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Response of silicate chemical composition variation on thermal metamorphism of ordinary chondrites and classification of petrologic types:the case of L chondrites from Grove Mountains,Antarctica

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Acta Geochimica 2021年第6期40卷 895-911页

作者： chuantong zhang Bingkui Miao Zhipeng Xia Qinglin Xie Institution of Meteorites and Planetary Materials Research Guilin University of TechnologyGuilin 541006China Key Laboratory of Lunar and Deep Space Exploration Chinese Academy of SciencesBeijing 100101China Key Laboratory of Planetary Geological Evolution At Universities of Guangxi Province Guilin University of TechnologyGuilin 541006China College of Environmental Science and Engineering Guilin University of TechnologyGuilin 541006China

Analysis of the thermal metamorphism of the ordinary chondrites is a key premise for gaining insights into the accretion and heating of rocky bodies in the early solar *** an analysis also represents an essential condition for constraining the early thermal and evolutionary histories of asteroids and terrestrial *** ordinary chondrites into petrologic type(type 3–6)is the criterion for studying the thermal metamorphism of their parent ***,the boundary between the unequilibrated(type 3)and equilibrated(type 4–6)chondrites is ambiguous at present,thus,limiting the understanding of their thermal *** this study,the petrology,mineralogy and chemical composition of a set of seven ordinary chondrites with different degrees of thermal metamorphism collected from Grove Mountains(Antarctica)have been *** results demonstrated that these chondrite samples were L3.7,L3.8,L3.9,L3.9/4,L4,L5 and L6 type meteorites,with optimal correlations of Si,Mg,Fe,Mn and Ca with equilibrium degree of the olivine and low-calcium pyroxene and petrologic *** this respect,the multi-parameter classification standard PMD(SiO2)-PMD(MgO)-PMD(MnO)-PMD(CaO)based on the percent mean deviation(PMD)of the chemical compositions of the olivine and low-calcium pyroxene was proposed to distinguish between the unequilibrated and equilibrated *** proposed standard exhibited high“resolution”in terms of classification,thus,also deepening the understanding of the effect of the silicate mineral composition in the thermal metamorphism of *** The chemical groups and petrologic types of the selected seven Antarctic chondrites were L3.7,L3.8,L3.9,L3.9/4,L4,L5 and L6.A new method for petrologic type classification is proposed to distinguish the unequilibrated and equilibrated *** above developed multi-parameter system exhibited high“resolution”in terms of classification.

关键词： Grove mountains Antarctica Ordinary chondrite Thermal metamorphism Silicate Petrologic type Classification standard

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中国南极陨石的收集、研究与展望

极地研究 2024年第3期36卷 454-472页

作者：夏志鹏杨东亮王潇锐张川统陈宏毅缪秉魁桂林理工大学行星地质演化广西高校重点实验室陨石与行星物质研究中心广西桂林541000 桂林理工大学广西隐伏金属矿产勘查重点实验室广西桂林541000 桂林理工大学有色金属矿产勘查与资源高效利用省部共建协同创新中心广西桂林541004

陨石不仅是地球与宇宙之间联系的纽带,也是揭开太阳系历史、探索宇宙演化的关键钥匙。南极独特的地理条件和冰雪环境使其成为全球发现陨石最多的地区。自1998年在格罗夫山发现第一个陨石富集区以来,中国已收集了12665块陨石,在全球南极... 详细信息

陨石不仅是地球与宇宙之间联系的纽带,也是揭开太阳系历史、探索宇宙演化的关键钥匙。南极独特的地理条件和冰雪环境使其成为全球发现陨石最多的地区。自1998年在格罗夫山发现第一个陨石富集区以来,中国已收集了12665块陨石,在全球南极陨石收集数量中排名第三。本文概述了南极陨石发现历史,揭示了冰盖上陨石富集的独特性,集成了中国在格罗夫山陨石收集方面的成绩,并探讨了陨石的分类工作和最新的研究进展。总结取得成就的同时,也探索收集效率下降、富集区域限制和南极陨石自然“消失”等挑战和问题。最后,面对行星科学的快速发展和中国南极秦岭站建成的大好时机,本文提出了一些未来设想,包括成立南极陨石考察队,以秦岭站和中山站为后勤保障基地,开展横贯南极山脉和查尔斯王子山陨石综合考察,并加强南极陨石科研和科普的协同发展。

关键词：陨石收集与富集区格罗夫山南极

The vanadium isotopic composition of L ordinary chondrites

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Acta Geochimica 2018年第4期37卷 501-508页

作者： Yongli Xue Chun-hui Li Yuhan Qi chuantong zhang Bingkui Miao Fang Huang Institution of Meteorites and Planetary Materials Research Guilin University of Technology Key Laboratory of Planetary Geological Evolution at Universities of Guangxi Province Guilin University of Technology Key Laboratory of Crust-Mantle Materials and Environments School of Earth and Space SciencesUniversity of Science and Technology of China

Stable isotopic data of meteorites are critical for understanding the evolution of terrestrial planets. In this study, we report high-precision vanadium （V） isotopic compositions of 11 unequilibrated and equilibrated L chondrites. Our samples show an average δ^51v of -1.25‰ ±0.38‰ （2SD, n = 11）, which is ,- 0.5‰ lighter than that of the bulk silicate Earth constrained by mantle peridotites. Isotopic fractionation in type 3 ordinary chondrites vary from - 1.76‰ to - 1.29‰, whereas the δ^51V of equilibrated chondrites vary from - 1.37‰ to -1.08‰. 551V of L chondrites do not correlate with thermal metamorphism, shock stage, or weathering degree. Future studies are required to explore the reason for V isotope variation in the solar system.

关键词： V isotopes L ordinary chondrites Variation

A special unbrecciated granoblastic textured basaltic eucrite meteorite

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Acta Geologica Sinica(English Edition) 2017年第S1期91卷 275-276页

作者： zhang chuantong MIAO Bingkui XIE Lanfang XIA Zhipeng CHEN Hongyi Guangxi Key University’s Laboratory of Planetary Geological Evolution Guilin University of TechnologyGuilin 541004China Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration Guilin University of TechnologyGuilin 541004China Guangxi Scientific Experiment Center of Mining Metallurgy and EnvironmentGuilin University of TechnologyGuilin 541004China

1 Introduction Generally,we can observe varying degree of ophitic texture or sub-ophitic texture in unbrecciated basaltic ***,a few unbrecciated basaltic eucritespossess the special characteristic of crystalloblastic ... 详细信息

关键词： Ca A special unbrecciated granoblastic textured basaltic eucrite meteorite high

Impact history and origin of lunar meteorite Northwest Africa 15528

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Science China Earth Sciences 2023年第6期66卷 1399-1422页

作者： Runchuan LIU Huaiyu HE Thomas SMITH Hanqing YE Huapei WANG Xuhang zhang Fei SU Ziheng LIU Wei GUO Peng YANG chuantong zhang Dingshuai Xue Ting CAO Jiannan LI Xuelong JIANG Ye HE Chao LU State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Institutes of Earth Science Chinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China Paleomagnetism and Planetary Magnetism Laboratory School of Geophysics and GeomaticsChina University of GeosciencesWuhan 430074China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China Institution of Meteorites and Planetary Materials Research Center Guilin University of TechnologyGuilin 541004China

No samples from the Moon’s far side have been returned to ***,lunar meteorite study can deepen the understanding of the Moon’s far side(if we can identify which lunar meteorites came from the Moon’s far side).The Northwest Africa(NWA)15528 meteorite is a lunar feldspathic regolith breccia meteorite and we speculated it might originate from the Feldspathic Highlands Terrane(FHT)on the far side of the ***,we report detailed petrography,major and trace elements,and noble gas(He,Ne,and Ar)isotopes for the clasts and matrix,*** results show that the NWA 15528 lunar meteorite contains diverse clasts,including anorthosite,granulite,basalt,and impact melt *** coarse,wellcrystallized,uniform chemical composition minerals may come from intrusive plutonic *** the anorthosite clasts,the norite/olivine clasts originate from the deep lunar crust,whereas the other anorthosite clasts are from lunar *** Sm concentrations in NWA 15528 were similar to those in the fourth group of Apollo 16 melt samples,demonstrating that NWA 15528 has a typical plagioclase highland meteorite *** with the Apollo sample data and remote sensing results,the chemical composition of NWA 15528 indicated strong affinities with the FHT area and ferroan anorthosite(FAN)material from the far side of the *** noble gas isotopic composition of NWA 15528 is consistent with a binary mixture of solar wind and cosmogenic components;during stepwise pyrolytic extractions,we observed that the abundance of cosmogenic components decreased,whereas that of solar wind components increased with increasing *** average cosmic-ray exposure(CRE)age of the matrix and granulite is 42±6 Ma,with a shielding depth in the same range of 10-20 g cm^(−2).The gas retention age of NWA 15528 is 2.14 Ga,and the antiquity age of NWA 15528 is(0.69-0.74)±0.2 Ga(considering 50%40Arm is 40Artrap)which indicates the different clasts of NWA 15528 are assembled after 0

关键词： The Moon Regolith Meteorites Cosmic rays Solar wind Thermal histories Far side of the Moon

Progress of Antarctic meteorite survey and research in China

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Advances in Polar Science 2018年第2期29卷 61-77页

作者： MIAO Bingkui XIA Zhipeng zhang chuantong OU Ronglin SUN Yunlong Institution of Meteorites and Planetary Materials Research Guilin University of Technology Key Laboratory of Planetary Geological Evolution of Guangxi Universities Guilin University of Technology

More than 50000 meteorite samples have been collected in Antarctica since 1969, making meteorite surveys a very important aspect of Antarctic expeditions. The Chinese National Antarctic Research Expedition has collected more than 12000 meteorites in the Grove Mountains region, where has been confirmed as one of the richest meteorite concentration sites in Antarctica. China, therefore, possesses one of the world’s largest Antarctic meteorite collections and has made substantial contributions to this field of research. We summarize here the Chinese meteorite survey efforts in the Grove Mountains, as well as discuss progress of the classification and investigation of Grove Mountains meteorites. Outlooks are also proposed for the future of Antarctic meteorite work.

关键词： meteorites Antarctica Grove Mountains meteorite collection

Lunar meteorites: witnesses of the composition and evolution of the Moon

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Advances in Polar Science 2014年第2期25卷 61-74页

作者： MIAO Bingkui CHEN Hongyi XIA Zhipeng YAO Jie XIE Lanfang NI Wenjun zhang chuantong Guangxi Scientific Experiment Center of Mining Metallurgy and Environment Guilin University of Technology Key Laboratory of Hidden Metallic Ore Deposits Exploration

Lunar meteorites are fragments of the Moon that escaped the gravity of the Moon following high-energy impacts by asteroids, subsequently fell to Earth. An inventory of 165 lunar meteorites has been developed since the discovery and identification of the first lunar meteorite, ALHA 81005, in 1979. Although the Apollo samples are much heavier in mass than lunar meteorites, the meteorites are still an important sample supplement for scientific research on the composition and history of the Moon. Apart from a small amount of unbrecciated crystalline rocks, the majority of lunar meteorites are breccias that can be classified into three groups： highland feldspathic breccia, mare basaltic breccia, and mingled（including fledspathic and basaltic clasts） breccia. The petrography of lunar rocks suggests that there are a series of rock types of anorthosite, basalt, gabbro, troctolite, norite and KREEP in the Moon. Although KREEP is rare in lunar rocks, KREEP components have been found in the increasing number of lunar meteorites. KREEP provides important information on lunar magmatic evolution, e.g., the VHK KREEP clasts in SaU 169 may represent the pristine lunar magma （urKREEP）. Six launching pairs of lunar meteorites have been proposed now, along with ten possible lunar launching sites. In addition, symplectite is often found in lunar basalts, which is a significant record of shock metamorphism on the lunar surface. Furthermore, isotopic ages and noble gases not only provide information on crystallization processes in lunar rocks and the formation of lunar crust, but also provide insight into shock events on the lunar surface.

关键词： lunar meteorites KREEP rocks KREEP launching pair launching sites

新疆库木塔格004号陨石球粒类型研究及其在球粒分类体系的应用

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极地研究 2013年第4期25卷 436-448页

作者：张川统缪秉魁贺怀宇桂林理工大学广西地质工程中心重点实验室广西桂林541004 中国科学院地质与地球物理研究所地球深部结构与过程研究室北京100029

球粒是球粒陨石的主要组分,目前球粒分类体系主要有3种,即结构分类、FeO-SiO2分类和M-FeO-CaO分类。球粒结构分类过于依赖结构与形态,而与化学成分联系不紧密。FeO-SiO2分类体系和M-FeO-CaO分类体系在传统的结构分类体系基础上加入了矿... 详细信息

球粒是球粒陨石的主要组分,目前球粒分类体系主要有3种,即结构分类、FeO-SiO2分类和M-FeO-CaO分类。球粒结构分类过于依赖结构与形态,而与化学成分联系不紧密。FeO-SiO2分类体系和M-FeO-CaO分类体系在传统的结构分类体系基础上加入了矿物化学分类参数,这有利于进一步研究太阳星云演化的物理化学过程。但与结构分类相比,很少利用FeO-SiO2和M-FeO-CaO分类体系对陨石球粒进行分类。本次所研究陨石为中国新发现的沙漠陨石富集区——新疆库木塔格沙漠004号陨石(L4,S4,W3),在对其中的球粒进行了详细普查和研究的基础上,分别利用3种分类体系对该陨石中的球粒进行分类,并进一步探讨了FeO-SiO2分类和M-FeO-CaO分类方法优缺点与应用范围。通过对比分析,提出了后两种分类方法的改进意见:针对FeO-SiO2分类体系,提出以硅酸盐中FeO=7.5%(wt%)为I型和Ⅱ型球粒分界线,SiO2=47%及53%(wt%)为A型、AB型和B型球粒分界线。FeO-SiO2分类体系不仅能应用于斑状球粒,也适用非斑状球粒。对M-FeO-CaO分类体系依据辉石组分(FeO及CaO,单位wt%)对A1型(FeO1)、A2型(FeO≈1—3,CaO3,CaO<0.5)球粒的类型区间进行了初步划分。

关键词：球粒分类结构化学成分库木塔格004号陨石

我国在南极格罗夫山发现的首块古铜钙长无球粒陨石(GRV 150277)及其外源碎屑研究

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岩石学报 2023年第1期39卷 205-216页

作者：张川统王潇锐缪秉魁夏志鹏陈国柱桂林理工大学行星地质演化广西高校重点实验室陨石与行星物质研究中心桂林541006 桂林理工大学广西隐伏金属矿产勘查重点实验室桂林541006

HED(Howardite-Eucrite-Diogenite)族陨石及其可能母体灶神星是国际深空探测与小行星研究的热点。其中,经历了复杂撞击混合成岩作用而形成的Howardite(古铜钙长无球粒陨石),是研究灶神星表土层物质组成与演化这一国际前沿领域的主要对象... 详细信息

HED(Howardite-Eucrite-Diogenite)族陨石及其可能母体灶神星是国际深空探测与小行星研究的热点。其中,经历了复杂撞击混合成岩作用而形成的Howardite(古铜钙长无球粒陨石),是研究灶神星表土层物质组成与演化这一国际前沿领域的主要对象。21世纪以来,中国在南极格罗夫山回收了大量陨石,这为我国行星科学的发展提供了重要的研究标本。我国目前已分类的南极陨石中发现有3块Eucrite陨石,其为研究灶神星岩浆活动提供了重要机遇。本次工作对2016年收集到的南极格罗夫山陨石GRV 150277进行了系统性岩石学与矿物学研究。研究结果表明GRV 150277具有典型的角砾结构,主要由近乎等比例的Diogenite陨石和Eucrite陨石碎屑组成,是我国在南极发现的第一块Howardite陨石。此外,GRV 150277中还可见少量的铁陨石与CM型陨石碎屑,表明灶神星表土层遭受了多种小行星撞击。GRV 150277陨石的发现及其外源碎屑的详细研究,对确定灶神星表土层物质组成与演化历史具有重要的指示意义。

关键词：格罗夫山陨石 Howardite陨石铁陨石碎屑 CM型陨石碎屑灶神星表土层