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Edad precámbrica de la cuenca de Boston: nuevas pruebas de microfósiles
Science (New York, N.Y.)
|May 7, 1982
Resumen
La cuenca de Boston es la cuenca de Boston.
Área de la Ciencia:
- Geología Geología Geología.
- Paleontología Paleontología.
- La estratigrafía es la estratigrafía.
Sus antecedentes:
- La edad geológica de la cuenca de Boston ha sido objeto de estudio.
- Investigaciones anteriores no han establecido definitivamente la edad de las rocas sedimentarias de la cuenca.
Objetivo del estudio:
- Para determinar la edad Vendiana (final del Proterozoico Z) de la cuenca de Boston.
- Para utilizar el análisis de microfósiles para la datación geológica precisa.
Principales métodos:
- El análisis de microfósiles de la argillita de Cambridge.
- Comparación de la microflora identificada con los conjuntos conocidos del Precámbrico tardío.
- Análisis petrográfico de microfósiles conservados en pirita.
Principales resultados:
- Se determinó una edad Vendiana (final del Proterozoico Z) para la Cuenca de Boston.
- Microfósiles, incluidas las Bavlinella cf. faveolata, fueron identificados y analizados.
- Se encontraron fósiles conservados como petrificaciones de pirita.
Conclusiones:
- La edad de Vendian proporciona un nuevo marco cronológico para la cuenca de Boston.
- Esta designación de edad facilita la reinterpretación de la estructura de la cuenca.
- Las correlaciones regionales de la geología de la cuenca de Boston ahora se pueden revisar.
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