广东省河源断裂带碳酸泉水化学特征及形成机制

李静荣; 王中正; 王亚; 邱晓林; 张珂; 李景富

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广东省河源断裂带碳酸泉水化学特征及形成机制

论文 | 更新时间：2023-12-11

- 广东省河源断裂带碳酸泉水化学特征及形成机制
- The chemical characteristics and formation mechanisms of carbonate springs along Heyuan fault zone, Guangdong Province#br# 
- 中山大学学报(自然科学版)(中英文) 2018年57卷第5期页码：19-28
- 作者机构：
  
  1. 广东省有色地质环境中心,广东,广州,510062
  2. 
- 作者简介：
- 基金信息：
- DOI：
  中图分类号：
- 纸质出版日期：2018，
  
  网络出版日期：2018-9-25，
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李静荣, 王中正, 王亚, 等. 广东省河源断裂带碳酸泉水化学特征及形成机制[J]. 中山大学学报(自然科学版)(中英文), 2018,57(5):19-28.

LI Jingrong, WANG Zhongzheng, WANG Ya, et al. The chemical characteristics and formation mechanisms of carbonate springs along Heyuan fault zone, Guangdong Province#br# [J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2018,57(5):19-28.
李静荣, 王中正, 王亚, 等. 广东省河源断裂带碳酸泉水化学特征及形成机制[J]. 中山大学学报(自然科学版)(中英文), 2018,57(5):19-28. DOI：

LI Jingrong, WANG Zhongzheng, WANG Ya, et al. The chemical characteristics and formation mechanisms of carbonate springs along Heyuan fault zone, Guangdong Province#br# [J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2018,57(5):19-28. DOI：

摘要

为了解广东省河源断裂带碳酸泉的形成机理，全面认识碳酸泉形成过程，为碳酸泉的开发与管理提供科学依据，在河源断裂带地区采集了5组碳酸泉样品及18组非碳酸泉样品，开展了水化学特征分析及δD、δ

O、

C、δ

C和

He/

He多种同位素分析。结果表明，碳酸泉主要水化学类型为Na-Ca-HCO

型。δD、δ

O同位素分别介于-43.32‰~-41.72‰和-7.06‰~-6.55‰，位于大气降水线附近，表明其补给来源于大气降水，补给高程在1 000~1 300 m。通过

C法测年及修正后的δ

C年龄校正模型计算得到碳酸泉的年龄在21~26 ka。碳酸泉点δ

C的变化范围在-1‰~2‰之间，R/Ra（样品

He/

He与大气

He/

He之比）比值介于0~2.5，表明河源断裂带碳酸泉中的CO

为幔源与变质混合成因，并以变质作用为主。

Abstract

In order to understand the formation mechanisms of carbonated springs along Heyuan fault zone

Guangdong Province

comprehensively figure out their formation processes

and provide basic knowleges for their development and management

five groups of carbonated water samples and 18 groups noncarbonated water samples were collected along the Heyuan fault zone

Guangdong Province

and their hydrochemical characteristics

δD、δ

O、

C、δ

C and

He/

He isotopes were analyzed. The results showed that Na-Ca-HCO

is the main water chemistry type for the carbonated spring

and δD and δ

O isotopes are between -43.32‰~-41.72‰ and -7.06‰~-6.55‰

respectively. All the dots of groundwater smaples are located close to the atmospheric precipitation line

indicating that carbonated springs receive atmospheric precipitation recharging

and recharge elevation is between 1 000 m~1 300 m. The age of carbonated spring is calculated at 21~26 ka through the

C method dating and the revised δ

C age correction model. The range of δ

C of carbonated springs is between -1‰ and 2‰

with the R/Ra (the ratio of

He/

He in samples to

He/

He in atmosphere) ratio between 0 and 2.5

which indicates that CO

gas in carbonated springs in the Heyuan fault zone is the source of mixing between mantle source and metamorphism

and is mainly based on metamorphism.

关键词

断裂带碳酸泉水化学环境同位素

Keywords

fault zonecarbonated springhydrochemicalenvironmental isotopes

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