The gravitational interaction between Earth and Mars leads to a cyclical change in their orbits every 2.4 million years, impacting climate patterns. Recent research identifies a shorter 1.6-million-year cycle associated with significant climatic shifts. Evidence is found in Jurassic sediments in northwestern China, showing well-defined cycles aligned with historical climate events, including the Jenkyns Event linked to volcanic activity. The findings extend the scope of reliable planetary orbit reconstruction by 120 million years, allowing for more extensive studies of solar system dynamics and orbital variations over geological timescales.
Researchers discovered evidence of a 1.6-million-year cycle affecting Earth and Mars climate patterns from Jurassic lake sediments in the Sangonghe Formation, China.
This new geological record pushes the boundary of reliable planetary orbit reconstructions about 120 million years deeper into the past, enhancing understanding of solar system dynamics.
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