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Format
Article Type
Journal
Publisher
Section
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Africa
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Central Africa
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Central African Republic (1)
-
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East Africa
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Kenya (1)
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Tanzania (1)
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Mozambique Belt (1)
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Southern Africa
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Kaapvaal Craton (3)
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South Africa
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Free State South Africa (1)
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-
-
West Africa
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Guinea (1)
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-
-
Arctic region
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Greenland
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Isua Belt (1)
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West Greenland (1)
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-
-
Asia
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Far East
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China
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North China Platform (1)
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Indian Peninsula
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India
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Andhra Pradesh India (1)
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Deccan Plateau (1)
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Dharwar Craton (1)
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Middle East
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Dead Sea (1)
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Dead Sea Rift (1)
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Israel
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Negev (1)
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Syria (1)
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Australasia
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Australia
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South Australia (1)
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Western Australia
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Pilbara (1)
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Pilbara Craton (1)
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Yilgarn Craton (1)
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Papua New Guinea
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New Britain (1)
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Canada
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Eastern Canada
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Baffin Island (1)
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Nunavut
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Baffin Island (1)
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Western Canada
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Northwest Territories (1)
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Cascade Range (1)
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Central America
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Nicaragua (1)
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Coast Ranges (1)
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East Pacific Ocean Islands
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Hawaii (1)
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Europe
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Alps
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Piedmont Alps
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Dora Maira Massif (1)
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Western Alps
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Cottian Alps
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Dora Maira Massif (1)
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-
-
-
Southern Europe
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Italy
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Piemonte Italy
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Dora Maira Massif (1)
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-
-
-
Western Europe
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Cottian Alps
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Dora Maira Massif (1)
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Scandinavia
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Norway (1)
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Jack Hills (1)
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North America
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Canadian Shield
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Slave Province (1)
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Oceania
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Polynesia
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Hawaii (1)
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-
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Pacific Ocean
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East Pacific
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East Pacific Rise (1)
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Northeast Pacific
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Siqueiros fracture zone (1)
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Southeast Pacific
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Tonga Trench (1)
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-
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North Pacific
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Northeast Pacific
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Siqueiros fracture zone (1)
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-
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South Pacific
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Southeast Pacific
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Tonga Trench (1)
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Peninsular Ranges (1)
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Sierra Nevada (1)
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South America
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Brazil
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Mato Grosso Brazil (4)
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Chile
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Atacama Desert (1)
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United States
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California
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Southern California (1)
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Transverse Ranges (1)
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Eastern U.S. (1)
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Hawaii (1)
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New Mexico
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Dona Ana County New Mexico
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Kilbourne Hole (1)
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Washington (1)
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-
-
commodities
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aggregate (1)
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diamond deposits (2)
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glass materials (4)
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metal ores
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rare earth deposits (1)
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-
-
elements, isotopes
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carbon
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C-13 (1)
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C-13/C-12 (3)
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-
chemical elements (1)
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chemical ratios (1)
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halogens
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chlorine (1)
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fluorine (2)
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-
hydrogen (18)
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incompatible elements (1)
-
isotope ratios (12)
-
isotopes
-
radioactive isotopes
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Ar-40/Ar-39 (1)
-
-
stable isotopes
-
Ar-40/Ar-39 (1)
-
C-13 (1)
-
C-13/C-12 (3)
-
Fe-56/Fe-54 (1)
-
Fe-57 (1)
-
Fe-57/Fe-54 (1)
-
Hf-177/Hf-176 (1)
-
N-15/N-14 (2)
-
Nd-142 (1)
-
Nd-144/Nd-143 (1)
-
O-18/O-16 (1)
-
Pb-207/Pb-206 (1)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (1)
-
-
-
large-ion lithophile elements (1)
-
metals
-
actinides
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californium (1)
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thorium (2)
-
uranium (1)
-
-
alkali metals
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lithium (2)
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potassium (1)
-
sodium (4)
-
-
alkaline earth metals
-
calcium (3)
-
magnesium (4)
-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
aluminum (9)
-
chromium (2)
-
cobalt (1)
-
hafnium
-
Hf-177/Hf-176 (1)
-
-
iron
-
Fe-56/Fe-54 (1)
-
Fe-57 (1)
-
Fe-57/Fe-54 (1)
-
ferric iron (15)
-
ferrous iron (12)
-
-
lead
-
Pb-207/Pb-206 (1)
-
-
nickel (3)
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niobium (3)
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platinum group
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palladium (1)
-
-
rare earths
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cerium (3)
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lanthanum (1)
-
neodymium
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Nd-142 (1)
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Nd-144/Nd-143 (1)
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-
praseodymium (1)
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scandium (1)
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-
titanium (1)
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vanadium (1)
-
zirconium (1)
-
-
nitrogen
-
N-15/N-14 (2)
-
-
noble gases
-
argon
-
Ar-40/Ar-39 (1)
-
-
-
oxygen
-
O-18/O-16 (1)
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-
sulfur
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S-34/S-32 (1)
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-
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geochronology methods
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(U-Th)/He (1)
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Ar/Ar (1)
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Pb/Pb (1)
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Rb/Sr (1)
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Re/Os (1)
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Sm/Nd (2)
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U/Pb (4)
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geologic age
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Cenozoic (1)
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Mesozoic
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Cretaceous (1)
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Triassic
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Lower Triassic (1)
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-
-
Paleozoic
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Permian (1)
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Phanerozoic (1)
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Precambrian
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Archean
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Eoarchean (1)
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-
Hadean (3)
-
upper Precambrian
-
Proterozoic
-
Great Oxidation Event (1)
-
Mesoproterozoic (1)
-
Neoproterozoic (1)
-
-
-
-
-
igneous rocks
-
igneous rocks
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carbonatites (4)
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kimberlite (6)
-
picrite (1)
-
plutonic rocks
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anorthosite (1)
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lamprophyres (1)
-
ultramafics
-
chromitite (2)
-
peridotites
-
harzburgite (1)
-
spinel lherzolite (1)
-
-
pyroxenite
-
websterite (2)
-
-
-
-
volcanic rocks
-
basalts
-
flood basalts (1)
-
mid-ocean ridge basalts (5)
-
ocean-island basalts (1)
-
-
-
-
ophiolite (1)
-
pyrolite (4)
-
-
metamorphic rocks
-
metamorphic rocks
-
eclogite (8)
-
granulites (2)
-
impactites (1)
-
metaigneous rocks
-
metabasalt (1)
-
-
schists
-
greenstone (1)
-
-
-
ophiolite (1)
-
-
meteorites
-
meteorites
-
Dhofar Meteorites (1)
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iron meteorites (1)
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Northwest Africa Meteorites (2)
-
stony irons (1)
-
stony meteorites
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achondrites
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angrite (1)
-
Martian meteorites
-
SNC Meteorites
-
shergottite
-
Shergotty Meteorite (1)
-
Zagami Meteorite (1)
-
-
-
-
-
chondrites
-
carbonaceous chondrites
-
CB chondrites (1)
-
-
enstatite chondrites (1)
-
ordinary chondrites
-
L chondrites (5)
-
-
-
-
-
-
minerals
-
alloys
-
carbides
-
moissanite (2)
-
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nitrides (2)
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phosphides
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schreibersite (1)
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silicides (1)
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-
arsenides
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cobaltite (1)
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skutterudite (1)
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-
borates
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ludwigite (1)
-
-
carbonates
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aragonite (1)
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dolomite (1)
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magnesite (1)
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siderite (3)
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-
halides
-
chlorides (1)
-
fluorides
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neighborite (1)
-
-
-
hydrates (4)
-
minerals (3)
-
native elements
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diamond (27)
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graphite (3)
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oxides
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aluminum oxides (2)
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bayerite (1)
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boehmite (1)
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brucite (1)
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chromite (3)
-
corundum (2)
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diaspore (1)
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ferropericlase (18)
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germanates (1)
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gibbsite (1)
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hibonite (1)
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hollandite (1)
-
hydroxides
-
aluminum hydroxides (5)
-
iron hydroxides (2)
-
oxyhydroxides (1)
-
-
ilmenite (1)
-
iron oxides (7)
-
magnesioferrite (2)
-
magnesium oxides (2)
-
magnetite (2)
-
niobates
-
loparite (3)
-
-
periclase (9)
-
perovskite (11)
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rutile (1)
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spinel (5)
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spinel group (1)
-
titanium oxides (2)
-
wustite (4)
-
-
phosphates
-
apatite (3)
-
fluorapatite (1)
-
merrillite (2)
-
whitlockite (1)
-
-
silicates
-
aluminosilicates
-
maskelynite (2)
-
-
chain silicates
-
pyroxene group
-
clinopyroxene
-
chrome diopside (1)
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clinoenstatite (1)
-
diopside (1)
-
hedenbergite (1)
-
jadeite (3)
-
omphacite (2)
-
pigeonite (1)
-
-
orthopyroxene
-
enstatite (3)
-
-
-
-
framework silicates
-
feldspar group
-
plagioclase
-
albite (1)
-
anorthite (1)
-
-
-
silica minerals
-
coesite (3)
-
quartz (1)
-
stishovite (11)
-
-
zeolite group (1)
-
-
magnesian silicates (8)
-
orthosilicates
-
nesosilicates
-
garnet group
-
almandine (4)
-
andradite (1)
-
grossular (2)
-
majorite (10)
-
pyrope (5)
-
spessartine (1)
-
-
olivine group
-
fayalite (1)
-
forsterite (6)
-
olivine (15)
-
peridot (1)
-
ringwoodite (19)
-
wadsleyite (18)
-
-
zircon group
-
zircon (1)
-
-
-
sorosilicates
-
epidote group
-
zoisite (1)
-
-
lawsonite (1)
-
-
-
sheet silicates
-
mica group
-
phengite (1)
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phlogopite (1)
-
-
serpentine group
-
serpentine (1)
-
-
-
-
sulfides
-
alabandite (1)
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alloclasite (1)
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cobaltite (1)
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galena (1)
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greenockite (1)
-
mackinawite (1)
-
marcasite (1)
-
pyrite (3)
-
sphalerite (1)
-
wurtzite (1)
-
-
-
Primary terms
-
absolute age (3)
-
Africa
-
Central Africa
-
Central African Republic (1)
-
-
East Africa
-
Kenya (1)
-
Tanzania (1)
-
-
Mozambique Belt (1)
-
Southern Africa
-
Kaapvaal Craton (3)
-
South Africa
-
Free State South Africa (1)
-
-
-
West Africa
-
Guinea (1)
-
-
-
Arctic region
-
Greenland
-
Isua Belt (1)
-
West Greenland (1)
-
-
-
Asia
-
Far East
-
China
-
North China Platform (1)
-
-
-
Indian Peninsula
-
India
-
Andhra Pradesh India (1)
-
Deccan Plateau (1)
-
Dharwar Craton (1)
-
-
-
Middle East
-
Dead Sea (1)
-
Dead Sea Rift (1)
-
Israel
-
Negev (1)
-
-
Syria (1)
-
-
-
asteroids (4)
-
atmosphere (2)
-
Australasia
-
Australia
-
South Australia (1)
-
Western Australia
-
Pilbara (1)
-
Pilbara Craton (1)
-
Yilgarn Craton (1)
-
-
-
Papua New Guinea
-
New Britain (1)
-
-
-
Canada
-
Eastern Canada
-
Baffin Island (1)
-
-
Nunavut
-
Baffin Island (1)
-
-
Western Canada
-
Northwest Territories (1)
-
-
-
carbon
-
C-13 (1)
-
C-13/C-12 (3)
-
-
catalogs (1)
-
Cenozoic (1)
-
Central America
-
Nicaragua (1)
-
-
chemical analysis (1)
-
core (11)
-
crust (10)
-
crystal chemistry (16)
-
crystal structure (40)
-
crystallography (3)
-
data processing (2)
-
deformation (4)
-
diagenesis (1)
-
diamond deposits (2)
-
Earth (3)
-
East Pacific Ocean Islands
-
Hawaii (1)
-
-
electron microscopy (1)
-
Europe
-
Alps
-
Piedmont Alps
-
Dora Maira Massif (1)
-
-
Western Alps
-
Cottian Alps
-
Dora Maira Massif (1)
-
-
-
-
Southern Europe
-
Italy
-
Piemonte Italy
-
Dora Maira Massif (1)
-
-
-
-
Western Europe
-
Cottian Alps
-
Dora Maira Massif (1)
-
-
Scandinavia
-
Norway (1)
-
-
-
-
faults (1)
-
geochemistry (5)
-
geochronology (1)
-
geophysical methods (6)
-
ground water (1)
-
heat flow (6)
-
hydrogen (18)
-
hydrology (1)
-
igneous rocks
-
carbonatites (4)
-
kimberlite (6)
-
picrite (1)
-
plutonic rocks
-
anorthosite (1)
-
lamprophyres (1)
-
ultramafics
-
chromitite (2)
-
peridotites
-
harzburgite (1)
-
spinel lherzolite (1)
-
-
pyroxenite
-
websterite (2)
-
-
-
-
volcanic rocks
-
basalts
-
flood basalts (1)
-
mid-ocean ridge basalts (5)
-
ocean-island basalts (1)
-
-
-
-
inclusions
-
fluid inclusions (4)
-
-
interplanetary space (1)
-
intrusions (5)
-
isotopes
-
radioactive isotopes
-
Ar-40/Ar-39 (1)
-
-
stable isotopes
-
Ar-40/Ar-39 (1)
-
C-13 (1)
-
C-13/C-12 (3)
-
Fe-56/Fe-54 (1)
-
Fe-57 (1)
-
Fe-57/Fe-54 (1)
-
Hf-177/Hf-176 (1)
-
N-15/N-14 (2)
-
Nd-142 (1)
-
Nd-144/Nd-143 (1)
-
O-18/O-16 (1)
-
Pb-207/Pb-206 (1)
-
S-34/S-32 (1)
-
Sr-87/Sr-86 (1)
-
-
-
magmas (10)
-
mantle (120)
-
Mesozoic
-
Cretaceous (1)
-
Triassic
-
Lower Triassic (1)
-
-
-
metal ores
-
rare earth deposits (1)
-
-
metals
-
actinides
-
californium (1)
-
thorium (2)
-
uranium (1)
-
-
alkali metals
-
lithium (2)
-
potassium (1)
-
sodium (4)
-
-
alkaline earth metals
-
calcium (3)
-
magnesium (4)
-
strontium
-
Sr-87/Sr-86 (1)
-
-
-
aluminum (9)
-
chromium (2)
-
cobalt (1)
-
hafnium
-
Hf-177/Hf-176 (1)
-
-
iron
-
Fe-56/Fe-54 (1)
-
Fe-57 (1)
-
Fe-57/Fe-54 (1)
-
ferric iron (15)
-
ferrous iron (12)
-
-
lead
-
Pb-207/Pb-206 (1)
-
-
nickel (3)
-
niobium (3)
-
platinum group
-
palladium (1)
-
-
rare earths
-
cerium (3)
-
lanthanum (1)
-
neodymium
-
Nd-142 (1)
-
Nd-144/Nd-143 (1)
-
-
praseodymium (1)
-
scandium (1)
-
-
titanium (1)
-
vanadium (1)
-
zirconium (1)
-
-
metamorphic rocks
-
eclogite (8)
-
granulites (2)
-
impactites (1)
-
metaigneous rocks
-
metabasalt (1)
-
-
schists
-
greenstone (1)
-
-
-
metamorphism (17)
-
metasomatism (3)
-
meteorites
-
Dhofar Meteorites (1)
-
iron meteorites (1)
-
Northwest Africa Meteorites (2)
-
stony irons (1)
-
stony meteorites
-
achondrites
-
angrite (1)
-
Martian meteorites
-
SNC Meteorites
-
shergottite
-
Shergotty Meteorite (1)
-
Zagami Meteorite (1)
-
-
-
-
-
chondrites
-
carbonaceous chondrites
-
CB chondrites (1)
-
-
enstatite chondrites (1)
-
ordinary chondrites
-
L chondrites (5)
-
-
-
-
-
mineralogy (1)
-
minerals (3)
-
Moon (2)
-
nitrogen
-
N-15/N-14 (2)
-
-
noble gases
-
argon
-
Ar-40/Ar-39 (1)
-
-
-
North America
-
Canadian Shield
-
Slave Province (1)
-
-
-
ocean floors (1)
-
Oceania
-
Polynesia
-
Hawaii (1)
-
-
-
oxygen
-
O-18/O-16 (1)
-
-
Pacific Ocean
-
East Pacific
-
East Pacific Rise (1)
-
Northeast Pacific
-
Siqueiros fracture zone (1)
-
-
Southeast Pacific
-
Tonga Trench (1)
-
-
-
North Pacific
-
Northeast Pacific
-
Siqueiros fracture zone (1)
-
-
-
South Pacific
-
Southeast Pacific
-
Tonga Trench (1)
-
-
-
-
Paleozoic
-
Permian (1)
-
-
paragenesis (4)
-
Phanerozoic (1)
-
phase equilibria (15)
-
plate tectonics (14)
-
Precambrian
-
Archean
-
Eoarchean (1)
-
-
Hadean (3)
-
upper Precambrian
-
Proterozoic
-
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1-20 OF 316 RESULTS FOR
bridgmanite
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Journal Article
Hydrogen incorporation mechanism in the lower-mantle bridgmanite
Narangoo Purevjav, Naotaka Tomioka, Shigeru Yamashita, Keiji Shinoda, Sachio Kobayashi, Kenji Shimizu, Motoo Ito, Suyu Fu, Jesse Gu, Christina Hoffmann, Jung-Fu Lin, Takuo Okuchi
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 June 2024
American Mineralogist (2024) 109 (6): 1036–1044.
...Narangoo Purevjav; Naotaka Tomioka; Shigeru Yamashita; Keiji Shinoda; Sachio Kobayashi; Kenji Shimizu; Motoo Ito; Suyu Fu; Jesse Gu; Christina Hoffmann; Jung-Fu Lin; Takuo Okuchi Abstract Bridgmanite, the most abundant mineral in the lower mantle, can play an essential role in deep-Earth hydrogen...
Includes: Supplemental Content
Journal Article
Single-crystal X-ray diffraction on the structure of (Al,Fe)-bearing bridgmanite in the lower mantle
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 May 2024
American Mineralogist (2024) 109 (5): 872–881.
...Suyu Fu; Stella Chariton; Yanyao Zhang; Takuo Okuchi; Vitali B. Prakapenka; Jung-Fu Lin Abstract Here we have performed single-crystal X-ray diffraction (SCXRD) experiments on two high-quality crystal platelets of (Al,Fe)-bearing bridgmanite (Mg 0.88 Fe 0.065 3 + Fe 0.035 2 + Al 0.03 )(Al 0.11 Si...
Includes: Supplemental Content
Journal Article
Single-crystal elasticity of (Al,Fe)-bearing bridgmanite up to 82 GPa
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 03 April 2023
American Mineralogist (2023) 108 (4): 719–730.
... to the lack of single-crystal elastic moduli ( C ij ) and aggregate sound velocities of (Al,Fe)-bearing bridgmanite, the most abundant mineral of the planet, at the lower mantle pressure-temperature ( P-T ) conditions. Here we report single-crystal C ij of (Al,Fe)-bearing bridgmanite, Mg 0.88 Fe 0.1 Al 0.14...
Journal Article
Effects of composition and pressure on electronic states of iron in bridgmanite
Susannah M. Dorfman, Vasily Potapkin, Mingda Lv, Eran Greenberg, Ilya Kupenko, Aleksandr I. Chumakov, Wenli Bi, E. Ercan Alp, Jiachao Liu, Arnaud Magrez, Siân E. Dutton, Robert J. Cava, Catherine A. McCammon, Philippe Gillet
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 July 2020
American Mineralogist (2020) 105 (7): 1030–1039.
..., (Mg,Fe,Al)(Fe,Al,Si)O 3 bridgmanite, control physical properties of the mantle including density, elasticity, and electrical and thermal conductivity. However, the determination of electronic states of iron has been controversial, in part due to different interpretations of Mössbauer spectroscopy...
Journal Article
The spin state of Fe 3+ in lower mantle bridgmanite
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 June 2017
American Mineralogist (2017) 102 (6): 1263–1269.
...Ryosuke Sinmyo; Catherine Mccammon; Leonid Dubrovinsky Abstract Iron- and aluminum-bearing MgSiO 3 bridgmanite is the most abundant mineral in the Earth's interior; hence its crystal chemistry is fundamental to expanding our knowledge of the deep Earth and its evolution. In this study, the valence...
Journal Article
Equation of state and hyperfine parameters of high-spin bridgmanite in the Earth’s lower mantle by synchrotron X-ray diffraction and Mössbauer spectroscopy
Zhu Mao, Fan Wang, Jung-Fu Lin, Suyu Fu, Jing Yang, Xiang Wu, Takuo Okuchi, Naotaka Tomioka, Vitali B. Prakapenka, Yuming Xiao, Paul Chow
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 February 2017
American Mineralogist (2017) 102 (2): 357–368.
...Zhu Mao; Fan Wang; Jung-Fu Lin; Suyu Fu; Jing Yang; Xiang Wu; Takuo Okuchi; Naotaka Tomioka; Vitali B. Prakapenka; Yuming Xiao; Paul Chow Abstract In this study, we performed synchrotron X-ray diffraction (XRD) and Mössbauer spectroscopy (SMS) measurements on two single-crystal bridgmanite samples...
Journal Article
Bridgmanite-like crystal structure in the novel Ti-rich phase synthesized at transition zone condition
Luca Bindi, Ekaterina Sirotkina, Andrey V. Bobrov, Michael J. Walter, Dmitry Pushcharovsky, Tetsuo Irifune
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 January 2017
American Mineralogist (2017) 102 (1): 227–230.
...Luca Bindi; Ekaterina Sirotkina; Andrey V. Bobrov; Michael J. Walter; Dmitry Pushcharovsky; Tetsuo Irifune Abstract A new Ti-bearing bridgmanite-like phase with a threefold commensurate superstructure of the ideal MgSiO 3 -perovskite structure was observed in a [Mg 5/6 Al 1/6 ][Si 1/2 Ti 1/3 Al 1/6...
Journal Article
Incorporation of Fe 2+ and Fe 3+ in bridgmanite during magma ocean crystallization
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 July 2016
American Mineralogist (2016) 101 (7): 1560–1570.
...Asmaa Boujibar; Nathalie Bolfan-Casanova; Denis Andrault; M. Ali Bouhifd; Nicolas Trcera Abstract Using large volume press, samples of bridgmanites (Bg) in equilibrium with both silicate melt and liquid Fe-alloy were synthesized to replicate the early period of core-mantle segregation and magma...
Journal Article
Composition dependence of spin transition in (Mg,Fe)SiO 3 bridgmanite
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 October 2015
American Mineralogist (2015) 100 (10): 2246–2253.
...Susannah M. Dorfman; James Badro; Jean-Pascal Rueff; Paul Chow; Yuming Xiao; Philippe Gillet Abstract Spin transitions in (Mg,Fe)SiO 3 bridgmanite have important implications for the chemistry and dynamics of Earth’s lower mantle, but have been complex to characterize in experiments. We examine...
Journal Article
Recoil-free fractions of iron in aluminous bridgmanite from temperature-dependent Mössbauer spectra
Journal: American Mineralogist
Publisher: Mineralogical Society of America
Published: 01 August 2015
American Mineralogist (2015) 100 (8-9): 1978–1984.
...Jiachao Liu; Bjorn Mysen; Yingwei Fei; Jie Li Abstract Aluminous bridgmanite (Al-Bm) is the dominant phase in the Earth’s lower mantle. In this study, the Mössbauer spectra of an Al-Bm sample Mg 0.868 Fe 0.087 Si 0.944 Al 0.101 O 2.994 were recorded from 65 to 300 K at 1 bar. The temperature...
Image
The crystal structure of (Fe,Al)-bearing bridgmanite with an orthorhombic s...
Published: 01 June 2024
Figure 1. The crystal structure of (Fe,Al)-bearing bridgmanite with an orthorhombic symmetry (space group Pbnm ). The bridgmanite structure consists of A-site cations, B-site cations, and oxygen anions with an ABO 3 perovskite-type framework. In the illustration, the A sites are visible
Image
Synthesis and characterization of the (Fe,Al)-bearing bridgmanite crystals....
Published: 01 June 2024
Figure 2. Synthesis and characterization of the (Fe,Al)-bearing bridgmanite crystals. All scale bars shown with black color are 100 μm in length. ( a ) A stereo microscope image of the recovered bridgmanite crystals with dark-brownish color and subhedral to euhedral forms. ( b ) A micro-focused X
Image
TEM/STEM micrographs of the (Fe,Al)-bearing bridgmanite crystal. ( a ) A br...
Published: 01 June 2024
Figure 3. TEM/STEM micrographs of the (Fe,Al)-bearing bridgmanite crystal. ( a ) A bright-field TEM image of a representative thin foil, which shows homogeneous crystal without visible inclusions or defects. ( b ) A bright-field STEM image showing the lattice fringes of (001). ( c ) A Fourier
Image
Results of hydrogen concentration analysis for the bridgmanite (Bdg) crysta...
Published: 01 June 2024
Figure 5. Results of hydrogen concentration analysis for the bridgmanite (Bdg) crystals by SIMS. The solid and broken lines show correlations between 1 H/ 30 Si count ratios and water concentrations using natural amphibole (Amp) and basaltic glass (EPR-3G) as the standards, respectively. San
Image
Sensitivity analyses of single-crystal bridgmanite platelets for derivation...
Published: 03 April 2023
Figure 1. Sensitivity analyses of single-crystal bridgmanite platelets for derivations of its elastic moduli. ( a and b ) Platelets with crystallographic orientations of (–0.50, 0.05, –0.86) and (0.65, –0.59, 0.48), respectively. The calculations follow literature studies ( Fu et al. 2019b
Image
Adiabatic bulk and shear moduli of bridgmanite with different Fe and Al con...
Published: 03 April 2023
Figure 6. Adiabatic bulk and shear moduli of bridgmanite with different Fe and Al contents at high pressure and 300 K. ( a and b ) K S and μ, respectively. Solid red circles are from the single-crystal Fe10-Al14-Bgm data in this study and other symbols are experimental data from
Image
Modeled velocity profiles of bridgmanite at lower-mantle relevant pressure-...
Published: 03 April 2023
Figure 7. Modeled velocity profiles of bridgmanite at lower-mantle relevant pressure-temperature conditions. Using the quantitative Fe and Al effects on elastic properties of bridgmanite, we modeled ν P and ν S of three bridgmanite compositions, MgSiO 3 end-member (black lines), Fe5-Al5-Bgm
Image
Solid solubility of Ca in bridgmanite as a function of mixing temperature a...
in Solid solution of CaSiO 3 and MgSiO 3 perovskites in the lower mantle: The role of ferrous iron
> American Mineralogist
Published: 01 March 2023
Figure 4. Solid solubility of Ca in bridgmanite as a function of mixing temperature at 125 GPa. The blue line represents the univariant Fe concentration with light blue, green, yellow, red, and purple representing 0, 1, 6.25, 12.5, and 25%, respectively. (Color online.)
Image
Mg# versus NiO (A), Al 2 O 3 (B), and CaO (C) of former bridgmanite (brd) ...
Published: 20 January 2023
Figure 1. Mg# versus NiO (A), Al 2 O 3 (B), and CaO (C) of former bridgmanite (brd) inclusions from Koffiefontein mine, South Africa (red diamonds), and lower-mantle diamonds globally (white diamonds; Walter et al., 2022 ). The field of experimental bridgmanite in primitive mantle coexisting
Image
Composition of orthopyroxene (opx) (retrogressed bridgmanite [brd]) and fer...
Published: 20 January 2023
Figure 2. Composition of orthopyroxene (opx) (retrogressed bridgmanite [brd]) and ferropericlase (fper) inclusions co-occurring in sublithospheric diamonds projected onto the Mg-Fe-Si ternary diagram (molar). Inclusions are shown as diamonds and color coded by locality. Compilation
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