Studies in Appalachian Mountain sculpture
G. H. ASHLEY · Geological Society of America Bulletin · 1935
Research Article| September 30, 1935 Studies in Appalachian Mountain sculpture GEOEGE H. ASHLEY GEOEGE H. ASHLEY Search for other works by this author on: GSW Google Scholar GSA Bulletin (1935) 46 (9): 1395–1436. https://doi.org/10.1130/GSAB-46-1395 Article history received: 04 Jun 1934 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 GEOEGE H. ASHLEY; Studies in Appalachian Mountain sculpture. GSA Bulletin 1935;; 46 (9): 1395–1436. doi: https://doi.org/10.1130/GSAB-46-1395 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 INTRODUCTIONPURPOSEFor over fifty years, the writer’s chief avocation has been the study of the evolution, history, and significance of man. Modern estimates of the antiquity of man depend on the determination of the age of deposits that contain human bones or artifacts. Thus, determination of the ages of the supposed oldest human remains—those of Trinil, Java, and the Piltdown man of England—involve estimates of the rate of valley-lowering at the points in question. The writer’s studies over many years have pointed toward two conclusions: first, the great antiquity of the earth, in general; second, and, with increasing conviction, the recency of present physiographic features. The present studies deal with the rate of erosion and other factors affecting surface sculpturing, and, if sustained by subsequent studies, may materially affect estimates of the antiquity of man.PHYSIOGRAPHIC CHARACTER OF APPALACHIAN REGIONThe Appalachian region, consisting of mountains, plateaus, . . . 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.