玄武岩

Orthogonal experimental method is applied to design experiments of diamond tool wear.B asalt is milled on CNC stone machine with electroplated diamond mill.The diamond mill is made with elec-troplated method and lost maSS of diamond mill is measured with high precise balance.

采用正交实验方法设计金刚石铣刀磨损实验，在数控石材机床上铣削玄武岩，金刚石铣刀采用电镀法制造，铣刀磨损量采用高精密度电子天平测量。

Orthogonal experimental method is applied to design experiments of diamond mill wear. Basalt is milled on CNC stone machine with electroplated diamond mill. The diamond mill is made with electroplated method and lost mass of diamond mill is measured with high precise balance.

采用正交实验方法设计金刚石铣刀磨损实验，在数控石材机床上铣削玄武岩，金刚石铣刀采用电镀法制造，铣刀磨损量采用高精密度电子天平测量。

The SiO2 content of the dike swarms varies from 50.22% to 61.10% and they are basic-intermediate rock series, mainly basic. The Al2O3 content is generally higher than 15% and they are high aluminum basaltic rocks. The lower magnesium index (Mg#=42.77~62.28) and TiO2 content (0.97~2.41%) illuminate that they suffered magnesium-iron minerals' fractional crystallization and that they did not crystallize from original basaltic magma. The values of Na2O/K2O are all above 1, indicating lower K character. Chemically discriminated, these dike swarms are sub-alkaline rock series.

岩墙群的SiO2含量为50.22~61.10%，属于基性和中基性岩类，以基性为主；它们的A12O3含量普遍高于15%，属高铝玄武岩类；具有较低的镁指数（Mg#=42.77~62.28）及TiO2含量（0.97~2.41%），说明它们经历了镁铁质矿物的结晶分异作用，也指示它们不是由原始玄武岩浆结晶；Na2O/K2O都大于1，显示出低钾的特点；岩石化学判别，岩墙群岩石属亚碱性系列。

At the same time,the ages of basalts become older and older from south to north.

同时，海槽玄武岩年龄在空间上具有从南到北逐渐变新的演化规律。

In fact, the HT and LT2 basalts are the dominant magma type in the periphery of the province.

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。

It cooled and hardened forming the "Causeway" or "Middle Basalts".

它冷却和变硬后形成&铜锣&或&中玄武岩&。

The chemical and isotopic arrays formed by basalts indicate mixing of components from two distinct source regions.

玄武岩所形成的化学和同位素阵列表明，它们是由来源于2个不同源区的组分混合产生的。

Tungsten content of host basalts is usually higher than that of their mantle-derived xenoliths.

地幔岩特别是玄武岩中钼含量的高低，对地壳中钼矿床和钼矿集中区的分布有指示意义。

The Tianheyong basalts are basanites, which at least can be subdivided into three types of mineral assemblage.

天和永玄武岩为碧玄岩，至少可以划分出3种矿物共生组合类型。

Based on the field investigation,laboratory experiment and data processing,the basalts are regard as the source rock of ore.

通过野外实地考察、室内实验及资料的分析研究，认为玄武岩在表生水的循环作用下可以带出多种成矿元素而成为矿源体，并在不同的古地理环境条件下形成不同类型的矿床。

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。