岩石的

These layered rocks measure only 10 centimeters (4 inches) tall and are thought to be either volcanic ash deposits or sediments carried by water or wind. Data from the panoramic camera's near-infrared, blue and green filters were combined to create this approximate, true-color image.

关于这些层状岩石，有的测量数据约10厘米(4英寸)，相对高一点的地方，目前被认为或许是火山灰的沉淀物，抑或是风干沉积后的河床岩石层，当然这一切在被证实之前仍仅仅是猜测。

The mathematical model is built based on the theory of valence bond theory and percolation network theory.

在大量实验研究的基础上从理论上解释了岩石热开裂的影响因素和作用机理，并引入了逾渗理论和价键理论建立了岩石热开裂的数学模型。

The characteristics of these rocks in petrology, petrochemistry ,trace element geochemistry and their mineralization are introduced in this paper.

文章论述了与铜矿化有关的中酸性浅成—超浅成侵入体的岩石学、岩石化学、微量元素特征，并阐述了该类型铜矿化的基本特

The PGE distributive patterns are the PtPd type, the Pt/Pd ratios of 0.32-0.68 are between the values of enriched sulfide tholeiite (0.38) and primitive upper mantle (1.36), and the similarity of partition patterns of chondritenormalized REE, MORB-normalized trace element and primitive mantle normalized PGE for the rocks of the three phase zones, indicate the Baimazhai intrusive body I formed by the evolution, liquation, intrusion and diagenesismetallogenesis of basaltic magma.

铂族元素配分模式为Pt-Pd型，w/w比值为0.32~0.68，介于富硫化物拉斑玄武岩(0.38)和原始上地幔(1.36)之间，以及稀土元素配分模式、微量元素蛛网图和铂族元素配分模式中不同岩石配分曲线的相似性揭示3个相带不同岩石之间的高度一致性，展示基性-超基性岩形成于玄武质岩浆演化、熔离及岩浆一次性侵入、分异成岩成矿的特征。

Maximum entropy method is used to generate probability density functions of rock mechanics parameters from sample data.

1前言 岩石工程的可靠性分析，首先要以一定的概率模型来描述岩石力学参数所具有的不确定性。

But, the crust rocks (included to accumulating complex, sheeted sill complex and lava) is formed by crystallization of the magma. The different rock associations of pyroxenite gabbro and troctolite gabbro in the accumulating complex are related to depth of formation of magmatic chambers and oxidation state of magma in the spreading ridge.

而壳层岩石(指堆积杂岩、岩墙杂岩、熔岩)则是由岩浆结晶作用形成的；堆积杂岩中出现辉石岩辉长岩和橄长岩辉长岩的不同岩石组合则与堆积岩岩浆房出露的深度和氧化状态有关。

There is an introduction to Mars meteorites, and detailed descriptions of individual Mars meteorites. Each document about the individual meteorites contains all existing information such as petrography, whole rock and mineral chemistry, radiogenic, cosmogenic and stable isotope data and weathering.

该站点详细的介绍了火星陨石及其各自的具体特点，这些以PDF格式保存的档案文件包含了岩石记述学、岩石和矿物化学、射电数据、宇宙测年数据、稳定同位素数据等。

At first, by studying on the mineral constituents, texture and structure, Scleroscope hardness and Vickers hardness etc. of the stone, a fast classifying way of stone machinability was proposed. Based on the Scleroscope hardness, mineral constituents and texture of the stone, it was successful applied in classifying the main Chinese natural stone.

首先，通过对石材的矿物组成、组织结构、肖氏硬度和显微硬度等的分析和研究，提出了以岩石肖氏硬度为主辅以矿物成份和组织结构来快速定性确定岩石可锯性的方法，并成功地对我国主要石材进行了分级。

A very common sedimentary rock is called shale ,which is a soft rock and was obviously formed by being deposited on the sea bed.

非常普通的沉积岩石被称作页岩，一种很软的岩石并且很明显是通过在海床上沉积来形成的。

Curie point isotherm is the temperature isotherm where ferromagnetic minerals in the rocks change from ferromagnetism into paramagnetism because the temperature increases to the Curie point. Below this isotherm, the rocks are thought to be almost non-magnetism because their temperature is higher than the Curie point. Sino-US two-ship expanding spread profiles eastern transect in 1985 and Sino-Japan Ocean Bottom Seismography profile in 1993 (OBS93) crossed the major structural belts and basins in the northeastern South China Sea.

居里面是岩石中铁磁性矿物因温度升高达到居里点而由铁磁性变为顺磁性时的温度界面，在这个面以下的岩石由于温度超过居里点而被认为几乎无磁性。1985年中美双船地震扩展排列东剖面和1993年中日合作海底地震仪剖面(OBS93)均穿越南海东北部各主要构造带和盆地，获得了完整的地震及重、磁资料。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。