Quaternary - Wikipedia
网页The Quaternary (/ k w ə ˈ t ɜːr n ə r i, ˈ k w ɒ t ər n ɛr i / kwə-TUR-nə-ree, KWOT-ər-nerr-ee) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). [4]
Quaternary | Definition, Period, Climate, Animals, Plants, Timeline ...
网页Quaternary, in the geologic history of Earth, a unit of time within the Cenozoic Era, beginning 2,588,000 years ago and continuing to the present day. The Quaternary has been characterized by several periods of glaciation (the “ice ages” of common lore), when ice sheets many kilometres thick have.
Quaternary Definition & Meaning - Merriam-Webster
网页1. a. : of, relating to, or consisting of four units or members. b. : of, relating to, or being a number system with a base of four. 2. capitalized : of, relating to, or being the geologic …
Quaternary中文(简体)翻译：剑桥词典 - Cambridge Dictionary
网页adjective. geology specialized uk / kwəˈtɜː.n ə r.i / us / ˈkwɑː.t̬ɚ.ner.i / Add to word list. from or referring to the period of time from about 2.5 million years ago to the present, in which …
quarternary是什么意思_quarternary的翻译_音标_读音_用法_例句…
网页美 ['kwɔtənərɪ] 释义. adj. 四元的，四进制的，四级的. 实用场景例句. 全部. Some self - dispersion cationic polyurethane emulsion was prepared with quarternary ammonium groups in macromolecule chain. 合成了一系列的阳离子型水性聚氨酯乳液. 互联网. 爱词霸权威在线词典,为您提供quarternary的中文意思,quarternary的用法讲解,quarternary的读音,quarternary的同义词,quarternary的反义词,quarternary的例句等英语服务。
Quaternary Period Information and Facts - National Geographic
网页3 min read. Climate change and the developments it spurs carry the narrative of the Quaternary, the most recent 2.6 million years of Earth's history. Glaciers advance from the Poles and then...
Quaternary - Climate, Flora, Fauna | Britannica
网页It is a basic tenet of ecology that disturbance increases diversity and ultimately leads to evolutionary pressures. The Quaternary is replete with forces of disturbance and evidence for evolution in many living systems.
Quaternary在剑桥英语词典中的解释及翻译 - Cambridge Dictionary
网页noun [ S ] geology specialized uk / kwəˈtɜː.n ə r.i / us / ˈkwɑː.t̬ɚ.ner.i / the Quaternary. the period of time from about 2.5 million years ago to the present, in which modern humans appeared: The last 2 million years of the Earth's history is known as the Quaternary.
Quaternary Period summary | Britannica
网页The Quaternary follows the Neogene Period and is the most recent of the three periods of the Cenozoic Era. The Quaternary is subdivided into the Pleistocene Epoch and the Holocene Epoch and is characterized by major cyclical changes of climate on a global scale.
Quaternary | English meaning - Cambridge Dictionary
网页the period of time from about 2.5 million years ago to the present, in which modern humans appeared: The last 2 million years of the Earth's history is known as the Quaternary. He …
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