Carbonate Mud-Mounds in the Fort Payne Formation (Lower Carboniferous), Cumberland Saddle Region, Kentucky and Tennessee, USA
- C. L. V. Monty,
- D. W. J. Bosence,
- P. H. Bridges,
- B. R. Pratt
Published Online: 14 APR 2009
DOI: 10.1002/9781444304114.ch8
Copyright © 1995 The International Association of Sedimentologists
Book Title
Carbonate Mud-Mounds: Their Origin and Evolution
Additional Information
How to Cite
Meyer, D. L., Ausich, W. I., Bohl, D. T., Norris, W. A. and Potter, P. E. (2009) Carbonate Mud-Mounds in the Fort Payne Formation (Lower Carboniferous), Cumberland Saddle Region, Kentucky and Tennessee, USA, in Carbonate Mud-Mounds: Their Origin and Evolution (eds C. L. V. Monty, D. W. J. Bosence, P. H. Bridges and B. R. Pratt), Blackwell Publishing Ltd., Oxford, UK. doi: 10.1002/9781444304114.ch8
Publication History
- Published Online: 14 APR 2009
- Published Print: 17 JUL 1995
ISBN Information
Print ISBN: 9780865429338
Online ISBN: 9781444304114
- Summary
- Chapter
Keywords:
- Carbonate mud-mounds in the Fort Payne Formation;
- Crinoid holdfasts in growth position occur-wackestone buildups;
- Waulsortian facies;
- occurrence of articulated pelmatozoan calyces;
- presence of bryozoans and crinoids in the submound green shale facies;
- mound accumulation
Summary
Wackestone buildups up to 14 m thick lie in the lower one-third to one-half of the Lower Carboniferous Fort Payne Formation in the Cumberland Saddle region of south-central Kentucky and north-central Tennessee. In all buildups, an initial mound of fossiliferous green shale is succeeded by massive crinoid-bryozoan wackestones that thin over the mound crest but thicken on the flanks before thinning and terminating laterally. Primary depositional dips on mound flanks of up to approximately 20° and topographic relief are indicated by mound geometry, lithologic contacts, and geopetals. In situ crinoid holdfasts, well-preserved crinoid calyxes, texture and possible source of carbonate mud show the mounds to be autochthonous. Green shale accumulation was probably facilitated through baffling and trapping by bryozoans, and carbonate deposition reflects a shift to dominance by pelmatozoans and an unknown producer of carbonate mud over terrigenous mud supply. Petrographic constituents of mound carbonates suggest that these mounds represent the shallow-water, photic zone, Phase (D) of the Waulsortian facies model.