Zobrazeno 1 - 10
of 50
pro vyhledávání: '"John C. Ferm"'
Publikováno v:
International Journal of Coal Geology. 49:177-194
The Upper Hance coal bed in Bell County, eastern Kentucky exhibits considerable variation in depositional setting on a mine scale. Palynology and geochemistry of the coal are examined in order to supplement previous petrographic examinations. The var
Publikováno v:
International Journal of Coal Geology. 49:105-121
A pictorial guide of cored rocks in the Waikato coal fields, New Zealand, with associated geotechnical and envirotechnical characteristics, has been prepared. The methodology, results (including facies interpretation) and use by mining personnel are
Publikováno v:
International Journal of Coal Geology. 49:93-104
The number of observable properties of sedimentary rocks is large and numerous classifications have been proposed for describing them. Some rock classifications, however, may be disadvantageous in situations such as logging rock core during coal expl
Sulfur variability and petrology of the Lower Block Coal Member (Pennsylvanian) in Southwest Indiana
Autor:
Cortland F. Eble, Penny L. Padgett, John C. Ferm, Susan M. Rimmer, James C. Hower, Maria Mastalerz
Publikováno v:
International Journal of Coal Geology. 39:97-120
The Lower Block Coal Member (Pennsylvanian-Atokan, Westphalian C) is an economic low- to medium-sulfur, low-ash coal resource in the Illinois Basin. Sulfur content is generally low (averaging 1.0%) in the study area, but varies over short distances.
Autor:
John C. Ferm, C.F. Eble, M. Warrell, William M. Andrews, James C. Hower, N.S. Sirek, S.D. Evans
Publikováno v:
International Journal of Coal Geology. 31:151-167
This study investigated the Taylor coal bed in Johnson and Martin counties, eastern Kentucky, using field and petrographic techniques to develop a depositional model of the coal bed. Petrography and chemistry of the coal bed were examined. Multiple b
Publikováno v:
Organic Geochemistry. 24:189-195
Twenty-two Pennsylvanian coal beds from 199 sites in the Eastern and Western Kentucky coal fields were described in terms of lithotypes, i.e. vitrain, bright clarain, clarain, dull clarain, durain, and fusain as well as mineral matter. The characteri
Autor:
Joan Esterle, John C. Ferm
Publikováno v:
International Journal of Coal Geology. 26:1-41
Petrographic and chemical variability in two tropical, low ash, domed peat deposits of similar age and physiographic setting, but different external morphology, were examined as modern analogues for coal. Both occur in microtidal alluvial to deltaic
Publikováno v:
International Journal of Coal Geology. 21:237-259
The stratigraphic and regional variation of petrographic and chemical properties within the coals of the Upper Carboniferous Tradewater Formation and surrounding rocks in the Western Kentucky coal field were analyzed with the intent of constructing a
Autor:
Tim A. Moore, John C. Ferm
Publikováno v:
International Journal of Coal Geology. 21:1-30
A study of an Eocene coal in southeastern Kalimantan , Indonesia shows a relationship between megascopically determined coal types and microscopically determined kinds and sizes of organic components. Microscopic examination of small (3 × 3 × 3 cm)