Oceanic circulation changes and continental drift as the main possible causes of palaeoclimatic variations and organic extinctions
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Resumen
La distribución de océanos y continentes y el patrón de circulación de corrientes oceánicas han cambiado durante el transcurso de la evolución de la Tierra. Dichos cambios, a su vez, han constituido las causas fundamentales de las variaciones del clima y de los cambios evolutivos. Dentro de los procesos relacionados se tienen: procesos de tectónica de placas, tales como esparcimiento del fondo oceánico y fragmentación de continentes; procesos oceanográficos tales como transgresiones y regresiones y débil circulación oceánica; y procesos climáticos tales como clima caliente y homogéneo y desaparición de las cubiertas polares de hielo; procesos de generación y preservación de hidrocarburos; procesos orogénicos: y procesos relacionados con el campo magnético terrestre.
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