Chemical signatures of palaeotsunamis: A forgotten proxy?

被引：125

作者：

Chague-Goff, Catherine ^{[1
]}

机构：

[1] Univ New S Wales, Sch Biol Earth & Environm Sci, Australian Tsunami Res Ctr, Sydney, NSW 2052, Australia

来源：

MARINE GEOLOGY | 2010年 / 271卷 / 1-2期

基金：

澳大利亚研究理事会;

关键词：

sediment; salinity indicators; sulphur; chemical signatures; palaeotsunami deposits; NEW-ZEALAND; SEDIMENTARY DIFFERENCES; DISTINGUISHING TSUNAMI; ENVIRONMENTAL-CHANGES; COASTAL SEDIMENTS; BRITISH-COLUMBIA; GEOCHEMICAL DATA; NORTHEAST JAPAN; STORM DEPOSITS; PEAT BOGS;

D O I：

10.1016/j.margeo.2010.01.010

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A range of diagnostic criteria are required to help identify palaeotsunami deposits. Although chemical signatures have long been used as indicators of palaeosalinity in sedimentary sequences, their use in the studies of palaeotsunami deposits is rarely applied and is yet to be widely recognised. The chemical composition of interstitial water in coastal ponds and sedimentary sequences in coastal marshes and lagoons has been used successfully as an indicator of tsunami inundation. Chemical signatures can also provide clues about the landward limit of runup of a tsunami, beyond the area of sediment deposition. Like most palaeotsunami proxies however, the preservation of chemical signatures varies with environmental conditions. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：67 / 71

页数：5

共 51 条

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