Evidence map›Paper›PMID 40587800›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2025

Jurassic constraints on the chaotic Mars-Earth eccentricity cycle linked to the volcanically induced Jenkyns event.

Yanan Fang, Paul E Olsen, Jingeng Sha, Jessica H Whiteside, Chengguo Guan, Masayuki Ikeda, Sha Li, Daran Zheng, Haichun Zhang, Bo Wang

Abstract read
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In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Yanan FangState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
Paul E OlsenDepartment of Earth and Environmental Sciences and Biology and Paleo Environment Division, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10968.ORCID 0000-0002-5852-6326
Jingeng ShaState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.ORCID 0000-0002-9307-0627
Jessica H WhitesideDepartment of Earth and Environmental Sciences, San Diego State University, San Diego, CA 92182.
Chengguo GuanState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
Masayuki IkedaDepartment of Earth and Planetary Science, University of Tokyo, Tokyo 113-0033, Japan.
Sha LiState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
Daran ZhengState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
Haichun ZhangState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.ORCID 0000-0003-4553-8317
Bo WangState Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.ORCID 0000-0002-8001-9937

Funding

Heising-Simons Foundation (HSF) CyclcoAstro project 4MNR | CAGS | Institute of Geology, Chinese Academy of Geological Sciences (Institute of Geology, CAGS) DD20221829MNR | Chinese Academy of Geological Sciences, Ministry of Natural Resources (CAGS) DD20190009National Natural Science Foundation of China 41730317National Natural Science Foundation of China 42293280National Natural Sicence Foundation of China 41802118
6 · The paper itself

Abstract

Solar system gravitational interactions are embedded in Earth's record of climate, providing a way to bypass the 60 Myr limit imposed by chaos. Presently with a 2.4 Myr period, the Mars-Earth beat cycle of orbital perihelion frequencies is particularly sensitive to chaotic diffusion, potentially varying by more than a million years. Early Mesozoic (252 to 145 Ma) strata provide some constraints on this cycle, with evidence of a swing through most of the solution space from 1.8 Myr at 210 Ma to 2.5 Myr at 190 Ma and back to 1.6 Myr at 180 Ma. However, only the 1.8 Myr cycle is corroborated by geochronologic data and the 1.6 Myr period is disputed. Here, we show that variations in land-plant-dominated stable carbon isotopic ratios (δ

Indexed as

astronomical solutionschaosJenkyns EventJurassicsolar system

Identifiers

PMID40587800
PMCPMC12260395

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.