div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 5button div class=ts-image amp-img class=ts-thumb alt=Page 5: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails5jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 6button div class=ts-image amp-img class=ts-thumb alt=Page 6: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails6jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 7button div class=ts-image amp-img class=ts-thumb alt=Page 7: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails7jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 8button div class=ts-image amp-img class=ts-thumb alt=Page 8: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails8jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 9button div class=ts-image amp-img class=ts-thumb alt=Page 9: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails9jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 10button div class=ts-image amp-img class=ts-thumb alt=Page 10: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails10jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 11button div class=ts-image amp-img class=ts-thumb alt=Page 11: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails11jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 12button div class=ts-image amp-img class=ts-thumb alt=Page 12: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails12jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 13button div class=ts-image amp-img class=ts-thumb alt=Page 13: USGS Open-File Report 98-776 · Open-File Report 98-776 This reoort is Drelimin and has not b editorial standards or with the North American Stratigraphic Code Any use of trade src=https:reader030vdocumentsusreader030viewer20220405015e2338fe2db7583e92196b44html5thumbnails13jpg width=142 height=106 layout=responsive amp-img divdiv