Granite subduction: Arc subduction, tectonic erosion and sediment subduction

Yamamoto, Shinji; Senshu, Hiroki; Rino, Shuji; Omori, Soichi; Maruyama, Shigenori

doi:10.1016/j.gr.2008.12.009

Cited by 136 publications

(73 citation statements)

References 59 publications

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“…The effect of the high slab velocity is canceled out due to the effect of this high temperature. If the Archean earth is filled with oceanic microplates (Yamamoto et al 2009a), the supply rate substantially increases as shown in Fig. 9.14b, where the length of the subduction zone is 5 times larger than that of the present Earth, which is roughly estimated by assuming that the aspect ratio of the convection cells of the upper mantle is unity.…”

Section: Total Volume Of Subducted Continental Materialsmentioning

confidence: 99%

“…The thickness of the channel at the Earth's surface is estimated by geological and seismological studies as less than 2-3 km (Clift and Vannucchi 2004;Moore et al 2007;Collot et al 2011). The following three mechanisms are considered to form the channels (see Yamamoto et al 2009a for review): tectonic erosion (Von Huene and Scholl 1991), sediment-trapped subduction, and direct subduction of immature oceanic arcs on oceanic micro plates (Yamamoto et al 2009b).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Water on Subduction of Continental Materials to the Deep Earth

Ichikawa

Kawai

Yamamoto

et al. 2015

The Earth's Heterogeneous Mantle

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The flows in the subduction channels with wet mantle wedge are calculated by 1-D finite difference method with fine numerical resolutions. The water content largely affects the viscosity of the mantle wedge. Previous simulation result using dry rheology on the mantle wedge shows that viscosity of the subduction channels controls the process and that the sustainable thickness of the channel in the deep mantle is ~2-3 km. However, little is known about the effect of the water content in the mantle wedge on the subduction channels. Here, in order to estimate the supply rate of continental materials to the deep mantle with water-rich environment on the mantle wedge, we have conducted a numerical simulation of a subduction channel. The results show that the water content controls the flux of the continental materials especially when temperature of mantle wedge is high. Therefore, the water content of the mantle wedge can be more important in the ancient mantle because of its high temperature.

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Section: Total Volume Of Subducted Continental Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Water on Subduction of Continental Materials to the Deep Earth

Ichikawa

Kawai

Yamamoto

et al. 2015

The Earth's Heterogeneous Mantle

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“…A very important issue is subduction erosion and post-orogenic tectonics both could partly or fully destroy the intra-oceanic arc complexes [Scholl, von Huene, 2007;Yamamoto et al, 2009;Safonova et al, 2015]. In addition, may direct subduction into the deep mantle.…”

Section: P a L E O G E O D Y N A M I C Smentioning

confidence: 99%

Intra-Oceanic Arcs of the Paleo-Asian Ocean

Safonova

Kotlyarov

Krivonogov

2017

Geodin. tektonofiz.

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“…Growth of continental crust is a much debated issue with recognition that accretionary orogens related to active continental margins, that formed without continental collision, are a significant driver of crustal formation (Cawood et al, 2009;Yamamoto et al, 2009;Isozaki et al, 2010;Xiao et al, 2010). Contrasts between diverse processes of continental growth are well illustrated by Gondwana (Fig.…”

Section: Introductionmentioning

confidence: 99%