首页|Mars exploration—In situ K-Ar dating of jarosite

Mars exploration—In situ K-Ar dating of jarosite

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To accurately determine the chronological framework of climatic variations recorded by various Martian terrains,the absolute ages of Martian events and cratering rate need to be constrained by either in situ dating or returned samples.In situ K-Ar dating is currently a more plausible dating technique as compared with sample return.Jarosite(KFe3[SO4]2[OH]6)is the only confirmed K sulfate mineral that is widely present on Mars,as indicated by in situ detection,orbital remote sensing,and meteorite studies.Jarosite can be used for precise K-Ar and 40Ar/39Ar dating.The preservation of jarosite on Mars provides information about the nature and duration of aqueous processes on the Martian surface.Different ages of Martian jarosite represent the key to constraining the transition from Martian surface water activity to arid climatic conditions.This paper summarizes recent advances in our knowledge of the spatial distribution of Martian jarosite,its mineralogical properties and stability on Mars,the Ar diffusion kinetics of jarosite,and the current status of in situ K-Ar dating.Moreover,we examine the key scientific issues to be addressed for in situ K-Ar dating of jarosite and Martian sample return missions,and discuss future research directions.

MarsJarositeIn situ K-Ar datingAr diffusionStability

Jing YANG、Dewen ZHENG、Ying WU、Hong CHEN、Li YANG、Bin ZHANG

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Key Laboratory of Active Tectonics and Geological Safety,Ministry of Natural Resources,Institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing 100081,China

State Key Laboratory of Earthquake Dynamics,Institute of Geology,China Earthquake Administration,Beijing 100029,China

Institute of Earth Sciences,China University of Geosciences,Beijing 100083,China

Key Laboratory of Cenozoic Geology and Environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China

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国家自然科学基金国家自然科学基金中国地调局地质调查项目中国博士后科学基金Graduate Innovation Fund Project of China University of Geosciences,Beijing(2021)

4224116141873063DD202216442021M703196YB2021YC021

2024

10.1007/s11430-023-1245-8

中国科学:地球科学(英文版)
中国科学院

中国科学:地球科学(英文版)

影响因子：1.002
ISSN：1674-7313
年,卷(期)：2024.67(3)
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