div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentus-geological-survey-publications-warehouse-2011-09-08-impact-structures-andhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: US Geological Survey Publications Warehouse · 2011-09-08 · impact structures and certain expefimental craters If so thev expose rock uplifted from beneath the crater floor loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsusreader034viewer20220501215f511ca74e98fd3ac562948ehtml5thumbnails1jpg width=140 height=200 divdiv