International Journal of Coal Geology, 15 (1990) 357-358 357 Elsevier Science Publishers B.V., A m s t e r d a m - - Printed in The Netherlands

Contents Volume 15, 1990

Research Papers Relationships among macerals, minerals, miospores and paleoecology in a column of

Redstone coal (Upper Pennsylvanian) from north-central West Virginia (U.S.A.) W.C. Grady and C.F. Eble (Morgantown, WV, U.S.A. ) .................................................. l

Some Late Eocene depositional environments of the coal-bearing Puget Group of western Washington State, U.S.A. R.J. Burnham (Washington, DC, U.S.A.) ................ ....................................................... 27

Normalized power spectrum of fluorescence spectra alteration: a method of characterizing resins and resinite kerogens J.T. Senftle (Brea, CA, U.S.A. ), X. Wang and I. Lerche (Columbia, SC, U.S.A. ) .......... 53

Chemical analysis of filtrate and condensate from wet-carbonized peat by gas chromatography-mass spectrometry D. Kumari (McLean, VA, U.S.A.) ................................................................................... 63

Book Reviews Innovative Approaches to Mined Land Reclamation, by C.L. Carlson and J.H. Swisher

(Editors) - - J . K . Hardie ................................................................................................... 71 NMR of Humic Substances and Coal: Techniques, Problems and Solutions, by R.L.

Wershaw and A. Mikita (Editors) - - E. Kainka-St~inicke ............................................... 72 Fine CoalProcessing, by S.K. Mishra and R.R. Klimpel (Editors) - - A.D. Waiters ............ 74

Research Papers Vertical distribution of elements in Deposit No. 1, Hat Creek, British Columbia: a

preliminary study P.A. Hill (Cork, Ireland) .................................................................................................. 77

Petrology of graptolites and their utility as indices of thermal maturity in Lower Paleozoic strata in Northern Yukon, Canada C.M. Link and R.M. Bustin (Vancouver, B.C., Canada), and F. Goodarzi (Calgary, Alta., Canada) .................................................................................................................. 113

Geochemistry of tantalum in Bulgarian coals C.M. Eskenazy (Sofia, Bulgaria) ...................................................................................... 137

Group components of main brown-coal lithotypes: thermal reactivity and microscopic characterization S. Cebulak (Sosnowiec, Poland) and J. Szwed-Lorenz (Wroclaw, Poland) .................... 151

The behaviour of major and trace elements in complete vertical peat profiles from three Sphagnum bogs W. Shotyk, H.W. Nesbitt and W.S. Fyfe (London, Ont., Canada) .................................. 163

Sulphur isotopic composition in the Palaeogene coal of Japan T. Shimoyama, K. Yamazaki and A. Iijima (Tokyo, Japan) ........................................... 191

Petrography and rank of the Bhangtar coals, southeastern Bhutan H.S. Pareek (Meerut, India) ............................................................................................ 219

Facies and genesis of Carboniferous coal seams of Northwest Germany K. Strehlau (Bochum, F.R. Germany) ............................................................................. 245

Maceral and palynomorph facies from two Tertiary peat-forming environments in the Powder River Basin, U.S.A. T.A. Moore (Lexington, KY, U.S.A.), R.W. Stanton (Reston, VA, U.S.A.), D.T. Pocknall (Lower Hutt, New Zealand) and R.M. Glores (Denver, CO, U.S.A. ) ............. 293

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The lateral and vertical reflectance and petrological variation of a heat-affected bituminous coal seam from southeastern British Columbia, Canada F. Goodarzi (Calgary, Alta., Canada) and T. Gentzis, (Devon, Alta., Canada ) ............ 317

Synsedimentary volcanic-ash-derived illite tonsteins in Late Permian coal-bearing formations of southwestern China K. Burger ( Essen, F.R. Germany ~, Yiping Zhou and Dazhong Tang ( Kunming, P.R China) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341