激光拉曼光谱技术对深海极端环境流体-岩石相互作用的启示  

Inspiration of Laser Raman Spectroscopy to the Fluid-Rock Interaction in Deep-Sea Extreme Environment

作　　者：张鑫[1,2] 席世川 ZHANG Xin;XI Shi-chuan(CAS Key Laboratory of Marine Geology and Environment,Center of Deep Sea Research,Institute of Oceanology,ChineseAcademy of Sciences,Qingdao Shandong 266071,China;University of Chinese Academy of Sciences,Beijing 101408,China)

机构地区：[1]中国科学院海洋研究所,海洋地质与环境重点实验室,深海极端环境与生命过程研究中心,山东青岛266071 [2]中国科学院大学,北京101408

出　　处：《矿物岩石地球化学通报》2022年第1期45-56,共12页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：青岛海洋科学与技术试点国家实验室海洋地质过程与环境功能实验室创新团队建设项目(MGQNLM-TD201904);国家自然科学基金项目(41822604);国家自然科学基金重大研究计划重点支持项目(92058206)。

摘　　要：激光拉曼光谱技术是一种无损、非接触的快速检测技术,已被广泛用于深海极端环境的原位探测。本文介绍了激光拉曼光谱技术在原位探测深海极端环境自生矿物形成演化中的应用,以及流体对矿物热氧化过程的影响,深化了拉曼光谱技术对矿物结构和组分的分析能力。总结了针对热液、冷泉流体组分(SO^(2-)_(4)、HSO^(-)_(4)、Cl^(-)、CH_(4)、H_(2)S、H_(2)和CO_(2))和理化参数(温度)建立的拉曼定量分析模型,以及原位探测应用实例。基于上述对流体相态、组分定量分析和矿物组分和结构建立的激光拉曼光谱分析新方法,阐述了激光拉曼光谱技术对原位探测深海极端环境流体-岩石相互作用的启示。未来主要通过升级现有激光拉曼原位探测系统,引入表面增强拉曼、长期多通道拉曼等技术,提高激光拉曼光谱探测技术的检测限和应用能力,在深海开展流体-岩石相互作用过程的原位监测和原位可控实验,以实现“将实验室搬到海底”的设想。Laser Raman spectroscopy is a rapid non-destructive and non-contact detection technology.Recently,it has been widely used in in-situ detection in extreme deep-sea environments.This paper introduces the application of laser Ra-man spectroscopy to the in-situ detection of the formation and evolution of authigenic minerals in extreme deep-sea environ-ments,as well as the influence of fluids on the thermal oxidation of minerals,and then deepens the ability of Raman spec-troscopy to analyze the structure and composition of minerals.In addition,this paper summarizes the quantitative Raman analysis models for measuring compounds of hydrothermal and cold seep fluids(SO^(2-)_(4),HSO^(-)_(4),Cl^(-),CH_(4),H_(2)S,H_(2),and CO_(2))and physicochemical parameters(temperature),and introduces example applications of in-situ detection in the deep-sea study.Based on the above-mentioned new methods of laser Raman spectroscopy for fluid phase state,quantitative components analysis,and composition and structure of mineral detection,the inspiration of laser Raman spectroscopy for in-situ detection of fluid-rock interactions in extreme deep-sea environments is explained.In the future,we will mainly upgrade the existing laser Raman in-situ detection system,introduce the surface enhanced Raman,long time multi-chan-nel Raman and other technologies,improve the detection limit and application ability of laser Raman spectroscopy,and develop the in-situ monitoring and controllable in-situ experiment on the fluid-rock interaction in the deep-sea extreme en-vironment,and thus realize the idea of“moving the laboratory to the seafloor”.

关 键 词：深海极端环境 拉曼光谱 定量分析 流体-岩石相互作用 原位探测 

分 类 号：P67[天文地球—海洋地质]