查询词典 basalts

One component is thought to have been derived from the lithospheric mantle, and the other was derived from an asthenospheric source similar to that of Hawaii, Iceland and Reunion basalts.

一种组分来源于岩石圈地幔，另一种组分来源于与夏威夷、冰岛和留尼汪岛等洋岛玄武岩源区相似的软流圈。

Moreover, in some favorable places where basalts are intersected by granites, the NO.

值得重视的是，区内火山沉积型Cu矿床在空间上与玄武岩的密切依存关系可用于指导找矿，而且在玄武岩受花岗岩交切的某些有利部位可找到403〓矿体式和双竹式Sn、Cu矿床。

The geochemical characteristics and behavior of rare earth elements in soils developed on the basalts in the northern part of Hainan Island erupted in different time were studied as well as the REE partition in the soil formation process and its implication on soil development degree.

研究了海南岛北部不同时期喷发的玄武岩上发育土壤中稀土元素的地球化学特征和行为，探讨成土过程中稀土元素的分异及其对土壤发育程度的指示作用。

The Tianshan basalts may result from a starting mantle plume.

天山玄武岩可能是产生于地幔柱头。

That is to say, the Cenozoic alkaline basalts were more or less modified by some enriched Sr-Nd isotopic components during their eruption.

同时，拉斑玄武岩不是碱性玄武质岩浆直接结晶分异的产物，亦不是完全由部分熔融程度的不同造成的。

The rocks aremainly composed of alkaline olivine basalts and basanites, and lots of lava layers had ultra-maficxenoliths and megacrysts.

岩石类型主要为碱性橄榄玄武岩和碧玄岩，多数岩层中出现超镁铁质包体和巨晶。

According to their mineral assemblages, the granulite xenoliths entrained by Cenozoic Hannuoba basalts are divided into four groups: felsic granulites, noritic granulites, two-pyroxene two-feldspar granulites and two-pyroxene granulites, with the two-pyroxene granulites most common.

根据矿物组合特征，汉诺坝玄武岩中的麻粒岩捕掳体可划分为四种类型：长英质麻粒岩、苏长质麻粒岩、二辉二长麻粒岩和二辉麻粒岩，其中以二辉麻粒岩最为常见。

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。

Therewere many mantle lherzolites xenoliths and huge xenocrysts in these basalts.

我们首次对这些幔源包体和高压巨晶的氦同位素组成进行了系统的研究。

All of the above characteristics as well as poorcrystallized, abundant peridotite inclusions, few xenocrysts, and elements covariation trend indicate that the Tianheyong basalts were solidified from primitive basaltic magma.

上述所有特征以及岩石结晶程度低、富含橄榄岩包体和少量捕虏晶、元素变异关系等均表明，天和永玄武岩是原生玄武岩质岩浆固结的产物。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。