Petrogenesis of the Northwest Africa 4898 high-Al mare basalt

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Petrogenesis of the Northwest Africa 4898 high-Al mare basalt

Northwest Africa (NWA) 4898 is the only low-Ti, high-Al basaltic lunar meteorite yet recognized. It predominantly consists of pyroxene (53.8 vol%) and plagioclase (38.6 vol %). Pyroxene has a wide range of compositions (En12–62Fs25–62Wo11–36), which display a continuous trend from Mg-rich cores toward Ca-rich mantles and then to Fe-rich rims. Plagioclase has relatively restricted compositions (...

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ژورنال

عنوان ژورنال: Meteoritics & Planetary Science

سال: 2016

ISSN: 1086-9379

DOI: 10.1111/maps.12663