Magma eruption rates of Merapi volcano, Central Java, Indonesia during one century (1890–1992)
Magma eruption rates of Merapi volcano, Central Java, Indonesia during one century (1890–1992)
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印度尼西亚中爪哇默拉皮火山一个世纪（1890-1992）的岩浆喷发率
DOI：
10.1007/bf00301401
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发表时间：
1995
影响因子：
3.5
通讯作者：
I. Yokoyama
中科院分区：
文献类型：
--
作者：
S. Siswowidjoyo;I. Suryo;I. Yokoyama
本文按年代重新研究了默拉皮火山1890 ~ 1992年的岩浆喷发速率。对于这座火山来说，喷出熔岩和圆顶的运动以及它们的喷出是重要的，因为它们控制了随后活动的模式，并导致了新的阿登特和泥流。月喷发率变化很大，但熔岩的累积体积呈线性增加，表示为0.1x106 m3/月。这座火山的岩浆产出率可能在这100年里一直保持不变。反复出现的熔岩过度涌出被假定为岩浆库而作了初步解释。平均喷发率与其他火山如Nyramuragia，基拉韦厄和维苏威火山相比很小。然而，值得注意的是，这100年来火山活动一直持续不断，在此期间排出的熔岩总量达到108立方米以上。一个简单的模型形成的1992年熔岩圆顶。岩浆的粘度可能在106 ~ 107 P之间，岩浆通道的长度可能小于10 km。
The magma eruption rates of Merapi volcano form 1890 to 1992 are re-examined chronologically. For this volcano, movements of extruded lavas and domes as well as their extrusions are important because they control the modes of the subsequent activities and cause nuées ardentes and lahars. The monthly eruption rates varied widely, but the cumulative volume of lavas has increased linearly and is expressed as 0.1x106 m3/month. The magma production rate of this volcano may have been constant for these 100 years. Recurrent excessive effusion of lavas is tentatively interpreted by assuming a magma reservoir. The averaged eruption rate is small in comparison with other volcanoes such as Nyramuragia, Kilauea and Vesuvio. However, it is remarkable that the activity has been continuous for these 100 years and the total amount of lava discharged during this period reached more than 108 m3. A simple model for the formation of the 1992 lava dome is presented. The viscosity of the lavas is probably between 106 and 107 P and the length of the magma conduit is probably less than 10 km.