岩石化学

Because a radioactive form of argon is produced by decay of a naturally occurring radioactive potassium isotope, it can be used to date rocks and samples more than 100,000 years old.

因为它是稀有天然放射性同位素钾衰变而产生的，所以可以用来测定十万年以上的岩石年龄和采样。属类：-〖化学

As our energy needs continue to grow and as oil and gas are less able to satisfy the demand for fuel, coal is becoming an extremely important chemical sedimentary rock once again.

当我们对能源的需求不断增长，当石油和天然气还不能满足我们对燃料的需求时，煤便成了一种极其重要的化学沉积岩石。

Transuranic waste; uranium; radioactivity; nuclear waste; geology; rocks; hydrogeology; Quaternary; stratigraphy; ground water; hydrochemistry; UK; Cumbria

关键词：超铀元素废弃物；铀；放射能；原子能工业废料；地质；岩石；水文地质；第四纪；地层学；地下水；水质化学；英国；坎布里亚郡

Samples of the typical hot springs of water, gas, tufa and rock were collected and analyzed systematically.

本文系统地采集了中国西南地区各地温泉水的水化学样品、气体样品及泉华样品、岩石样品，对各类样品进行了有目的的分析。

The shapes, occurences, rock types, mineral components and Petrochemical components of three ultrabasic rock groups all have different characteristics and show certain regularities. K-Ar and Sin-Nd iso...

各岩群的形态、产状、岩石类型、矿物成份、化学成份各有特点，表现出一定的规律性。K－Ar及Sm－Nd同位素年龄表明，这些超基性告形成于中元古宙、海西期及印支期。

Our project is based on Cenozoic volcanic rocks and deep seated xenoliths in it to reconstruct the source composition and ctructure. We did field investigation, collection of samples, determination of age and composition characteristics of selected samples. The new achievements are following. 1 recognized a potassic metasomatic source of the Cenozoic volcanic rocks through an integrated research of volcanic rocks and their sources. 2 analysis of TM images suggests the Tuoyun basin is a basin with a volcano group instead of a simple volcano-tectonic basin. We found several volcanic craters and cone, and detected three such craters. 3 systematic reseach of volcanic sections and collection of samples both of volcanic rocks and xenoliths, the later includes peridotite, granulite, gneiss and variety of megacrysts. This is propitious to our further research at this rigion. We would like to point that we collected some peridotite large than 20cm in diameter. It could used to variety of analysis and end the history without mantle chemistry records in the region. 4 we got a U-Pb SHRIMP age of 3.87 Ma for the Kangxiwa basalt.It is the youngest record of U-Pb SHRIMP age in China and provide a chronology restriction for last uplifting of Tibet plateau. 5 the investigation of alkali syenite-synogranite in Taxkogan suggests that the origin of Parmir syntex is related to the Cenozoic magmatism.

本项目立足于从火山岩属性和深源捕掳体反演源区成分与结构两个途径，利用火山岩综合研究成果对地幔源区进行了初步反演，提出源区经受过强烈钾质交代的观点；对重点工作区TM图像进行了初步解译，新发现若干了火山口，并对其中三个火山口作了实地查验，为进一步全面深入开展该区的火山地质学及相关科学问题打下了良好基础，认为托云盆地是一个火山群，而不是一个单一的火山构造盆地；系统测制了火山岩剖面，新采集了一批重要的火山岩和深源岩石捕虏体样品，为下一步工作打下基础，特别是采集到了直径打20cm的幔源橄榄岩包体，可用于各种测试，将可以结束西部造山带没有地幔岩化学分析结果的历史；对康西瓦玄武岩进行了测年分析，取得了我国目前最年轻的锆石U-Pb SHRIMP年龄，对青藏高原挽近地质时期的隆升提供了年代学约束；对帕米尔东缘塔什库尔干碱性岩体的动力学意义进行了探讨，提出青藏高原西部构造结的形成与岩浆活动有关的观点。

Direct observations and measurements on deformational and sedimentary structures, fluid activities, physical properties, and chemical compositions of core samples from accretionary prisms at different pressure and temperature settings are critical to understanding seismogenic mechanisms of subduction zone earthquakes.

对增生楔不同压力-温度条件下的构造变形、流体活动、沉积特征、岩石物性和化学组成等多方面的直接观测，可以帮助分析俯冲带地震的蕴育和发生的环境与机理。

Author discussed geological characters of vein rock and co-relation with auriferous mineralization, and indirectly concluded the relationship of auriferous ore and rock body.

从岩石学、石化学、量元素、位素等方面讨论了脉岩的地质特征及其与金矿化的关系，可间接推出金矿与岩体的关系。

The organic chemical knowledge is impenetrate petroleum industry.

石油是赋存于地下岩石孔隙中的可燃有机矿产，其化学组成以有机化合物为主。

The variations of iron species not only affect the lithological properties of sedimentary rocks, such as color, but also reflect the paleoenvironments of the sedimentary rocks.

岩石中的铁元素及其化学种是影响其岩性特征，包括颜色的一个重要因素，并进一步影响遥感技术应用的图像解译和谱段选择。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。