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Rotmistrivka crater : ウィキペディア英語版 | Rotmistrivka crater
Rotmistrovka is an impact crater in Ukraine (Cherkasy Oblast). Located near the village Rotmistrivka of Smila district. The crater is 2.7 km in diameter, with an age estimated at 120 ± 10 million years (Lower Cretaceous). It is not exposed to the surface, being buried beneath continental and marine sedimentary deposits. The crater contains a brecciated lens of granite fragments and particles of impact glass, overlain by shales, limestones and granite-derived sandstones of lower Cretaceous age. == References ==
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「Rotmistrivka crater」の詳細全文を読む
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