最新火星高清照片 “指纹”地形引关注(组图)(3)
图3:暗色鳄鱼形状的深沟槽
自2006年火星轨道勘测器就装配了一套先进仪器用于研究火星,它向地球发送的观测资料远远超过了过去和当前的火星观测任务。
如图2所示,这是一张火星表面几处红色沟渠地形,该区域存在着斜坡和碰撞弹坑壁,从图片可以看到较宽V字形向下通道,在这里一些沉淀物质冲击形成沟渠。在沟渠底部沉淀物质形成扇状喷涌层。
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