Lacustrine sedimentary responses to earthquakes—soft-sediment deformation structures since late Pleistocene: A review of current understanding

Earthquake Research Advances Pub Date : 2023-04-01 DOI:10.1016/j.eqrea.2022.100158

Long Guo , Zhongtai He , Linlin Li

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引用次数: 2

Abstract

The traces left by earthquakes in lacustrine sediments are studied to determine the occurrence of ancient earthquakes by identifying seismically induced soft-sediment deformation structures (SSDS). Dating can help reconstruct the relative frequency of earthquakes. Identifying seismically induced seismites, which carry abundant seismic information from numerous SSDS, is both critical and challenging. Studying the deformation mechanism of SSDS and learning about the common criteria of seismically induced SSDS improve the identification of earthquake triggers. With better research into SSDS, seismic events can be effectively captured, and temporal constraints can be carried out by ¹⁴C dating and optically stimulated luminescence (OSL) dating to identify and date the occurrence of ancient earthquakes. The present contribution primarily addresses the meaning and mechanism of SSDS and their relationship with earthquake magnitude as well as the common criteria of the SSDS induced by earthquakes.

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晚更新世以来湖泊沉积对地震-软沉积变形构造的响应:当前认识综述

研究了地震在湖泊沉积物中留下的痕迹，通过识别地震引起的软沉积物变形结构（SSDS）来确定古代地震的发生。测年可以帮助重建地震的相对频率。识别地震诱发的地震岩是至关重要的，也是具有挑战性的。研究SSDS的变形机制，了解地震诱发SSDS的常见准则，有助于地震触发器的识别。随着对SSDS的更好研究，可以有效地捕捉地震事件，并通过14C定年和光激发光（OSL）定年进行时间约束，以识别和确定古代地震的发生日期。本文主要论述了SSDS的含义、机制及其与震级的关系，以及地震诱发SSDS的常见标准。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Earthquake Research Advances

CiteScore

4.30

自引率

0.00%

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