英语词汇“geological time”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

WORD FAMILY

geological time: geological times

USAGE EXAMPLES

She likes the awareness the desert gives her of distance, emptiness, and geological time.

The New Yorker(Oct 10, 2016)

If that passes, then geological time, whose passage is famously slow, will have ticked perceptibly on.

Economist(Aug 31, 2016)

The Anthropocene epoch should begin in about 1950, as man-made developments ended the geological time defined by the current epoch, the Holocene, the scientists said.

Time(Aug 29, 2016)

n the time of the physical formation and development of the earth (especially prior to human history)

Syn|Exp|Hypo|Hyper

geologic time

Phanerozoic aeon

the period from about 5,400 million years ago until the present

Age of Mammals

approximately the last 63 million years

Quaternary period

last 2 million years

Holocene epoch

approximately the last 10,000 years

Pleistocene epoch

from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution

Tertiary period

from 63 million to 2 million years ago

Pliocene epoch

from 13 million to 2 million years ago; growth of mountains; cooling of climate; more and larger mammals

Miocene epoch

from 25 million to 13 million years ago; appearance of grazing mammals

Oligocene epoch

from 40 million to 25 million years ago; appearance of sabertoothed cats

Eocene epoch

from 58 million to 40 million years ago; presence of modern mammals

Paleocene epoch

from 63 million to 58 million years ago; appearance of birds and earliest mammals

Age of Reptiles

from 230 million to 63 million years ago

Cretaceous period

from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants

Jurassic period

from 190 million to 135 million years ago; dinosaurs; conifers

Triassic period

from 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity

Paleozoic era

from 544 million to about 230 million years ago

Permian period

from 280 million to 230 million years ago; reptiles

Carboniferous period

from 345 million to 280 million years ago

Upper Carboniferous period

from 310 million to 280 million years ago; warm climate; swampy land

Lower Carboniferous period

from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects

Devonian period

from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites

Silurian period

from 425 million to 405 million years ago; first air-breathing animals

Ordovician period

from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds

Cambrian period

from 544 million to about 500 million years ago; marine invertebrates

Precambrian period

the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago

Proterozoic aeon

from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms

Archaeozoic aeon

the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life

Priscoan aeon

the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life

aeon, eon

the longest division of geological time

geological period, period

a unit of geological time during which a system of rocks formed

era, geological era

a major division of geological time; an era is usually divided into two or more periods

epoch

a unit of geological time that is a subdivision of a period and is itself divided into ages

glacial epoch, glacial period, ice age

any period of time during which glaciers covered a large part of the earth's surface

time

the continuum of experience in which events pass from the future through the present to the past

单词	geological time
释义	geological time (once / 26802 pages) n WORD FAMILY geological time: geological times USAGE EXAMPLES She likes the awareness the desert gives her of distance, emptiness, and geological time. The New Yorker(Oct 10, 2016) If that passes, then geological time, whose passage is famously slow, will have ticked perceptibly on. Economist(Aug 31, 2016) The Anthropocene epoch should begin in about 1950, as man-made developments ended the geological time defined by the current epoch, the Holocene, the scientists said. Time(Aug 29, 2016) n the time of the physical formation and development of the earth (especially prior to human history) Syn\|Exp\|Hypo\|Hyper geologic time Phanerozoic aeon the period from about 5,400 million years ago until the present Age of Mammals approximately the last 63 million years Quaternary period last 2 million years Holocene epoch approximately the last 10,000 years Pleistocene epoch from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution Tertiary period from 63 million to 2 million years ago Pliocene epoch from 13 million to 2 million years ago; growth of mountains; cooling of climate; more and larger mammals Miocene epoch from 25 million to 13 million years ago; appearance of grazing mammals Oligocene epoch from 40 million to 25 million years ago; appearance of sabertoothed cats Eocene epoch from 58 million to 40 million years ago; presence of modern mammals Paleocene epoch from 63 million to 58 million years ago; appearance of birds and earliest mammals Age of Reptiles from 230 million to 63 million years ago Cretaceous period from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants Jurassic period from 190 million to 135 million years ago; dinosaurs; conifers Triassic period from 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity Paleozoic era from 544 million to about 230 million years ago Permian period from 280 million to 230 million years ago; reptiles Carboniferous period from 345 million to 280 million years ago Upper Carboniferous period from 310 million to 280 million years ago; warm climate; swampy land Lower Carboniferous period from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects Devonian period from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites Silurian period from 425 million to 405 million years ago; first air-breathing animals Ordovician period from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds Cambrian period from 544 million to about 500 million years ago; marine invertebrates Precambrian period the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago Proterozoic aeon from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms Archaeozoic aeon the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life Priscoan aeon the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life aeon, eon the longest division of geological time geological period, period a unit of geological time during which a system of rocks formed era, geological era a major division of geological time; an era is usually divided into two or more periods epoch a unit of geological time that is a subdivision of a period and is itself divided into ages glacial epoch, glacial period, ice age any period of time during which glaciers covered a large part of the earth's surface time the continuum of experience in which events pass from the future through the present to the past
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