Person:
Osete López, María Luisa

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First Name
María Luisa
Last Name
Osete López
URI
https://hdl.handle.net/20.500.14352/74971
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Físicas
Department
Física de la Tierra y Astrofísica
Area
Física de la Tierra
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2001 - 20072
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Author: Goy Goy, Antonio × Subject: 551.762 ×

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Now showing 1 - 2 of 2
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    Magnetostratigraphy of Early–Middle Toarcian expanded sections from the Iberian Range (central Spain)
    (Earth and planetary science letters, 2007) Osete López, María Luisa; Gialanella, P.R.; Gómez Fernández, Juan José; Villalaín Santamaría, Juan José; Goy Goy, Antonio; Heller, Friedrich
    The magnetostratigraphy of the Lower–Middle Toarcian has been established in two well-dated stratigraphically expanded sections: the Sierra Palomera and the Ariño sections, located in the Iberian Range, in central-eastern Spain. Two magnetisation components could be isolated by thermal cleaning: a secondary syntectonic component of always normal polarity unblocking at intermediate temperatures up to 450 °C/475 °C (A component) and a high temperature unblocking component up to 575 °C (B component). The B component passes fold and reversal tests and is considered the characteristic remanent magnetisation of primary origin. The first Toarcian palaeomagnetic pole for Iberia has been obtained: Plat = 77.4°, Plon = 241.3°E (dm = 5.4° dp = 6.0°). Five pairs of normal and reversed polarity zones were calibrated to regional ammonite subzones. The pattern can be calibrated to other Toarcian magnetostratigraphic studies, but provides a more detailed biostratigraphic framework. A refined magnetic polarity time scale is proposed for the Lower–Middle Toarcian.
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    The Global Boundary Stratotype Section and Point (GSSP) of the Toarcian-Aalenian Boundary (Lower-Middle Jurassic)
    (Episodes, 2001) Cresta, S.; Goy Goy, Antonio; Ureta Gil, María Soledad; Arias Fernández, María Del Carmen; Barrón López, Eduardo; Bernard García, Julio; Canales Fernández, María Luisa; García Joral, Fernando; García Romero, Emilia; Gialanella, P.R.; Gómez Fernández, Juan José; González, J.A.; Herrero Matesanz, M. De La Concepción; Martínez Gutiérrez, Gemma; Osete López, María Luisa; Perilli, Nicola; Villalaín, J.J.
    The Global Boundary Stratotype Section and Point (GSSP) for the Aalenian Stage, formally defined at the base of bed FZ107 in the Fuentelsaz section, Castilian Branch of the Iberian Range (Spain), has been ratified by the IUGS. Multidisciplinary biostratigraphical data, based on ammonites, brachiopods, ostracods, bivalves, foraminifera, calcareous nannofossils assemblages and palynomorphs, assure worldwide correlations; magnetostratigraphic data increase this correlation power. The position of the boundary coincides with the first occurrence of the ammonite assemblage characterized by Leioceras opalinum and Leioceras lineatum and corresponds with a normal polarity interval correlated with the up-to-date Jurassic magnetic polarity time scale (Gradstein and others, 1994; Ogg, 1995).