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The Holocene (/ ˈ h ɒ l. ə s iː n,-oʊ-, ˈ h oʊ. l ə-,-l oʊ-/) [2] [3] is the current geological epoch, beginning approximately 11,700 years ago. [4] It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. [4] The Holocene and the preceding Pleistocene [5] together form the Quaternary period.
The IUGS has yet to approve a type section, Global Boundary Stratotype Section and Point (GSSP), for the upper Pleistocene/Holocene boundary (i.e. the upper boundary). The proposed section is the North Greenland Ice Core Project ice core 75° 06' N 42° 18' W. [ 17 ] The lower boundary of the Pleistocene Series is formally defined ...
The warm Holocene period with the 8.2 kiloyear event. Central Greenland ice core reconstructed temperature up to mid-19th century. In climatology , the 8.2 kiloyear event was a rapid drop in global temperatures that occurred around 8,200 years ago, lasting between two and four centuries.
The current interglacial is known as the Holocene epoch. [1] ... but after the Mid-Pleistocene Transition that changed to high-amplitude cycles, ...
The Mid-Pleistocene Transition (MPT), also known as the Mid-Pleistocene Revolution (MPR), [1] is a fundamental change in the behaviour of glacial cycles during the Quaternary glaciations. [2] [3] The transition lasted around 550,000 years, [4] from 1.25 million years ago until 0.7 million years ago approximately, in the Pleistocene epoch. [5]
Initially the glacial/interglacial cycle length was about 41,000 years, but following the Mid-Pleistocene Transition about 1 Ma, it slowed to about 100,000 years, as evidenced most clearly by ice cores for the past 800,000 years and marine sediment cores for the earlier period. Over the past 740,000 years there have been eight glacial cycles.
The last glacial period was the most recent glacial period within the Quaternary glaciation at the end of the Pleistocene, and began about 110,000 years ago and ended about 11,700 years ago. [1]
Megafauna of the Pleistocene (mammoths, cave lions, woolly rhinos, reindeer, horses) The Quaternary spans from 2.58 million years ago to present day, and is the shortest geological period in the Phanerozoic Eon. It features modern animals, and dramatic changes in the climate. It is divided into two epochs: the Pleistocene and the Holocene.