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Search 3,721 documents across 34 fields — every claim tier-rated by evidence

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5 results for "Eocene"

ZF_5_12 Verified Oceanography

ZF_5_12 — Paleocene-Eocene Thermal Maximum: Ancient Anoxic Ocean Crisis

The Paleocene-Eocene Thermal Maximum (PETM), occurring approximately 55.8 million years ago (latest Paleocene), was one of the most dramatic and rapid climate change events in the Cenozoic, offering the closest geologica

PETM Paleocene-Eocene Thermal Maximum hyperthermal carbon isotope excursion CIE ocean acidification

E_2_13 Verified Cataclysms & Chronology

E_2_13 — Paleocene-Eocene Thermal Maximum

The Paleocene-Eocene Thermal Maximum (PETM) — approximately 55.8 million years ago — was the most extreme rapid warming event of the past 66 million years and is widely studied as a deep-time analog for modern anthropoge

PETM Paleocene-Eocene Thermal Maximum hyperthermal carbon isotope excursion CIE methane clathrate

E_2_15 Verified Cataclysms & Chronology

E_2_15 — Azolla Event and Eocene Arctic Cooling

The Azolla Event (c. 49 Ma, Middle Eocene) refers to a period of approximately 800,000 years during which the floating freshwater fern _Azolla_ bloomed prolifically across the semi-enclosed Arctic Ocean, sequestering mas

Azolla event Azolla fern Arctic Ocean Eocene carbon sequestration CO₂ drawdown

ZF_4_08 Verified Oceanography

ZF_4_08 — Ocean Acidification Paleoclimate Record

Ocean acidification — the decrease in seawater pH caused by absorption of atmospheric CO₂ — is not only a modern phenomenon but has occurred repeatedly throughout Earth's history, leaving distinctive signals in the geolo

ocean acidification pH paleoclimate PETM Paleocene-Eocene Thermal Maximum carbonate compensation depth

ZF_1_04 Verified Oceanography

ZF_1_04 — Ocean-Climate Coupling: Paleoceanography

The ocean is Earth's primary climate regulator — absorbing ~93% of the excess heat trapped by greenhouse gases and ~30% of anthropogenic CO₂, storing 50 times more carbon than the atmosphere, and driving glacial-intergla

paleoceanography ice age Milankovitch cycles foraminifera oxygen isotope ocean carbon pump

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