Magma Type and Crustal Structure in the Aleutian Arc

Evolution of carbon dioxide-bearing saline fluids in the mantle wedge beneath the Northeast Japan arc

“…CO 2 -H 2 O-Cl-S fluids exsolved from island arc basalts H 2 O-rich components are released as aqueous fluids, hydrous silicate melts or supercritical fluids from subducting slabs and migrate to the mantle wedge beneath volcanic arcs (Coats 1962;Tatsumi 1989;Tatsumi and Eggins 1995;Iwamori 1998;Kawamoto et al 2012). The Northeast Japan arc is one of the coldest subduction zones (Syracuse et al 2010); therefore, aqueous fluids are most likely to be released from the subducting slab or from the down-dragged mantle flow (Tatsumi 1989;Peacock 1990;Davies and Stevenson 1992).…”

The Magma Engine and the driving force of plate tectonics

“…这一模型得到了Mason, Morley, Vine和Mathews等 人海底磁异常条带观察结果和Wilson根据夏威夷帝王 岛链提出的热点模型的支持. 几乎同时, 美国地质调查 局的Coats [9] 通过对阿留申群岛的研究则提出了岛弧俯 冲带的概念. 1965年, Wilson [8] 提出了转换断层的概念 和板块运动的威尔逊旋回.…”

Reducing risk where tectonic plates collide—U.S. Geological Survey subduction zone science plan

“…Discovery about how subduction drives great earthquakes, tsunamis, volcanic eruptions, coastal subsidence, and landslides has proceeded at a remarkably fast pace, beginning in the 1960s with the recognition of plate tectonics and the origin of subduction zones by USGS scientists and their colleagues (Coats, 1962;Plafker, 1965). Since 2004, USGS geologists have worked with international colleagues to study deposits that recorded land-level changes and tsunami inundation following recent great earthquakes in Sumatra, Chile, and Japan, and have learned how to recognize similar deposits along U.S. coastlines.…”