橄榄玄武岩

在福建明溪橄榄玄武岩红壤B层和由橄榄玄武岩坡积物发育的潜育型水稻土潜育层粘粒中发现了一种形态特异的矿物。

One kind of mineral with strange morphology was found in the clays of the B horizon of a red soil derived from olivine basalt and the gley horizon of a gleyed paddy soil developed from olivine & basaltic slope deposit in Mingxi county , Fujian province .

超碱岩，超基性岩碱性橄榄玄武岩岩浆

Ultrabasic rock alkali olivine basalt magma

以上特征表明，玄武岩总体上属于碱性橄榄玄武岩；

These characteristics indicate that basalts in Luliang belong to alkali-olivine basalt overall .

碱性橄榄玄武岩岩浆

Alkali olivine basalt magma

更新世至现代的火山岩为全晶质斑状的橄榄玄武岩和火山碎屑岩。

The holocrystalline porphyritic olivine basalts and pyroclastic rocks are the components of Pleistocene to recent volcanic activities .

地下深处的玄武岩、橄榄玄武岩和橄榄岩与实验室条件下的熔融铁类似。

Basalt , olivine basalt and peridotite buried in deep strata may act just as the melten iron in laboratory .

郯庐断裂带中段的新生代火山岩以碱性系列的碱性橄榄玄武岩、碧玄岩和霞石岩为主，其中又以钠质亚系的岩石为主。

According to the main rock-forming minerals in them , the Cenozoic volcanic rocks are mainly alkali olivine basalt , basanite and nephelinite .

哈尔加乌&卡拉岗旋回火山岩主要岩性包括橄榄玄武岩、玄武岩、粗玄岩、安山岩、粗安岩、流纹岩、火山碎屑岩等。

The volcanic rocks include olivine basalt , basalt , dolerite , andesite , trachyandesite , rhyolite , pyroclastic rock and so on .

汉那角剖面的火山碎屑岩和熔岩及史莱夫角的橄榄玄武岩均具有中白垩世的年龄。

Both the interlayered volcaniclastic rock and lava at Hannah Point and the olivine basalt at Cape Shirreff have the same Middle Cretaceous ages .

岩石类型包括杏仁状玄武岩、粗玄岩、块状玄武岩、橄榄玄武岩和安山玄武岩，属碱性玄武岩系列。

The rock types include amygdaloidal basalt , dolerite , massive basalt , olivine basalt and andesite-basalt , which belong to the alkali basalt series .

玄武岩为蚀变玄武岩、橄榄玄武岩等，造岩矿物斜长石的成分多为拉长石和中长石，辉石多为普通辉石，橄榄石多已伊丁石化。

The basalt is altered and olivine basalt . Plagioclase is mostly of labradorite and andesine , pyroxene mostly of augite , and olivine mostly replaced by iddingsite in rock-forming mineral .

岩石化学和地球化学资料表明，百耳斯半岛熔岩、史莱夫角的橄榄玄武岩和西多斯角的粗玄岩等白垩纪火山岩基本属于钙碱性岩系并且具有低钾低镁的特点。

Petrographical , petrochemical and geochemical data show that the lavas of Byers Peninsula and Cape Shirreff and the dolerite at Siddons Point belong to calc alkaline series and with the characters of lower potassium and magnesium .

主要岩石类型有橄榄玄武岩、碱性橄榄玄武岩、碧玄岩、霞石岩以及由分异作用或混染作用形成的碱性辉绿岩、拉斑辉绿岩和方沸正长岩；

These rocks consist of olivine basalt , alkali olivine basalt , basanite and nephelinite , together with alkali diabase , tholeiitic diabase and analcite syenite which have been formed as a result of differentiation and contamination .

丰富的铜质来自巨厚的裂谷火山岩系（橄榄拉斑玄武岩）。

Abundant copper material was derived from volcanic rock series ( olivine tholeiite ) in the rift .

根据岩石化学特征命名，中部样品主体为石英拉斑玄武岩，南部样品则为橄榄拉斑玄武岩。

According to petrochemistry characteristics , middle basalts are named quartz tholeiite primarily and southern ones olivine tholeiite .

苦橄白榴岩、橄榄白榴玄武岩为原生岩浆冷凝产物，由金云母二辉橄榄岩成分的上地幔经部分熔融（约3.5-4.3%）所形成。

Based on the petrology , geochemistry and calculation , we suggest that the picrite-leucitite and olivine-leucite basalt were solidified by primitive magma which derived from phlogopite-bearing lherzolite mantle by partial melting , the degree of partial melting is respectively 3.5 % and 4.3 % about .

其中一、三段为陆相喷发的橄榄拉斑、玄武岩、橄榄玄武岩，局部夹火山碎屑岩，厚度分别为49m和15～55m。

The first and third divisions are of marine origin ; lithologically represented by olivine tholeiite and olivine basalt locally With pyroclastic rocks , being 49 m and 15-58 m respectively .

对深海橄榄岩、大洋玄武岩、俯冲带岩石和大洋中脊喷出的热液流体的锇同位素组成进行了研究；

Fourthly , the Osmium isotope composition of the abyssal peridotites , oceanic basalts , rocks in subduction zones and hydrothermal fluids from the Mid Ocean ridge had been determined .

地幔橄榄岩部分熔融产生玄武质岩浆，部分原始地幔岩浆未经变异沿构造通道直接喷出地表形成碧玄岩、碱性橄榄玄武岩；

The basaltic magma was generated by partial melting of peridotites in the mantle . Basanite and alkali-olivine basalt was formed by partial primary magma along structural thoroughfare direct ejected .