek (a tributary of the Ebelakh River) are reported. Using the geochemical classification schemes, the presence of zircons of kimberlitic and carbonatitic genesis was shown. The U-Pb dating of zir-cons revealed two major age populations: the...

We present results of geochemical and Sr-Nd isotope studies of rocks and of local dating and determination of the Lu-Hf isotope composition of zircons from late Vendian-early Cambrian and Cambrian-Ordovician intrusive associations (granitoids and gabbroids) of the Kaa-Khem and East Tannu-Ola batholiths in Eastern Tuva. The wide ranges of the εNd va...

This study presents the first highly siderophile element (HSE: Re, Os, Ir, Ru, Rh, Pt, Pd, Au) abundance and Re-Os isotopic data for primary Pt-Fe minerals and Os-rich alloys from the Kondyor zoned-type ultramafic massif located in the southeastern part of the Siberian Craton, Russia. The Kondyor massif is composed of three zones: (A) the oldest du...

We present results of geochemical and isotope (Rb-Sr, Sm-Nd, and Lu-Hf) studies of the early Paleozoic plagiogranitoid associations in the south of the Lake Zone in Western Mongolia, which formed at the island-arc and accretion-collision stages of the regional evolution. According to the petrogeochemical composition, the early Paleozoic plagiograni...

This study presents the first results of oxygen isotope analyses (δ18O) collected on zircons from the Talnakh economic intrusion within the Noril’sk province. Zircons from gabbro-diorite, gabbroic rocks of the layered series and plagioclase-bearing wehrlite have similar mantle-like mean δ18O values (5.39 ± 0.48‰; 5.63 ± 0.48‰ and of 5.28 ± 0.34‰, r...

Впервые охарактеризованы особенности изотопного состава кислорода (δ18O) цирконов Талнахского промышленно-рудоносного интрузива Норильской провинции. Цирконы из габбро-диоритов, габброидов расслоенной серии и плагиоверлитов характеризуются близкими средними значениями δ18O (5.39±0.48‰, 5.63±0.48‰ и 5.28±0.34‰, соответственно), которые отличаются от...

We consider the geologic structure, composition, and age of early Paleozoic intrusive rock associations of the Tugrug, Udzur-Hunga, Hatan-Hunga, Mandalt, Bayasgalant, and Dut Uul plutons. The plutons are located among late Neoproterozoic-early Cam-brian volcanic and volcanosedimentary strata in the southern part of the island-arc system of the Lake...

U–Pb dating, Hf-isotope, and trace-element studies on two detrital zircon samples from sandstone interlayers in the Upper Jurassic conglomerates of the Southern coast of the Mountainous Crimea provide new information on the primary crystalline complexes from which those conglomerates were sourced. The U–Pb age spectra of studied zircons suggest tha...

New U-Pb (SIMS and LA-ICP-MS) geochronological data for rocks of Egdygkych complex of hypabyssal intrusions, Nichan and Vukney plutons, and felsic volcanic rocks and tuffs from host strata of Oloy volcanic belt of Alasey-Oloy fold system are obtained. Concordant ages of Egdygkych complex rocks correspond to Early Cretaceous (Berriasian-Valanginian)...

The U–Pb dating and Hf isotope systematics of detrital zircons from a sandstone interbed in the section of the upper conglomerate sequence of the Mt. South Demerdzhi were carried out. The dominant populations of detrital zircons in the studied sample characterize episodes of magmatic activity within the source of the Upper Jurassic conglomerates. M...

Проведено изучение детритовых цирконов в терригенных толщах ордовика различных зон Южного Урала. Возраст обломочных цирконов Западно-Уральской и Зауральской мегазонах, Таганайско-Белорецкой зоне, а также в Кракинских аллохтонах, охватывает интервал от позднего архея до конца венда-начала кембрия; наиболее широко распространены цирконы раннедокембри...

The Egdygkych hypabyssal rocks of the Nichan and Vuknei massifs, as well as the host volcanites and tuffs of the Oloi volcanic belt of the Alazeya–Oloi folded system have been dated by U–Pb (SIMS and LA–ICP–MS). The obtained ages of the Egdygkych complex correspond to the Early Cretaceous (Berriasian–Valanginian), while those of their host rocks ra...

This study evaluates for the first time Hf-isotope characteristics of zircon from dunite of the Kondyor massif, which is closely related to an economic platinum placer deposit. The significant range in εHf(t) values (from –8.4 ± 0.8 to 10.5 ± 1.3) in Mesozoic zircons indicates the interaction of a “juvenile” mantle source with distinct magma source...

The first isotope-geochemical and geochemical characteristics (the “TerraneChrone” method) of previously dated (U-Pb, LA-ICP-MS) detrital zircons from Ordovician sandstones (borehole Ordovician-2, Sol-Iletsk block) are presented. A comparative analysis of the characteristics of the studied zircons and the corresponding characteristics of the comple...

Detrital zircons of Ordovician terrigenous sequences are studied in various Southern Uralian tectonic units. The age of detrital zircons of the West Uralian and Transuralian megazones, Taganai–Beloretsk Zone, and Kraka allochthons spans from the Late Archean to the end of the Vendian– beginning of the Cambrian; Early Precambrian and Early–Middle Ri...

The primary isotope–geochemical and geochemical characteristics (by the TerraneChrone® technique) are presented for detrital zircons dated previously (U/Pb, LA–ICP–MS dating) from Ordovician sandstones (the Ordovician-2 borehole of the Sol-Iletsk block). The characteristics of the treated zircons were compared to the corresponding parameters of the...

Впервые охарактеризованы особенности начального изотопного состава гафния цирконов дунитов Кондёрского массива, с которым связаны промышленные россыпные месторождения платины. Широкие вариации эпсилон Hf(t) (от -8.4 ± 0.8 до 10.5 ± 1.3) в мезозойских цирконах свидетельствуют о взаимодействии “ювенильного” мантийного источника с производными других...

Results of the study of Sr–Nd–Pb–Hf isotopic composition of Late Paleozoic granitoids of Central Chukotka are represented on the example of Kibera and Kuekvun plutons. The age of granitoids of these plutons and granites from pebbles in conglomerates in the base of overlying Lower Carboniferous deposits is 351–363 Ma (U–Pb zircon, TIMS, SIMS, LA–ICP...

The Yilgarn Craton of Western Australia represents one of the largest pieces of Precambrian crust on Earth, and a key repository of information on the Meso-Neoarchean period. Understanding the crustal, tectonic, thermal, and chemical evolution of the craton is critical in placing these events into an accurate geological context, as well as developi...

The results of Sr–Nd–Pb–Hf isotope analysis of Late Paleozoic granitoids of Central Chukotka, which are exemplified by the Kibera and Kuekvun plutons, are presented. The ages of these granitic plutons and of granite pebbles from conglomerates at the base of the overlying Lower Carboniferous strata are 351–363 Ma (U–Pb zircon, TIMS, SIMS, LA–ICP–MS)...

The structure, geochemistry, and U–Pb and Lu–Hf isotopic composition of zircon crystals from garnet granulite xenoliths of the lower crust in the Belomorian mobile belt have been studied. It has been established that Early Paleoproterozoic zircon, 2.47 Ga in age, is primary magmatic and formed during crystallization of mafic rocks in the lower crus...

V.R. Vetrin*,**, E.A. Belousova***. Lu-Hf ISOTOPIC COMPOSITION OF ZIRCON FROM SYENITES OF THE SAKHARJOK ALKALI MASSIF, KOLA PENINSULA *Kola Science Center, Russian Academy of Sciences, Apatity, Russia ** Institute of Mineralogy, Geochemistry, and Crystal Chemistry of Rare Elements, Moscow, Russia, e-mail: vetrin@geoksc.apatity.ru ***NSW 2109, Macqu...

This study presents new chemical and isotope data for Ru-Os sulfides and coexisting platinum-group minerals (PGMs) within primary assemblage derived from the Verkh-Neivinsky dunite-harzburgite massif. PGMs were studied using electron microprobe analysis, laser ablation and multiple collector-inductively coupled plasma-mass spectrometry. The obtaine...

The Sol-Iletsk arch is located at the south eastern edge of the East European platform (EEP), where EEP adjoins with the Southern Urals. The results of the integrated (U-Pb age, Lu-Hf isotopic system and trace-elements) study of detrital zircons (dZr) from the Ordovician sandstones (within Sol-Iletsk arch) reached by borehole Ordovician-2 are prese...

This work presents the data on the structure, geochronology, and formation settings of the Ordovician sedimentary and volcanogenic-sedimentary complexes of the Sterlitamak, Mariev, and Imanburluk structural and formational zones located in the western and northwestern frames of the Kokchetav massif (Northern Kazakhstan). In addition, the results of...

Рассмотрены данные о строении, возрасте и обстановках формирования ордовикских осадочных и вулканогенно-осадочных комплексов Стерлитамакской, Марьевской и Иманбурлукской структурно-формационных зон западного и северо-западного обрамления Кокчетавского массива Северного Казахстана. Приведены результаты детальных стратиграфических, геохимических и ге...

Xenocrystic zircons from Cretaceous pyroclastic vents on Mt. Carmel, N. Israel, document two major periods of earlier mafic magmatism: Permo-Triassic (285–220 Ma) and Jurassic (200–160 Ma). Related alluvial deposits also contain these zircon populations. However, most alluvial zircons are Cretaceous (118–80 Ma) or younger, derived from Miocene to P...

This investigation presents new data on the Hf-isotope systematics of baddeleyite and the Nd-isotope compositions of calcite carbonatites of the Guli massif, located within the Maimecha–Kotui province. The Hf–Nd isotope signatures of carbonatites (εHf ~ 10.4, εNd ~ 5.8) indicate that depleted mantle material was involved during magma generation. Th...

The TerraneChrone ® (LA-ICP-MS) technique has been applied to carry out an integrated study of detrital zircons in sandstones sampled from the basal horizons of the stratotypical Riphean sequence in the Southern Urals, specifically the Navysh and Chudin suites of the Ai Formation of the Burzyan Group in the Bashkir Uplift. The concentrations of tra...

This paper reports chemical, geochronological, and Hf-Nd-Sr isotopic-geochemical data on granite, leucogabbro, and microgabbro porphyrite vein bodies in the gabbro of the Volkovsky massif. It was proved that the vein granite and leucogabbro are genetically related to the leucogabbro-anorthosite-plagiogranite (anorthosite-granite) series of the Ural...

The first results of U-Pb isotopic dating (LA-ICP-MS) of detrital zircons from metasedimentary rocks of the pre-Devonian basement of the SW part of western Spitsbergen (from Upper Mezoproterozoic Gulliksenfellet quartzite) showed ages ranging from 1700 ± 25 to 2948 ± 27 Ma.

Chromitites enclosed within metasomatised Finero phlogopite peridotite (FPP) contain accessory platinum-group minerals, base metal (BM) sulfides, baddeleyite, zircon, zirconolite, uraninite and thorianite. To provide new insights into mantle-crustal interaction in the Finero lithosphere this study evaluates (1) the mineral chemistry and Os-isotope...

Structure, geochemistry, U-Pb age and Lu-Hf isotopic composition of zircon crystals from xenoliths of garnet granulites of the lower crust of the Belomorian mobile belt have been studied. There was revealed the primary magmatic protolithic origin of Early Palaeoproterozoic zircon (2.47 billion years), formed during crystallization of mafic rocks in...

According to present views, the crustal terranes of the Anabar province of the Siberian craton were initially independent blocks, separated from the convecting mantle at 3.1 (Daldyn terrane), 2.9 (Magan terrane) and 2.5 Ga (Markha terrane) (Rosen, 2003, 2004; Rosen et al., 1994, 2005, 2009). Previous studies of zircons in a suite of crustal xenolit...

The concentrations of 26 trace elements have been determined by laser ablation ICP-MS in zircons from four samples of basic rocks of the Korosten anorthosite-mangerite-charnockite-granite plutonic complex, the Ukrainian Shield. Zircons from the Fedorivka and Torchyn gabbroic intrusions and Volynsky anorthosite massif have distinctive abundances of...

The results of U/Pb dating of detrital zircons from sandstones of the Zigalga Formation, which is the base level of the Middle Yurmatu Group of the Bashkir uplift, southwestern Urals, are presented. The U/Pb ages of detrital zircons from sandstones of the Lower, Middle, and Upper Riphean are compared.

The paper reports the results of petrogeochemical and isotope (Sr-Nd-Pb-Hf) study of the Late Paleozoic granitoids of the Anyui–Chukotka fold system by the example of the Kibera and Kuekvun massifs. The age of the granitoids from these massifs and granite pebble from conglomerates at the base of the overlying Lower Carboniferous rocks is within 351...

We have recovered occassional zircon grains from massive chromitite bodies hosted in the mantle section of the SSZ-type Mayarí-Baracoa Ophiolitic Belt (MBOB, eastern Cuba). LA-ICPMS and SHRIMP U-Pb ages yield a significant range in age, scattering from Cretaceous (99 ± 21 Ma) to Neo-Archean (2750 ± 60 Ma) and εHf(t) ranging from −26 to +13.5. Most...

The compositional and isotope–geochemical features of zircons from wehrlite of the Feklistov massif, which formed platinum coastal placers, are discussed in this paper for the first time. Zircons from wehrlite of the Feklistov massif, similarly to worldwide zoned clinopyroxenite–dunite massifs, are characterized by different morphology, composition...

The in situ chemical differentiation of continental crust ultimately leads to the long-term stability of continents. This process, more commonly known as ‘cratonization’, is driven by deep crustal melting with the transfer of melts to shallower regions, resulting in a strongly chemically stratified crust in which a refractory, dehydrated lower port...

The crystalline basement beneath the Cretaceous to Cenozoic Bight and Eucla Basins, in Western Australia has received comparatively little attention even though it lies on the eastern margin of one of the most mineral resource endowed regions on the planet. This basement is characterized by a complex geological evolution spanning c. 2 billion years...

The first LA–ICP–MS U–Pb isotopic ages of detrital zircons from the Ordovician sandstones of the Sol–Iletsk Block (well 2–Ordovician), located at junction of the East European Platform with the Pre-Caspian Basin and the Pre-Uralian foredeep, are presented. Two detrital zircons with well-defined ages of 561 ± 4 and 570 ± 5 Ma were found in sample K1...

New LA-ICP-MS data on the U–Pb isotope age, Hf isotope characteristics, and concentrations of trace elements in zircons from volcanic tuff of the Upper Vendian Sylvitsa Group on the western slope of the Middle Urals are reported.

Integration of geochronological analyses of in situ zircons with the petrological study of their microstructural growth microdomains (through petrography and phase diagram modeling) yields a more precise interpretation and understanding of any geological process than the study of ages from separate zircons. This is essential especially for those ro...

Analyses of trace elements and Lu/Hf isotopes have been carried out in already U–Pb dated detri-tal zircons from the Upper Ordovician sandstones of the southern part of the Bashkir Uplift. The concentrations of trace elements in the zircons suggest that they were derived from rocks of intermediate (62%), basic (24%), and felsic (9%) compositions as...

The c. 570–530 Ma intraplate Petermann Orogeny of central Australia involved high temperature and pressure metamorphism, deformation, and uplift of the Mesoproterozoic Musgrave region and associated components of the Neoproterozoic Centralian Superbasin. Orogenesis was accompanied by deposition of a syn-tectonic siliciclastic sedimentary package (S...

Mineralogical studies and U–Pb dating have been carried out on rutile included in peridotitic and eclogitic garnets from the Internatsionalnaya pipe, Mirny field, Siberian craton. We also describe a unique peridotitic paragenesis (rutile + forsterite + enstatite + Cr-diopside + Cr-pyrope) preserved in diamond from the Mir pipe, Mirny field. Composi...

An Early Cretaceous siliceous large igneous province (SLIP) that developed on the eastern margin of Gondwana produced some of the most voluminous siliceous volcaniclastic deposits known globally. We report U-Pb ages and trace-element and Hf-isotopic signatures of detrital zircons from the Madura Shelf (onshore Bight Basin), Western Australia. These...

This study evaluates in detail the mineral chemistry, whole-rock and mineral separate Os-isotope compositions of distinct platinum-group mineral (PGM) assemblages in an isolated chromitite pod at Harold's Gravewhich occurs in mantle tectonite in the Shetland Ophiolite Complex (SOC), Scotland. Thiswas the first ophiolite sequence worldwide that was...

We present results of investigation of the trace-element (REE, HFSE) and Hf isotope compositions and U-Pb age of single zircons crystallized from alkaline-carbonatite magmas of the Ilmeny-Vishnevogorsky complex (IVC) (Urals, Russia). It has been established that the geochemical characteristics of the early zircon (U-Pb age of 430-410 Ma) from alkal...

U-Pb age and Hf-isotope data were collected on zircons from crustal xenoliths from the Late Devonian kimberlite pipes of Markha terrane. The xenoliths include mafic garnet granulites (Gt+Pl+Cpx±Opx±Amp±Bt±Scp) and garnet-biotite gneisses (Grt+Bt+Pl+Kfs+Qtz±Scp). The data from this study demonstrate that the crust of the Markha terrane experienced s...

The first results of U–Pb dating of detrital zircons from Upper Ordovician sandstones of the Bashkir uplift in the Southern Urals and U–Pb isotopic ages available for detrital zircons from six stratigraphic levels of the Riphean–Paleozoic section of this region are discussed. It is established that the long (approximately 1.5 Ga) depositional histo...

Large peridotite massifs are scattered along the 1500 km length of the Yarlung–Zangbo Suture Zone (southern Tibet, China), the major suture between Asia and Greater India. Diamonds occur in the peridotites and chromitites of several massifs, together with an extensive suite of trace phases that indicate extremely low fO2 (SiC, nitrides, carbides, n...

Metagranitic orthogneisses are abundant in the Central Iberian Zone (CIZ). This felsic magmatism has a highly peraluminous composition (A/CNK = 1.07–1.62) defining a typical S-type granite character, common in crustal thickening environments. The studied Spanish Central System (SCS) orthogneisses yield Late Cambrian to Early Ordovician U–Pb zircon...

The isotopic and geochemical characteristics of platinum-group element (PGE) mineralization in Mg-bearing chromitite from the banded dunite–wehrlite–clinopyroxenite complex of the Nurali lherzolite massif, the South Urals, Russia is characterized for the first time. Electron microprobe analysis and LA MC-ICP-MS are used for studying Cr-spinel and p...

The preservation of ultrahigh-pressure and super-reduced phases (diamond, moissanite, etc.) in the harzburgites and chromitites of the Yarlung Zangbo ophiolites (South Tibet, China) has major implications for mantle recycling and lithosphere evolution in the tectonic system related to the closing of the Neo-Tethyan Ocean. However, important aspects...

We test the hypothesis that the Transgondwanan Supermountains at the collision of East and West Gondwanaland were the provenance of a vast turbiditic fan that stretched alongside the East Gondwanaland margin to eastern Australia which, in turn, became the provenance of sediment shed into interior Australia to the Cretaceous Ceduna Delta in central-...

Perovskite (CaTiO3) has become a very useful mineral for dating kimberlite eruptions, as well as for constraining the compositional evolution of a kimberlitic magma and its source. Despite the undeniable potential of such an approach, no similar study had been done in Angola, the fourth largest diamond producer in Africa. Here we present the first...

New major-, minor- and trace-element data on high-Cr chromites from several ophiolitic podiform chromitites from Lycian and Antalya peridotites in southwestern Turkey reveal a polygenetic origin from a range of arc-type melts within forearc and back-arc settings. These forearc and the back-arc related high-Cr chromitites are interpreted to reflect...

Zircons have been studied in three samples of Archean plagiogneisses from the Kola superdeep well (SG-3). The crystals consist of cores, magmatic shells, and metamorphic rims. The cores and shells are characterized by similar lowered concentrations of most trace elements, which is typical of zircons from plagiogranitoids, rocks of elevated basicity...

Hf) единичных зерен циркона и локального определения U-Pb возраста циркона, кристаллизовавшегося из щелочно-карбонатитовых магм ильмено-вишневогорского комплекса (Урал, Россия). Установлено, что состав раннего циркона (U-Pb возраст 430—410 млн лет) из щелочных по-род и карбонатитов ильмено-вишневогорского комплекса (ИВК) определяется в основном эво...

Zoned clinopyroxenite–dunite Uralian–Alaskan-type complexes of the Uralian Platinum Belt are the source of economic platinum deposits. One of the striking features of Uralian–Alaskan-type complexes is a pronounced Pt anomaly, which clearly distinguishes them from cumulate series of ophiolite massifs elsewhere, but there is still uncertainty regardi...

The Chubut Group constitutes the most widespread sedimentary unit in NE Patagonia, characterized by variable-energy fluvial deposits. U-Pb analysis of detrital zircons from two sections of the Chubut Group constraint the age of the oldest sedimentary rocks in the northeast of the Somuncurá - Cañadón Asfalto Basin. In the Cañadón Williams area, at S...

The isotopic-geochronological features of thorianite and baddeleyite from carbonatites of the Guli massif, located within Maimecha-Kotui province in the north of the Siberian Platform, are characterized for the first time. The economic complex platinum-group element (PGE) and gold placer deposits are closely related to the Guli massif. Similar geoc...

Archean mafic-ultramafic melts, crystallized as layered intrusions in the upper crust and extruded as komatiitic flows, are primary probes of upper mantle chemistry. However, the message from their primary chemical composition can be compromised by different modes of contamination. Contaminants are typically cryptic in terms of their geochemical an...

Craton margins can be subject to a wide array of gold genesis and redistribution processes, although high-grade terrains on craton margins are frequently viewed as less prospective than lower-grade counterparts. In contrast to this, the high-grade Tropicana Zone, a newly defined Archean crustal component on the eastern margin of the Yilgarn Craton...

The Albany–Fraser Orogen is a well-preserved example of Proterozoic modification of an Archean craton margin. The formation of two successive basin systems accompanied by magmatism along the southern and southeastern Yilgarn Craton margin in Western Australia reflect distinct changes in tectonic regimes, resulting in significant transformations of...

We present results of zircon LA-ICP-MS U–Pb, Lu–Hf, and trace-element study in combination with whole-rock Sm-Nd and Rb-Sr isotope data on the magmatic rocks of the Markov Deep and Ashadze hydrothermal field (Mid-Atlantic Ridge). Zircon from three gabbronorite samples in the Markov Deep defined an U–Pb ages between 0.90 ± 0.02 and 2.00 ± 0.05 Ma, w...

The Baoulé-Mossi Paleoproterozoic domain is known for its world-class orogenic gold deposits formed during the Eburnean orogeny between ca. 2.15 and 2.07 Ga. As part of the orogenic cycle, a suite of mafic and felsic potassic intrusive rocks was emplaced between ca. 2.10 to 2.08 Ga along the Paleoproterozoic margin of the Archean Kéména Man craton...

Kimberlite magmatism is widespread across the Siberian Craton. Kimberlite pipes are not only economically important, but also provide samples of the lower crust and underlying subcontinental lithospheric mantle (SCLM) across the Craton. U-Pb and Lu-Hf isotopic systematics were studied in zircons from kimberlitic fields across the Craton. Preliminar...

The Nakyn kimberlite field is located within the Markha terrain in the eastern part of the Siberian Craton, in the Vilui-Markha deep fault zone. The field contains only four kimberlitic pipes; however all of them are diamondiferous including Nurbinskaya pipe-one of the most diamond-rich kimberlites of the Craton. The U-Pb age of zircons from Nurbin...

Geological Background. The lherzolite allochthons situated in the Main Uralian Fault zone (MUF) (Southern Urals, Russia) are accompanied by serpentine mélange comprising blocks of different high pressure garnet-bearing rocks [1, 2, 3]. Garnetites are a rare example of HP rocks in the mélange. They consist of 80-90% of high-Ca almandine-pyrope garne...

EXTRACT FROM BEGINNING OF CHAPTER Extensive geological and geophysical surveying in combination with data acquisition along regional common midpoint (CMP) profiles performed in 1995–2008: 1-EU (1st European Geotraverse across Russian Platform) and TATSEIS (Tatarstan Seismic) geotraverses, 4B cross-traverse, URSEIS (Urals Seismic Experiment and Inte...

ABSTRACT The Mesoarchean Kola-Karelia continent in the eastern Fennoscandian Shield includes three tectonic provinces, Kola, Karelia and Belomoria, that were formed by the Paleoarchean and Mesoarchean microcontinents. Traces of Mesoarchean tonalite-trondhjemite-granodiorite (TTG)−type early crust were documented in all of the most ancient units of...

Abstract Extensive geological and geophysical surveying, including data acquisition along the 1-EU (1st European Geotraverse across Russian Platform) and TATSEIS (Tatarstan Seismic) geotraverses, cross-traverse 4B, seismic profiles URSEIS (Urals Seismic Experiment and Integrated Studies) and ESRU-2003–2005 (Europrobe Seismic Reflection profiling in...

The results of regional geological study and geophysical surveying, including interpretation of common midpoint seismic geotraverses (1-EU, TATSEIS, and 4B in Russia; DOBRE in Ukraine; FIRE project in Finland), bear new information on 3D deep crustal structure and geological history of the early Precambrian East European craton. In addition, new ge...