Geodynamic conditions of volcanism and magma formation in the Kurile-Kamchatka island-arc system

Avdeiko, G. P.; Palueva, A. A.; Khleborodova, O. A.

doi:10.1134/s0869591106030027

Cited by 42 publications

(22 citation statements)

References 26 publications

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“…This is likely the reason for a widely accepted opinion that Sredinny Range volcanism either is dying [e.g. Avdeiko et al, 2002Avdeiko et al, , 2006 or is already dead [e.g. Park et al, 2002].…”

Section: Spatial Distributionmentioning

confidence: 99%

“…In Kamchatka, subduction is responsible for most of recent volcanism [e.g. Volynets, 1994;Churikova et al, 2001Churikova et al, , 2007Avdeiko et al, 2006;Portnyagin et al, 2007a, b]. However, its spatial distribution and time patterns are rather complicated.…”

Section: Introductionmentioning

confidence: 99%

“…The best example of this connection are findings of adakite-like rocks in northern Kamchatka, probably reflecting the edge of the subducting Pacific plate being warmed or ablated by mantle flow [Volynets et al, 1997b[Volynets et al, , 1999b[Volynets et al, , 2000Peyton, 2001;Yogodzinski et al, 2001a]. Research aimed at understanding of the nature of various volcanic zones in Kamchatka and their relation to the changing tectonic environment is currently going on in many areas of Kamchatka [e.g., Avdeiko et al, 2006;Churikova et al, 2001Churikova et al, , 2007Duggen et al, 2007;Perepelov, 2004;Perepelov et al, 2005;Portnyagin et al, 2005Portnyagin et al, , 2007aVolynets et al, 2005] and hopefully will result in the understanding of this dynamic region.…”

Section: Introductionmentioning

confidence: 99%

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Late Pleistocene-Holocene volcanism on the Kamchatka Peninsula, Northwest Pacific Region

Пономарева¹,

Мелекесцев²,

Braitseva³

et al. 2007

Volcanism and Subduction: The Kamchatka Region

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Late Pleistocene-Holocene volcanism in Kamchatka results from the subduction of the Pacific Plate under the peninsula and forms three volcanic belts arranged in en echelon manner from southeast to northwest. The cross-arc extent of recent volcanism exceeds 250 km and is one of the widest worldwide. All the belts are dominated by mafic rocks. Eruptives with SiO 2 >57% constitute ~25% of the most productive Central Kamchatka Depression belt and ~30% of the Eastern volcanic front, but <10% of the least productive Sredinny Range belt.All the Kamchatka volcanic rocks exhibit typical arc-type signatures and are represented by basalt-rhyolite series differing in alkalis. Typical Kamchatka arc basalts display a strong increase in LILE, LREE and HFSE from the front to the back-arc. La/Yb and Nb/Zr increase from the arc front to the back arc while B/Li and As, Sb, B, Cl and S concentrations decrease. The initial mantle source below Kamchatka ranges from N-MORB-like in the volcanic front and Central Kamchatka Depression to more enriched in the back arc. Rocks from the Central Kamchatka Depression range in 87 Sr/ 86 Sr ratios from 0.70334 to 0.70366, but have almost constant Nd isotopic ratios ( 143 Nd/ 144 Nd 0.51307-0.51312). This correlates with the highest U/Th ratios in these rocks and suggest the highest fluid-flux in the source region.Holocene large eruptions and eruptive histories of individual Holocene volcanoes have been studied with the help of tephrochronology and 14 C dating that permits analysis of time-space patterns of volcanic activity, evolution of the erupted products, and volcanic hazards.

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Section: Spatial Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Late Pleistocene-Holocene volcanism on the Kamchatka Peninsula, Northwest Pacific Region

Пономарева¹,

Мелекесцев²,

Braitseva³

et al. 2007

Volcanism and Subduction: The Kamchatka Region

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“…Volcanic activities on Kamchatka date back to the Cretaceous Period. The current plate-tectonic configuration, however, formed in the Late Miocene to Early Pliocene (Dorendorf et al 2000;Churikova et al 2001;Avdeiko et al 2006). The present volcanism is concentrated in three zones subparallel to the trench: the Eastern Volcanic Front (EVF), Central Kamchatka Depression (CKD), and Sredinny Range (SR), from east to west (Fig.…”

Section: Klyuchevskoy Volcanomentioning

confidence: 99%

A petrological and geochemical study on time-series samples from Klyuchevskoy volcano, Kamchatka arc

Bergal‐Kuvikas

Nakagawa

Kuritani

et al. 2017

Contrib Mineral Petrol

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“…IN KAMCHATKA In Kamchatka we distinguish three volcanic belts of different ages, which are three subduction volcanic arcs (Avdeiko et al, 2006). These belts contain, apart from typical calc alkaline arc rocks, alkaline basalts with intra plate geochemical characteristics (NEAB), high magne sium andesites and adakites (see table) (Volynets et al, 1997;Yogodzinski et al, 1994;Kepezhinskas et al, 1996;Volynets, 1994).…”

Section: Adakites and Basalts With Intraplate Geochemical Characterismentioning

confidence: 99%

The geodynamic conditions for the generation of adakites and Nb-rich basalts (NEAB)) in Kamchatka

Avdeiko

Bergal‐Kuvikas

2015

J. Volcanolog. Seismol.

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Abstract-An association of adakites and rocks with intraplate geochemical parameters (NEAB) is encoun tered in Kamchatka, even though the Pacific plate that is plunging under Kamchatka is an old (older than 93 Ma) and cold plate. Inspection and comparative analysis of NEAB-adakite associations in Kamchatka and else where at Pacific subduction zones revealed the geodynamic settings that favor heating of oceanic crust until the crust is melted and adakites are generated. Two geodynamic settings are favorable for the process: (1) an initial period of subduction with the tip of the slab melted and (2) generation of subduction windows. Both of these settings have existed in Kamchatka for a short period of time. In eastern Kamchatka, melting affected the tip of the slab in a new subduction zone that was formed during the late Miocene, as the subduction zone was blocked beneath the Sredinnyi Range as this zone jumped into its present location. The NEAB-adakite asso ciation in the northern part of the Sredinnyi Range was also formed in the tip of the slab that was part of the near Commander Islands plate. Geological sections were modeled to study conditions for the generation of NEAB-adakite associations in Kamchatka on the background of the ongoing geodynamic evolution.

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Geodynamic conditions of volcanism and magma formation in the Kurile-Kamchatka island-arc system

Cited by 42 publications

References 26 publications

Late Pleistocene-Holocene volcanism on the Kamchatka Peninsula, Northwest Pacific Region

Late Pleistocene-Holocene volcanism on the Kamchatka Peninsula, Northwest Pacific Region

A petrological and geochemical study on time-series samples from Klyuchevskoy volcano, Kamchatka arc

The geodynamic conditions for the generation of adakites and Nb-rich basalts (NEAB)) in Kamchatka

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