 | | Journal (article/letter/editorial) | | polymorph of MgFe2O4 in shocked gneiss from the Xiuyan crater in China Ming CHEN 1,2* , Jinfu SHU3, Xiande XIE2...Chinese Academy of Sciences, 510640 Guangzhou, China 2 Key Laboratory of Mineralogy and Metallogeny,...Chinese Academy of Sciences, 510640 Guangzhou, China 3 Center for High Pressure Science and Technology...Technology Advanced Research, 201203 Shanghai, China 4 Guangdong Provincial Key Laboratory of Mineral Physics...Chinese Academy of Sciences, 510640 Guangzhou, China * Corresponding author. E-mail: mchen@gig.ac.cn |  | | Report (issue) | | (1) 75.12 11.93 11.95 1.00 100.00 (1) Xiuyan impact crater, China; normalized average EDS analysis supplemented...Polymorphism & Series: A post-spinel polymorph of magnesioferrite. Occurrence: Formed from subsolidus decomposition...mixture of magnesioferrite, maohokite, calcite, diamond. Distribution: From the Xiuyan impact crater, northern...northern Liaodong Peninsula, China. Name: Honors Hokwang Mao (b. 1941) Geophysical Laboratory, Carnegie Institution...Geochemistry, Chinese Academy of Sciences, Tianhe, China (XY-shock gneiss 290). References: (1) Chen, M. |  | | Journal (article/letter/editorial) | | Sciences, Tianhe, Kehua Street 511, Guangzhou 510640, China, catalogue number XY-shock gneiss 290 How to cite:...Rock quarry, Granite Mountain, Little Rock, Pulaski Co., Arkansas, USA (34°41′27″N, 92°17′17″W) Anthony...No. 2017-047 Maohokite MgFe2O4 Xiuyan crater, Liaodong Peninsula, China (40° 21′55″N, 123°27′34″E) Ming...Tan *E-mail: mchen@gig.ac.cn A polymorph of magnesioferrite Orthorhombic: Pnma a = 8.907(1), b = 9.937(8)...Sulfur Springs Draw, 21 miles S-SE of Lamesa, Martin Co., Texas, USA (32.44203N, 101.87003W) Tyler Spano |  | | Journal (article/letter/editorial) | | Rock quarry, Granite Mountain, Little Rock, Pulaski Co., Arkansas, USA (34°410 2700 N, 92°170 1700 W) Anthony...No. 2017-047 Maohokite MgFe2O4 Xiuyan crater, Liaodong Peninsula, China (40°210 5500 N, 123°270 3400 E)...Tan *E-mail: mchen@gig.ac.cn A polymorph of magnesioferrite Orthorhombic: Pnma a = 8.907(1), b = 9.937(8)...Sciences, Tianhe, Kehua Street 511, Guangzhou 510640, China, catalogue number XY-shock gneiss 290 How to cite:...Sulfur Springs Draw, 21 miles S-SE of Lamesa, Martin Co., Texas, USA (32.44203N, 101.87933W) Tyler Spano |  | Agrosì, Giovanna, Tempesta, Gioacchino, Mele, Daniela, Caggiani, Maria Cristina, Mangone, Annarosa, Della Ventura, Giancarlo, Cestelli-Guidi, Mariangela, Allegretta, Ignazio, Hutchison, Mark T., Nimis, Paolo, Nestola, Fabrizio (2019) Multiphase inclusions associated with residual carbonate in a transition zone diamond from Juina (Brazil) Lithos, 350. 105279 doi:10.1016/j.lithos.2019.105279 | Journal (article/letter/editorial) | | ferropericlase–magnesiowüstite and locally exsolved magnesioferrite. FTIR maps, obtained integrating the band at...ferropericlase–magnesiowüstite and locally exsolved 39 magnesioferrite. FTIR maps, obtained integrating the band at...ferrite group, such as magnetite or 216 magnesioferrite (D’Ippolito et al., 2015). Detailed µ-Raman...Post-spinel polymorphs of chromite (xieite) and magnesioferrite (maohokite) were previously 266 found in...spinel/post-spinel transitions for endmember magnesioferrite, magnetite and 268 chromite occur at 20–25 |  | | Journal (article/letter/editorial) | | characterized carbon-phase from the Ries-impact crater (El Goresy and Donnay 1968) has a unit cell of...carbon-phase of unknown structure from the Popigai impact crater that also exhibits a very large unit cell. Lonsdaleite...metamorphic rocks from the Luobusha complex in Tibet, China. The cubic sphalerite-type structure of boron nitride...unambiguous. Brucite Brucite was reported along with magnesioferrite as lamellae in a periclase inclusion within...into brucite, and subsequently periclase + magnesioferrite as breakdown product of a former lower mantle |  | | Journal (article/letter/editorial) | | metallic Cu and CuFe (~85 wt.% Cu, 14 wt.% Fe ± < 1wt.% Co, Ni, S) alloys. The Aqueously Altered. MIL 07525...06100. Although the average Co/Ni ratio of metal nodules is nearly solar, Co and Ni are not correlated...chondrites were observed in coarse opaque rims, including Co-rich suessite, a Si-Fe-rich diaplectic glass region...containing variable amounts of Fe, Mg, Al, Ca, Ni, and Co in the A site, and extensive replacement of P in...Argentina. Introduction: A new possible impact crater was discovered during routine flights by Mr. Jorge |  | | Journal (article/letter/editorial) | | using a Deltech furnace with gaseous mixtures of CO and CO2 to control fO2 to IW-1. Experimental charges...relative to most chondrites but similar to some CVox, CO and CK chondrites suggests that the initial chondrite...was conducted on the EMP for Mg, Fe, Cr, Si, S, Na, Co, Ti, Al, P, Ni, Mn, and Ca at 20nA and 15kV, with...of Colorado Boulder, Geological Sciences, Boulder, CO 80309, USA, 3Department of Physics and Astronomy...inner solar system is based on models relating the crater densities of planetary surfaces to calibrated radiometric |  | | Journal (article/letter/editorial) | | was conducted on the EMP for Mg, Fe, Cr, Si, S, Na, Co, Ti, Al, P, Ni, Mn, and Ca at 20nA and 15kV, with...troilite (20-35wt% S), taenite (up to 64wt% Ni, 0.7wt% Co), and kamacite (7-8wt% Ni). Phases are distributed...collision was possible in case of spatial and temporal co-occurrence of Phaeton II's perihelion and Phaeton...that John's rock did not produce a typical impact crater. Instead, it formed the massive (>50 m3) canal...Tunguska catastrophe. The absence of classic impact crater in Tunguska is similar to several other cases when |  | | Journal (article/letter/editorial) | | Ge Rb Cs Se Te Sn Zn Ir Pt W Rh Pd Au Na Fe Ni Co Mo Ru Re Os -20 Mg Al Ca Ti Cr Mn -15 -20 K Li...Ir -5 5 Pt W Rh 0 Ru Re Os 5 Ti Cr Mn Fe Ni Co Mo Model error (%) Model error (%) 10 Mg Al Ca...[3]. However, this ratio of one assumes that all CO/CO2 was converted to CH4, freeing up O to form water...produced by the Acheson process below. SiO2 + C à SiC + CO at 2500 – 2700 K Silicon carbide prepared by this...olivine and reacted with carbon, producing SiC and CO. The temperature of the Acheson process at atmospheric |  | | Book | | collaboration with graduate students from the U. S., China and Russia, and postdoctoral colleagues from Australia...addition to his 1995 book (Figure 8), Orson also was a co-author, with Ed Schreiber and Naohiro Soga, of a...resonant ultrasound spectroscopy. Orson initially co-opted me to do library research for a review paper...represented topics of interest to Orson, who was a co-author on four of the papers [47]. Figure 10. Cont...and founded HPSTAR, a new research institute in China patterned after Carnegie’s Geophysical Laboratory |
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