Migration of fluids beneath yellowstone caldera inferred from satellite radar interferometry
Migration of fluids beneath yellowstone caldera inferred from satellite radar interferometry
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DOI：
10.1126/science.282.5388.458
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发表时间：
1998-10
期刊：
影响因子：
56.9
通讯作者：
C. Wicks;Wayne Thatcher;D. Dzurisin
中科院分区：
文献类型：
--
作者：
C. Wicks;Wayne Thatcher;D. Dzurisin
卫星干涉合成孔径雷达是唯一适合监测整个黄石火山口（约3000平方公里）的年复一年的变形。连续的干涉图表明，在1992年8月和1995年8月之间，火山口内的沉降迁移从一个复活的圆顶到其他。1995年8月至1996年9月，东北圆顶附近的破火山口区域开始膨胀，伴随的地表隆起在1996年9月至1997年6月迁移到西南圆顶。这些变形数据与热液或岩浆流体进出两个类似于冰碛的物体的迁移是一致的，这两个物体位于破火山口正下方约8公里处。
Satellite interferometric synthetic aperture radar is uniquely suited to monitoring year-to-year deformation of the entire Yellowstone caldera (about 3000 square kilometers). Sequential interferograms indicate that subsidence within the caldera migrated from one resurgent dome to the other between August 1992 and August 1995. Between August 1995 and September 1996, the caldera region near the northeast dome began to inflate, and accompanying surface uplift migrated to the southwest dome between September 1996 and June 1997. These deformation data are consistent with hydrothermal or magmatic fluid migration into and out of two sill-like bodies that are about 8 kilometers directly beneath the caldera.