基性岩
- 网络basic rock;mafic;basite;Basic Igneous Rocks
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中国东部碱性基性岩与金刚石矿床成矿机制研究
Relationship of eastern China alkaline basic rock and diamond-forming mechanism
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笔者们认为二辉麻粒岩包体是下地壳中某种基性岩发生部分熔融,形成中酸性斑岩后的难熔残体,并且利用微量元素的定量模式计算了部分熔融的程度。
The writers think of the two-pyroxene granulite enclaves as the undissolved renains while some kind of basic rock in crust is partly dissolving and after the mid-acid porphyry formed .
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中国与基性&超基性岩有关的Cu-Ni(Pt)矿床成矿系列类型
Metallogenic series types of Cu ni ( pt ) deposits related to BASIC-ULTRABASIC rocks in China
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洱海东部第三纪火山岩与同时代基性岩为超K岩系。
The Cenozoic volcanic and mafic rocks in eastern Erhai , western Yunnan , constitute an ultra - potassic complex .
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在发现的重磁异常(含Cr的超基性岩,含Cu、Ni的基性超基性岩)和目标矿种元素及组合异常(贵金属和有色金属)基础上,确定异常源和矿床靶区;
Based on the discovery of heavy magnetic anomalies , target ore elements and composite anomalies , determining the deposit target and anomalies sources .
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基性岩斜锆石U-Pb同位素定年3种方法之比较
Comparison of three methods for baddeleyite U-Pb isotope dating of basic rocks
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关于基性岩墙群的U-PbSHRIMP地质年代学的探讨&以鲁西莱芜辉绿岩岩墙为例
The SHRIMP U-Pb chronology of mafic dyke swarms : A case study of Laiwu diabase dykes in western Shandong
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超基性岩的SiO2含量小于45%,它的侵入岩叫做橄榄岩,主要由橄榄石、辉石等矿物组成。
Ultrabasic rocks have a silica content less than 45 % . Peridotite is the typical intrusive rock which consists of olivine and pyroxene .
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山东沂水杂岩中变基性岩的岩石地球化学特征及锆石SHRIMPU-Pb定年
The Petro-geochemical Characters and SHRIMP U-Pb Zircon Ages of Meta-mafic Rocks from the Yishui Complex , in Yishui County , Shandong Province
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怀化隘口基性超基性岩Rb-Sr等时线年龄及其地质意义
Rb-Sr isochron dating of the BASIC-ULTRABASIC rocks from aikou , huaihua and its geologic significance
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岩浆型矿床,常量元素与超基性岩接近,TiO2与Al2O3、(La/Lu)N等呈正相关。
The invariable elements magmatic deposits are close to of the ultrabasic rocks , the TiO 2 is correlated with Al 2O 3 and ( La / Lu ) N etc. in positive correlation .
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变超基性岩蛇纹石化橄榄岩的稀土元素配分具典型的U形特征,显示为具地幔交代作用的LREE富集地幔残余。
The REE distribution of serpentinized peridotite in ultrabasic rocks is the characteristic of U-type , showing that it was the LREE enriched residual mantle experienced in mantle metasomatism .
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恒山中元古代早期基性岩墙群的单颗粒锆石U-Pb年龄及其克拉通构造演化意义
Single-Zircon U-Pb Age of the Initial Mesoproterozoic Basic Dike Swarms in Hengshan Mountain and Its Implication for the Tectonic Evolution of the North China Craton
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四川丹巴地区基性、超基性岩型Cu-Ni-Pt族元素矿床中,含有多种铂族元素矿物。
In the Cu Ni Pt deposit of the basic ultrabasic rock type of the Danba area , there exist various minerals with platinum group element .
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GPt_1~7系列标准物质由土壤、水系沉积物、富镁超基性岩、富铁超基性岩、含铜镍贫铂矿石及铬铁矿等不同类型7个样品组成。
A set of seven geochemical reference materials for platinum group elements ( PGE ) and Au including soils , sediments , Mg_rich peridotite , Fe_rich peridotite , poor platinum ores containing copper and nickel , and chromite , were prepared .
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400Ma时活动的中酸性岩浆热液不仅使超基性岩变质,而且使呈分散状态存在于超基性岩中的金一部分破活化而进入热液形成含矿热液。
Acidic magmatic hydrothermal solution in 400 my not only causes metamorphism of the ultrabasic rock but also dissolves part of gold which is scattered in the ultrabasic rock .
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而受到地壳组分混染的基性岩,部分可能是通过AFC作用形成,但是其岩浆源非本研究中的碱性OIB或E-MORB样品,而是类似于N-MORB成分。
Some of basic rocks contaminated by the crust materials could be formed by the AFC process , but the magma source are N-MORB compostion , rather than alkaline OIB or E-MORB compostions .
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蓝田铀矿区出露的基性岩脉主要为两种类型:一种是深灰绿色煌斑岩脉,按国际地科联推荐的煌斑岩分类方案属云煌岩,按Rittmann的划分标准,属于亚碱性岩系。
There is two types of mafic dikes in Lantian uranium field . One is dark green lamprophyre , minette ( according to the IUGS recommended lamprophyre classification scheme ) .
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该超基性岩侵入于一个闪长岩体中,1∶5万区域地质矿产调查获得该闪长岩的年龄为303Ma±15Ma。
During 1 ∶ 50000 regional geological and mineral survey , SHRIMP U-Pb dating was performed on zircons from this intrusion and an age of 303 ± 15 Ma was obtained for the diorite .
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白垩纪基性岩脉(81~135Ma)形成于板内拉张环境,与粤北、福建沿海地区的白垩纪基性岩脉共同指示了中国东南部白垩纪时期处于拉张的构造环境。
In addition , the mafic dykes of Hainan island were formed in an intraplate extensional environment , similar to the mafic dykes in North Guangdong and Fujian coastal areas , all suggesting an extension regime tectonic in southeastern China during Cretaceous .
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汝城盆地基性岩形成于陆内拉张带(初始裂谷)构造环境,其强烈拉张时期与华南南岭地区的主要拉张时期(120Ma)相对应。
The basic rocks in the Rucheng Basin were formed in the tectonic setting of continental extension belt ( or initial rift ) and its intense extension epoch is corresponding to the main extension epoch ( 120Ma ) in the Nanling region , South China .
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新疆东部基性超基性岩的地质地球化学特征
Geological-geochemical characteristics of the BASIC-ULTRABASIC rocks in the east of Xinjiang
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铼-锇同位素体系在基性&超基性岩中应用现状的综述
Application of the Re-Os system to basic and ultra basic rocks
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超基性岩成矿专属性研究进展
The progress of study on the Metallogenetic specialization of Ultrabasic Rocks
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阿拉善地区超基性岩组构特征与超微构造分析
Analysis of the fabric feature and ultramicrostructure of ultrabasic rocks from Alxa
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赣东北地区超基性岩的侵位方式和成岩时代
Emplacement mode ane age of ultrabasic rocks in northeastern Jiangxi
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基性岩套由拉斑玄武岩-碱性玄武岩组成。
Basic suite consists of tholeiite and alkali - basalt .
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吉林基性超基性岩的地质特征及找矿方向
Geological features of BASIC-ULTRABASIC rocks and its prospecting direction in Jilin Province
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苏北超基性岩某些超高压变质特征
Some Ultra high Pressure Metamorphic Features of Ultrabasic Rocks in Northern Jiangsu
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水对下地壳基性岩脆塑性转化影响的实验研究
The effect of water on brittle-plastic transition of lower crustal mafic rocks