玄武岩

The Tertiary basaltic rocks are discontiously distributed from the west to the northeast of Sudan, in the Sahara Desert, overlying the Cretaceous clastic rocks. The authors of this paper found a kind of columnar jointing in the Cretaceous clastic rocks in the Mellit area, western Sudan.

笔者在苏丹西部Mellit地区白垩系碎屑岩中发现一种罕见的柱状节理，经研究认为是沉积岩层受到中新世喷发的玄武岩熔岩流的烘烤而失水收缩形成的。

However, relating to investigate the modes, courses and characteristics of the orogenetic process in Paleozoic and after orogenetic process, the cognitive divergence have still occurred.

通过对新疆北东部地区不同构造区带构造作用的方式、过程和特点的研究，确定：①南天山榆树沟高压麻粒岩地体的正变质原岩是一个基本完整的蛇绿岩套，其经历了俯冲至下地壳的高压麻粒岩相、构造抬升至深地壳麻粒岩相以及快速构造折返至角闪岩相的变质过程，代表了南天山洋壳俯冲、变质、随后折返的过程，并首次确定了变质过程的PTt轨迹；②奥陶纪末期中天山北缘发生洋盆俯冲、地体增生作用，此时萨日达拉地区处于岛弧活动带；中石炭世晚期中天山小型洋盆关闭，准噶尔地块与伊犁—中天山板块斜向对接随后发生脆韧性质近水平高温低速右行走滑剪切；③根据巴音沟地区不构成蛇绿岩套有效成分的硅质岩具有与活动大陆边缘密切相关的地球化学特征以及洋中脊玄武岩显示其岩浆源区受到消减带流体交代作用的影响，结合区域地质资料，首次提出巴音沟蛇绿岩带所代表的洋盆古构造环境为弧后盆地，并于早石炭世至中石炭世末期间，经历了扩张、收缩和闭合过程；④首次在克拉麦里蛇绿混杂岩带中分解出具有N-MORB、T-MORB与OIB三种不同类型的火山岩岩石组合，反映了洋盆俯冲

Nominally anhydrous minerals, clinopyroxene, orthopyroxene and olivine, in peridotite xenoliths hosted by Cenozoic basalts from Panshishan, Lianshan and Fangshan of the Subei basin, eastern China have been investigated by Micro-FTIR for their water contents.

对来自苏北盆地盘石山、练山和方山地区新生代玄武岩中的50个橄榄岩包体矿物进行了系统的微区傅立叶变换红外光谱分析。

The Yiyang paleovolcanic suite in Hunan is recognized at Shizuitang and Dadukou, Yiyang City, Hunan Province, covering an area of about 1km^2 and 16km^2 respectively. The volcanic suite consists predominantly of komatiites and tholeiites.

湖南益阳古火山岩分布于益阳市石咀塘和大渡口两地，出露面积分别约为1km^2和16km^2，主要由科马提岩类和拉斑玄武岩类组成。

The petrology and geochemistry indicate that the protoliths of aluminum-rich gneisses are aluminum-rich pelitic and pelitic arenaceous sedimentary rocks, the protoliths of basic granulites are continental tholeiitic basalts. Therefore, the khondalite series may be produced at continental margin.

岩石学及地球化学的初步研究表明富铝的片麻岩的原岩为富铝的泥质和泥砂质沉积岩，所夹基性麻粒岩的原岩可能为大陆拉斑玄武岩，这套孔兹岩系的原岩可能形成于大陆边缘环境。

Based on detailed studies of petrographic characteristics and major elements of minerals, the authors analyzed trace elements of Cpx in the peridotitic xenoliths from Jining area, Inner Mongolia.

在详细岩相学特征和组成矿物主元素分析基础上，重点对内蒙古集宁玄武岩中橄榄岩包体的单斜辉石进行了激光原位微量元素研究。

Abundant peridotitic xenoliths had been found in the Dashihe Cenozoic basalts in Jiaohe of Jilin Province, northeastern China.

吉林省蛟河市境内大石河新生代玄武岩中含有丰富的地幔橄榄岩包体，详细的岩石学与矿物学研究显示，这些包体的主要岩石类型为尖晶石二辉橄榄岩-方辉橄榄岩，未发现石榴石橄榄岩。

Based on petrographic, major and

事实上，HT和LT2玄武岩也是该大火成岩省边缘部分的主要岩浆类型。

Petrologic studies indicate that they belong to tholeiitic series, calcalkaline series and kalibasalic series respectively.

岩石化学研究证明，它们分属拉斑玄武岩系列、钙碱性系列和钾玄岩系列。

The actual chemical make-up of rocks is complex, so the conventions of petrological analysis pretend that these metals are present in basalt as their oxides.

然而构成这种岩石的化学元素十分的复杂，因此根据常规的岩石分析得出出现在玄武岩里的金属都是其氧化产物。

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。