Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/124651
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- Title
- Crustal and mantle strengths in continental lithosphere : is the jelly sandwich model obsolete?
- Related
- Tectonophysics, Vol. 394, No. 3-4 (2004), p.221-232
- DOI
- 10.1016/j.tecto.2004.08.006
- Publisher
- Elsevier
- Date
- 2004
- FoR/RFCD Code(s)
-
040400 Geophysics
040300 Geology
- Author/Creator
- Afonso, Juan Carlos
- Author/Creator
- Ranalli, Giorgio
- Description
- The relative importance of the contribution of the lower crust and of the lithospheric mantle to the total strength of the continental lithosphere is assessed systematically for realistic ranges of layer thickness, composition, and temperature. Results are presented as relative strength maps, giving the ratio of the lower crust to upper mantle contribution in terms of crustal thickness and surface heat flow. The lithosphere shows a “jelly sandwich” rheological layering for low surface heat flow, thin to average crustal thickness, and felsic or wet mafic lower crustal compositions. On the other hand, most of the total strength resides in the seismogenic crust in regions of high surface heat flow, crust of any thickness, and dry mafic lower crustal composition.
- Description
- 12 page(s)
- Subject Keyword
- 040400 Geophysics
- Subject Keyword
- 040300 Geology
- Subject Keyword
- continental lithosphere
- Subject Keyword
- strength
- Subject Keyword
- composition
- Subject Keyword
- rheology
- Subject Keyword
- relative strength maps
- Resource Type
- journal article
- Organisation
- Macquarie University. National Key Centre for Geochemical Evolution and Metallogeny of Continents (GEMOC)
- Identifier
- http://hdl.handle.net/1959.14/124651
- Identifier
- ISSN:0040-1951
- Identifier
- mq-rm-2009006867
- Language
- eng
- Reviewed
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