Title: Correlation and Extent of Pennsylvanian Cyclothems
Abstract:Research Article| December 30, 1932 Correlation and Extent of Pennsylvanian Cyclothems 12 HAROLD R. WANLESS; HAROLD R. WANLESS Search for other works by this author on: GSW Google Scholar J. MARVIN WE...Research Article| December 30, 1932 Correlation and Extent of Pennsylvanian Cyclothems 12 HAROLD R. WANLESS; HAROLD R. WANLESS Search for other works by this author on: GSW Google Scholar J. MARVIN WELLER J. MARVIN WELLER Search for other works by this author on: GSW Google Scholar GSA Bulletin (1932) 43 (4): 1003–1016. https://doi.org/10.1130/GSAB-43-1003 Article history received: 11 May 1932 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation HAROLD R. WANLESS, J. MARVIN WELLER; Correlation and Extent of Pennsylvanian Cyclothems . GSA Bulletin 1932;; 43 (4): 1003–1016. doi: https://doi.org/10.1130/GSAB-43-1003 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract IntroductionGENERAL STATEMENTThe heterogeneous strata of the Pennsylvanian system in the central and eastern states constitute a complex succession so different from the older Paleozoic systems that the interpretation of the Pennsylvanian is difficult and few geologists have attempted more than a generalization of its geological history. Because of variable lithology and the generally long or unknown range of invertebrate fossils, these standard means of correlation have proved, up to this time, to be of negligible service, and the fossil plants, which are probably no more accurate stratigraphic indices than are the invertebrates, have furnished the basis for practically all previous correlations between the Pennsylvanian strata of the different basins or between remote portions of the same basin.THE CYCLICAL HYPOTHESISIn 1926 a broad stratigraphic study of the Pennsylvanian system in Illinois was begun by the Illinois State Geological Survey under the direction of J. M. Weller. As . . . This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.Read More
Publication Year: 1932
Publication Date: 1932-12-30
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 227
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