Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Heat transport within the Earth   Numerous attempts have been made to interpret Earth's dynamic processes based
upon heat transport concepts derived from ordinary experience. But, ordinary
experience can be misleading, especially when underlain by false assumptions.
Geodynamic considerations traditionally have embraced three modes of heat
transport: conduction, convection, and radiation. Recently, I introduced a
fourth, "mantle decompression thermal tsunami" that, I submit, is responsible
for emplacing heat at the base of the Earth's crust. Here, I review thermal
transport within the Earth and speculate that there might be a fifth mode:
"heat channeling", involving heat transport from the core to "hot-spots" such
as those that power the Hawaiian Islands and Iceland.

23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: eess
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an