Amelung Falk, Yun Sang-Ho, Walter Thomas R, Segall Paul, Kim Sang-Wan
Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, USA.
Science. 2007 May 18;316(5827):1026-30. doi: 10.1126/science.1140035.
Mauna Loa volcano, Hawaii, deforms by a combination of shallow dike intrusions in the rift zones and earthquakes along the base of the volcano, but it is not known how the spreading is accommodated in the lower part of the volcanic edifice. We present evidence from interferometric synthetic aperture radar data for secular inflation of a dike-like magma body at intermediate depth in the southwest rift zone during 2002 to 2005. Magma accumulation occurred in a section of the rift zone that was unclamped by previous dikes and earthquakes, suggesting that stress transfer plays an important role in controlling subsurface magma accumulation.
夏威夷的莫纳罗亚火山通过裂谷带浅层岩脉侵入和火山底部地震的共同作用而变形，但尚不清楚在火山结构体下部是如何适应这种扩张的。我们提供了干涉合成孔径雷达数据的证据，表明2002年至2005年期间，西南裂谷带中间深度处有一个似岩脉的岩浆体长期膨胀。岩浆在裂谷带的一段未被先前岩脉和地震影响的区域堆积，这表明应力转移在控制地下岩浆堆积方面起着重要作用。
