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La actividad lunar de la reciente liberación de gas
Peter H Schultz1, Matthew I Staid, Carlé M Pieters
1Brown University, Geological Sciences, Providence, Rhode Island 02912-1846, USA. peter_schultz@brown.edu
Nature
|November 10, 2006
Resumen
Los recientes cambios en la superficie lunar sugieren una continua emisión de gases desde la Luna.
Área de la Ciencia:
- Geología lunar geología lunar.
- Ciencias planetarias Ciencias planetarias.
- Astrogeología y Astrogeología.
Sus antecedentes:
- El vulcanismo lunar generalizado cesó hace aproximadamente 3.200 millones de años.
- Se pensaba que la evolución de la superficie lunar estaba dominada por cráteres de impacto durante los últimos mil millones de años.
- La Luna generalmente se considera geológicamente inactiva, aparte de los terremotos lunares y los sistemas de fallas.
Objetivo del estudio:
- Para investigar las modificaciones recientes en la superficie lunar dentro de la estructura Ina.
- Para determinar la edad y los procesos de formación de las características en la estructura Ina.
- Para explorar las implicaciones de estos hallazgos para la salida de gases lunares y el contenido volátil.
Principales métodos:
- Análisis de las estadísticas del cráter y la degradación.
- Evaluación de la preservación del relieve topográfico.
- Evaluación de la madurez espectral del regolito (frescura).
Principales resultados:
- Las características dentro de la estructura de Ina muestran evidencia de un reciente resurgimiento, con edades tan jóvenes como 10 millones de años.
- Es posible que estas características todavía se estén formando activamente.
- Los hallazgos desafían la suposición de que solo los cráteres de impacto han remodelado la Luna recientemente.
Conclusiones:
- La reciente y episódica expulsión de gases del interior de la Luna probablemente creó las características observadas en la estructura de Ina.
- Esta salida de gases puede explicar los gases radiogénicos detectados en misiones lunares pasadas.
- Se necesita más monitoreo para analizar la composición del gas y comprender los volátiles lunares profundos.
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