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Última estratigrafía proterozoica y historia de la Tierra
1Botanical Museum, Harvard University, Cambridge, Massachusetts 02138.
Nature
|April 23, 1992
Resumen
Nuevos datos estratigráficos revelan importantes cambios biológicos, biogeoquímicos, climáticos y tectónicos durante el Eón Proterozoico tardío. Esta investigación mejora nuestra comprensión de la historia de la Tierra y ayuda en la división cronostratigráfica.
Área de la Ciencia:
- Las geociencias son ciencias geológicas.
- Paleontología Paleontología.
- Biogeoquímica La biogeoquímica es la bioquímica.
Sus antecedentes:
- El final del Eón Proterozoico estuvo marcado por transformaciones ambientales y biológicas sustanciales.
- La comprensión de estos cambios requiere sólidos marcos estratigráficos.
Objetivo del estudio:
- Para presentar nuevos datos bio- y quimiostratigráficos.
- Establecer un marco mejorado para la correlación estratigráfica.
- Profundizar en la comprensión de la historia de la Tierra del Proterozoico tardío.
Principales métodos:
- Análisis biológico y quimiostratigráfico.
- Técnicas de correlación estratigráfica.
Principales resultados:
- Un marco estratigráfico mejorado para el último Proterozoico.
- Resolución cronológica mejorada para el Proterozoico tardío.
Conclusiones:
- Los nuevos datos facilitan una comprensión más profunda de la historia de la Tierra del Proterozoico tardío.
- Los hallazgos proporcionan herramientas para una división cronoestratigráfica del Proterozoico tardío.
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