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- W2034227618 abstract "Komatiites are rare ultramafic lavas that were produced most commonly during the Archean and Early Proterozoic and less frequently in the Phanerozoic. These magmas provide a record of the thermal and chemical characteristics of the upper mantle through time. The most widely cited interpretation is that komatiites were produced in a plume environment and record high mantle temperatures and deep melting pressures. The decline in their abundance from the Archean to the Phanerozoic has been interpreted as primary evidence for secular cooling (up to 500°C) of the mantle. In the last decade new evidence from petrology, geochemistry and field investigations has reopened the question of the conditions of mantle melting preserved by komatiites. An alternative proposal has been rekindled: that komatiites are produced by hydrous melting at shallow mantle depths in a subduction environment. This alternative interpretation predicts that the Archean mantle was only slightly (∼100°C) hotter than at present and implicates subduction as a process that operated in the Archean. Many thermal evolution and chemical differentiation models of the young Earth use the plume origin of komatiites as a central theme in their model. Therefore, this controversy over the mechanism of komatiite generation has the potential to modify widely accepted views of the Archean Earth and its subsequent evolution. This paper briefly reviews some of the pros and cons of the plume and subduction zone models and recounts other hypotheses that have been proposed for komatiites. We suggest critical tests that will improve our understanding of komatiites and allow us to better integrate the story recorded in komatiites into our view of early Earth evolution." @default.
- W2034227618 created "2016-06-24" @default.
- W2034227618 creator A5029745636 @default.
- W2034227618 creator A5064279954 @default.
- W2034227618 date "2004-03-01" @default.
- W2034227618 modified "2023-09-25" @default.
- W2034227618 title "Thermal evolution of the Earth as recorded by komatiites" @default.
- W2034227618 cites W12790480 @default.
- W2034227618 cites W1592992906 @default.
- W2034227618 cites W1615737483 @default.
- W2034227618 cites W1964175282 @default.
- W2034227618 cites W1964865374 @default.
- W2034227618 cites W1966161922 @default.
- W2034227618 cites W1968234317 @default.
- W2034227618 cites W1969536029 @default.
- W2034227618 cites W1972445948 @default.
- W2034227618 cites W1973278816 @default.
- W2034227618 cites W1974118247 @default.
- W2034227618 cites W1982501303 @default.
- W2034227618 cites W1984498477 @default.
- W2034227618 cites W1985623527 @default.
- W2034227618 cites W1985728350 @default.
- W2034227618 cites W1986739254 @default.
- W2034227618 cites W1987659983 @default.
- W2034227618 cites W1988451633 @default.
- W2034227618 cites W1990814837 @default.
- W2034227618 cites W1991848112 @default.
- W2034227618 cites W1993052821 @default.
- W2034227618 cites W1995318237 @default.
- W2034227618 cites W2000789282 @default.
- W2034227618 cites W2003033703 @default.
- W2034227618 cites W2005426441 @default.
- W2034227618 cites W2005471856 @default.
- W2034227618 cites W2006465451 @default.
- W2034227618 cites W2006783184 @default.
- W2034227618 cites W2007684610 @default.
- W2034227618 cites W2009643804 @default.
- W2034227618 cites W2010614316 @default.
- W2034227618 cites W2011644126 @default.
- W2034227618 cites W2015697995 @default.
- W2034227618 cites W2015874123 @default.
- W2034227618 cites W2018122760 @default.
- W2034227618 cites W2019602420 @default.
- W2034227618 cites W2025671512 @default.
- W2034227618 cites W2027347084 @default.
- W2034227618 cites W2028020826 @default.
- W2034227618 cites W2028468411 @default.
- W2034227618 cites W2035595872 @default.
- W2034227618 cites W2042904816 @default.
- W2034227618 cites W2043221300 @default.
- W2034227618 cites W2043819754 @default.
- W2034227618 cites W2044466725 @default.
- W2034227618 cites W2047519592 @default.
- W2034227618 cites W2050426306 @default.
- W2034227618 cites W2051686557 @default.
- W2034227618 cites W2052473341 @default.
- W2034227618 cites W2055285036 @default.
- W2034227618 cites W2057799071 @default.
- W2034227618 cites W2059310244 @default.
- W2034227618 cites W2060795343 @default.
- W2034227618 cites W2062769982 @default.
- W2034227618 cites W2064665453 @default.
- W2034227618 cites W2074579635 @default.
- W2034227618 cites W2076342957 @default.
- W2034227618 cites W2076757202 @default.
- W2034227618 cites W2078640495 @default.
- W2034227618 cites W2085177081 @default.
- W2034227618 cites W2089889616 @default.
- W2034227618 cites W2090879284 @default.
- W2034227618 cites W2092052615 @default.
- W2034227618 cites W2094997400 @default.
- W2034227618 cites W2095120503 @default.
- W2034227618 cites W2102584485 @default.
- W2034227618 cites W2109479359 @default.
- W2034227618 cites W2120631528 @default.
- W2034227618 cites W2137662082 @default.
- W2034227618 cites W2139755763 @default.
- W2034227618 cites W2145552866 @default.
- W2034227618 cites W2154589522 @default.
- W2034227618 cites W2164997339 @default.
- W2034227618 cites W2326202524 @default.
- W2034227618 cites W2330525695 @default.
- W2034227618 cites W2419400750 @default.
- W2034227618 cites W2483214844 @default.
- W2034227618 cites W2579656065 @default.
- W2034227618 cites W2997231890 @default.
- W2034227618 cites W3207805732 @default.
- W2034227618 doi "https://doi.org/10.1016/s0012-821x(04)00002-0" @default.
- W2034227618 hasPublicationYear "2004" @default.
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