86:. An unusually high iron content in one suite of diamonds has been associated with an origin from the lowermost mantle. Discrete ultralow-velocity zones in the deepest parts of the mantle, near the Earth's core, are thought to be blobs of ferropericlase, as seismic waves are significantly slowed as they pass through them, and ferropericlase is known to have this effect at the high pressures and temperatures found deep within the Earth's mantle. In May 2018, ferropericlase was shown to be anisotropic in specific ways in the high pressures of the lower mantle, and these anisotropies may help seismologists and geologists to confirm whether those ultra-low velocity zones are indeed ferropericlase, by passing seismic waves through them from various different directions and observing the exact amount of change in the velocity of those waves.
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Finkelstein, Gregory J.; Jackson, Jennifer M.; Said, Ayman; Alatas, Ahmet; Leu, Bogdan M.; Sturhahn, Wolfgang; Toellner, Thomas S. (18 May 2018).
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in iron in mantle minerals has been studied experimentally in ferropericlase. Samples are subject to the conditions of the lower mantle in a
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of the Earth, which makes it the second most abundant mineral phase in that region after silicate
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237:"Kopylova, M.G. 2006. Ferropericlase from the lowermost mantle and its geodynamic significance"
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338:"Researchers locate mantle's spin transition zone, leading to clues about earth's structure"
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Researchers locate mantle's spin transition zone, leading to clues about earth’s structure
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in iron occurs with increasing depth over a range from 1000 km to 2200 km.
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185:. In the literature, this mineral phase of the lower mantle is also often called
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Magnesium or iron oxide that mainly constitutes the lower mantle of the Earth
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Marcondes, Michel L.; Zheng, Fawei; Wentzcovitch, Renata M. (2020-09-25).
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262:"Strange Blobs Beneath Earth Could Be Remnants of an Ancient Magma Ocean"
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357:"Phonon dispersion throughout the iron spin crossover in ferropericlase"
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that is interpreted to be one of the main constituents of the Earth's
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287:"Strongly Anisotropic Magnesiowüstite in Earth's Lower Mantle"
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120:. Results indicate that the change from a high to low
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into a mixture of perovskite and ferropericlase and
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294:Journal of Geophysical Research: Solid Earth
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136:makes up about 20% of the volume of the
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110:and the spin-state is measured using
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78:. Ferropericlase has been found as
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464:. You can help Knowledge by
430:Ferropericlase on Mindat.org
154:of the mantle, the reaction
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51:with the chemical formula
526:Inorganic compound stubs
460:–related article is a
315:10.1029/2017jb015349
90:Spin transition zone
76:perovskite structure
70:), a magnesium/iron
383:2020PhRvB.102j4112M
306:2018JGRB..123.4740F
168:] ↔ (Mg,Fe)[SiO
61:silicate perovskite
417:2010-05-27 at the
108:diamond anvil cell
59:together with the
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361:Physical Review B
82:in a few natural
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128:Mantle abundance
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31:Ferropericlase
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241:the original
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209:Wollastonite
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172:] + (Mg,Fe)O
138:lower mantle
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118:spectroscopy
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57:lower mantle
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177:transforms
112:synchrotron
505:Categories
374:2003.12348
271:2018-10-01
247:2008-03-18
223:References
183:vice versa
145:(Mg,Fe)SiO
142:perovskite
122:spin state
80:inclusions
65:(Mg,Fe)SiO
511:Petrology
455:inorganic
399:214693280
324:2169-9313
266:Space.com
179:γ-olivine
100:electrons
98:state of
42:magnesium
458:compound
415:Archived
199:Ilmenite
193:See also
164:[SiO
158:γ–
134:(Mg,Fe)O
106:-heated
84:diamonds
72:silicate
53:(Mg,Fe)O
35:magnesio
379:Bibcode
302:Bibcode
160:(Mg,Fe)
74:with a
37:wüstite
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453:This
395:S2CID
369:arXiv
290:(PDF)
213:CaSiO
115:X-ray
104:laser
49:oxide
40:is a
462:stub
320:ISSN
96:spin
46:iron
387:doi
365:102
310:doi
298:123
33:or
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