Earth Science Frontiers ›› 2025, Vol. 32 ›› Issue (3): 392-407.DOI: 10.13745/j.esf.sf.2025.3.40

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Progress and perspectives of meteoric 10Be applications in Earth Science

YANG Ruihan(), YANG Ye*(), CAO Zhenping, XU Sheng   

  1. Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
  • Received:2025-02-07 Revised:2025-02-26 Online:2025-03-25 Published:2025-04-20

Abstract:

High-energy cosmic rays and their secondary particles interact with atmospheric and surface material atoms, generating meteoric and in-situ cosmogenic nuclides. Meteoric 10Be is primarily produced by nuclear reactions between spallation neutrons and oxygen and nitrogen in the atmosphere. It becomes adsorbed onto aerosols, migrates through the atmosphere, and is deposited on the Earth’s surface via wet and dry deposition. Compared to 14C, meteoric 10Be has a much longer half-life (1.387 Ma), enabling its use for dating over timescales of several million years. Unlike in-situ 10Be, meteoric 10Be is a proxy for geochronology and chemical weathering. Additionally, it is valuable for reconstructing paleomagnetic field intensity and paleo-precipitation changes. Its broad range of applications, higher natural nuclide concentration, and simple laboratory preparation make meteoric 10Be wellsuited for extraction and accelerator mass spectrometry analysis. Despite its widespread application across various disciplines, a comprehensive review and critical analysis of meteoric 10Be’s utility in paleomagnetic intensity reconstruction, precipitation studies, weathering flux quantification, and geochronology applications remain lacking. This paper reviews the basic principles of atmospheric 10Be production and highlights its applications in Earth science, including samples of marine sediments, loess deposits, ice cores, and river sediments. It explores the potential of meteoric 10Be in advancing surface Earth system science and provides a preliminary outlook on the opportunities and challenges for future research.

Key words: meteoric 10Be, deposition flux, paleomagnetic field intensity, paleo-precipitation, Earth surface weathering

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