~5.9 cal ka BP Towada-Chuseri tephra from Towada volcano: a mid-Holocene marker layer from Japan to northeast China
~5.9 cal ka BP Towada-Chuseri tephra from Towada volcano: a mid-Holocene marker layer from Japan to northeast China
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来自十和田火山的 ~5.9 cal ka BP Towada-Chuseri 火山灰：从日本到中国东北的全新世中期标记层
DOI：
10.1002/jqs.3362
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发表时间：
2021
影响因子：
2.3
通讯作者：
Liu Jiaqi
中科院分区：
文献类型：
--
作者：
Sun Chunqing;Plunkett Gill;Zhu Zeyang;Zhang Lei;Zhan Bin;Zhang Di;Mao Qian;You Haitao;Wang Luo;Chu Guoqiang;Liu Jiaqi
来自爆发性火山爆发的远距离火山灰层可以提供宝贵的标志层，用于确定区域和全球沉积档案的年代和相互关联。在这里，我们提出了一个新的隐火山口与~5.9卡十和田-中泽里喷发（To-Cu）在中国东北泥炭沉积物记录。该火山灰具有流纹质玻璃成分，可以与日本和中国东北地区其他广泛分布的火山灰层区分开来。我们的发现大大扩展了这种火山灰的已知范围，使其现在可以追溯到距离其源头日本十和田火山约1200公里的地方。值得注意的是，该火山灰为西太平洋、日本中部、日本海和中国东北的中全新世古环境研究提供了重要的同步等时线。
Far‐travelled ash layers from explosive volcanic eruptions can provide invaluable marker horizons for dating and correlating regional to global sedimentary archives. Here, we present a new cryptotephra associated with the ~5.9 cal kabpTowada‐Chuseri eruption (To‐Cu) in a peat sediment record from northeast China. This tephra exhibits a rhyolitic glass composition that can be distinguished from other widespread tephra layers around the region of Japan and northeast China. Our findings extend the known range of this ash significantly, making it now traceable about 1200 km from its source, Towada volcano, Japan. Notably, this tephra provides an important isochron for synchronising palaeoenvironmental studies during the mid‐Holocene period from the western Pacific, central Japan, Japan Sea and northeast China.