Journal Article

A model for temperature variations in sedimentary basins due to random radiogenic heat sources

Kirti Srivastava and R. N. Singh

in Geophysical Journal International

Volume 135, issue 3, pages 727-730
Published in print December 1998 | ISSN: 0956-540X
Published online December 1998 | e-ISSN: 1365-246X | DOI: https://dx.doi.org/10.1046/j.1365-246X.1998.00693.x
A model for temperature variations in sedimentary basins due to random radiogenic heat sources

Show Summary Details

Preview

The thermal structure of a sedimentary basin is controlled by its thermal conductivity, its boundary conditions, water flow, rate of sedimentation and erosion and radiogenic heat sources. The radiogenic heat production in the sediments is known to vary over several orders of magnitude, with the lowest values in evaporites and carbonates and the highest values in black shales. Due to a paucity of information available on the existing heat sources, this parameter can be represented with a known mean value and a Gaussian correlation structure rather than a deterministic function. In this paper, the 1-D steady-state thermal structure in a sedimentary basin has been modelled in a stochastic framework with a random radiogenic heat source, and analytical expressions for the first two moments of the temperature field have been obtained. A synthetic example has been examined to quantify the error bounds on the temperature field due to uncertainties in the radiogenic heat sources.

Keywords: heat flow; perturbation method; sedimentary basin

Journal Article.  2209 words.  Illustrated.

Subjects: Geophysics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content. subscribe or login to access all content.