div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: US Geological Survey Publications Warehouse · 2011-04-18 · 6inf 15 3500 13 13 Holocene erosion surface Kayak Shale 17 _ 18 18 Siksikpuk Formation 16-17- 500 16 1000 1500 src=https:reader034fdocumentsinreader034viewer20220424195f3689dfce04ee1de6142db8html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv