2004.08.04

二疊紀的撞擊事件

2億5000萬年前陸地分佈的情形,隕石撞擊地點以紅點標示。影像來源/LUCY READING, AFTER MAP BY CHRISTOHER R. SCOTESE

2億5000萬年前陸地分佈的情形,隕石撞擊地點以紅點標示。影像來源/LUCY READING, AFTER MAP BY CHRISTOHER R. SCOTESE

© SCIENTIFIC AMERICAN, A DIVISION OF NATURE AMERICA, INC.ALL RIGHTS RESERVED.