パンカム・マルチスペクトル画像は,グセフクレーターにあるスピリット・ローバーから得られた結果です
J F Bell1, S W Squyres, R E Arvidson
1Cornell University, Ithaca, NY 14853-6801, USA. jfb8@cornell.edu
まとめ
グセフクレーターの表面は塵と岩で覆われており,一部のエリアにはマフィカルシリケートがある. ミッション中に大気中の塵が減少し,ユニークな天文学的景色が撮影されました.
科学分野:
- 惑星科学は惑星科学である.
- 地質学 地質学 地質学
- 大気科学 大気科学
背景:
- 火星のグセフクレーターは,複雑な地質景観を呈しています.
- 表面の組成と大気条件は,火星探査の重要な分野である.
研究 の 目的:
- パノラミックカメラのデータを用いて,グセフクレーターの地質学と表面構成を分析する.
- 大気の変化を調査し,ミッション中にユニークな天文イベントを撮影します.
主な方法:
- パノラマカメラの画像を利用して,表面の特徴とアルベドを評価した.
- 鉱物の組成を特定するために岩表面のスペクトル分析を行った.
- 大気中の塵の不透明性を監視し,天文観測を記録した.
主要な成果:
- 細粒子の堆積物,粉塵のコーティング,および鉄性鉄の岩石が散らばった表面を特定しました.
- スペクトルシグネチャーは,より暗い岩層の領域にマフィカルシリケート (ピロキセン,オリビン) の存在を示した.
- 大気中の塵の不透明性の低下を観測し,フォボスとデイモスの太陽通過を撮影した.
結論:
- グセフクレーターの表面は,エオリアのプロセスと塵の堆積によって形成されています.
- 火星の表面岩は,マフィスのシリケート鉱物を含んでいる.
- 大気条件はミッション中に進化し,ユニークな観測の機会を提供しました.
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