Match!
International Journal of Coal Geology
IF
5.33
Papers
3150
Papers 3181
1 page of 319 pages (3,181 results)
Newest
#1Xiaoyun Yan (CUMT: China University of Mining and Technology)H-Index: 6
#2Shifeng Dai (CUMT: China University of Mining and Technology)H-Index: 49
Last.James C. Hower (UK: University of Kentucky)H-Index: 53
view all 5 authors...
Abstract Some previous studies have investigated the enrichment origin of Sb and Cs in coal, but strong supportive evidence for the sources of the two elements in coal is still absent. The main aims of this study were to provide a better understanding of the geochemical and mineralogical characteristics of the Palaeogene No. 5 Coal from the Zhoujing coal mine, Baise Coalfield, Guangxi Province, southwestern China. The No. 5 Coal has a low rank (0.44% Ro,max; 46.96% volatile matter content), an a...
#1Xiaomei Wang (China University of Geosciences)H-Index: 3
#2Xiaoming Wang (China University of Geosciences)H-Index: 3
Last.Qin Yang (China University of Geosciences)H-Index: 1
view all 8 authors...
Abstract Comprehensive information about the concentrations, distribution, and modes of occurrence of elements in coal are important from the environmental and economic point of view. Although a great number of previous studies have investigated the geology of coalbed methane in the Qinshui Basin, only a few studies focused on the inorganic constituents in coal. More specifically, the mode of occurrences of valuable element Li in the No. 3 Coal is still unclear, although Li was found enriched. I...
#1H.G. DillH-Index: 14
#2J. Kus (BGR: Institute for Geosciences and Natural Resources)H-Index: 10
Last.S. Kaufhold (BGR: Institute for Geosciences and Natural Resources)H-Index: 4
view all 6 authors...
Abstract Along the western edge of the Bohemian Massif, SE Germany, graphitic carbon occurs in metabasic rocks plus calcsilicates, metabiolites, and paragneisses (graphite I), in pegmatites (graphite II) and in mineralized structure zones (semigraphite and impsonite) The current studies unveiled these graphitic carbon compounds are strikingly different with regard to their age and temperature of formation: Graphite I (≥324 Ma, 570 to 625 °C), graphite II (317 ± 3 Ma, >400 °C), semi-graphite (305...
#1F. GoodarziH-Index: 1
#2Thomas Gentzis (Core Laboratories)H-Index: 10
Last.Keith Dewing (Geological Survey of Canada)H-Index: 13
view all 3 authors...
Abstract The influence of igneous intrusions on the trend of thermal maturity with depth in two drillholes, one on Ellesmere Island and the other on Elle Ringnes Island, Arctic Canada, was assessed using vitrinite and solid bitumen reflectance, Rock-Eval pyrolysis/TOC, and gas composition analysis in order to assess the impact of igneous intrusions on the hydrocarbon system in the area. Thick sequences of Permo-Pennsylvanian strata in Sabine Peninsula, Melville Island, were intruded by two igneo...
#1Qian Zhang (RWTH Aachen University)
#2Ralf Littke (RWTH Aachen University)H-Index: 47
Last.Jinchuan Zhang (Ministry of Land and Resources of the People's Republic of China)H-Index: 2
view all 6 authors...
Abstract For many years, the Yangtze Platform has been successfully explored and exploited for petroleum. The Lower Silurian Longmaxi Shale proved to contain commercial quantities of gas, but several other formations might also have a high potential for shale-hosted gas exploration. This paper comprises of geochemical, petrographical, petrophysical and mineralogical information on the major Proterozoic and Paleozoic gas shales in the Upper Yangtze area, which provides insights on the depositiona...
#1Cortland F. Eble (UK: University of Kentucky)H-Index: 26
#2Stephen F. Greb (UK: University of Kentucky)H-Index: 17
Last.Jennifer M.K. O’Keefe (MSU: Morehead State University)H-Index: 1
view all 5 authors...
Abstract The Bell coal bed is one of the stratigraphically oldest coals (Atokan, Duckmantian) in the Illinois Basin that has been commercially mined and occurs near the Morrowan-Atokan boundary, which was a time of significant lithologic change in the basin. The Bell coal occurs as a series of discontinuous pods, in contrast to younger (Asturian) coals in the basin that are thicker and more extensive in occurrence. Thirty-two samples of coal and carbonaceous shale, collected from surface mine, o...
#1Guanglei Zhang (Monash University)H-Index: 1
#2P.G. Ranjith (Monash University)H-Index: 40
Last.D.Y. LiH-Index: 2
view all 6 authors...
Abstract Coal porosity and permeability are highly stress-sensitive. Although the stress-dependent permeability behaviour of coal has been well documented in the literature, few studies are available which directly observe the dependency of fracture aperture, porosity and connectivity on effective stress. In this study, in-situ X-ray tomography was conducted using a novel X-ray transparent tri-axial core holder to provide a detailed characterization of coal fracture network evolution due to incr...
Abstract Palynological studies of the present Permian sediments play a vital role in biostratigraphic and palaeoecological interpretations. Additionally, the palynofacies analysis, Total Organic Carbon (TOC) and δ13C value in the present study focus largely for the palaeoenvironmental and palaeoclimatic reconstruction and also provides information about processes responsible for sedimentary deposits along with their lithological counter parts. The palynological investigation of 306 m deep boreho...
12345678910