摘要
基于热液及其羽状流的化学异常提出了一种海底热液的化学式探测方法。根据自行开发的Eh.Ag/Ag2S和pH三种化学电极,设计了多参数化学传感器系统。通过海试证明多参数化学传感器可灵敏地检测出由热液异常引起的化学量变化,并在长达半年的多次使用中表现出其稳定性好、寿命长的特点。在东太平洋中脊(EPR)赤道区域和西南印度洋中脊(SWIR)的60条测线中,获得有效测线55条,其中在29条测线上发现明显或可能的热液异常。研究表明,应用多参数化学传感器探测进行海底热液化学异常,是一种有效的方法。
On the basis of chemical anomalies between hydrothermal plumes and surrounding seawater a means of detecting hydrothermal activity is proposed.Therefore,a multiparameter chemical sensor integrating three types of electrochemical electrodes,including Eh,Ag/Ag2S and pH electrodes,is designed to be applied in deep-sea measurements during DY115-20 cruise by Dayang No.1 research vessel.It is proved by the measuring results that the multiparameter chemical sensor can help to detect the chemical anomalies of the plumes.The electrodes exhibit good sensitivity,stability and long lifetime in the multiple applications during six months.Among the 60 measurements in both East Pacific Ridge（EPR） and Southwest Indian Ridge（SWIR）,the integrated sensor records 55 groups of valid data,in which 29 records indicate potential active hydrothermal vents,which proves an effective tool in hydrothermal activity detection.
出处
《海洋学报》
CAS
CSCD
北大核心
2012年第2期179-184,共6页
基金
浙江省自然基金资助项目(Y5080084)
国家自然科学基金重点项目(40637037)
国家"八六三"项目(2006AA09Z216)
浙江省科技计划项目(2009C31153)
中央高校基本科研业务费专项资金
关键词
热液探测
化学异常
化学传感器
hydrothermal detection
chemical anomalies
chemical sensor
