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首页> 外文期刊>Earth, planets and space: EPS >Relations between the thermal properties and porosity of sediments in the eastern flank of the Juan de Fuca Ridge
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Relations between the thermal properties and porosity of sediments in the eastern flank of the Juan de Fuca Ridge

机译：胡安德富卡山脊东翼沉积物的热学性质与孔隙度的关系

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摘要

The empirical relations of the thermal properties (thermal conductivity, heat capacity, specific heat, and thermal diffusivity) to the porosity and mineral composition of clay and sandy sediments recovered in the eastern flank of the Juan de Fuca Ridge are examined using the observed thermal properties, index properties, and mineral composition of the sediments. Observed thermal conductivity-porosity relations are explained using the geometric mean model. The observed relations of heat capacity and specific heat, respectively, to porosity are given by the arithmetic mean formula. A new model for the sediment thermal diffusivity-porosity relation is proposed based on models of thermal conductivity and heat capacity. This model, expressed by the geometric mean model with a correction function for the porosity and heat capacities of grain sediment and pore-filling fluid, explains the observed thermal diffusivity-porosity relations. These thermal property models are applicable to thermal properties of other sediment lithology types and are useful as standard models for estimating the thermal properties of marine sediment.
机译：利用观察到的热特性，研究了热特性（导热率，热容量，比热和热扩散率）与在胡安德富卡岭东翼回收的粘土和沙质沉积物的孔隙度和矿物成分的经验关系。 ，指标性质和沉积物的矿物成分。使用几何均值模型解释了观察到的导热率-孔隙率关系。算术平均公式给出了观察到的热容和比热分别与孔隙率的关系。基于热导率和热容量模型，提出了一种新的沉积物热扩散率-孔隙率关系模型。该模型由具有对谷物沉积物和孔隙填充流体的孔隙率和热容量的校正函数的几何均值模型表示，解释了观察到的热扩散率-孔隙率关系。这些热性质模型适用于其他沉积物岩性类型的热性质，并且可用作估计海洋沉积物热性质的标准模型。

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