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伽利略區

右上角的巨大卵形暗區就是伽利略區

伽利略區Galileo Regio)是木星衛星木衛三上的一個巨大的暗區。中心座標47.0°N,129.6°E,直徑3200公里。

地質狀況

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和一般人對伽利略區第一印象相反的是,該區域並不是一個撞擊坑,而是一個因為板塊作用造成分裂而顯現較古老的暗色物質,周圍被從木衛三內部上升到表面的年代較近的明亮物質包圍。一般認為該區域年代已經有40億年,且該區域有大量撞擊坑。

伽利略區的南方邊緣是烏魯克溝區。烏魯克溝介於伽利略區和馬里烏斯區。伽利略區內則有孟菲斯光斑

參考資料

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1. Harland, D. M.; Jupiter Odyssey, Springer Praxis (2000), p. 141

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伽利略區
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