岩浆抬升，在火山内部累积以及被挤压到地层的破裂位置——这些事件都会在岩浆从地表露头之前引发化学信号。
The rise of magma, its accumulation in Chambers, its propulsion into fractures-these events produce chemical signals that reach the surface well ahead of the magma itself.
残存于地质地层中的有机化学物质，当这样的地层被发现时，可以预测出那个地层形成时期的生命活动现象。
Chemical fossils Particularly resistant organic chemicals present in geological strata that are thought to indicate the existence of life in the period when the rocks were formed.
控制流体经过滤进入地层的损失所用的化学添加剂。
A chemical additive used to control the loss of fluid to the formation through filtration.
判断油气藏保存条件的优劣，除了盖层和断层封闭性之外，还有油气水的化学特征，如地层水的交替或油气散失。
Conditions of hydrocarbon accumulation and preservation in reservoirs behave in chemistry of formation water besides sealing of caps and faults.
在塔里木盆地沉积岩时间序列化学数据的应用实例中，解决了石油井下地层预测和归类问题。
While applying the method to the time series data of sedimentary rock in Talimu basin, the prediction and classification of layer in petroleum well have got solution.
根据物理化学原理，建立了完全封闭条件下构造抬升剥蚀后地层流体压力的定量计算公式。
Based on the principles of physical chemistry, a formula is established for quantitatively calculating formation fluid pressure after tectonic uplifting and erosion in a closed system.
当隧道工程施工遇到含黄铁矿的地层时，黄铁矿氧化形成的酸性环境以及其引发的一系列化学反应会对隧道混凝土衬砌的耐久性带来不利的影响。
When there is pyrite-bearing strata in tunnel construction, oxidization of pyrite will result in formation of acidic environment and bring adverse effect on durability of concrete lining.
对于严重出砂地层的油水井，即使采取了机械或者化学防砂措施，也不能保证油水井的长期稳产，不得不提出防砂管柱进行更换。
Generally, it is not enough to take mechanical or chemical sand-prevention methods for those high sand production Wells, resulting in replacing the sand-prevention tubings.
花沟地区的气体地球化学特征与众不同，可能存在碳酸盐地层变质脱气产生的CO_2的混入，但具体原因尚待进一步研究。
CO_2 gas pools in Huagou district have particular geochemical character, maybe there were some decarbonated CO_2 added into the gas pools, need further research work.
区域地层微量元素地球化学研究表明，湘西所出露的地层均显著富集砷，是砷的高区域地球化学异常区。
The study on regional strata trace elements shows that the strata of Western Hunan are rich in arsenic, and Western Hunan is a high regional geochemical abnormal region for arsenic.
将异常低压的形成机制归纳为4大类：1）构造抬升和地层剥蚀、孔隙水化学作用引起的孔隙体积增大；
The forming mechanisms of subnormal pressure can be divided into 4 types: 1)increase in pore volume caused by tectonic uplift and formation erosion, or chemical effects of pore water;
通过该区太古界一新生界氟的地层地球化学剖面及岩浆岩和土壤中氟的丰度的研究，论证了该区为一高氟的地球化学区。
This region is demonstrated as a geochemical region with high fluorine through studies on the fluorine contents of soils, magmatic rocks and the Archean?Cenozoic strata geochemical profile.
化学注浆是解决难灌注地层和低压条件下的矿井水砂灾害防治的有效手段。
The chemical grouting is one of effective methods to treat mine quicksand in difficult grouting strata with low grouting pressure.
目前，已有很多方法应用于沉积盆地地层剥蚀的研究，包括地质方法、地球化学方法及地球物理方法等。
At present, many methods have been employed in the research of the strata denudation in sedimentary basin, including geologic method, geochemistry method and physical geography method, and so on.
碳循环是一个生物地质化学循环圈，碳通过此循环在生物圈、土壤圈、地层、水圈、大气中交流。
The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.
这种含油气性预测方法是建立在综合地层、构造、岩性-岩相、地球化学和本文地质指标和对每种指标进行评价的基础上的。
This method is based on the comprehensive indexes, such as strata, structure, lithology-lithofacies, geochemistry and hydrogeology, and evaluations of these indexes.
金的区域地球化学场分布受断裂构造、地层及岩浆岩控制。
The distribution of the regional geochemical field of gold is controlled by fault structure, stratum and intrusive rocks.
同时对地球化学异常层进行了梳理搜索，并对区域地层进行了地球化学对比，从而建立起区域地球化学格架。
Moreover, carding and search of geochemical anomalous beds were done, and geochemical correlation of regional strata was made, which led to the construction of the regional geochemical framework.
化学化石(烷烃和卟啉)是前寒武纪地层中生命存在的唯一证据。
Chemical fossils (e. g. alkanes and porphyrins) are often the only evidence for life in rocks of PRECAMBRIAN age.
地层水中苯的痕量分布作为油气藏分子示踪的研究，得到国外石油地球化学家们的广泛重视。
Geochemists paid more attention to the study of reservoir molecule tracing with the trace amount distribution of BTEX in formation water.
从变质杂岩地层层序、岩石化学、微量元素特征来看，它与绿岩带有许多相似之处。
It has many similarities to the greenstone belt in respect to the sequence of metamorphic complex, petrochemistry and trace element characters.
渤海湾盆地廊固凹陷地层水纵向上特征复杂，地层水化学动力带的分布具有明显分带性。
The vertical distributions of the formation water chemic and dynamical belts have obvious zoning features.
通过对沥鼻峡背斜地层含水性、隔水性、地下水流向及其水化学特征的研究，得出了该区地下水的径流特征及其水力联系，并据此研究了该区水文地质对煤层气富集的控制规律。
The drain character and hydraulic linking are studied by analyzing the property of water-bearing and water-resisting, groundwater flowing and hydrochemistry character in Libi Gorge anticline.
目前国内外测定油藏连通性的方法大多采用电缆测井、地层对比、地球化学、压力测试、油藏数值模拟及示踪剂等方法研究地层连通性。
There are several conventional methods to measure stratal connectivity such as wireline logging, strata correlation, geochemistry, pressure test, reservoir simulation and tracer.
岩石地球化学示踪和地层学研究表明，冈底斯带石炭纪为伸展背景下的冈瓦纳陆缘裂陷环境。
Geochemical and stratigraphical studies suggest that the tectonic setting of the Gangdese region is depressional rifting to the northern margin of Gondwanaland.
依据地层组成结合岩石化学研究，在“构造混杂岩”基础上建立了“双列岛弧”的“沟弧盆体系”模式。
According to stratigraphic compositionand lithochemistry, a"trench-arc-basin system" model for the dual-arrangedisland arc is established on the basis of the "tectonic melange".
油层中地层水的化学特征可能等同于邻近水层的化学特征，也可能与之完全不同。
The formation water in oil layer may have the same chemical features as the neighboring water lay-ers, or in contrast with each other.
针对陇东油田的结垢现状与特点，分析了结垢机理及其影响因素，介绍了目前应用于陇东油田油水井、集输系统的刮垢刀、高压除垢、长效地层清防垢等物理化学技术。
In view of the present situation and characteristics of the scale deposit in Longdong Oilfield, this paper analyses the mechanism and the influence factors of scale deposit.
针对陇东油田的结垢现状与特点，分析了结垢机理及其影响因素，介绍了目前应用于陇东油田油水井、集输系统的刮垢刀、高压除垢、长效地层清防垢等物理化学技术。
In view of the present situation and characteristics of the scale deposit in Longdong Oilfield, this paper analyses the mechanism and the influence factors of scale deposit.
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