玄武岩的

Based on the anisotropy of magnetic susceptibility, the lava flows in this section were formed by two vents situated on north-northeast and north-northwest, which is consistent with field observation.

基于磁化率各向异性测定，张北汉诺坝玄武岩由北北东和北北西的两个古火山口喷发而成，这与野外观察是一致的。

On an arid outcropping of basalt in northwestern Australia, some of the oldest rocks on Earth lie exposed to the fierce sun.

澳洲西北部，一脉玄武岩矿裸露在严厉的日晒下；这是地球上最老的岩石之一。

The ophiolites can be divided into two groups at least; one lies in the Kuhai complex and intersected by Caledonian island granite, which may be attributed to Caledonian or pre-Caledonian ophiolite association; the other lies in the Early Permian — Early Triassic Ma'erzheng Fm. of Buqingshan Gr., including ultramafic rock, basalt, diabase dike and pelagic siliceous-argillaceous association, and Early Permian radiolarian are found in the silicates, which reflect that the time is Hercynian.

其中蛇绿岩组合至少可分出两套，其一就位于变质的苦海杂岩中，被加里东期岛弧型花岗岩侵入切割，可能属加里东期或前加里东期的蛇绿岩组合；其二就位于早二叠世—早三叠世布青山群马尔争组中，包括超镁铁质岩、玄武岩、辉绿岩墙及远洋硅泥质岩组合，其中硅质岩中发现有早二叠世放射虫，说明其形成于海西期。

In order to resolve the part distortion problem of 16Mn scaleboard used in the sluiceway of No.

为解决 5 #、6#高炉冲渣沟原 16Mn衬板因冲蚀、腐蚀磨损严重，局部翘曲变形的问题，采用耐蚀性及耐磨性均较好的玄武岩铸石板作为冲渣沟内衬。

3Ensemble character of structural planes as follows: In left dam abutment, meta basalt schistosity is main, and the structure is clockwise. Low dip angle jointing didnt develop in rock mass; In right dam abutment, rupture and jointing structural plane is main, and the structure is reversed. The structure was of obvious macroscopical slaty character. Constructional soft rock mass belt with some thickness developed.

3通过对上述结构面的分析，得出其总体特征为：左坝肩以变玄武岩片理为主体，呈顺向结构，岩体内缓倾角节理极不发育；右坝肩主要为断裂及节理型结构面，呈反向结构，且具有明显的宏观板状结构特征，并发育有一定厚度的构造软岩带。

The central peaks of several craters on the flanks of Syrtis Major are made up of an even more silica-rich rock, granite, that may have formed by extreme crystal separation or by large-scale remelting of earlier basalts.

在大三角侧面，几个火山口的中间尖点是由一种矽含量更高的岩石──花岗岩所构成，可能是经极度晶体分化，或早期玄武岩大範围重新熔融而形成。

The greenstone belt is a typical volcanic-sedimentary formation formed by metabasic-acid volcanic rocks and partly metasedimentary rocks. The bimodal volcanic rocks are mainly tholeiite, which transforms upward into calc-alkali volcanic rock series.

绿岩带为典型的变质基性－酸性火山岩及部分变质沉积岩系构成的火山-沉积建造，火山岩以拉斑玄武岩为主，向上过渡为钙碱性火山岩系列，表现为双峰态型特点。

In 1898 alone, several million cubic yards of traprock provided building material for the growth of nearby Manhattan Island, by exploding more than150 tons of dynamite in the mountain rock.

仅1898年就有数吨炸药用来开山取石，数百万立方码的玄武岩被开采运走作为曼哈顿城区的建材。

In general, the composition of lower crust is close to basalt and the composition of upper crust is similar to granite.

一般来说，下地壳的成分接近于玄武岩，而上地壳的物质成分与花岗岩相似。

The petrophysical properties of volcanic rock reservoirs in Junggar Basin are generally characterized by the following: the acidic lava and auto brecciated lava are the best, especially the petrophysical properties of auto brecciated lava and andesites after the tectonic movement and denudation process in the later stages are superior to those of basalts.

准噶尔盆地火山岩储层物性一般特点是：酸性熔岩、火山角砾岩最好，特别是经后期构造运动和溶蚀作用改造后的火山角砾岩；安山岩的物性总体优于玄武岩。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。