自然杂志 ›› 2025, Vol. 47 ›› Issue (1): 64-78.doi: 10.3969/j.issn.0253-9608.2025.01.007

• 专题 • 上一篇    

非传统Li同位素示踪大陆风化的潜力和挑战

张飞,胡雅丹①②,曹阳,王永涛①②,侯思璐   

  1. ①中国科学院地球环境研究所 黄土与第四纪地质国家重点实验室,西安 710061;②中国科学院大学,北京 100049
  • 出版日期:2025-02-25 发布日期:2025-02-21

The potential and challenges of non-traditional Li isotopes on tracing continental weathering

ZHANG Fei, HU Yadan①②, CAO Yang, WANG Yongtao①②, HOU Silu   

  1. ①State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China; ②University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2025-02-25 Published:2025-02-21

摘要: 晚新生代以来全球气候逐渐变冷,形成了当今人类宜居的气候环境格局。在地质时间尺度上,大陆硅酸盐岩通过化学风化吸收大气中的CO2温室气体,被认为在调控地球长期的气候变化中起到关键作用。然而,大陆风化速率到底受何种因素控制一直是地球科学研究的前沿和难点,自20世纪下半叶以来得到科学界的广泛关注。本文回顾了过去几十年来大陆风化研究领域取得的重要进展,重点对利用新的非传统稳定锂(Li)同位素示踪大陆风化研究的潜力、争论及挑战进行梳理和汇总,希望为未来大陆风化研究提供有价值的线索,进而加快该领域的发展。

关键词: 大陆风化, Li同位素, 硅酸盐岩风化, 水文控制, 构造抬升

Abstract: Global cooling has formed a livable climate environment for humans since the late Cenozoic era. Over geological timescale, continental silicate rocks absorb CO2 greenhouse gases from the atmosphere through chemical weathering, which is believed to play a critical role in regulating long-term climate change on Earth. However, the factors of controlling the continental weathering rate that are the forefront and challenge of earth science research have received widespread attentions from the scientific community since the second half of the 20th century. This article reviews the important progress made in the field of continental weathering research over the past decades, with a focus on sorting out and summarizing the potential, controversies, and challenges of using new non-traditional stable Li isotopes to trace continental weathering. We hope that this will provide valuable clues for future continental weathering research, and further accelerate the development of this field.