New perspectives on water chemistry classification of travertine/tufa

IF 3.1 3区地球科学 Q1 GEOCHEMISTRY & GEOPHYSICS

Applied Geochemistry Pub Date : 2025-04-08 DOI:10.1016/j.apgeochem.2025.106386

Qunwei Dai , Ting Zhang , Dejun An , Jingwen He , Jie Cui , Qiongfang Li , Ronglin Xu , Faqin Dong , Zheng Dang , Qianxi Song

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引用次数: 0

Abstract

If travertine/tufa is a solidified carrier of information records, karst water is the most important transport carrier of such information. In this study, we investigate the water chemistry of partial travertine/tufa around the world. Based on the better linear relationship between Ca²⁺ and HCO₃⁻, the classification view of Ca²⁺-biased and HCO₃⁻-biased types is proposed. Ca²⁺-biased is defined as a high Ca²⁺ concentration compared to the theoretical value of the chemical formula for Ca(HCO₃)₂, while HCO₃⁻-biased is defined as a high HCO₃⁻ concentration compared to the theoretical value of the chemical formula for Ca(HCO₃)₂. By comparing the concentrations of Ca²⁺ and HCO₃⁻ in hot and cold spring travertine/tufa around the world, the relationship between Ca²⁺-biased and HCO₃⁻-biased type is described, providing reference for the classification research of travertine/tufa.

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来源期刊

Applied Geochemistry 地学-地球化学与地球物理

CiteScore

6.10

自引率

8.80%

发文量

272

审稿时长

65 days

期刊介绍： Applied Geochemistry is an international journal devoted to publication of original research papers, rapid research communications and selected review papers in geochemistry and urban geochemistry which have some practical application to an aspect of human endeavour, such as the preservation of the environment, health, waste disposal and the search for resources. Papers on applications of inorganic, organic and isotope geochemistry and geochemical processes are therefore welcome provided they meet the main criterion. Spatial and temporal monitoring case studies are only of interest to our international readership if they present new ideas of broad application. Topics covered include: (1) Environmental geochemistry (including natural and anthropogenic aspects, and protection and remediation strategies); (2) Hydrogeochemistry (surface and groundwater); (3) Medical (urban) geochemistry; (4) The search for energy resources (in particular unconventional oil and gas or emerging metal resources); (5) Energy exploitation (in particular geothermal energy and CCS); (6) Upgrading of energy and mineral resources where there is a direct geochemical application; and (7) Waste disposal, including nuclear waste disposal.