div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader030vdocumentsnetreader030viewer20220306115adba51b7f8b9a53618e36abhtml5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: SP97-6P4 - Oklahoma Geological SurveyogsouedudocsspecialpublicationsSP97-6P4pdf · Visher G S Saitto B and Phares R S 1971 Pennsylvanian delta patterns and pe- troleum src=https:reader030vdocumentsnetreader030viewer20220306115adba51b7f8b9a53618e36abhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdiv