2022 Island Arc Award

IF 1 4区 地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY
Island Arc Pub Date : 2022-08-08 DOI:10.1111/iar.12451
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引用次数: 0

Abstract

Title: A visage of early Paleozoic Japan: Geotectonic and paleobiogeographical significance of Greater South China

Author: Yukio Isozaki

Reference: Island Arc (2019), 28, e12296

Tectonic evolution of Great South China (GSC) during early Paleozoic is fundamental for considering the origin of the Japanese Islands, but has not been fully understood. Nevertheless, zircon U–Pb ages from Paleozoic granitoids and sandstones have provided critical information on the continental margin along which proto-Japan began to grow. Based on currently available dataset of the dating as well as paleogeographic data, Isozaki (2019) reconstructed the early Paleozoic evolution of Japan. He suggested that the tectonic setting changed from a passive continental margin (Stage I) to an active margin (Stage II) during Cambrian when the oldest arc granitoid, high-P/T blueschist, and clastic sediments were formed. The predominant occurrence of Neoproterozoic zircons in Paleozoic rocks indicates that the relevant continental block was a part of South China, which probably formed a northeastern segment of GSC. He estimated that GSC was probably twice as large as the present conterminous South China. In addition, he summarized the faunal characteristics of the Permian marine fauna in Japan, which are in good accordance with the relative position of GSC with respect to the North China block during the late Paleozoic. This extensive summary and novel reconstruction provided clear pictures of the geological history of the Japanese Islands and prospective for future researches to the readers of Island Arc. Therefore, we identified that the paper by Isozaki is suitable for Island Arc Award in 2022.

Yukio Isozaki, the Professor Emeritus of the University of Tokyo, has broad expertise in histrorical geology, tectonics, and paleontology. He received his Ph.D from Osaka City University in Geology in 1986. He has worked as an Associate Professor and Professor in Yamaguchi University, Tokyo Institute of Technology, and the University of Tokyo until his retirement in last year. His research started in the analysis of ancient accretionary complexes using microfossils and geochronological dating. By proposing and utilizing the concept/scheme of ocean plate stratigraphy (OPS), he clarified the overall piled nappe structure of Southwest Japan, and synthesized the geological history of the Japanese Islands. His interest expands into the history of life, in particular, on mass extinction events in the past and relevant rapid biodiversification. His main targets include the biggest extinction in history across the Paleozoic-Mesozoic boundary and Cambrian-Ordovician biodiversification. He coined the term “superanoxia” for the long-term oxygen depletion in the Permo-Triassic superocean, a unique C-isotope episode named “Kamura event”, and proposed a possible scenario named “plume winter” for the mass extinction. Considering his extensive contributions, he received Fellow from the Geological Society of America in 2007 and from Japan Geoscience Union in 2019, and Geological Society Medal from the Geological Society of Japan in 2007.

2022年岛弧奖
标题:日本早古生代大地构造与古生物地理意义作者:Yukio isozaki参考文献:Island Arc (2019), 28, e12296大华南早古生代构造演化是考虑日本列岛起源的基础,但尚未完全了解。尽管如此,来自古生代花岗岩和砂岩的锆石U-Pb年龄为原始日本开始生长的大陆边缘提供了重要信息。Isozaki(2019)基于现有的年代数据集和古地理数据,重建了日本早古生代的演化。他认为寒武纪构造环境由被动大陆边缘(第一阶段)转变为活动大陆边缘(第二阶段),形成了最古老的弧花岗质、高p /T蓝片岩和碎屑沉积。古生代岩石中以新元古代锆石为主,表明相关大陆块体为华南的一部分,可能形成了GSC的东北段。他估计GSC的面积可能是现在与之相邻的华南的两倍。此外,他还总结了日本二叠纪海洋动物的区系特征,这些特征与晚古生代GSC相对于中国华北地块的相对位置很好地吻合。这种广泛的总结和新颖的重建为《岛弧》的读者提供了日本列岛地质历史的清晰画面和对未来研究的展望。因此,我们确定Isozaki的论文适合2022年的岛弧奖。矶崎由纪夫是东京大学名誉教授,在历史地质学、构造学和古生物学方面有着广泛的专业知识。1986年获得大阪市立大学地质学博士学位。他曾在山口大学、东京工业大学和东京大学担任副教授和教授,直到去年退休。他的研究开始于利用微化石和地质年代测定法分析古代增生复合体。他提出并运用海洋板块地层学(ocean plate stratigraphy, OPS)的概念/方案,厘清了日本西南部整体的堆积推覆构造,综合了日本列岛的地质历史。他的兴趣扩展到生命史,特别是过去的大规模灭绝事件和相关的快速生物多样化。他的主要研究对象包括古生代-中生代界历史上最大的灭绝和寒武纪-奥陶纪生物多样性。他为二叠纪-三叠纪超级海洋中的长期缺氧创造了“超缺氧”一词,一个独特的c同位素事件被称为“卡村事件”,并提出了一种可能的情景,称为“羽流冬季”。鉴于他的广泛贡献,他于2007年和2019年分别获得了美国地质学会和日本地球科学联合会的院士称号,并于2007年获得了日本地质学会的地质学会奖章。
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来源期刊
Island Arc
Island Arc 地学-地球科学综合
CiteScore
2.90
自引率
26.70%
发文量
32
审稿时长
>12 weeks
期刊介绍: Island Arc is the official journal of the Geological Society of Japan. This journal focuses on the structure, dynamics and evolution of convergent plate boundaries, including trenches, volcanic arcs, subducting plates, and both accretionary and collisional orogens in modern and ancient settings. The Journal also opens to other key geological processes and features of broad interest such as oceanic basins, mid-ocean ridges, hot spots, continental cratons, and their surfaces and roots. Papers that discuss the interaction between solid earth, atmosphere, and bodies of water are also welcome. Articles of immediate importance to other researchers, either by virtue of their new data, results or ideas are given priority publication. Island Arc publishes peer-reviewed articles and reviews. Original scientific articles, of a maximum length of 15 printed pages, are published promptly with a standard publication time from submission of 3 months. All articles are peer reviewed by at least two research experts in the field of the submitted paper.
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