- 更多网络例句与球粒玄武岩的相关的网络例句 [注：此内容来源于网络，仅供参考]
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Well-documented Lu-Hf isotope data from the oceanic basalts show that,the starting area of magma melting for the MORBs derived from the DMM component would be in the the depth of garnet peridotite,i.e.at the depth of 80―90 km instead of less than 60 km,which is at the depth of spinel peridotite as proposed early.The HIMU component,which is characterized by its high rediogenic lead,is refered as a special mantle component differentiated at some time in geological history from the lower mantle.A correlation study of Hf-Nd isotope between the chondrite and oceanic basalts implies that no isolated primitive mantle might have remained.
大量的大洋玄武岩Lu-Hf同位素研究表明：具亏损地幔端元来源的洋中脊玄武岩岩浆部分熔融的初熔区位于石榴石稳定场深度，即深度为80-90 km的石榴石二辉橄榄岩地幔，而不是原来所认为的尖晶石二辉橄榄岩区(深度小于60 km)；以高放射成因Pb为特征的高U地幔端元应代表了下地幔物质在某一特定时期发生分异作用的结果；球粒陨石与大洋玄武岩Hf同位素对比研究表明，没有原始地幔物质能保留至今的迹象。
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The peak metamorphic minerals are garnet, omphacite,phengite and rutile with temperature of～500℃,pressure of～2.3Gpa.On the basis of geochemical analysis,the content of SiO2 in the eclogite ranges from 46.68%to 50.24%,Na2O+K2O 3.10～4.21%,and high REE with enriched LREE, LREE/HREE of 2.83～6.06.The REE pattern and trace element spidergram are similar with those of ocean island basalt,according with the blueschist from Longmucuo -Shuanghu suture zone.The protolith of the eclogite and blueschist are OIB,and they aremaybe the result of subduction of Permian OIB in central Qiangtang area.
对棉辉岩的地球化学分析显示，榴辉岩SiO_2含量在46.68—50.24%之间，Na_2O+K_2O含量在3.10—4.21%之间，稀土元素总量较高，轻稀土富集，重稀土相对亏损，LREE/HREE比值在2.83—6.06之间，稀土元素球粒陨石标准化曲线呈向右倾斜的样式，微量元素原始地幔标准化蛛网图OIB类似，这些特征和龙木错—双湖高压变质带的蓝片岩类似，它们的原岩为均为洋岛型玄武岩，形成环境类似于现在太平洋中的夏威夷，榴辉岩、蓝片岩很可能是羌塘中部地区出露的二叠纪洋岛型岩石俯冲消减的产物。
- 更多网络解释与球粒玄武岩的相关的网络解释 [注：此内容来源于网络，仅供参考]
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achondrite：无球粒陨石
无球粒陨石(Achondrite)由岩浆结晶的不含球粒(宇宙源的球状体)的石陨石,约占已知陨石的4%,外观上与玄武岩、橄榄岩和辉岩等含硅量低的地球火成岩相似. 地球的岩浆曾形成基性岩和超基性岩,无球粒陨石也许是从和岩浆相似的熔融物质中结晶而成;
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chondrite：球粒陨石
根据是否含球粒可分为球球粒陨石(Chondrite)是各类陨石中最常见的陨石类型. 其最大特点是玻璃陨石(tektite)是一种黑色块状天然玻璃. 是一种经过熔融很快冷在高地玄武岩中,有一种富钾(K)、稀土(REE)和磷(P)的岩石,称为克里普(KREEP)岩.
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varioloid：假性天花
variolitic 球粒玄武岩的 | varioloid 假性天花 | varioloid 假性天花的
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maenaite：富闪二长霏细岩
macrovariolitic 粗球粒玄武岩的 | maenaite 富闪二长霏细岩 | mafic rock 镁铁质岩石
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variolitic：球粒玄武岩的
variolite 球颗玄武岩 | variolitic 球粒玄武岩的 | varioloid 假性天花