{"title":"Sewickley folio, Pennsylvania","authors":"M. J. Munn","doi":"10.3133/GF176","DOIUrl":"https://doi.org/10.3133/GF176","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121568212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Olivet folio, South Dakota","authors":"J. E. Todd","doi":"10.3133/GF96","DOIUrl":"https://doi.org/10.3133/GF96","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125953314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Chicago folio, Riverside, Chicago, Desplaines, and Calumet quadrangles, Illinois-Indiana","authors":"W. C. Alden","doi":"10.3133/GF81","DOIUrl":"https://doi.org/10.3133/GF81","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129712269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ellensburg folio, Washington","authors":"G. O. Smith","doi":"10.3133/GF86","DOIUrl":"https://doi.org/10.3133/GF86","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128499024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Raton-Brilliant-Koehler folio, New Mexico-Colorado","authors":"W. T. Lee","doi":"10.3133/GF214","DOIUrl":"https://doi.org/10.3133/GF214","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"15 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120822444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tahlequah folio, Indian Territory-Arkansas","authors":"J. A. Taff","doi":"10.3133/GF122","DOIUrl":"https://doi.org/10.3133/GF122","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122274013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"St. Marys folio, Maryland-Virginia","authors":"G. B. Shattuck, B. L. Miller","doi":"10.3133/gf136","DOIUrl":"https://doi.org/10.3133/gf136","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"27 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125687010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Wartburg folio, Tennessee","authors":"A. Keith","doi":"10.3133/GF40","DOIUrl":"https://doi.org/10.3133/GF40","url":null,"abstract":"G-eneral relations. The region represented by the Wartburg atlas sheet lies, entirely in Tennessee. It is included between parallels 36° and 36° 30' and meridians 84° 30' and 85°, and Extentof it contains 963 square miles, divided q«at«rangie. between Scott, Morgan, Cumberland, and Fentress counties. In its geographic and geologic relations this quadrangle forms a part of the Appalachian province, which extends from the Deflnition of Atlantic coastal plain on the east to tuVprovince. the Mississippi lowlands on the west, and from central Alabama to southern New York. All parts of the region thus defined have a common history, recorded in its rocks, its geologic structure, and its topographic features. Only a part of this history can be read from an area so small as a single quadrangle; hence it it necessary to consider the individual quadrangle in its relations to the entire province. Subdivisions of the Appalachian province. The Appalachian province may be subdivided into three well-marked physiographic divisions, throughout each of which certain forces have produced similar results in sedimentation, in geologic structure, and in topography. These divisions extend the entire length of the province, from northeast to southwest. The central division is the Appalachian Valley. It is the best defined and most uniform of the three. In the southern part it coin_. . , *The Appala= cides with the belt of folded rocks g^S which forms the Coosa Valley of c arac er' Georgia and Alabama and the Great Valley of East Tennessee and Virginia. Throughout the central and northern portions the eastern side only is marked by great valleys such as the Shenandoah Valley of Virginia, the Cumberland Valley of Maryland and Pennsylvania, and the Lebanon Valley of northeastern Pennsylvania the western side being a succession of ridges alternating with narrow valleys. This division varies in width from 40 to 125 miles. It is sharply outlined on the southeast, by the Appalachian Mountains and on the northwest by the Cumberland Plateau and the Allegheny Mountains. Its rocks are almost wholly sedimentary and in large measure calcareous. The strata, which must originally have been relief tonrack , , . ° . character. nearly horizontal, now intersect the surface at various angles and in narrow belts. The surface differs with the outcrop of different kinds of rock, so that sharp ridges and narrow valleys of great length follow the narrow belts of hard and soft rock. Owing to the large amount of calcareous rock brought up on the steep folds of this division, its surface is more readily worn down by streams and is lower and less broken than that of the divisions on either side. The eastern division of the province embraces the Appalachian Mountains, a system which is made up of many minor ranges and TheAppaIa_ which, under various local names, ex2K\"; *££££\" tends from southern New York to ranges* central Alabama. Some of its prominent parts are the South Mountain of Pennsylvania, t","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124402426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fredericksburg folio, Virginia-Maryland","authors":"N. H. Darton","doi":"10.3133/GF13","DOIUrl":"https://doi.org/10.3133/GF13","url":null,"abstract":"","PeriodicalId":270623,"journal":{"name":"Folios of the Geologic Atlas","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129110361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}