Notes on the origin of altered macerals in the Ragged Edge of the Pennsylvanian (Asturian) Herrin coalbed, Western Kentucky

Valentim, Bruno, Hower, James C., O'Keefe, Jennifer M. K., Rodrigues, Sandra, Ribeiro, Joana and Guedes, Alexandra (2013) Notes on the origin of altered macerals in the Ragged Edge of the Pennsylvanian (Asturian) Herrin coalbed, Western Kentucky. International Journal of Coal Geology, 115 24-40. doi:10.1016/j.coal.2013.05.001


Author Valentim, Bruno
Hower, James C.
O'Keefe, Jennifer M. K.
Rodrigues, Sandra
Ribeiro, Joana
Guedes, Alexandra
Title Notes on the origin of altered macerals in the Ragged Edge of the Pennsylvanian (Asturian) Herrin coalbed, Western Kentucky
Journal name International Journal of Coal Geology   Check publisher's open access policy
ISSN 0166-5162
1872-7840
Publication date 2013-08-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.coal.2013.05.001
Open Access Status Not Open Access
Volume 115
Start page 24
End page 40
Total pages 17
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract The Ragged Edge of the Herrin (Western Kentucky No. 11) coal bed has a variety of maceral textures and assemblages that do not fit in the conventional vitrinite and inertinite definitions as established by the International Committee for Coal & Organic Petrology. Within a narrow zone at the marine margin of the coalbed, the coal is brecciated and cemented by carbonate with some of the brecciated clasts metamorphosed to anthracite-level vitrinite reflectances. This is in contrast to the ambient high volatile C bituminous coal rank in the region. Low-rank peat-like textures are preserved in the clasts, suggesting that the metamorphism took place soon after deposition of the peat. Geochemical and mineralogical evidences suggest that the increase in reflectance was the consequence of the channeling of hydrothermal fluids through the breccia. The narrow zone of metamorphism and, further, the juxtaposition of breccia clasts of varying degrees of metamorphism suggest that the hydrothermal influx occurred at shallow depths of burial, perhaps shortly following deposition of the peat.
Keyword Geochemistry
Marine margin
Hydrothermal
Carbonate
Coal metamorphism
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID PEst-OE/CTE/UI0039/201-Ul 39
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Earth Sciences Publications
Non HERDC
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 1 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sat, 02 Nov 2013, 18:23:24 EST by Sandra Rodrigues on behalf of School of Earth Sciences