The sedimentation of Suminagashi-like floating clay patterns at El Chichón crater lake (Chiapas, Mexico)
The sedimentation of Suminagashi-like floating clay patterns at El Chichón crater lake (Chiapas, Mexico)
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El Chichón 火山口湖（墨西哥恰帕斯州）类似 Suminagashi 的浮粘土图案的沉积
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Iorio
中科院分区：
文献类型：
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作者：
D. Rouwet;M. Iorio
摘要这项研究以一种不寻常的、非艺术的方式描述了日本传统的Suminagashi纸大理石花纹技术，该技术基于对自然界(墨西哥恰帕斯的El Chichón火山口湖)的观察，并得到了波浪作用和Marangoni流等物理过程的支持。这是第一次将这些看似无关的现象联系在一起。我们展示了漂浮在El Chichón火山口湖面上的粘土与Suminagashi图案有多么相似。粘土通过剧烈的气体鼓泡或热对流从湖底升起。由于毛细管力的作用，粘土漂浮在水面上后，被风产生的海浪输送到湖岸。当湖水在湖岸附近变得很浅(几厘米)时，覆盖着粘土的湖面会受到马兰戈尼流的影响。平坦的湖底和湖岸的后退和汇入之间的动态交替导致了粘土图案的沉淀，保留了湖泊沉积物中的Suminagashi类图案。在沉积记录中识别出类似的模式可能表明过去存在浅沉积环境，可能指向一个加热的火山口湖。
Abstract This study describes the traditional Japanese Suminagashi paper marbling technique in an unusual, non-artistic way based on observations in nature (El Chichón crater lake, Chiapas, Mexico) and supported by physical processes such as wave action and Marangoni flow. It is the first time that these seemingly unrelated phenomena are linked. We show how clays floating on the surface of the El Chichón crater lake bear a strong resemblance to Suminagashi patterns. Clays rise from the lake bottom by vigorous bubbling of gases or thermal convection. After floating on the water surface due to capillary forces, the clays are transported towards the lake shore by wind-generated waves. The clay-covered lake surface is subject to Marangoni flow when the lake becomes very shallow (a few centimetres) near the lake shore. The flat lake bottom and the dynamic alternation between retreat and incurrence of the lake shore consequently result in the precipitation of the clay patterns, preserving the Suminagashi-like designs in the lake sediments. Recognition of similar patterns in the sedimentary record could indicate the presence of a shallow sedimentary environment in the past, possibly pointing to a heated crater lake.