- 更多网络例句与同源岩浆的相关的网络例句 [注:此内容来源于网络,仅供参考]
-
They have A/CNK values of 0.9~1.2, suggesting aluminum saturation or ersaturation, and are enriched in LREE and LILEs and depleted in HFSEs. Their δEu values are 0.11~0.32, evidently indicating plagioclase fractional crystallization.(87Sr/86Sr)i ratios and εNdvalues are 0.707?9~0.716?1 and -6.90~-7.70 for volcanic rocks, and 0.7086~0.7098 and -7.10~-7.68 for quartz syenitic porphyrite, respectively, implying that all the igneous rocks from the Yandang Mountain were evolutional products of co-magmas, and derived mainly from the crust, mixed however with mantle components.
岩石富集轻稀土元素和大离子亲石元素,相对亏损高场强元素;δEu值为0.11~0.32,表明岩浆经历了以斜长石为主的强烈结晶分异作用;火山岩(87Sr/86Sr)i为0.707 9~0.716 1,εNd为-6.90~-7.70,中央侵入体石英正长斑岩(87Sr/86Sr)i为0.708 6~0.709 8,εNd为-7.10~-7.68,表明它们是同源岩浆不同阶段分异演化的产物,物质来源主要为陆壳,但也有地幔物质参与。
-
The Mg-rich volcanic rocks consist of high-Mg decite and high-Mg basalt which are the products of congenetic magma,in Ashele are, Xinjiang. In comparison with tholeiite, their εNd are obviously low, implying that they are contaminated by the oceanic sediments during their forming process.
阿舍勒富镁火山岩由高镁英安和高镁玄武岩组成它们可能是同源岩浆的产物,与共生的拉斑玄武岩相比,富镁火山岩钕同位素明显富集,反映在其形成过程中受到了大洋沉积物的混染。
-
From the viewpoint of comagmatic evolution and using the method of lithodemic division, the Jingning granite batholith is divided into nine units, which are incorporated into two super unit s.
根据同源岩浆演化的观点,运用岩石谱系单位的划分方法,将景宁花岗岩基解体,划分为9个单元,归并成2个超单元。
-
The granite body in the Jiangjunzhai tungsten deposit is a compound rockmass, which has the features of crust-derived type granite and is the product of comagmatic evolution.
岩石学和岩石地球化学研究表明,将军寨钨矿花岗岩体为一复式岩体,是同源岩浆演化的产物,具有壳源花岗岩的特征。
-
This suggests that they are comagmatic. products. formed under different condi-tions, that is, the shallow--seated inclusions came from the chilled border of theupper magmatic chamber while the deep--seated inclusions from the accumula-tive rocks of the lower magmatic chamber.
反映了它们是同源岩浆在不同岩浆作用阶段的产物,即深源包体来自深位岩浆房中的堆积岩碎块,而浅源包体则来自浅位岩浆房的冷凝边碎块。
-
Baihua igneous complex consists mainly of pyroxenite-gabbro-diorite-quartz diorite. They form a complete comagmatic evolutionary series. The tectonics environment discrimination of trace element geochemistry reveals the igneous complexs formed in an island-arc setting.
百花岩浆杂岩体主要由辉石岩-辉长岩-闪长岩-石英闪长岩组成,构成较完整的同源岩浆演化序列,地球化学研究表明其形成于岛弧构造环境。
-
The Liushuigou intermediate-basic meta-igneous complex at Guanzizhen, Tianshui, is composed mainly of metagabbro-metagabbro diorite-metadiorite, and the Baihua basic meta-igneous complex consists mainly of pyroxenite-gabbro-diorite-quartz diorite. They form a relatively complete comagmatic evolutionary series.
提要:天水地区关子镇流水沟变质中基性岩浆杂岩主要由变质辉长岩—辉长闪长岩—闪长岩组成,百花变质岩浆杂岩主要由辉石岩—辉长岩—闪长岩—石英闪长岩组成,构成较完整的同源岩浆演化序列。
-
Neoproterozoic Baoxing Complex in middle to lower metamorphic grade, located in western margin of Yangtze Craton, consists mainly of metamorphic gabbroic, dioritic gneisses, tonalitic and granodioritic gneisses, and massive monzogranites The studies of petrochemistry and SmNd isotopes of Baoxing Complex reveal that the gabbroic and dioritic magmas came from a congenetic magma derived from the partial melting of spinel lherzolites in depletive mantle, and that the magma was intensively contaminated by crustal materials during its emplacement The tonalitic and granodioritic magma were derived from the partial melting of metamorphic basalts in the lower crust And the monzogranitic magma was formed from partial melting of metagreywacks Integrating the lithological association, their trace elements, SmNd isotopic characteristics and petrogenesis, the Baoxing Complex must likely have been emplaced in an island arc tectonic background at the Neoproterozoic active continental margin of Yangtze Craton
位于扬子克拉通西缘的新元古代宝兴杂岩主要由中低级变质的辉长质片麻岩、闪长质片麻岩、英云闪长质到花岗闪长质片麻岩和块状二长花岗岩组成。岩石地球化学和SmNd同位素特征表明,辉长质片麻岩和闪长质片麻岩为同源岩浆演化序列,原始岩浆起源于亏损地幔尖晶石橄榄岩的部分熔融,在上升和侵位过程中受到了地壳岩石强烈混染。英云闪长质和花岗闪长质岩浆形成于下地壳玄武质岩石部分熔融,而二长花岗质岩浆形成于杂砂岩的部分熔融。综合分析宝兴杂岩的岩石组合、微量元素和同位素特征,该杂岩体最有可能形成于新元古代活动大陆边缘火山弧构造背景,并可能经历了碰撞过程。
-
This thesis studies the volcanic tectono-petrofacies, petrology, mineralogy, geochemistry, isotopic chronology, stratum and high-precision SHRIMP zircon U-Pb datings of the Mt.Yandangshan volcano-intrusive complex, and concludes that: Yandangshan volcanic rock units belong to high-K calc-alkaline acid rock associations, mainly ryholitic and trachytic dacitic in composition. They have A/CNK values of 0.9-1.2 (i.e., aluminium saturation and supersaturation), enriched LREE and LILEs and depleted HFSE. Their 8Eu values are 0.11-0.32, indicating a evident fractional evolution of plagioclase crystallization. Their ∑REE varied very limitedly,(87~Sr/(86)Sri ratios and eNd values are 0.7086~0.7095 and -10.20~-9.96 for volcanic rocks, and 0.7087~0.7095 and -7.6~6.92 for the central intrusive facies syenite, which means that all the igneous rocks from Mt. Yandangshan are evolutional products of magmas with the same source, and that they derived mainly from crust, but mixed with mantle components.
本文从火山构造岩相学、岩石学、矿物学、地球化学、同位素年代学、地层学等方面出发,同时结合高精度SHRIMP锆石U-Pb定年,对雁荡山火山岩进行了系统的研究,确定雁荡山火山岩为一套以流纹质和粗面英安质为主体的高钾钙碱性酸性岩石组合,A/CNK值集中在0.9~1.2之间,为铝饱和或铝过饱和类型;富轻稀土元素和大阳离子亲石元素、相对亏损高场强元素:负铕异常明显,δEu值为0.11~0.32,表明岩浆经历了以斜长石为主的强烈结晶分异作用:岩石样品的∑REE变化有限,火山岩样品的~(87Sr/~(86)Sr_i为0.7086~0.7095,εNd为-10.20~-9.96,中央侵入体石英正长岩~(87Sr/~(86)Sr_i为0.7087~0.7095,εNd为-7.6~-6.92,表明它们是同源岩浆分异演化的产物,物质来源主要为陆壳,但有地幔物质参与。
-
Trachyte has as the same isotope feature as the basalts, indicating that they were derived from the same source, and resulted from products during different evolution phases of the same magma source, which is similar to that of the basalts in Emeishan.
该区粗面岩类与玄武岩的同位素特征类似,说明二者具有相同的源区,并可能代表了同源岩浆不同演化阶段的的产物,这与峨眉山地幔柱岩浆活动的玄武岩与粗面岩所具有的演化关系相同。
- 更多网络解释与同源岩浆的相关的网络解释 [注:此内容来源于网络,仅供参考]
-
comagmatic:同源岩浆的
colusite 锡砷硫钒铜矿 | comagmatic 同源岩浆的 | comagmatic region 同源岩浆区
-
comagmatic region:同源岩浆区
comagmatic 同源岩浆的 | comagmatic region 同源岩浆区 | comb landform 梳状地形
-
comagmatic rock:同源岩浆岩
coma 彗发 | comagmatic rock 同源岩浆岩 | comagmatic 同源岩浆的
-
consanguineous:同源岩浆的
同源岩浆的 comagmatic | 同源岩浆的 consanguineous | 同源岩浆区 comagmatic region