Geomorphological classification of post-caldera volcanoes in the Buyan-Bratan caldera, North Bali, Indonesia.
Geomorphological classification of post-caldera volcanoes in the Buyan-Bratan caldera, North Bali, Indonesia.
复制标题
印度尼西亚巴厘岛北部布扬-布拉坦火山口火山的地貌分类。
DOI：
10.1088/1755-1315/103/1/012014
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
T.
中科院分区：
文献类型：
--
作者：
Okuno;M.;Harijoko;A.;Warmada;I W.;Watanabe;K.;Nakamura;T.;Taguchi;S. and Kobayashi;T.
印度尼西亚巴厘岛上Buyan-Bratan破火山口的破火山口后火山（Lesung，Tapak，Sengayang，Pohen和Adeng）的地貌可以通过地形解释进行分类。塔帕克火山有三个火山口，从北向南排列。从中央火山口流出的熔岩向下流向西北，将Tamblingan湖和Buyan湖分开。这些熔岩也覆盖了从勒松火山流出的熔岩流的尖端。因此，它是最近一次破火山口后火山喷发的产物。勒松火山也有两个火山口，火山碎屑锥上从北方斜坡到西部斜坡有一条沟壑。从南部火山口流出的熔岩沿着西侧流下，越过了火山口边缘。从南面向东面分布的熔岩也环绕着森加扬火山。阿登火山周围是波亨火山的雪崩沉积物。根据这些地形关系，Sengayang火山似乎是最古老的后破火山口火山，其次是Adeng，Pohen，Lesung和Tapak火山。这一地区周围的粗粒火山渣福尔斯与两个外来火山灰相互交织：来自龙目岛的Samalas火山灰（公元1257年）和Penelokan火山灰（约1000年）。5.5 kBP）从巴杜尔火山口。据估计，这些火山渣福尔斯的来源是塔帕火山或勒松火山，这意味着在全新世期间至少有两座火山爆发。
A landform of the post-caldera volcanoes (Lesung, Tapak, Sengayang, Pohen, and Adeng) in the Buyan–Bratan caldera on the island of Bali, Indonesia can be classified by topographic interpretation. The Tapak volcano has three craters, aligned from north to south. Lava effused from the central crater has flowed downward to the northwest, separating the Tamblingan and Buyan Lakes. This lava also covers the tip of the lava flow from the Lesung volcano. Therefore, it is a product of the latest post-caldera volcano eruption. The Lesung volcano also has two craters, with a gully developing on the pyroclastic cone from the northern slope to the western slope. Lava from the south crater has flowed down the western flank, beyond the caldera rim. Lava distributed on the eastern side from the south also surrounds the Sengayang volcano. The Adeng volcano is surrounded by debris avalanche deposits from the Pohen volcano. Based on these topographic relationships, Sengayang volcano appears to be the oldest of the post-caldera volcanoes, followed by the Adeng, Pohen, Lesung, and Tapak volcanoes. Coarse-grained scoria falls around this area are intercalated with two foreign tephras: the Samalas tephra (1257 AD) from Lombok Island and the Penelokan tephra (ca. 5.5 kBP) from the Batur caldera. The source of these scoria falls is estimated to be either the Tapak or Lesung volcano, implying that at least two volcanoes have erupted during the Holocene period.