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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2005
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=56844203 |
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Sommario:
- Elastic thickness of the oceanic lithosphere beneath Tehuantepec ridge Marco Guzmán Speziale Marina Manea Vlad C. Manea Vladimir Kostoglodov Ciencias de la Tierra admittance gravity modeling Tehuantepec ridge elastic thickness Relationship between bathymetry and free-air gravity is analyzed by computing response function (admittance) for 7 shipborneprofiles crossing the Tehuantepec ridge (TR). The age of the lithosphere at the time of bathymetric loading of the TR is deducedfrom the experimental admittance and the elastic thickness, Te. Admittance is interpreted in terms of isotropic elastic plate thickness.The oceanic lithosphere is assumed to behave as an elastic plate 10±5 km thick. Low admittances at low wave-numberssuggest that TR is isostatically compensated. We estimate a median value of 8 Ma (in the interval 2-17 Ma) for the age of oceaniclithosphere at the time of TR onset. 2005 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56844203 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.2 Vol.44