| Autor: |
Baguer, A., Martínez López de Sabando, M., Múgica, J., Pérez García, J. R., Unanue, L., Elorza, Javier, Álvarez Llano, Irantzu |
| Jazyk: |
Spanish; Castilian |
| Rok vydání: |
2005 |
| Předmět: |
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| Popis: |
The Sopelana sea-cliff section exposes, in very good conditions, a continuous marl-limestone alternation from the Lower Maastrichtian in the deep Basque Arc domain. The 55 rhythms studied represent ~1100 ka and correspond to ~60cm/20ka. The marls are thicker than limestone layers and the Fischer diagram detects several shifts of high sedimentation and a well-marked minimum. The spectral analysis of the (%) CaCO3 content of the 30 selected rhythms (179 analysis, 18.74 m), confirms the rhythm with two frequency peaks, which correspond to the precession and eccentricity periods. The high-resolution analysis of four rhythms ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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