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Simulation of the Planetary Interior Differentiation Processes in the Laboratory
Published on: November 16, 2013
Generación de magma en Marte: cantidades, tasas y comparaciones con la Tierra, la Luna y Venus
Resumen
Marte produjo significativamente menos magma en su historia en comparación con la Tierra y Venus, pero más que la Luna. Esto indica una menor actividad volcánica en Marte en relación con su tamaño e historia.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- Volcanología Volcanología.
- La geofísica es la geofísica.
Sus antecedentes:
- Comprender la evolución planetaria requiere cuantificar las tasas de generación de magma.
- Marte exhibe evidencia de actividad volcánica pasada, pero su salida magmática total no está bien restringida.
Objetivo del estudio:
- Para estimar el volumen total y la tasa de magma generado en Marte en los últimos 3.800 millones de años.
- Para comparar la tasa de generación de magma de Marte con las de la Tierra, Venus y la Luna.
Principales métodos:
- Utilizó los datos geológicos y geofísicos existentes para modelar la generación de magma.
- Volúmenes totales calculados de magma extrusivo e intrusivo.
- Tasas anuales estimadas de generación de magma.
Principales resultados:
- El magma total generado en Marte se estima en 654 x 10^6 kilómetros cúbicos.
- La tasa promedio de generación de magma para Marte es de 0.17 km ^ 3 / año.
- La tasa de magma de Marte es sustancialmente más baja que la de la Tierra (26-34 km 3 / año) y la de Venus (<20 km 3 / año), pero más alta que la de la Luna (0,025 km 3 / año).
- Cuando se escala a la masa de la Tierra, la tasa de Marte es menor que la de la Tierra y Venus y ligeramente menor que la de la Luna.
Conclusiones:
- Marte ha experimentado significativamente menos actividad magmática que la Tierra y Venus en escalas de tiempo geológicas.
- La tasa de generación de magma a escala sugiere diferencias en el calor interno y los procesos geológicos entre los planetas terrestres.
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