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Heterogeneity in ice sheets- vs. monsoon rainfall-induced silicate weathering from high to low latitudes

Feng, Xuguang ; Zou, Jianjun ; Shi, Xuefa ; Lu, Zhengyao LU ; Cheng, Hai ; Zhong, Yi ; Yao, Zhengquan ; Yu, Zhaojie ; Li, Hanying and Dong, Zhi , et al. (2025) In npj Climate and Atmospheric Science 8(1).
Abstract

One of the most challenging problems in paleoclimate research is how orbital cyclicities forced Earth’s climate variations during the late Quaternary. To address this issue, we investigated the differences in silicate weathering, a sensitive climate indicator, at different latitudes on orbital timescales by examining geochemical and clay mineral data from the mid-latitude Sea of Okhotsk and integrating published weathering records from low to high latitudes. Results show that silicate weathering in the mid-latitude Sea of Okhotsk responded sensitively to both temperature and rainfall, indicating the combined influence of ice sheets and low-latitude monsoons. However, silicate weathering is more sensitive to temperature in high-latitude... (More)

One of the most challenging problems in paleoclimate research is how orbital cyclicities forced Earth’s climate variations during the late Quaternary. To address this issue, we investigated the differences in silicate weathering, a sensitive climate indicator, at different latitudes on orbital timescales by examining geochemical and clay mineral data from the mid-latitude Sea of Okhotsk and integrating published weathering records from low to high latitudes. Results show that silicate weathering in the mid-latitude Sea of Okhotsk responded sensitively to both temperature and rainfall, indicating the combined influence of ice sheets and low-latitude monsoons. However, silicate weathering is more sensitive to temperature in high-latitude regions, and to rainfall in tropical areas. Therefore, ice sheets primarily control silicate weathering at high latitudes, whereas monsoon rainfall has greater influences in tropical areas. These findings seem to support the “Milankovitch–Kutzbach” hypothesis, which proposes that ice sheets and monsoons together control orbital-scale climate variations of Earth.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
npj Climate and Atmospheric Science
volume
8
issue
1
article number
197
publisher
Springer Nature
external identifiers
  • scopus:105005806344
ISSN
2397-3722
DOI
10.1038/s41612-025-01079-9
language
English
LU publication?
yes
id
3e686e18-c6bb-40b6-8be8-47fa0834ad4d
date added to LUP
2025-07-14 09:45:32
date last changed
2025-07-18 07:15:07
@article{3e686e18-c6bb-40b6-8be8-47fa0834ad4d,
  abstract     = {{<p>One of the most challenging problems in paleoclimate research is how orbital cyclicities forced Earth’s climate variations during the late Quaternary. To address this issue, we investigated the differences in silicate weathering, a sensitive climate indicator, at different latitudes on orbital timescales by examining geochemical and clay mineral data from the mid-latitude Sea of Okhotsk and integrating published weathering records from low to high latitudes. Results show that silicate weathering in the mid-latitude Sea of Okhotsk responded sensitively to both temperature and rainfall, indicating the combined influence of ice sheets and low-latitude monsoons. However, silicate weathering is more sensitive to temperature in high-latitude regions, and to rainfall in tropical areas. Therefore, ice sheets primarily control silicate weathering at high latitudes, whereas monsoon rainfall has greater influences in tropical areas. These findings seem to support the “Milankovitch–Kutzbach” hypothesis, which proposes that ice sheets and monsoons together control orbital-scale climate variations of Earth.</p>}},
  author       = {{Feng, Xuguang and Zou, Jianjun and Shi, Xuefa and Lu, Zhengyao and Cheng, Hai and Zhong, Yi and Yao, Zhengquan and Yu, Zhaojie and Li, Hanying and Dong, Zhi and Zhao, Debo and Feng, Han and Dong, Jiang and Wang, Kunshan}},
  issn         = {{2397-3722}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{Springer Nature}},
  series       = {{npj Climate and Atmospheric Science}},
  title        = {{Heterogeneity in ice sheets- vs. monsoon rainfall-induced silicate weathering from high to low latitudes}},
  url          = {{http://dx.doi.org/10.1038/s41612-025-01079-9}},
  doi          = {{10.1038/s41612-025-01079-9}},
  volume       = {{8}},
  year         = {{2025}},
}