A comparative study of parameterized and full thermal-convection models in the interpretation of heat flow from cratons and mobile belts
dc.contributor.author | Nyblade, Andrew A. | en_US |
dc.contributor.author | Pollack, Henry N. | en_US |
dc.date.accessioned | 2010-06-01T21:42:40Z | |
dc.date.available | 2010-06-01T21:42:40Z | |
dc.date.issued | 1993-06 | en_US |
dc.identifier.citation | Nyblade, Andrew A.; Pollack, Henry N. (1993). "A comparative study of parameterized and full thermal-convection models in the interpretation of heat flow from cratons and mobile belts." Geophysical Journal International 113(3): 747-751. <http://hdl.handle.net/2027.42/74756> | en_US |
dc.identifier.issn | 0956-540X | en_US |
dc.identifier.issn | 1365-246X | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/74756 | |
dc.description.abstract | Heat flow from Archean cratons worldwide is typically lower than from younger mobile belts surrounding them. The contrast in heat flow between cratons and mobile belts has been attributed in previous studies to the greater thermal resistance of thicker lithosphere beneath the cratons which impedes the flow of mantle heat through the cratons and forces more mantle heat to escape through thinner mobile belt lithosphere. This interpretation is based on thermal models which employ a parameterized convection algorithm to calculate heat transfer in the sublithospheric mantle. We test this interpretation by comparing thermal models constructed using the parameterized convection scheme with models developed using an algorithm for full thermal convection. We show that thermal models constructed using the two different convection algorithms yield similar surface heat flow and thermal structure to moderate depths within the lithosphere. Therefore, we conclude that the interpretation of the heat-flow observations in terms of thicker lithosphere under Archean cratons than under mobile belts is robust in the sense that surface heat flow is not sensitive to the details of heat transfer within the convecting mantle and how deep mantle heat is delivered to the base of the lithosphere. | en_US |
dc.format.extent | 444501 bytes | |
dc.format.extent | 3109 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.rights | 1993 Royal Astronomical Society | en_US |
dc.subject.other | Convection | en_US |
dc.subject.other | Cratons | en_US |
dc.subject.other | Heat Flow | en_US |
dc.subject.other | Mobile Belts | en_US |
dc.title | A comparative study of parameterized and full thermal-convection models in the interpretation of heat flow from cratons and mobile belts | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Geology and Earth Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Geological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/74756/1/j.1365-246X.1993.tb04665.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-246X.1993.tb04665.x | en_US |
dc.identifier.source | Geophysical Journal International | en_US |
dc.identifier.citedreference | Ballard, S. & Pollack, H. N. 1987. Diversion of heat by Archean cratons: a model for southern Africa, Earth planet. Sci. Lett. 85, 253 – 264. | en_US |
dc.identifier.citedreference | Ballard, S., Pollack, H. N. & Skinner, N. J. 1987. Terrestrial heat flow in Botswana and Namibia, J. geophys. Res. 92, 6291 – 6300. | en_US |
dc.identifier.citedreference | Chapman, D. S. & Furlong, K. P. 1977. Continental heat flow-age relationships (abstract), EOS, Trans. Am. geophys. Union, 58, 1240. | en_US |
dc.identifier.citedreference | Gurnis, M. 1988. Large-scale mantle convection and the aggregation and dispersal of supercontinents, Nature, 332, 695 – 699. | en_US |
dc.identifier.citedreference | Gurnis, M. & Zhong, S. 1991. Generation of long wavelength heterogeneity in the mantle by the dynamic interaction between plates and convection, Geophys. Res. Lett. 18, 581 – 584. | en_US |
dc.identifier.citedreference | Jordan, T. H. 1988. Structure and formation of the continental tectosphere, J. Petrology, Spec. Lithosphere Issue, 11 – 37. | en_US |
dc.identifier.citedreference | King, S. D., Raefsky, A. & Hager, B. H. 1990. ConMan: vectorizing a finite element code for incompressible two-dimensional convection in the Earth's mantle, Phys. Earth planet. Inter. 59, 195 – 207. | en_US |
dc.identifier.citedreference | Morgan, P. 1985. Crustal radiogenic heat production and the selective survival of ancient continental crust, J. geophys. Res. 90, C561 – C570. | en_US |
dc.identifier.citedreference | Nyblade, A. A., Pollack, H. N., Jones, D. L., Podmore, F. & Mushayandebvu, M. 1990. Terrestrial heat flow in east and southern Africa, J. geophys. Res. 95, 17371 – 17384. | en_US |
dc.identifier.citedreference | Shape, H. N. & Peltier, W. R. 1979. A thermal history model for the Earth with parameterized convection, Geophys. J. R. astr. Soc. 59, 171 – 205. | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.