讨论了化探低密度采样和混样分析问题。
Low density sampling and mixed sample analysis are dealt with in this paper.
是用无机组分反映油气富集的一种化探方法。
C is a geochemical prospecting method using inorganic constituents to reflect abundance of oil and gas.
这就是区域化探扫面应用丰度模型法的依据。
That is the basis of regional geochemical. exploration with abundance-model method.
证明化探异常评价是快速发现矿床的重要途径。
Geochemical anomaly assessment is proved to be an important way to find ore deposit quickly.
水系沉积物元素迁移机理是区域化探方法的理论基础。
The migration mechanism of elements in stream sediments is the theoretics part of regional geochemical surveys.
同时在化探数据的处理上引入了分形理论及背景值分离的方法。
In processing geochemical data, the fracture theory and background value separating method are introduced in the system.
该方法已成功应用于化探样品分析中，并得到了令人满意的结果。
This method is already successfully applied to chemical exploration sample analysis with satisfactory result.
本文介绍了在化探编图中，对数据系统误差进行校正的一种方法。
A correction method of systematic errors of data for geochemical map compilation is introduced in this paper.
井中化探逐渐成为鉴别油气属性、识别烃源岩特征的重要技术方法。
The borehole geochemical prospecting has been employed as an important technique in the recognition of source rocks and oil and gas properties in the last decade.
石油是在人的头脑中，不是在物探圈闭中，也不在化探异常中。
Petroleum is in one's mind, Neither in trap of geophysics nor in anomaly of geochemistry.
金成矿受地层岩性、构造等因素的控制，在金矿床上均有化探金异常。
The geochemical gold anomaly areas in south side of the two thrust nappe structure belts are key prospecting for further ore exploration.
本文通过实例，介绍了吉南玄武岩覆盖区水化学异常查证的化探工作方法。
With practical examples, the present paper has expounded the geochemical prospecting method for investigating and verifying hydrochemical anomalies in the basalt-covered area of southern Jilin.
通过实际应用，我们认为：聚类分析在化探异常评价中，至少有以下作用。
Through practical application, we consider cluster analysis can play a role in evaluation of geochemical prospecting anomalies.
本文研究如何用地质统计学方法处理服从对数正态分布的化探数据的问题。
This paper studies how to use the geostatistical method in processing geochemical data, which follows the lognormal distribution.
目的用紫外分光光度法及荧光分光光度法优化化探样品中芳烃的测试条件。
Aim To optimize the measurement condition of hydrocarbon in geochemical samples by ultraviolet spectrometry and fluorescence spectroscopy.
水系沉积物中铜异常偏弱、流长偏短是青海干旱草原区化探异常的普遍现象。
It is a common phenomenon in the geochemical exploration in arid prairie of Qinghai that the dispersion length of copper anomaly is short and the anomaly is weak in stream sediments.
随着勘查地球化学应用和理论研究的深入，常规的化探方法技术已走向成熟。
With the development of application and theory of Exploration Geochemistry, conventional geochemical techniques have gradually become mature.
通过开展物、化探地质找矿工作，发现矿区深部及走向方向有较好的找矿前景。
Through geophysical and geochemical exploration work, the deep and trending direction of this area has better prospecting.
利用样本排序方法对各种化探异常识别模型的处理效果和优劣性进行了比较。
How to compare the differences in aspect of the anomaly recognition effect of these different models? The authors advance the sample ranking method to discuss this problem.
该工作为该区下一步勘探指明了方向，也为在沙漠区进行化探工作积累了经验。
The work has demonstrated the way for further work and also accumulated experience for geochemical exploration in desert areas.
方法用优化后的条件对陕北地区化探样品中芳烃的石油醚萃取液进行了光谱分析。
Methods the extracted liquid with petroleum ether from the geochemical samples in the north of Shaanxi was spectrally analyzed by using the optimized measurement condition.
研究地质异常演化规律对揭示成矿机理，查明和圈定物、化探异常更具实际意义。
The study of evolution regularity of anomaly has a more practical significance in revealing metallogenic mechanism, examining and confining the geophysical and geochemical anomalies.
在布置化探异常验证时，常把异常全部置于检查区内，这样往往要浪费不少工作量。
When making an arrangement for the anomaly verification of geochemical prospecting, a large amount of work is often wasted because all anomalies are usually placed in inspection areas.
区域化探资料不仅可以用于矿产勘查，而且，在基础地质研究中也可发挥重要作用。
Regional geochemical exploration data can be used to explore ore resources, and play an important role on the fundamental geological researches.
岩性油气藏的化探罐顶气分析指标往往具有假象，影响对储层油气性质的正确识别。
Sometimes, the light hydrocarbons in head space index of lithological oil-gas pool have gloss. The gloss affects exact distinguish of oil-gas pool characteristics.
在区域化探中必须应用三层套合方差分析对样品的采样误差和分析误差进行统计分析。
In local chemical exploration, the variance analysis of three-stage-model must be applied to estimate analytical uncertainly and sample-collecting error.
区域化探资料处理主要是进行数据预处理、背景分析、相关场分析、多元统计分析等。
It is the region geochemistry pretreatment to pretreat the originality data and to analyze the background and correlation filed and statistics data.
为解决区域化探中的多图幅系统误差校正问题，提出了一种最小二乘准则下的计算方法。
To solve the problem about multi-map systemic error correction in regional geochemical exploration, a computing method based on the least squares methods is developed.
本文运用井中化探的三个实例，对非常规的油气藏盖层和储集层的地化特征进行了分析。
This paper analyse the geochemical characteristics of unconventional reservoir and cover through three examples of geochemical exploration in drill.
不同指标的异常范围叠合好，异常范围略大于气藏的面积，说明化探指标组合是有效的。
The anomaly areas of different indicators are well superposed and they are slightly larger than the area of gas reservoir, which shows that the geochemical indicator combination is effective.
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