Two-dimensional anomalies of heat conductivity. Model f

you are: Two-dimensional anomalies of heat conductivity

In this model attempt to simulate influence idealizirovannoj folded thickness of sedimentary breeds with the factors of heat conductivity typical for verhnekamennougolnyh of aleurolites and argillitov, forming alternating layers becomes.

Clearly, that the thermal stream amplifies in wings of the folds presented by breeds with raised heat conductivity, and at locks of folds the stream forks and goes on the shortest way through adjacent layers with the lowered heat conductivity to a following wing with high heat conductivity.

In folded structures these indignations make usually ±10%, and the numerical decision specifies that locally they can reach ±30%.

In more details given model was investigated by means of three vertical profiles of temperature and the geothermal gradient, spent along an axial plane sinklinali, through average parts of wings and along an axial plane of an anticline. On profiles through a crest and a deflection very strong fluctuations of a gradient, and on a profile through a wing of a fold a gradient curve rather smooth, and its values low are marked. Change of a thermal stream with depth on these three profiles; the greatest changes of a thermal stream are marked on a profile through wings along which the geothermal gradient varies rather poorly, but is imposed on layers with various heat conductivity. The interfaced fluctuations of values some smaller amplitude are marked on profiles.

There is an interesting periodicity in distribution of a thermal stream to surfaces, and the period is approximately equal to half of length of a wave of folds: relative falls of a thermal stream are marked there where there are layers with the low heat conductivity, forming wings of folds; the material with high heat conductivity both in anticlinal ridges, and in sinklinalnyh hollows gives relative increases of a stream, but in the first case they are stronger, than in the second.