4 edition of Thermal conductivity of some rock-forming minerals: a tabulation found in the catalog.
Thermal conductivity of some rock-forming minerals: a tabulation
|Statement||by William H. Diment and Howard R. Pratt|
|Series||Open-file report -- 88-690, U.S. Geological Survey open-file report -- 88-690|
|Contributions||Pratt, H. R. 1938-, Geological Survey (U.S.)|
|The Physical Object|
|Number of Pages||15|
In the field of the efficiency of very shallow geothermal energy systems, there is still a significant need for research activity. To ensure the proper exploitation of this energy resource, the decisive geophysical parameters of soil must be well-known. Within this study, thermal conductivity, as a fundamental property for evaluating the geothermal potential of very shallow geothermal systems Author: David Bertermann, Johannes Müller, Simon Freitag, Hans Schwarz. Full Text; PDF ( K) PDF-Plus ( K) Citing articles; Thermal conductivity of geosynthetic clay liners. Mohammad Asgar Ali, a Abdelmalek Bouazza, b Rao Martand Singh, c Will P. Gates, b R. Kerry Rowe d a Department of Civil Engineering, 18 Alliance Lane, Monash University, VIC , Australia.. b Department of Civil Engineering, 23 College Walk, Monash University, VIC , Cited by:
Second, the approach is applied on core data considering the anisotropy of some rock forming minerals. The numerical value of estimated thermal conductivity is controlled by the quartz content. Sheet-silicates control anisotropy and fabric in gneisses and their thermal consequences. Unless a superscript letter indicates another reference, the values for conductivity and density were taken from K. Horai, “Thermal conductivity of rock forming minerals.
BeTemper 1. Introduction and general context mineral phase (Diment, ) and fabric anisotropy. Thermal conductivity is also a function of Thermal conductivity of some rock-forming minerals: a tabulation. USGS Open file; Report , US Geol. Survey, Denver Co., pp. In heat transfer, the thermal conductivity of a substance, k, is an intensive property that indicates its ability to conduct heat. Thermal conductivity is often measured with laser flash analysis. Alternative measurements are also established. Mixtures may have variable thermal conductivities due to composition. Note that for gases in usual conditions, heat transfer by advection is the dominant mechanism compared to conduction. This table shows thermal conductivity .
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Get this from a library. Thermal conductivity of some rock-forming minerals: a tabulation. [William H Diment; Howard R Pratt; Geological Survey (U.S.)].
Thermal conductivity as a function of density for rock-forming minerals. Closed circles are for silicates; open circles, for non-silicates. The numbers by the data points are the mean atomic weights. Sulphides are not plotted in this diagram.
phous crystals. Examples are shown in fig. 3 for garnets and by: where k 1 is the thermal conductivity of the rock, k 2 is the thermal conductivity of the fluid in the fractures, and l 1 and l 2 are the thickness of the rock and fractures, respectively.
For an isotropic rock of thermal conductivity of 3 W m −1 K −1 and fracture porosity of 1, 5, and 10%, the effective anisotropy is predicted to be Cited by: This includes most metals, but note that diamond has the highest thermal conductivity known (five times higher than $#2, silver).
There are a few other non-metallic minerals with anomalously high thermal conductivity, including corundum (sapphire & ruby), hematite, spinel, and pyrite. The matrix thermal conductivity is positively correlated only with the silica content which reflects the content of quartz, whereas other rock-forming minerals decrease the matrix thermal.
First, thermal conductivity is estimated using data based on quasi‐isotropic mixtures of fragments or powder. Second, the approach is applied on core data considering the anisotropy of some rock forming minerals.
The numerical value of estimated thermal conductivity is controlled by the quartz by: Thermal conductivity anisotropy was determined for two sets of rocks: a series of sandstones, mudstones, and limey shales of Cretaceous age from Price Canyon, Utah, and metasedimentary argillites.
Data on thermal properties of rocks such as thermal conductivity (λ), thermal diffusivity (α), specific heat capacity (cp) are necessary for many aspects of exploration and exploitation of geothermal fields (Popov et al., ), in both high-low enthalpy and geo-exchange systems.
However, there are still several difficulties in characterize geological materials, because their thermal Author: Stefania Simion. (1) Electrolytic conductors.—The electrical conductivity of rocks and soils in place is generally due almost entirely to the moisture content.
With some exceptions, the solid minerals which constitute the rock or soil are good insulators. Chapter 11 Relationships Between Some Petrophysical Properties.
Introduction. Relationships Based on Layered Models—Log Interpretation for Porosity and Mineral Composition Estimate. Relationships Between Thermal Conductivity and Elastic Wave Velocities. Appendix A Physical Properties of Rock-Forming Minerals. Appendix B Some.
Thermal Conductivity of Polymers, Glasses, and Ceramics by Modulated DSC. Thermal Conductivity of Rock-Forming Minerals. Thermal Conductivity of Rocks and Minerals. Thermal Conductivity of Some Rock Forming Minerals: A Tabulation. Thermal Conductivity of Two-Phase Materials. Thermal Properties of Author: Daniel Peter Hochstein.
The thermal conductivity of traditional ceramic materials is known to be a function of their porosity or bulk density. However, the scatter in the thermal conductivity–bulk density data in certain studies, particularly when data from industrially processed brick are involved, suggests that thermal conductivity depends, apart from porosity, on other characteristics such as mineralogical Cited by: Thermal conductivity (also: heat conductivity) λ: Physical property governing heat diffusion in the steady defines how much heat flows across a unit cross section of rock along a unit distance per unit temperature decrease per unit time; dimension: W m −1 K − Thermal diffusivity κ: Physical property governing transient heat diffusion.
It is defined by the ratio of thermal. 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 by: Thermal conductivity of some rock-forming minerals: a tabulation Open-File Report By: William H.
Diment and Howard R. Pratt. Silicates – minerals containing the two most abundant elements in the Earth’s crust, namely, silicon and oxygen. When linked together, these two elements form the silicon oxygen tetrahedron - the fundamental building block of silicate minerals.
Over 90% of rock-forming minerals. where k j the thermal conductivity of the jth mineral, and v j and n are as in eq. (4). By replacing the minimum thermal conductivity of the mineral phases and the index ‘max’ with ‘min’ in eqs (5a) and (5b), a similar expression can be obtained for the lower conductivity bound k by: Thermal conductivity and mineral composition of flood basalt in Al Hashimiyya city were correlated.
Representative thin sections were optically analyzed for their mineral constituents and micro fractures. Findings of this study will contribute to a comprehensive understanding of the correlation between selected petrological characteristics of basalts and their heat conduction : Sana’a Al-Zyoud.
Full Text; PDF ( K) PDF-Plus ( K) Citing articles; Thermal conductivity of bitumen concrete. Jean Côté, a Vivien Grosjean, b Jean-Marie Konrad a a Université Laval, Département de génie civil,avenue de la Médecine, Pavillon Adrien-Pouliot, Local A, Université Laval, Québec, QC G1V 0A6, Canada.
b 12 rue Vallence Père Ruby entrée A Res. Jardin d'Hestia, Cited by: Diment and H. Pratt, “ Thermal conductivity of some rock-forming minerals: A tabulation,” Technical Report No.US Geological Survey, Google Scholar Crossref Cited by: 1. An introduction to the rock-forming minerals / [by] W.
A. Deer, R. A. Howie, [and] J. Zussman Thermal conductivity of some rock-forming minerals: a tabulation [microform] / by William H. Diment and.Thermal Conductivity of Some Rock-Forming Minerals: A Tabulation By William H. Diment and Howard R. Pratt INTRODUCTION This compilation supplements Robertson's () study of the thermal properties of rocks.
The data were discussed by Diment () and a version of table 1 circulated about that time. The table was subsequently updated toCited by: Horai, K.
and S. Baldridge, “Thermal Conductivity of Nineteen Igneous Rocks, I. Application of Needle Probe Method to the Measurement of the Thermal Conductivity of Rock and II.
Estimation of the Thermal Conductivity of Rock from the Mineral and Chemical Compositions,” Phys. Earth Planet Interiors, 5, –, –, Cited by: 3.