...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Volcanology and Geothermal Research >Possible mechanism of molten sulfur eruption: Implications from near-surface structures around of a crater on a flank of Mt. Shiretokoiozan, Hokkaido, Japan
【24h】

Possible mechanism of molten sulfur eruption: Implications from near-surface structures around of a crater on a flank of Mt. Shiretokoiozan, Hokkaido, Japan

机译：熔融硫喷发的可能机理：来自山侧面的火山口周围的近地表结构。日本北海道知床山

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Shiretokoiozan volcano in northern Japan is well known for its eruptions, which eject huge amounts of molten sulfur. Watanabe (1940) reported details of the 1936 eruption, but its mechanisms, and how and where the huge amount of sulfur is produced and pushed out remain unknown. The aim of this study is to elucidate the near-surface underground structure of this area and the mechanisms of the molten sulfur eruption. We implemented aerial photographic observations, geological surveys, hot spring analysis, Self-Potential survey and DC resistivity surveys at the western flank of Mt. Shiretokoiozan. The geology of this area is mostly composed of hydrothermally altered boulders, gravels, sand, and clay. Some areas of fumaroles are covered by sulfur cement. Chemical analyses revealed that SW and Cl are rich in hot water, which imply an area with upwelling hot water/gas below the surface. Results of DC resistivity surveys conducted at several sites show extremely low resistivity, suggesting an aquifer several meters below the surface. Compiling this evidence, we infer a possible mechanism of molten sulfur eruption: the sulfur has been produced and stored in an aquifer located at the eastern hill from Crater I for several decades by chemical reactions of volcanic gases; it gushes out when volcanic activity becomes high. (C) 2017 The Authors. Published by Elsevier B.V.
机译：日本北部的Shiretokoiozan火山以喷发着称，喷出大量熔融硫。 Watanabe（1940）报道了1936年喷发的细节，但其机理以及产生和排出大量硫的方式和方式仍然未知。这项研究的目的是阐明该地区的近地表地下结构以及熔融硫喷发的机理。我们在山的西侧实施了航空摄影观测，地质调查，温泉分析，自势调查和直流电阻率调查。 Shiretokoiozan。该地区的地质主要由热液蚀变的巨石，砾石，沙子和粘土组成。喷气孔的某些区域被硫磺水泥覆盖。化学分析表明，SW和Cl富含热水，这意味着在地表以下区域有上升的热水/气体。在几个地点进行的直流电阻率调查的结果显示，电阻率极低，表明地表以下几米处的含水层。汇总这些证据，我们可以推断出可能发生的熔融硫喷发的机理：硫是通过火山气体的化学反应产生并储存在火山口I东部山丘的含水层中数十年的。当火山活动变高时，它涌出。 （C）2017作者。由Elsevier B.V.发布

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号