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  2. 地质与地球物理研究所
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  4. 中国科学院页岩气与地质工程重点实验室
Cooling rates and impact histories of group IAB and other IAB complex iron meteorites inferred from zoned taenite and the cloudy zone

文献类型：期刊论文

作者Goldstein, Joseph, I3; Scott, Edward R. D.2; Winfield, Timothy B.3,4; Yang, Jijin1,5; Rubin, Alan
刊名METEORITICS & PLANETARY SCIENCE
出版日期2021-10-18
页码23
ISSN号1086-9379
DOI10.1111/maps.13745
英文摘要Metallographic cooling rates of 10-20 K Myr(-1) were obtained for four IAB iron meteorites from electron probe analyses of taenite and models simulating kamacite growth. Cooling rates were also determined for 21 irons in the IAB complex from the size of tetrataenite particles in the cloudy zone and a calibration curve using data for the four IAB irons and five other iron and stony iron groups. We find that the closely related IAB main group, low-Au subgroups, Pitts grouplet irons, and San Cristobal cooled through 500 degrees C at 10-35 K Myr(-1). The ungrouped IAB complex irons, Santa Catharina and Twin City, have bulk Ni contents of similar to 30 wt% and cooled much faster at similar to 200-1000 K Myr(-1), most probably in a different parent body. Our cooling rates and observations allow conflicting interpretations of the nature of the low-Ni phase in the cloudy zone to be reconciled. We infer that in fast cooled irons like Santa Catharina, the low-Ni phase transforms to antitaenite, but in very slowly cooled meteorites like mesosiderites, martensite forms instead. In meteorites with intermediate cooling rates like IAB irons, the bulk of the cloudy zone probably contains antitaenite as the low-Ni phase, but in the coarse region next to tetrataenite, martensite is present. Published isotopic ages show that metal-silicate mixing in group IAB irons occurred similar to 5-10 Myr after CAI formation, but the nature and timing of the impact are poorly constrained at present. Ar-Ar ages testify to shock reheating of plagioclase during cooling over similar to 100 Myr. However, the cloudy zone is well preserved showing that metal was not heated significantly by shocks after slow cooling through 400 degrees C.
WOS关键词PD-AG CHRONOMETRY ; I-XE AGES ; STONY-IRON ; PARENT BODIES ; ELECTRON-MICROSCOPY ; ORDINARY CHONDRITES ; EVOLUTION ; METAL ; ORIGIN ; CONSTRAINTS
资助项目NASA cosmochemistry program[NNX11AF62G] ; NASA cosmochemistry program[NNX12AK68G] ; Key research program of the Institute of Geology & Geophysics, CAS through grant[IGGCAS-202101]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000707943000001
出版者WILEY
资助机构NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; NASA cosmochemistry program ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant ; Key research program of the Institute of Geology & Geophysics, CAS through grant
源URL[http://ir.iggcas.ac.cn/handle/132A11/102986]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Yang, Jijin
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Univ Hawaii Manoa, Hawaii Inst Geophys & Planetol, Honolulu, HI 96822 USA
3.Univ Massachusetts, Dept Mech & Ind Engn, Amherst, MA 01003 USA
4.Pratt & Whitney, E Hartford, CT USA
5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Goldstein, Joseph, I,Scott, Edward R. D.,Winfield, Timothy B.,et al. Cooling rates and impact histories of group IAB and other IAB complex iron meteorites inferred from zoned taenite and the cloudy zone[J]. METEORITICS & PLANETARY SCIENCE,2021:23.
APA Goldstein, Joseph, I,Scott, Edward R. D.,Winfield, Timothy B.,Yang, Jijin,&Rubin, Alan.(2021).Cooling rates and impact histories of group IAB and other IAB complex iron meteorites inferred from zoned taenite and the cloudy zone.METEORITICS & PLANETARY SCIENCE,23.
MLA Goldstein, Joseph, I,et al."Cooling rates and impact histories of group IAB and other IAB complex iron meteorites inferred from zoned taenite and the cloudy zone".METEORITICS & PLANETARY SCIENCE (2021):23.

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来源：地质与地球物理研究所

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