岩石磁学方法在海洋样品研究中的多解性讨论
Evaluations of the multi-solution for applications of rock magnetism methods on marine samples
张强 1刘双迟 1刘建兴 2刘传周 1李金华 3刘青松4
作者信息
- 1. 中国科学院地质与地球物理研究所岩石圈演化国家重点实验室,北京 100029
- 2. 自然资源部第一海洋研究所海洋地质与成矿作用重点实验室,青岛 266061
- 3. 中国科学院地质与地球物理研究所地球与行星物理院重点实验室,北京 100029
- 4. 南方科技大学海洋科学与工程系,深圳 518055
- 折叠
摘要
岩石磁学是研究自然以及人工合成磁性矿物性质变化的应用型学科.海底岩石和海洋沉积物等海洋样品中含有不同成因及来源的磁性矿物.这些磁性矿物蕴含了全球气候变化、微生物矿化、地球动力学演化等关键地质信息.岩石磁学可以快速解析这些海洋样品中磁性矿物种类、含量、磁畴等特征的变化,为提取相关地质演化信息提供丰富的指标记录.然而,由于磁性矿物循环和海洋内部过程的固有复杂性,岩石磁学参数解译在海洋样品研究中存在多解性,在一定程度上制约了相关地质信息的深入解读.解决这一问题的关键在于对样品中载磁矿物的准确识别和量化.为此,本文首先简述了海洋样品中主要的磁性矿物类型,随后系统论述了应用岩石磁学方法评估海洋样品磁性矿物种类、含量以及磁畴状态等方面的多解性和注意事项.本文同时对岩石磁学的局限性、新兴技术和未来研究思路进行了展望.
Abstract
As an applied subject,the rock magnetism involves analyses of changes in magnetic properties of natural and synthetic minerals.Marine rocks and sediments contain magnetic minerals with different origins.Some key geological information,such as global climate changes,biomineralization,and earth dynamic evolution are preserved in these magnetic minerals.The variations of category,content,and domain state of magnetic minerals within marine samples can be resolved by rock magnetism,which provides abundant proxies for extracting related geological information.However,there are multi-solutions in the interpretation of rock magnetic parameters for marine samples due to the inherent complexities in magnetic mineral circulations and ocean internal processes,which prevents the well understanding of relevant geological information.The key to solving this problem is to better identify and quantify the magnetic minerals in samples.For this purpose,the main types of magnetic minerals in marine samples are described briefly,then this paper reviews the multi-solutions and matters needing attention for applications of rock magnetism in studies of category,content,and domain state of magnetic minerals in marine samples.At the same time,this paper looks forward to the prospects of limitations,emerging technologies,and future research strategy of rock magnetism.
关键词
岩石磁学/磁性矿物/海洋地质/海洋科学/参数多解性Key words
Rock magnetism/Magnetic mineral/Marine geology/Marine science/Multi-solutions of parameters引用本文复制引用
基金项目
国家自然科学基金(41974076)
国家自然科学基金(42104076)
国家自然科学基金(41920104009)
深圳科学与技术计划(KQTD20170810111725321)
出版年
2024
NETL
NSTL
万方数据