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

• Published in: International journal of coal geology Vol. 57; no. 3; pp. 197 - 210
• Main Authors: Golab, Alexandra N, Carr, Paul F
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 23.03.2004; Elsevier
• Subjects: Australia; Coal; Contact metamorphism; Earth sciences; Earth, ocean, space; Exact sciences and technology; Igneous intrusion; Natural coke; Sedimentary rocks; Stratigraphy; Australia; Natural coke; Australia; Contact metamorphism; Coal; Igneous intrusion; siderite; dawsonite; Permian; oxides; Australasia; X-ray diffraction; contact metamorphism; Upper Permian; principal components analysis; precipitation; Hunter Valley; aluminosilicates; safety; silicates; carbonaceous rocks; coal mines; thermal alteration; concentration; haloes; igneous rocks; carbonates; intrusions; Paleozoic; sedimentary rocks; X-ray fluorescence; correlation; upper Paleozoic; ankerite; coal

Igneous intrusions thermally and geochemically alter coal, commonly causing economic and safety problems for many coal mines. The effects of two dykes on the inorganic content of the Late Permian bituminous Upper Wynn seam were determined from analyses of 44 samples that were collected along transec...