div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentpubsusgsgov-1759-b-geological-survey-3230-see-text-2-pcv-virginia-argillitehtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: pubsusgsgov · EXPLANATION 1759-B GEOLOGICAL SURVEY 3230 See text 2 pcv Virginia Argillite Aurora wsp 1759-F MINNESOTA Grand loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader031fdocumentsusreader031viewer20220306175ae2aa537f8b9a097a8d4077html5thumbnails1jpg width=140 height=200 divdiv