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Pico central del cráter Copérnico: montaña lunar de una composición única
Science (New York, N.Y.)
|January 1, 1982
Resumen
La olivina es el mineral máfico principal en el cráter Copérnico.
Área de la Ciencia:
- Geología y mineralogía lunares.
- Ciencias planetarias Ciencias planetarias.
- La teledetección es la sensorización remota.
Sus antecedentes:
- El cráter Copérnico es una característica lunar significativa.
- Comprender la composición mineral de los cráteres lunares es crucial para descifrar su formación y evolución.
- Las observaciones telescópicas basadas en la Tierra proporcionan datos valiosos sobre materiales de la superficie lunar no muestreados.
Objetivo del estudio:
- Para identificar el mayor mineral máfico en el pico central del cráter Copérnico.
- Para caracterizar los conjuntos minerales de material profundamente asentado dentro del cráter Copérnico.
- Para comparar la mineralogía del pico central de Copérnico con otras regiones lunares de terra y paredes de cráteres.
Principales métodos:
- Adquisición de espectros de reflectancia del infrarrojo cercano (0,7 a 2,5 micrómetros) utilizando telescopios basados en la Tierra.
- Análisis de datos espectrales para determinar las composiciones minerales.
- Comparación de las características espectrales con muestras lunares conocidas y unidades geológicas.
Principales resultados:
- La olivina fue identificada como el mineral máfico dominante en el pico central del cráter Copérnico.
- La composición mineral del pico central de Copérnico es distinta de otras áreas lunares medidas.
- Las regiones de la terra lunar y la pared del cráter de Copérnico muestran conjuntos minerales similares a las brecias feldspáticas de la misión Apolo, con ortopiróxeno bajo en calcio como el mineral máfico primario.
Conclusiones:
- El pico central del cráter Copérnico contiene un material profundo único, distinto de las regiones circundantes de la superficie lunar.
- La espectroscopia del infrarrojo cercano es eficaz para caracterizar conjuntos minerales de materiales lunares sin muestrear.
- Los hallazgos contribuyen a una mejor comprensión de la petrología de los cráteres lunares y la diversidad de las composiciones de la corteza lunar.
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