threshold depth

The threshold maturity depth of source beds and the primary migration of oil in the Beibu Gulf Basin

北部湾盆地生油层成熟门限深度与石油初次运移的探讨

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Evolution of organic materials is divided into four stages according to total hydrocarbons/ organic carbon; the threshold depth and temperature for oil and gas formation are supposed to be at 2,200 meters and 90 ℃.

同时主要依据总烃/有机碳，将有机质演化划分为四个阶段，确定了油、气生成的起始门限：深度2200米，温度90℃。

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On the basis of analysis of relationship between soil water and groundwater, the paper emphasized that the function of groundwater should be coupled into models of soil water flow and solute transport when the depth of groundwater is less than the threshold of water table depth.

通过深入分析土壤水和地下水之间的相互关系，强调在地下水埋深小于其极限埋深的情况下应把地下水作用耦合到包气带水和溶质运移模型中。

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On the basis of study on its sedimentary environment, sources and evolution characteristics of organic matter, this paper ensures the mature threshold depth and shows good prospects in oil and gas exploration in Hepu basin.

文章在研究其沉积环境、物源及有机质演化特征的基础上，确定该盆地成熟门限深度，表明合浦盆地具有良好的油气勘查前景。

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This sequence of events repeats each time the queue depth builds beyond the threshold configured in TRIGDEPTH.

每当队列深度超过TRIGDEPTH中配置的阈值时，这个事件序列都会重复。

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The decrease of vegetation coverage was due to decline of herbaceous coverage. The threshold depth of groundwater level for coverage degradation was 4 m. This depth was the same as the depth of groundwater for degradation of species diversity.

植被盖度减少始于草本植物盖度受损，与群落多样性受损的临界地下水位相同，发生在地下水埋深大于4m；

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The relationship between the hight of closure of the reservoir and threshold depth for oil generation is studied also.

在研究油藏封闭高度与生油门限关系时推论了油气运移途径及油气藏最后形成的时间问题。

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Methods for determining maturation threshold depth of source rocks based on geochemical parameters of steranes and terpanes

根据萜烷、甾烷地球化学参数确定生油岩成熟门限的方法

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In the course of the axial age humans crossed the threshold into a new depth of moral consciousness.

在轴心时代发展过程中，人类迈了一大步，走向了道德意识的新的深度。

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The geological factors affecting the threshold depth of oil generation

影响生油门限深度的地质因素

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This paper discusses some factors affecting oil-generation threshold depth of the Tertiary basins in East China.

进一步讨论了影响我国东部第三系含油气盆地成油门限值的几种地质因素。

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