摘要
经野外取样和XRD测试技术,根据温泉沉积物的矿物学标识,将即墨Cl-Na型温泉沉积物划分为喷流相、越流相沉积和喷口—通道亚相沉积,并阐述其基本概念、成因以及"盆下源"沉积模式;建立起蛋白石—石膏—岩盐—锌铅铁矾—赤铁矿喷流沉积相和通道—喷口沉积亚相的矿物学标识。上述研究有以下几方面意义:①界定温泉沉积物的概念和划分成因类型;②建立盲温泉与古地热活动寻找标识,圈定地热中心,指导现代温泉地热资源开发;③提供现代海底热水沉积作用、成矿作用的模拟环境。
Based on field sampling, XRD data and mineralogical symptoms of warm spring sedimentation, the authors divided the warm spring sedimentation into eruptive-flow depositional facies, leaky depositional facies and vent-channelway depositional subfacies, and described in detail the basic concept, the formation mechanism, and the depositional model for warm spring sedimentation. Mineralogical symptoms of the eruptive-flow depositional facies and the vent-channelway depositional facies are set up, being the series of opal-gypsum-halite-zincobotryogen-hematite. The significance of the above study is reflected in the following aspects： ① the defining of the concept of warm spring sedimentation and the division of genetic types of warm spring sedimentation; ② the construction of the symptoms in search for hidden warm springs and ancient geothermal activities and the delineation of geothermal centers for guiding the exploitation of geothermal resources; ③ the formulation of analogous surroundings for ocean floor hydrothermal sedimentation and ore-forming process.
出处
《地球学报》
EI
CAS
CSCD
北大核心
2007年第5期418-427,共10页
Acta Geoscientica Sinica
基金
山东省自然科学基金资助项目(编号:Y2005E03)资助
关键词
Cl—Na型温泉
矿物学标识
沉积相
沉积模式
Cl-Na type warm spring, mineralogical symptom, depositional facies, sedimentary model
