New research reveals that fluctuations in Earth’s tectonic plates play an indirect but fundamental role. emergence of different marine species.
By affecting sea levels, these geologically driven cycles have caused biodiversity eruptions every 36 million years, spanning a timeline of at least 250 million years.
As water levels rise and fall, the size of continental shelves and shallow oceans undergo dynamic changes that favor the survival or extinction of various organisms. By analyzing the fossil record, scientists Establishing a relationship between these environmental changes and the proliferation of new life forms.
Professor Dietmar Müller, co-author of the study, published in the Proceedings of the National Academy of Sciences at the University of Sydney’s School of Geosciences, explains: “The 36-million-year cycle means changes in the rate of seafloor expansion – a result of tectonic activity. Fluctuations push the depth of ocean basins and water into the Earth’s core. affect the transfer.
As a result, these changes give rise to extensive periods of shallow oceans, with fluctuations corresponding to the flooding and drying of the continents. These conditions have been proven key to increasing biodiversity.
Facilitated by the GPlates software developed by the EarthByte Group at the University of Sydney with support from the Australian National Collaborative Research Infrastructure Strategy (NCRIS) through AuScope, the research team’s research is based on a comprehensive examination of sea level variations, Earth mechanisms. and the marine fossil record.
Remarkably similar cycles observed in these areas serve as supporting evidence. importance of tectonic cycles and global changes in sea level world dynamics in the formation of marine biodiversity over large time scales.
prof. Soil – it’s like a slow simmering stew in a pot.”
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Source: Tec Mundo
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