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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
PubMed
Resumen
Este resumen es generado por máquina.

Los recientes cambios en la superficie lunar sugieren una continua emisión de gases desde la Luna.

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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.