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Evidencia isotópica de cambios climáticos dramáticos en el este de África durante el Pleistoceno
T E Cerling1, R L Hay, J R O'Neil
1Department of Geology and Geophysics, University of California, Berkeley, CA 94720, USA.
Nature
|May 12, 1977
Resumen
Los cambios paleoclimáticos causaron disminuciones significativas de las precipitaciones en el este de África hace alrededor de 1.8-2.0 y 0.5-0.6 millones de años. Esto se evidencia por los cambios en las relaciones de isótopos de oxígeno en los carbonatos antiguos.
Área de la Ciencia:
- Paleoclimatología Paleoclimatología
- La geoquímica de los isótopos es la geoquímica de los isótopos.
- Paleoentornos de África del Este Paleoentornos de África del Este
Sus antecedentes:
- La reconstrucción de los patrones de lluvia del pasado es crucial para comprender la dinámica climática y la evolución de los homínidos.
- El análisis de isótopos de oxígeno de carbonatos pedogénicos y de aguas subterráneas proporciona un sustituto confiable para las condiciones paleoclimáticas.
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