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Astraea Nunatak : ウィキペディア英語版 | Astraea Nunatak Astraea Nunatak () is a nunatak south of Staccato Peaks in southern Alexander Island. It was mapped from trimetrogon air photography taken by the Ronne Antarctic Research Expedition, 1947–48, and from survey by the Falkland Islands Dependencies Survey, 1948–50, and named by the United Kingdom Antarctic Place-Names Committee after Astraea, one of the asteroids lying between the orbits of Mars and Jupiter. ==Geology==
According to the British Antarctic Survey's (BAS) aeromagnetic 1975 survey of Astraea Nunatak and nearby Ceres Nunataks, this geographical feature is rich in the igneous rocks Diorite and Tonalite as presumed by the rock samples which were observed by BAS during this survey.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Astraea Nunatak」の詳細全文を読む
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