月のグローバル元素の地図:月探査機ガンマ線スペクトロメーター

D J Lawrence¹, W C Feldman, B L Barraclough

¹Space and Atmospheric Sciences, Mail Stop D466, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. djlawrence@lanl.gov

Science (New York, N.Y.)

|September 4, 1998

まとめ

Lunar Prospectorのデータは,月の表面全体でトリウム,カリウム,鉄の有意な変動を明らかにしています. これらの元素は,鉄の分布が以前の発見と一致する西マリアに集中しています.

科学分野:

月と惑星の科学月と惑星の科学
地質化学地質化学
リモートセンシングによる遠隔感知

背景:

月面の組成を理解することは,地質学と資源探査にとって極めて重要です.
以前のミッションでは,鍵となる要素の分布に関する限られたデータしか得られなかった.

研究の目的:

月面上のソリウム,カリウム,鉄の分布をマッピングする.
Lunar Prospectorのデータを用いて構成の変異や異常を特定する.

主な方法:

Lunar Prospectorミッションからのガンマ線スペクトロメーターデータの分析.
トリウム,カリウム,鉄のカウントレートマップの作成.
鉄の分布をクレメンタインとLunar Prospectorのニュートロン検出器データと比較.

主要な成果:

月面全体で重要な組成の変動が観察されました.
トリウムとカリウムは,マリアナ州西部の近辺で高い濃度を示しています.
鉄の分布は,以前の測定値と一致しており,信頼性の高い表面豊富さを示しています.

結論:

月は,特にマリア地域では,多様な元素の表面組成を示しています.
Lunar Prospectorのデータは,月の地化学に関する貴重な洞察を提供します.
この発見は,月の資源評価と地質学的研究における継続的な努力を支持するものである.

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