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El ritmo astronómico de la liberación de metano en el período Jurásico Temprano
David B Kemp1, Angela L Coe, Anthony S Cohen
1Department of Earth Sciences, Centre for Earth, Planetary, Space & Astronomical Research, The Open University, Milton Keynes MK7 6AA, UK. d.kemp@open.ac.uk
Nature
|September 16, 2005
Resumen
La disociación del hidrato de metano en el Jurásico temprano causó una importante interrupción del ciclo del carbono. Este evento, vinculado al forzamiento climático astronómico, ocurrió en tres pulsos y desencadenó extinciones marinas.
Área de la Ciencia:
- Paleoclimatología Paleoclimatología
- La geoquímica es la geoquímica.
- Paleontología Paleontología.
Sus antecedentes:
- El período Jurásico Temprano (aprox. Hace 183 millones de años) experimentó una perturbación significativa del ciclo global del carbono, evidenciada por una pronunciada excursión negativa del isótopo de carbono (delta13C).
- La disociación del hidrato de metano en las plataformas continentales, liberando metano biogénico enriquecido con 12C, se ha propuesto como una causa de este desplazamiento isotópico.
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