Earth’s lost layers: 34-million-year-old mystery finally solved

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Key Points

This global sediment gap offers new insights into Earth's response to dramatic climate changes...

The research, published in Earth-Science Reviews, reveals a widespread absence of sediment deposits dating back to a major climate transition 34 million years ago, known as the Eocene-Oligocene boundary...

Conventional models predicted that the cooling climate and dramatic sea-level drop during this period should have resulted in extensive continental erosion, depositing vast amounts of sediment onto the ocean floor..

Despite the magnitude of this change, the study found a consistent absence of sedimentary deposits across all seven continents' margins.. Burton and his team propose several theories to explain this phenomenon..

While the Eocene-Oligocene transition occurred over a much longer timescale than today's rapid climate change, the study's findings highlight the potential for significant and unexpected global consequences...