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Research Article| December 01, 1962 Geology of Devonian Type Section (Chaffee Formation), Fremont County, Central Colorado C. C REEVES, JR. C. C REEVES, JR. Dept. Geosciences, Texas Technological College, Lubbock, Texas Search for other works by this author on: GSW Google Scholar GSA Bulletin (1962) 73 (12): 1443–1450. https://doi.org/10.1130/0016-7606(1962)73[1443:GODTSC]2.0.CO;2 Article history received: 03 Oct 1960 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation C. C REEVES; Geology of Devonian Type Section (Chaffee Formation), Fremont County, Central Colorado. GSA Bulletin 1962;; 73 (12): 1443–1450. doi: https://doi.org/10.1130/0016-7606(1962)73[1443:GODTSC]2.0.CO;2 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 Recent examination of the Chaffee Formation type section in western Fremont County, Colorado, has revealed several features of stratigraphic significance. The shallow Chaffee sea, encroaching over a surface eroded during Silurian time, produced the lower argillaceous zone of the basal Parting Member with its ripple marks, mud cracks, and thin-bedded silts. Deepening of the Chaffee sea is reflected by the sandstones or present-day quartzites of the upper Parting Member. The carbonates of the overlying Dyer Member represent the period of maximum Devonian inundation.Laboratory measurements of insoluble residue, magnetic and heavy-mineral fractions, and DTA curves for selected samples suggest that correlative zones within the Dyer Member of the Chaffee Formation may be recognizable on the basis of physical properties. 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.
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