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Based on the petrological and geochronological study of metamorphic complexes from the Grove Mountains, the following conclusions are reached.(1)Exsolution texture is widely found in clinopyroxene in mafic granulites. A peak metamorphic temperature of 850 C was obtained from the reintegrated compositions of exsolved clinopyroxene. The preservation of augite megacrysts suggests a single episode of high-grade metamorphism for the Grove Mountains.(2)The compositional comparison of garnet from pegmatites with that from country rocks demonstrates that garnet in pegmatites is of xenocryst origin, and late amphibolite facies metamorphism does not occur in this area.(3)The Pan-African charnockite and post-tectonic sheet-like granite were first recognized in East Antarctica. Their occurrences suggest a collisional orogeny during the Pan-African time.(4)The SHRIMP U-Pb zircon dating on various rock types indicates that the major metamorphism in the Grove Mountains occurs at c. 550 Ma, and the tectonothermal evolution terminated at c. 500 Ma. The Grenvillian granulite facies metamorphism did not develop in the studied area.(5)The Prydz belt, the second Pan-African suture within the Gondwana suppercontinent, was further comfirmed based on this study. The Gondwana suppercontinent was not formed by the simply juxtaposition of East and West Gondwana, but by the collision of several blocks during the Pan-African time.
本项目通过格罗夫山地区高级变质杂岩的变质岩石学和同位素年代学研究，获得如下重要认识：（1）发现辉石出溶结构，由此获得峰期变质温度为850 C，并根据火成普通辉石的识别确定该区只存在单相麻粒岩相变质；（2）通过伟晶岩中石榴石斑晶与围岩中石榴石的对比研究提出了石榴石的捕虏晶成因，进而确定该区不存在晚期角闪岩相变质作用；（3）在东南极首次识别出泛非期紫苏花岗岩和后构造层状花岗岩，为泛非构造热事件的碰撞造山成因提供了重要佐证；（4）对不同岩石类型的锆石SHRIMP定年精确地限定了格罗夫山地区主期变质作用发生于泛非期，～550 Ma，热事件结束于～500 Ma，年代学数据没有揭示在该区存在格林威尔期麻粒岩相变质作用的迹象；（5）进一步确认了东南极内部普里兹带的存在，它属于冈瓦纳超大陆内部的第二条泛非期缝合带，据此认为冈瓦纳超大陆并不是由东、西冈瓦纳陆块的简单拼合而成，而是多个不同块体拼合的结果。
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The mineral assemblages of the granulite are clinopyroxene, orthophyroxe, biotite, plagioclase, amphibole, quartz. According to the results of mineral electron probe analyses, the formation conditions of granulite are discussed and P-T conditions are calculated.
根据麻粒岩的主要组成矿物单斜辉石、斜方辉石、黑云母、斜长石、角闪石的电子探针分析结果，重点讨论了各主要造岩矿物的形成条件，并对麻粒岩形成的温压条件进行了初步计算。
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Characterized by generally containing diopside, sphene, scapolite and apatite, the unit is composed of diopside gneisses and diopsidefeldspar granulitite, feldspardiopside granulitite, diopsidite and diopside marble.
该岩组由透辉片麻岩和透辉长石变粒岩、长石透辉变粒岩、透辉石岩、透辉大理岩组成，普遍以富含透辉石、榍石、方柱石和磷灰石为特征。
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Characterized by generally containing diopside, sphene, scapolite and apatite, the unit is composed of diopside gneisses and diopside-feldspar granulitite, feldspar-diopside granulitite, diopsidite and diopside marble.
该岩组由透辉片麻岩和透辉长石变粒岩、长石透辉变粒岩、透辉石岩、透辉大理岩组成，普遍以富含透辉石、榍石、方柱石和磷灰石为特征。
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There are two kinds of spinels in a granulite terrain of Yushujgou, South Tianshan Mountain. One occurs in the intermediate and basic granulite units and is characterized by enriched Al and poor Cr, belonging to Al_spinel. In thin sections it shows dark green color and subhedral to anhedral form, and coexists with other metamorphic minerals, suggesting a neogenic metamorphic mineral of granulite facies. The other occurs in the adjacent ultramafic rock unit, belonging to Cr_spinel. In thin sections, it is dark brown in color and is scattered among olivine, clinopyroxene and orthopyroxene as irregular grains, indicating a stable residual mineral in the process of granulite facies metamorphism.
新疆榆树沟麻粒岩地体中发育两类尖晶石：一类见于中、基性麻粒岩体中，其化学成分富 Al贫 Cr ，属铝尖晶石，镜下为深绿色，呈半自形至他形粒状，与其它变质矿物共生，表现为麻粒岩相的新生变质矿物；另一类发育在空间上与麻粒岩体紧密相邻的超镁铁质岩体中，为铬尖晶石，镜下为深褐红色，呈不规则粒状分布于橄榄石、斜方辉石和单斜辉石之间，为麻粒岩相变质过程中稳定的残余矿物。
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The results of DLVO theoretical calculations indicate that the total acting energy between the titanaugite and ilmenite particles at pH 5.9 is negative, showing as attraction, which causes the superfine titanaugite particles attach on the surface of ilmenite. At pH 8.5, because of large electrostatic repulsion energy, the total acting energy shows as strong repulsion, thus the superfine titanaugite particles can not attach on the surface of ilmenite.
DLVO理论计算结果表明：当pH=5.9时，两种矿物颗粒间的总相互作用能为负值，表现为相互吸引，微细粒级的钛辉石会在钛铁矿表面上粘附，使钛铁矿的回收率显著降低；当pH=8.5时，由于静电排斥能大，总相互作用能仍表现为较强的排斥力，微细粒钛辉石不能粘附在钛铁矿表面。
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Infrared spectroscopic analysis shows that the water glass is chemically adsorbed on the surface of titanaugite but this reaction is weaker between the water glass and ilmenite; hetero-coagulation will occur easily under weak acidic condition because of the opposite surface charge of ilmenite and titanaugite.
红外光谱分析表明：水玻璃与钛辉石发生化学吸附，而在钛铁矿表面吸附较弱；在弱酸性条件下，由于钛铁矿与钛辉石表面带异相电荷而容易发生异相凝聚，添加水玻璃使二者表面电位均显负电性，矿粒间静电斥力迅速增大，从而减弱矿粒间的异相凝聚。
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The granulite xenoliths, as the product of basaltic underplating and the representative of the present-day lower crust, are different from the local Archean granulite terrains There is a systematic variation of Sr-Nd isotopes from the granulites to the pyroxenites and the peridotites, indicating the possible crust-mantle interaction beneath Hannuoba area.
麻粒岩类捕掳体所代表的年轻大陆下地壳为玄武质底垫作用的产物，与麻粒岩地体所代表的古老大陆下地壳不同。橄榄岩类捕掳体则具亏损特征，辉石岩类捕掳体的性质介于麻粒岩类和橄榄岩类捕掳体之间，但石榴子石辉石岩显示了其特殊性。
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The deep-seated xenoliths entrained by the Cenozoic Hannuoba basalts can be divided into three groups according to their mineral assemblages:Ⅰ Granulites, including felsic granulites, noritic granulites, and dominantly, two-pyroxene granulites,Ⅱ Pyroxenites, including websterites, spinel pyroxenites, and garnet pyroxenites;Ⅲ Peridotites, including spinel lherzolites and spinelgarnet lherzolites.
根据新生代汉诺坝玄武岩中深源岩石捕掳体的矿物组合类型，将其分为主要的三大类：麻粒岩类中包括长英质麻粒岩、苏长质麻粒岩和二辉麻粒岩，辉石岩类包括二辉石岩、尖晶石辉石岩和石榴子石辉石岩，橄榄岩类则包括尖晶石二辉橄榄岩和尖晶石-石榴子石二辉橄榄岩。
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Coarse-grained pyroxenes commonly contain abundant tiny or needle-like chromite inclusions with orientation,probably due to heavy shock events.
粗粒辉石晶体普遍存在微粒状或细针状铬铁矿，并具有定向分布特征，可能也与强烈的冲击变质有关。
- 更多网络解释与粒辉石相关的网络解释 [注：此内容来源于网络，仅供参考]
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amphibolite：角闪岩
斜长角闪岩(amphibolite) 斜长角闪岩 主要由角闪石和斜长石组成的中,高级区域变质岩.又称角闪岩.角闪石和斜长石的含 量相近.可含少量石英,铁铝榴石,黑云母,单斜辉石和斜方辉石.常为中,细粒纤状变晶 结构,可具有块状,
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anorthosite：斜长岩
斜长岩(anorthosite) 主要由斜长石组成,含量大于90%,斜长石一般为拉长石或中长石,暗色矿物为斜方辉石、单斜辉石、角闪石等,总和不足10%. 斜长岩具有半自形或它形粗粒结构.
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cobweb matrix：珠网绿松石
cobra stone 蛇宝石,蛇眼石,眼镜蛇石,夜明珠,绿光萤石 | cobweb matrix 珠网绿松石 | coccolite 粒辉石
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coccoid：球形物
coccodes 粒状体 | coccoid 球形物 | coccolite 粒辉石
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coccolith ooze：颗石藻软泥
coccolite 粒辉石 | coccolith ooze 颗石藻软泥 | coccolithes 颗石藻
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coccolith ooze：球菌软泥
粒辉石 coccolite | 球菌软泥 coccolith ooze | 球菌型 coccolith type
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cocoanut pearl：椰子珍珠
coccolite 粒辉石 | cocoanut pearl 椰子珍珠 | Colenso Diamond 科伦索钻石
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Coccogoneae：球子类
球子类 Coccogoneae | 粒辉石 coccolite | 球菌软泥 coccolith ooze
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coccolite：粒辉石
cobweb matrix 珠网绿松石 | coccolite 粒辉石 | cocoanut pearl 椰子珍珠
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granulitization：粒化作用
粒化作用 granulation | 粒化作用 granulitization | 粒辉石 coccolite