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 (Proceedings of the National Academy of Sciences, 2025)