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Updated: Jul 14, 2026
06:04
Simulation of the Planetary Interior Differentiation Processes in the Laboratory
Published on: November 15, 2013
Distribución global de la magnetización de la corteza descubierta por el experimento MAG/ER del topógrafo global de
1NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA. Bartol Research Institute, University of Delaware, Newark, DE 19716, USA. Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA. Centre d'Etude Spatiale des Rayonn.
Science (New York, N.Y.)
|April 30, 1999
Resumen
Los datos del campo magnético del Mars Global Surveyor (MGS) revelan el magnetismo de la corteza terrestre correlacionado con las antiguas tierras altas. Esto indica que Marte es Marte.
Área de la Ciencia:
- Ciencias planetarias Ciencias planetarias.
- La geofísica es la geofísica.
- Física del espacio Física del espacio
Sus antecedentes:
- La corteza marciana posee un campo magnético remanente.
- La nave espacial Mars Global Surveyor (M1GS) hizo un mapa del campo magnético marciano.
- Las misiones anteriores proporcionaron datos limitados sobre el magnetismo de la corteza marciana.
Objetivo del estudio:
- Para investigar la distribución espacial y las características de los campos magnéticos de la corteza marciana.
- Para entender la historia del campo magnético de Marte.
- Para determinar el impacto del magnetismo de la corteza terrestre en el viento solar.
Principales métodos:
- Las mediciones del campo magnético vectorial se recogieron utilizando el instrumento MAG/ER a bordo del MGS.
- Los datos se adquirieron durante las órbitas de frenado aéreo y de fase científica.
- El rango de altitud para la recopilación de datos fue de 100 a 200 km.
Principales resultados:
- Las fuentes de campo magnético observadas varían en escala, fuerza y geometría.
- Las fuentes de campo magnético se correlacionan con el antiguo terreno de cráteres en las tierras altas marcianas.
- La ausencia de magnetismo cerca de grandes cuencas de impacto sugiere el cese del dínamo hace unos 4.000 millones de años.
Conclusiones:
- Marte probablemente perdió su campo magnético global durante la época Naochiana.
- Existen importantes fuentes magnéticas de la corteza terrestre, particularmente en la región de Terra Sirenum.
- Estas fuentes crean un obstáculo dinámico para el flujo del viento solar alrededor de Marte.
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