变质

High carbon and high molybdenum high speed steel has ...

高碳高钼高速钢具有硬度高、红硬性和耐磨性好等特点，但铸造高速钢脆性大，采用RE -Mg -Ti复合变质处理，可以改变共晶碳化物的形态和分布，使铸造高速钢冲击韧性提高 86 。2 %，热疲劳抗力和耐磨性也明显改善。

Owing to lack of formation temperature data of mylonites, such problems as the formation depth, metamorphic evolution, deformation mechanism, exhumation history of mylonites, relation with host rocks and explanation of isotopic age data are difficult to interpret correctly and reasonably.

提要：在缺少糜棱岩形成温度资料的情况下，糜棱岩的形成深度，与所叠加岩石的关系，变质演化，抬升-剥露历史，矿物的变形机制，同位素年龄数据的解释等一系列问题就很难得到正确合理的解释。

When the continental crust subducted to a certain depth(~90-110 km), almost no hydrous minerals existed in the plate, and nominally anhydrous minerals(NAMs, such as garnet, pyroxene, quartz) in UHP rocks became the main carriers transporting water into the mantle Garnet and omphacite in UHP eclogites at Shuanghe, Dabieshan have been investigated by Micro-FT-IR The results demonstrate that all garnet and omphacite grairks contain structural water occurring as hydroxyl with the content from 30×10^(-6) to 1860×10^(-6)H2O wt.

大陆深俯冲板块到一定深度后（约90~110km），几乎没有含水矿物存在，超高压岩石中名义上无水矿物成为俯冲板块中水的主要载体，是示踪超高压变质流体的重要途径。对大别山双河地区超高压榴辉岩中的石榴石和绿辉石进行了详细的微区傅立叶变换红外光谱分析。

Isotopic age studies of the zircons from both the metamorphic rocks and their anatectic derivatives by the single crystal U-Pb method have been carried out by the authors.

河北平山小觉地区早前寒武纪阜平群的部分岩石，在经历了区域变质高峰之后，又遭受了差异性深熔作用的改造。

An attempt has been made in present paper to advance the early periodic evolution of the earth crust in this region in four stages, by studing and analyzing the features of regional geophysical fields; the constitutional feature, division and correlation of early Pre-Cambrian strata of this region; the facies, formation and palaeogeographical environment; the development and evolution of palaeotectonic deformation and its control of the metamorphic iron ore.

本文从区域地球物理场特征、本区前寒武纪早期地层的组成特点和划分对比、岩相建造古地理环境、古构造变形及其对变质铁矿的控制作用，提出本区地壳早期演化分为四个阶段：1。

Based on analysises of characteristics of regional deformation and metamorphism as well as Carboniferous and Permian relict basins, think Qinling-Dabie orogenic belt might have undergone following Basin-mountain transformational process : the ocean basin developed in Silurian-early Paleozoic; ocean basin subduction began in Ordovician; Silurian-early Devonian continent-continent collision happened and the ocean basin disappeared; Carboniferous- Permian, with the strike-slip and pull-apart along the Shangdan fault, a series of small faulted basins formed on the north Qinling mountainous region composing of Pre-Carboniferous metamorphic stratum.

在解析区域变形变质特征，岩浆侵位的构造演化和北秦岭区石炭—二叠纪残余盆地分析基础上，认为秦岭—大别造山带现今的残余的加里东造山带，可能经历了震旦纪—早古生代洋盆发育，奥陶纪洋盆俯冲，志留纪—早泥盆世碰撞造山，洋盆消失，石炭—二叠纪沿商丹带走滑拉分断陷形成上叠于北秦岭加里东造山带之上的石炭—二叠纪沉积盆地的盆山转换过程。

Graphite resources: minerals buried in the pre-Paleozoic strata of the Jining Group, is a metamorphic sedimentary type, the province's most important matter, in urban areas in the north of Fort Chee-hong, two to six acres.

石墨资源：该矿产埋藏于前古生代的集宁群地层中，属沉积变质型，全省唯此，分布在市区北部的宏赐堡、六亩地两处。

By studying the inorganic CO〓 and helium isotopes in Yinggehai Basin, and investigating the Tertiary lithology and geothermal condition, combined with the results of thermal simulation test, it was suggested that inorganic CO〓 gas principally came from thermal decomposition of Tertiary calcareous shales and Pre-Tertiary carbonate under the burial depth of 6000m, approximately at a strata temperature of about 250℃.

通过系统地剖析莺歌海底辟带气田无机CO〓的碳、稀有气体同位素特征与第三系及古生界基底的岩性及热源条件，结合热模拟实验资料，认为无机CO〓主要来深埋的梅山-三亚组钙质泥岩热分解和前第三系基底碳酸岩的热变质，这种钙质泥岩和碳酸岩热分解产生CO〓的初始温度大约为250℃，相当于埋深约6000m。

In practical study, the essential flow is""on the basis of the study of the faults, strata denuded thickness and original thickness, analyzing the controlling effect of the faults to the sedimentation and denudation, and combined with the areal geology background, reconstructing the basin prototype of each stage"". 2. As the basic theories and methods of the calculation of the denuded thickness, such as, the methods of cosmogenic nuclides, wave equation, apatite fission track, structural sections, acoustic wave, vitrinite reflection, etc, were argued detailedly , and their applicable ranges were analyzed , the denuded strata thickness of each structural layer layer of pre-Tertiary was reconstructed.

对宇宙成因核素法、波动方程法、裂变径迹分析法、构造横剖面法、声波时差法、镜质体反射率法等计算剥蚀量方法的基本原理进行充分论证、改进，分析了各方法的适用范围，在此基础上，综合充分运用上述方法，计算了济阳坳陷前第三系各构造层在不同时期的剥蚀量，绘制了中生代时期古生界顶面的地层剥蚀量等值线图、新生代时期古生界顶面的地层剥蚀量等值线图、白垩纪沉积时侏罗系剥蚀等值线图、新生代沉积期白垩系剥蚀等值线图、新生代沉积期侏罗系剥蚀等值线图等图件，并通过对古生界地层的热变质程度分析，确定了有1500～2000m的早、中三叠世的原始沉积地层在晚三叠世被剥蚀殆尽。3。

"The most notable uses of spices and herbs in very early times were in medicine, in the making of holy oils and unguents, and as aphrodisiacs; they were also used to flavour food and Beverages and to inhibit or hide food spoilage."

在远古，香料和香草最主要的用途是制药、制造圣油和油膏，又可用作春药。也用作食物和饮料的调料，并抑制或遮掩食物变质。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。