Properties of a lacustrine subbituminous (k1) seam, with special reference to the contact metamorphism, Soma-Turkey

Changes in geochemistry and mineralogy of thermally altered coal, Upper Hunter Valley, Australia

“…In general, the findings from the current study, which recognises carbonates, quartz and clays as the dominant minerals, are similar to those reported by Kisch and Taylor (1966), Podwysocki and Dutcher (1971), Ward et al (1989), Merritt (1990), Kwienciń-ska et al (1992), Karayigit and Whateley (1997), Querol et al (1997) and Finkelman et al (1998).…”

“…Previous studies of the interaction between coal and igneous intrusions have recognised three to four zones based on coal geochemistry (Ward et al, 1989;Goodarzi and Cameron, 1990;Kwiencińska et al, 1992;Karayigit and Whateley, 1997). Variations in the chemistry of the coal approaching the intrusion in the drill core samples from Dartbrook indicate the presence of three zones (Fig.…”

“…The impact of igneous intrusions on the organic component of coal has been reported in the U.S.A. (Podwysocki and Dutcher, 1971;Bostick and Collins, 1987;Thorpe et al, 1998;Meyers and Simoneit, 1999), Australia (Taylor, 1961;Kisch, 1966;Kisch and Taylor, 1966;Ward et al, 1989;Gurba and Ward, 2000;Othman and Ward, 2002), Antarctica (Brown and Taylor, 1961), China (Zheng et al, 1996;Ren et al, 1999), India (Ghosh, 1967), England (Jones and Creaney, 1977), Poland (Kwiencińska et al, 1992) and Turkey (Karayigit and Whateley, 1997). As noted by Finkelman et al (1998), however, the effect of igneous intrusions on the inorganic constituents of coal has received relatively little attention from researchers other than Goodarzi and Cameron (1990), Merritt (1990), Querol et al (1997), and Querol et al (2001).…”

Petrography, carbonate mineralogy and geochemistry of thermally altered coal in Permian coal measures, Hunter Valley, Australia

“…Golab (2003) and Golab and Carr (2004) used XRD analysis to show the mineralogy of the coal varies with distance from the fingers of the dyke with dawsonite, ankerite, quartz, albite, kaolinite, and mixed-layer clays dominant. Ankerite, albite, muscovite, siderite, and andalusite are restricted to the heated coal with the first The suite of minerals associated with the Dartbrook dykes and aureole, especially the carbonates, quartz and clay minerals have been consistently identified in other dyke-coal associations by other workers such as Kisch and Taylor (1966), Podwysocki and Dutcher (1971), Ward et al (1989), Merritt (1990), Kwiencińska et al (1992), Watkins (1996), Karayigit and Whateley (1997), Querol et al (1997) and Finkelman et al (1998).…”

Palaeoenvironmental reconstruction of Hüsamlar coal seam, SW Turkey

“…Despite high S and pyrite concentrations being common in marine-influenced coals, they are also reported from intermontane basins formed during the Alpine Orogenese in circum-Mediterranean mobile belts (e.g., Querol et al 1995;Karayigit and Whateley 1997;Markic and Sachsenhofer 1997;Taylor et al 1998;Siavalas et al 2009). It seems that sulphur-rich karstic aquifers supplied the palaeomire with freshwater causing neutral to alkaline conditions (Siavalas et al 2009).…”