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glaciation

1 The process by which supercooled water droplets change into ice crystals in the top of a cumulonimbus cloud as it reaches the calvus stage. The cloud may subsequently ...

glaciation

glaciation   Quick reference

A Dictionary of Geology and Earth Sciences (5 ed.)

Reference type:
Subject Reference
Current Version:
2020

... The covering of a landscape or larger region by ice; an ice...

glaciation

glaciation   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008

... 1 The process by which supercooled water droplets change into ice crystals in the top of a cumulonimbus cloud as it reaches the calvus stage. The cloud may subsequently develop capillatus features or a cirrus plume, or become an anvil cloud ( incus .) 2 An alternative term for glacial phase or ice age . 3 The state of being covered by a glacier , ice cap , or ice sheet...

Glaciation

Glaciation   Reference library

Encyclopedia of Global Change

Reference type:
Subject Reference
Current Version:
2005
Subject:
Science and technology, Environmental Science, Social sciences, Environment
Length:
5,712 words
Illustration(s):
5

...and passive continental margins. The first glaciation of the Paleozoic Era is recorded in unusually well preserved latest Ordovician deposits in North Africa and in glaciomarine strata in formerly adjacent terranes now located in Europe and North America. This glaciation appears to be of considerably smaller scale and shorter duration than earlier and later ones. Importantly, paleomagnetic investigations show that glaciation had shifted to high latitudes, a situation that characterizes all Phanerozoic glaciations. Slightly younger early Silurian glacial...

glaciation

glaciation   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

... The covering of a landscape or larger region by ice; an ice age...

glaciation

glaciation   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

... 1. The formation, movement, and recession of glaciers or ice sheets . 2. The geological processes of glacial activity, including erosion and deposition , and the effects of such action on the Earth's surface. 3. The process by which cloud particles change from water drops to ice...

continental glaciation

continental glaciation   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

...glaciation The formation of an ice sheet over a large area of a continent during a glacial...

glaciation

glaciation noun   Quick reference

New Oxford American Dictionary (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
43 words
glaciation

glaciation noun   Quick reference

Oxford Dictionary of English (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
52 words
glaciation

glaciation  

1 The process by which supercooled water droplets change into ice crystals in the top of a cumulonimbus cloud as it reaches the calvus stage. The cloud may subsequently develop capillatus features or ...
continental glaciation

continental glaciation  

The formation of an ice sheet over a large area of a continent during a glacial period.
pre-glacial

pre-glacial  

Before glaciation or before an ice age.
Nebraskan

Nebraskan  

The first N. American glaciation of the Pleistocene epoch, which is identified by deposits found in Nebraska. It began about 1.8 Ma ago and ended 1.65 Ma ago. It is approximately equivalent to the ...
Amersfoort

Amersfoort  

An interstadial during the last glaciation of the Netherlands (somewhere between 60 000 and 70 000 years ago). The July temperature (based on floral evidence) was perhaps 15–20°C.
fallstreak hole

fallstreak hole  

A clear, approximately circular or elliptical patch in thin stratiform cloud (particularly altocumulus or cirrocumulus). If glaciation is initiated over a relatively restricted area, the ice crystals ...
generating head

generating head  

A small clump or tuft of cloud in which glaciation is occurring, creating precipitation. Usually small cirrocumulus or altocumulus, particularly of the floccus species, with trailing virga. Present, ...
isostatic adjustment

isostatic adjustment  

The warping of part of the Earth's crust as a response to the redistribution of weight, for example associated with large‐scale glaciation and deglaciation. Also known as isostatic rebound. Contrast ...
geomorphic process

geomorphic process  

Processes that change the form or shape of the surface of the Earth, including desertification, erosion, fluvial processes, glaciation, and weathering.
glacioeustasy

glacioeustasy  

The theory that sea levels rise and fall in response to the melting of ice during interglacials and the accumulation of ice during glaciations. A major glacioeustatic oscillation has an amplitude of ...
glacial period

glacial period  

A general term used to describe either a glacial stage (e.g. Devensian) or an indeterminate period of glaciation.
rebound

rebound  

A recoil or movement back from an impact, particularly the upwarping of the Earth's crust after additional weight (for example during glaciation) is removed from it. Contrast subsidence.

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