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- Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Epoch, unit of geological time during which a rock series is deposited. It is a subdivision of a geological period, and the word is capitalized when employed in a formal sense (e.g., Pleistocene Epoch).www.britannica.com/science/epoch-geologic-timeAn epoch is the second smallest geochronologic unit. It is equivalent to a chronostratigraphic series. [ 11][ 16] There are 37 defined epochs and one informal one.en.wikipedia.org/wiki/Geologic_time_scaleAn epoch in Geochronology is a period of time, typically in the order of tens of millions of years. The current epoch is the Holocene.en.wikipedia.org/wiki/EpochAn epoch in geology is a part of a period. Thus the Cainozoic era is now divided into three periods, the Palaeogene, the Neogene and the Quaternary. These are finally broken down into these epochs: Palaeocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene and Holocene.simple.wikipedia.org/wiki/Epoch_(geology)Geologic epoch A geologic epoch is the fourth largest unit of time for the geologic time scale (Figure 1). Geologic epochs are also referred to as "series" (the chronostratigraphic name) or simply "epochs". Epochs tend to be 13 to 35 million of years in length. Epochs are subsections of longer periods and consist of groups of shorter ages.energyeducation.ca/encyclopedia/Geologic_epoch
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Geologic time scale - Wikipedia
An epoch is the second smallest geochronologic unit. It is equivalent to a chronostratigraphic series. [11] [16] There are 37 defined epochs and one informal one. There are also 11 subepochs which are all within the Neogene and Quaternary. [2] See more
The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth. It is a system of chronological dating that uses chronostratigraphy (the process of relating strata to … See more
The geologic time scale is a way of representing deep time based on events that have occurred throughout Earth's history, a time span of about 4.54 ± 0.05 Ga (4.54 … See more
Early history
While a modern geological time scale was not formulated until 1911 by Arthur Holmes, the broader concept that rocks and time are related can be … See moreThe following table summarises the major events and characteristics of the divisions making up the geologic time scale of Earth. This table is arranged with the most recent geologic … See more
The GTS is divided into chronostratigraphic units and their corresponding geochronologic units. These are represented on the ICC published by the ICS; however, regional terms are still in use in some areas.
Chronostratigraphy See moreProposed Anthropocene Series/Epoch
First suggested in 2000, the Anthropocene is a proposed epoch/series for the most recent time in Earth's history. While still informal, it is a widely used term to denote the present geologic time interval, in which many conditions … See moreSome other planets and satellites in the Solar System have sufficiently rigid structures to have preserved records of their own histories, … See more
Wikipedia text under CC-BY-SA license Epoch (geology) - Simple English Wikipedia, the free encyclopedia
Geological history of Earth - Wikipedia
Pleistocene - Wikipedia
The Pleistocene (/ ˈ p l aɪ s t ə ˌ s iː n,-s t oʊ-/ PLY-stə-seen, -stoh-; [5] [6] often referred to colloquially as the Ice Age) is the geological epoch that lasted from c. 2.58 million to 11,700 years ago, spanning the Earth's most recent period of …
Geologic time | Periods, Time Scale, & Facts | Britannica
Jul 30, 2024 · It subdivides all time into named units of abstract time called—in descending order of duration— eons, eras, periods, epochs, and ages. The enumeration of those geologic time units is based on stratigraphy, which is …
Epoch | Eras, Periods & Ages | Britannica
Geologic time scale - Simple English Wikipedia, the free …
Geologic Time Scale - Geology (U.S. National Park …
Oct 5, 2021 · Geologic time scale showing the geologic eons, eras, periods, epochs, and associated dates in millions of years ago (MYA).
Geologic Time Scale : Divisions, Periods and Eons
Dec 6, 2023 · From the smallest unit of time, the epoch, to the largest unit, the eon, each division is defined by specific events and changes that took place on Earth. Understanding the divisions of time in the Geologic Time Scale is an …
Geologic epoch - Energy Education
A geologic epoch is the fourth largest unit of time for the geologic time scale (Figure 1). Geologic epochs are also referred to as "series" (the chronostratigraphic name) or simply "epochs". Epochs tend to be 13 to 35 …
Epoch - Wikipedia
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