27 research outputs found

    International Legal Consideration of Cosmic Hazards and Planetary Defense

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    International Legal Consideration of Cosmic Hazards and Planetary Defense

    No full text

    Correlation of sedimentary events during the Latest Cenomanian from the Basque Basin to the Castilian Ramp (Northern Spain)

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    Sedimentologic, biostratigraphic and geochemical analyses of the Late Cenomanian - Early Turonian series of the deep Basque Basin and of the Navarre-Cantabrian distal Ramp and Castilian proximal Ramp, allow: V to correlate sedimentary events such as the sedimentation of thin layers of organic matter-bearing laminated black shales in the Basque Basin and as the formation of glauconitic-pyritic bioturbated hardgrounds on the Navarre-Cantabrian and Castilian Ramps, 2) to date these events from the Archaeocretacea Zone, 3) to interpret them as evidence of anoxia in the basin and hypoxia on the ramps, and as results of major marine deepening and transgressionEstudios sedimentol贸gicos, bioestratigr谩ficos y geoqu铆micos de series de edad Cenomanense superior - Turonense inferior de la Cuenca profunda Vasca, de la Rampa distal Navarro-Cant谩brica y de la Rampa somera Castellana han permitido: V correlacionar la deposici贸n de arcillas negras laminadas (black shales) en la Cuenca Vasca con la formaci贸n de superficies endurecidas (hardgrounds) glaucon铆ticas en las Rampas Navarro-Cant谩brica y Castellana, 2) situar estos eventos en la Zona de Archaeocretacea, 3) interpretar dichos dep贸sitos como indicadores de anoxia en la cuenca profunda y de hipoxia sobre las rampas, resultado de una profundi'驴aci贸n y transgresi贸n marina mayo
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