Definitions for asthenosphere
æsˈθɛn əˌsfɪəras·theno·spher·e

Princeton's WordNetRate this definition:5.0 / 1 vote

1. asthenospherenoun

   the lower layer of the crust

WiktionaryRate this definition:0.0 / 0 votes

1. asthenospherenoun

   The zone of the Earth's upper mantle, below the lithosphere.

2. Etymology: From ἀσθενής + sphere.

WikipediaRate this definition:0.0 / 0 votes

1. Asthenosphere

   The asthenosphere (from Ancient Greek ἀσθενός (asthenós) 'without strength') is the mechanically weak and ductile region of the upper mantle of Earth. It lies below the lithosphere, at a depth between ~80 and 200 km (50 and 120 mi) below the surface, and extends as deep as 700 km (430 mi). However, the lower boundary of the asthenosphere is not well defined. The asthenosphere is almost solid, but a slight amount of melting (less than 0.1% of the rock) contributes to its mechanical weakness. More extensive decompression melting of the asthenosphere takes place where it wells upwards, and this is the most important source of magma on Earth. It is the source of mid-ocean ridge basalt (MORB) and of some magmas that erupted above subduction zones or in regions of continental rifting.

ChatGPTRate this definition:0.0 / 0 votes

1. asthenosphere

   The asthenosphere is the highly viscous, semi-fluid, mechanically weak, and ductile layer of the upper mantle of the Earth. It lies beneath the lithosphere, at depths between approximately 80 km and 200 km below the Earth's surface. The asthenosphere is composed mostly of silicate rocks and is involved in tectonic plate movements, contributing to plate tectonics and volcanic activity.

WikidataRate this definition:0.0 / 0 votes

1. Asthenosphere

   The asthenosphere is the highly viscous, mechanically weak and ductilely-deforming region of the upper mantle of the Earth. It lies below the lithosphere, at depths between 100 and 200 km below the surface, but perhaps extending as deep as 700 km. It is considered the source region of mid-ocean ridge basalt.

Matched Categories

1. • Crust
   • Layer

Usage in printed sourcesFrom: 

1. [["1915","150"],["1916","1"],["1918","13"],["1919","6"],["1920","42"],["1921","4"],["1922","10"],["1923","8"],["1924","34"],["1925","1"],["1926","3"],["1927","11"],["1928","4"],["1929","27"],["1932","73"],["1933","14"],["1935","13"],["1936","19"],["1937","6"],["1938","1"],["1939","17"],["1940","556"],["1941","3"],["1942","14"],["1946","1"],["1947","1"],["1948","18"],["1949","3"],["1950","20"],["1951","52"],["1952","10"],["1953","5"],["1954","9"],["1955","4"],["1956","20"],["1957","72"],["1958","93"],["1959","87"],["1960","125"],["1961","2"],["1962","98"],["1963","20"],["1964","70"],["1965","25"],["1966","3"],["1967","43"],["1968","17"],["1969","149"],["1970","134"],["1971","319"],["1972","506"],["1973","909"],["1974","399"],["1975","494"],["1976","806"],["1977","748"],["1978","965"],["1979","706"],["1980","1851"],["1981","1203"],["1982","1346"],["1983","1429"],["1984","1120"],["1985","631"],["1986","1204"],["1987","1590"],["1988","1179"],["1989","2344"],["1990","2131"],["1991","1536"],["1992","1999"],["1993","1732"],["1994","1498"],["1995","2168"],["1996","1734"],["1997","2051"],["1998","1943"],["1999","2132"],["2000","1818"],["2001","2073"],["2002","1922"],["2003","1396"],["2004","2077"],["2005","2445"],["2006","1969"],["2007","1551"],["2008","1292"]]

How to pronounce asthenosphere?

1. Alex

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   Daniel

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   Mia

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How to say asthenosphere in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of asthenosphere in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of asthenosphere in Pythagorean Numerology is: 9

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=asthenosphere
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Asthenosphere
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Asthenosphere
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=asthenosphere
6. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=asthenosphere