干旱区生态环境知识资源中心(Arid): Metamorphism of four desert ureilites and luminescence spectroscopy of defects in ureilitic diamonds

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DOI	10.1111/maps.13274
	Metamorphism of four desert ureilites and luminescence spectroscopy of defects in ureilitic diamonds
	Lorenz, C. A.1; Shiryaev, A. A.2,3; Vlasov, I. I.4; Borisovsky, S. E.3
通讯作者	Lorenz, C. A.
来源期刊	METEORITICS & PLANETARY SCIENCE
ISSN	1086-9379
EISSN	1945-5100
出版年	2019
卷号	54 期号:6 页码:1197-1214
英文摘要	Four ureilites subjected to impact metamorphism in a pressure range of 15-100 GPa were investigated for mineralogical and petrological features and optical luminescence of their diamonds with the aim to understand how properties of ureilitic diamonds are correlated with shock and thermal histories of the host meteorite. Petrological data show that all the investigated ureilites experienced multistage metamorphic histories. Some of them were shocked at least twice or/and underwent high-temperature thermal metamorphism and fluid metasomatism in the parent body interior. Photoluminescence spectra of individual diamond grains reveal the presence of neutral and negatively charged nitrogen-vacancy (NV0 and NV-, respectively) and H3 (two nitrogens and a vacancy) defects, indicating relatively high nitrogen contents of the diamonds and some degree of thermal annealing of the grains. The diamond grain size and morphology, a texture of graphite-diamond aggregates, and spectroscopic properties of the diamond phase vary widely both within an individual meteorite and between the ureilites. Shock-driven transformation of sp2-C into diamond provides the most natural explanation of the observed spectroscopic diversity of the diamond grains if one takes into account strong dependence of the PT parameters and efficiency of the transformation on structure of the carbonaceous precursor.
类型	Article
语种	英语
国家	Russia
收录类别	SCI-E
WOS记录号	WOS:000470741600001
WOS关键词	X-RAY-DIFFRACTION ; PRESSURE-TEMPERATURE RELATIONSHIPS ; TRANSMISSION-ELECTRON-MICROSCOPY ; ALMAHATA SITTA ; ORIGIN ; SHOCK ; CARBON ; GRAPHITE ; OLIVINE ; RAMAN
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217578
作者单位	1.RAS, Vernadsky Inst Geochem & Analyt Chem, Kosygin St 19, Moscow 119999, Russia; 2.RAS, AN Frumkin Inst Phys Chem & Electrochem, Leninsky Pr 31 Korp 4, Moscow 119071, Russia; 3.RAS, Inst Geol Ore Deposits Petrog Mineral & Geochem, Staromonetnyi Per 35, Moscow 119017, Russia; 4.RAS, AM Prokhorov Gen Phys Inst, Vavilova St 38, Moscow 119991, Russia
推荐引用方式 GB/T 7714	Lorenz, C. A.,Shiryaev, A. A.,Vlasov, I. I.,et al. Metamorphism of four desert ureilites and luminescence spectroscopy of defects in ureilitic diamonds[J],2019,54(6):1197-1214.
APA	Lorenz, C. A.,Shiryaev, A. A.,Vlasov, I. I.,&Borisovsky, S. E..(2019).Metamorphism of four desert ureilites and luminescence spectroscopy of defects in ureilitic diamonds.METEORITICS & PLANETARY SCIENCE,54(6),1197-1214.
MLA	Lorenz, C. A.,et al."Metamorphism of four desert ureilites and luminescence spectroscopy of defects in ureilitic diamonds".METEORITICS & PLANETARY SCIENCE 54.6(2019):1197-1214.