2.8 Ga Boninite-Hosting Partial Suprasubduction Zone Ophiolite Sequences from the North Karelian Greenstone Belt, NE Baltic Shield, Russia

Shchipansky, A. A.; Самсонов, А. В.; Bibikova, Elena; Babarina, I. I.; Konilov, A. N.; Krylov, K. A.; Слабунов, А. И.; Bogina, M. M.

doi:10.1016/s0166-2635(04)13014-4

Cited by 40 publications

(28 citation statements)

References 64 publications

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“…The Kovdozero granitegreenstone terrane that separates the Khetolambina terrane and Karelia palaeocontinent is formed by TTGgranitoids and gneisses hosting metasediments and metavolcanics of several greenstone belts, which belonged to the Parandovo-Tiksheozero island arc that existed from c.2.81 to 2.78 Ga . The Iringora greenstone belt includes the ophiolite complex of the same name with the age of 2.78 Ga [Shchipansky et al, 2004]. The origin of the island arc system inferred for the Kolmozero-Voronia greenstone belt in the Kola Peninsula is dated at 2.87-2.83 Ga; at 2.78-2.76 Ga, the island arc together with a fragment of oceanic plateau were accreted to the margin of the Murmansk microcontinent .…”

Section: The Plume-related Origin Of Harzburgitic Rocks In the Subconmentioning

confidence: 97%

Age and isotopic geochemical characteristics of Archean carbonatites and alkaline rocks of the Baltic shield

2007

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Paradoxically, the lists of "proxies" of both plate-and plume-related settings are devoid of even a mention of the high-grade metamorphic rocks (granulite, amphibolite and high-temperature eclogite facies). However, the granulite-gneiss belts and areas which contain these rocks, have a regional distribution in both the Precambrian and the Phanerozoic records. The origin and evolution of the granulite-gneiss belts correspond to the activity of plumes expressed in vigorous heating of the continental crust; intraplate magmatism; formation of rift depressions filled with sediments, juvenile lavas, and pyroclastic flow deposits; and metamorphism of lower and middle crustal complexes under conditions of granulite and high-temperature amphibolite facies that spreads over the fill of rift depressions also. Granulite-gneiss complexes of the East European Craton form one of the main components of the large oval intracontinental tectonic terranes of regional or continental rank. Inclusion of the granulite-gneiss complexes from Eastern Europe, North and South America, Africa, India, China and Australia in discussion of the problem indicated in the title to this paper, suggests consideration of a significant change in existing views on the relations between the plate-and plume-tectonic processes in geological history, as well as in supercontinent assembly and decay. The East European and North American cratons are fragments of the long-lived supercontinent Lauroscandia. After its appearance at ~2.8 Ga, the crust of this supercontinent evolved under the influence of the sequence of powerful mantle plumes (superplumes) up to ~0.85 Ga. During this time Lauroscandia was subjected to rifting, partial breakup and the following reconstruction of the continent. The processes of plate-tectonic type (rifting with the transition to spreading and closing of the short-lived ocean with subduction) within Lauroscandia were controlled by the superplumes. Revision of the nature of the granulite-gneiss complexes has led to a fundamental new understanding of: a more important role than envisaged previously for mantle-plume processes in the juvenile additions to the continental crust, especially during the Neoarchaean-Proterozoic; the existence of the supercontinent Lauroscandia from ~2.80 to 0.85 Ga; the leading role of mantle plumes in the interaction of plate-and plume-tectonics in the Neoarchaean-Proterozoic history of Lauroscandia and perhaps of the continental crust as a whole. We propose that the evolution of the geodynamic settings of the Earth's crust origin can be represented as a spiral sequence: the interaction of mantle-plume processes and embryonic microplate tectonics during the Palaeo-Mezoarchaean (~3.8-2.8 Ga) → plume-tectonics and local plume-driven plate-tectonics (~2.80-0.55 Ga) → Phanerozoic plate tectonics along with a reduced role of mantle plumes.Key words: Precambrian; plate-tectonics; plume-tectonics; granulite-gneiss belts; supercontinent; intracontinent oval orogenRecommended by E.V. Sklyarov Аннотация: Ка...

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Section: The Plume-related Origin Of Harzburgitic Rocks In the Subconmentioning

confidence: 97%

Age and isotopic geochemical characteristics of Archean carbonatites and alkaline rocks of the Baltic shield

2007

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“…We reported a fragment of the suprasubduction ophiolites with sheeted dikes in gabbroids and metalavas of the boninite series (~2.8 billion years) in the Iringora locality of the North-Karelian greenstone belt [Shchipansky et al, 2001[Shchipansky et al, , 2004. Later on, relics of a sheeted-dike complex were discovered in the Garbenchifer formation from the Eoarchean Isua supracrustal belt, southwestern Greenland [Furnes et al, 2007[Furnes et al, , 2009.…”

Section: Figmentioning

confidence: 99%

“…Complete SSZ ophiolite sequence Nascent juvenile island arc above a zone of subduction initiation Sun, Nesbitt, 1978;Cameron et al, 1980;Cameron, 1985;Sobolev et al, 1993;Pearce, Robinson, 2010;Whattam, Stern, 2011 Pindos Ophiolite Complex, NW Greece Harper, 1984;Harper, 2003;Wallin, Metcalf, 1998;Metcalf, Shervais, 2008 Coast Range Spadea et al, 1998;Kosarev et al, 2005;Puchkov, 2010;Belova et al, 2010 Ballantrae complex ophiolite, Southwest Scotland Kerrich et al, 1988;Wyman, 1999a;Wyman, 1999b Boninite Shchipansky et al, 1999;Shchipansky et al, 2001;Bibikova et al, 2003;Shchipansky et al, 2004Shchipansky, 2008 First evidence on a subduction initiation and oceanic lithosphere extension in the Earth history Polat et al, 2002;Polat, Hoffman, 2003;Furnes et al, 2007;...…”

Section: -95 Mamentioning

confidence: 99%

“…Tp and Tliq for boninite series rocks have been calculated from the appropriated compositions using software PRIMELT2.XLS [Herzberg, Asimow, 2008]. Data source: Troodos [Pearce, Robinson, 2010]; Tonga [Falloon et al, 2008]; Abitibi [Kerrich et al, 1998]; North Karelian greenstone belt [Shchipansky et al, 2004]. Data for the Kostomuksha komatiites were taken from [Puchtel et al, 1998].…”

Section: Petrogenesis Of the Boninite Series Rocks And Their Evolutimentioning

confidence: 99%

“…Tp и Tliq рассчитаны по выборке соответствующих условиям моделирования составов с помощью програм-мы PRIMELT2.XLS [Herzberg, Asimow, 2008]. Источники данных: Троодос [Pearce, Robinson, 2010], Тонга [Falloon et al, 2008], Абити-би [Kerrich et al, 1998], Северо-Карельский пояс [Shchipansky et al, 2004]. Для сравнения показаны данные по коматиитам Косто-мукши по [Puchtel et al, 1998].…”

Section: Petrogenesis Of the Boninite Series Rocks And Their Evolutiunclassified

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Neoproterozoic boninite-series rocks in South China: A depleted mantle source modified by sediment-derived melt

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2014

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Origin of geochemical mantle components: Role of spreading ridges and thermal evolution of mantle

Kimura

Gill

Keken

et al. 2017

Geochem Geophys Geosyst

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We explore the element redistribution at mid-ocean ridges (MOR) using a numerical model to evaluate the role of decompression melting of the mantle in Earth's geochemical cycle, with focus on the formation of the depleted mantle component. Our model uses a trace element mass balance based on an internally consistent thermodynamic-petrologic computation to explain the composition of MOR basalt (MORB) and residual peridotite. Model results for MORB-like basalts from 3.5 to 0 Ga indicate a high mantle potential temperature (T p ) of 1650-15008C during 3.5-1.5 Ga before decreasing gradually to 13008C today. The source mantle composition changed from primitive (PM) to depleted as T p decreased, but this source mantle is variable with an early depleted reservoir (EDR) mantle periodically present. We examine a twostage Sr-Nd-Hf-Pb isotopic evolution of mantle residues from melting of PM or EDR at MORs. At high-T p (3.5-1.5 Ga), the MOR process formed extremely depleted DMM. This coincided with formation of the majority of the continental crust, the subcontinental lithospheric mantle, and the enriched mantle components formed at subduction zones and now found in OIB. During cooler mantle conditions (1.5-0 Ga), the MOR process formed most of the modern ocean basin DMM. Changes in the mode of mantle convection from vigorous deep mantle recharge before 1.5 Ga to less vigorous afterward is suggested to explain the thermochemical mantle evolution.

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2.8 Ga Boninite-Hosting Partial Suprasubduction Zone Ophiolite Sequences from the North Karelian Greenstone Belt, NE Baltic Shield, Russia

Cited by 40 publications

References 64 publications

Age and isotopic geochemical characteristics of Archean carbonatites and alkaline rocks of the Baltic shield

Age and isotopic geochemical characteristics of Archean carbonatites and alkaline rocks of the Baltic shield

Neoproterozoic boninite-series rocks in South China: A depleted mantle source modified by sediment-derived melt

Origin of geochemical mantle components: Role of spreading ridges and thermal evolution of mantle

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