Sci Rep 2020 07 23;10(1):11984. Epub 2020 Jul 23.
Department of Geosciences, Graduate School of Science, Shizuoka University, Shizuoka, 790-8577, Japan.
Earth's orbital variations on timescales of 10-10 years, known as Milankovitch cycles, have played a critical role in pacing climate change and ecosystem dynamics, through glacial and/or monsoon dynamics. However, the climatic and biotic consequences of these cycles on much longer (~ 10 years) timescales remain unclear, due to a lack of long proxy records with precise age constraints. Here, we show ~ 10-Myr scale variations in early Mesozoic (250-180 Ma) records of lake-level, desert distribution, biogenic-silica burial flux, atmospheric CO levels (pCO), and sea-surface-temperature (SST). Read More