Explosive volcanism on the ultraslow-spreading Gakkel ridge, Arctic Ocean

被引：0

作者：

Robert A. Sohn

Claire Willis

Susan Humphris

Timothy M. Shank

Hanumant Singh

Henrietta N. Edmonds

Clayton Kunz

Ulf Hedman

Elisabeth Helmke

Michael Jakuba

Bengt Liljebladh

Julia Linder

Christopher Murphy

Ko-ichi Nakamura

Taichi Sato

Vera Schlindwein

Christian Stranne

Maria Tausenfreund

Lucia Upchurch

Peter Winsor

Martin Jakobsson

Adam Soule

机构：

[1] Woods Hole Oceanographic Institution,Department of Geology and Geochemistry

[2] Woods Hole,undefined

[3] Massachusetts 02543,undefined

[4] USA ,undefined

[5] Marine Science Institute,undefined

[6] University of Texas at Austin,undefined

[7] Port Aransas,undefined

[8] Texas 78373,undefined

[9] USA ,undefined

[10] Swedish Polar Secretariat,undefined

[11] Alfred Wegener Institute for Polar and Marine Research,undefined

[12] Johns Hopkins University,undefined

[13] Baltimore,undefined

[14] Maryland 21218,undefined

[15] USA ,undefined

[16] Göteborg University,undefined

[17] AIST,undefined

[18] Tsukuba Central 7,undefined

[19] 1-1-1 Higashi,undefined

[20] Japan ,undefined

[21] Ocean Research Institute,undefined

[22] University of Tokyo,undefined

[23] Minamidai,undefined

[24] Nakano,undefined

[25] Tokyo 164-8639,undefined

[26] Japan ,undefined

[27] Stockholm University,undefined

来源：

Nature | 2008年 / 453卷

关键词：

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学科分类号：

摘要：

The latest deep submergence technologies have been used to perform the first high-definition photographic survey of the ultra-slow spreading Gakkel Ridge in the Arctic Basin, focusing on an area that is believed to have experienced a major eruption event in 1999. The images show that the axial valley at 4,000 m water depth is blanketed by an extensive set of pyroclastic deposits, raising important questions regarding the accumulation and discharge of magmatic volatiles on such ridges and demonstrating that large-scale pyroclastic activity is possible along even the deepest portions of the global mid-ocean ridge volcanic system.

引用

页码：1236 / 1238

页数：2

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