...I. M. Mason Abstract A high proportion of faces started in mechanized coal mines run into underground faults. The faults take many forms, from the splitting of a seam through a hidden stress pattern caused by subsidence or folding, to a washout or a vertical throw. All faults reduce face output...

...', and their detection and delineation in the subsurface is of paramount importance. A palaeochannel system in the roof of the High Hazles Coal (Westphalian B) at Gedling Colliery, Nottinghamshire, is described. The roof strata of this seam are interpreted as the deposits of a lacustrine delta complex formed on an upper...

... abandonment plans of Gedling Colliery High Hazles seam were obtained from the Coal Authority Mining Records Office, Bretby, Burton-on-Trent. The 1:10 560 scale ‘seam plans’ were the main source of mine plan data for the VULCAN model. These plans are held at the Mining Records Office, from where paper...

...Fig. 16. High Hazles cannels are tracked from outcrops through Creswell and Whitwell mining data to Gainsborough. In the west, cannel is present in the full seam, which splits eastwards. The resulting coalbeds both include cannel. Cannel in the united seam and lower coalbed is shown in lighter...

...). “Algebraic reconstruction of a two-dimensional velocity inhomogeneity in the High Hazles seam of Thoresby Colliery” by Mason (G eophysics , 1981). “Channel wave mapping of coal seams in the United Kingdom” by Mason et al. (G eophysics , 1980). “Analysis of digital inseam reflection and transmission surveys...

... reconstruction , IEEE Trans. Geos. Rem Sens. 18 , 234 - 240 . Mason I. M. (1981) . Algebraic reconstruction of a two-dimensional velocity inhomogeneity in the High Hazles seam of Thoresby Colliery , Geophysics 46 , 298 - 308...

... reconstruction of a two-dimensional velocity inhomogeneity in the High Hazles seam of Thoresby Colliery, Geophysics 46, 298-308. McMechan, G. A., J. M. Harris, and L. M. Anderson (1987). Cross-hole tomography for strongly variable media with applications to scale model data, Bull. Seism. Soc. Am. 77, 1945-1960...

.... 4b (n = 76), all dip readings on normal faults from the three study areas (n = 3131). (Q CF curves for the mean dips of normal faults recorded within selected stratigraphic intervals: Clowne/Main Bright to High Hazles (n = 9), High Hazles to Top Hard (n = ll), Top Hard/lst Waterloo to Deep Soft/Deep...

.... The Richardson (1785) and Millar (1800) sections show both a High and Low Quarry Hazle (Millar's beds 32 and 34) between the Great Limestone and the Four Fathom Limestone, whereas the Walton and Forster sections do not. Forster (1809 , p. 35) noted this lateral variability: ‘This stratum is of various...

... the best. Today, Forster’s reputation in northern England is probably as high as it has ever been. A further indication of the high regard in which Westgarth Forster’s name has been held locally is the treatment of his tombstone. Funds were raised by public subscription to replace the massive inscribed...

... in the High Hazles seam of Thoresby colliery : Geophysics , 46 , 298 – 308 . McMechan G. A. , 1983 , Seismic tomography in boreholes : Geophysical Journal of the Royal Astronomical Society , 74 , 601 – 612 . Nuttall A. H. , 1975 , Estimation of cross-spectra via overlapped fast...

... Sequences 1984 7 International Association of Sedimentologists 291 308 Special Publications Guion P. D. Palaeochannels in mineworkings in the High Hazles Coal (Westphalian B), Nottinghamshire, England Journal of the Geological Society, London 1987a 144 471 488 Guion P. D...

..., 291-308. - 1987a. Palaeochannels in mine workings in the High Hazles Coal (Westphalian B), Nottinghamshire Coalfield, England. Journal of the Geological Society, London, 144, 471-488. - 19876. The influence of a palaeochannel on seam thickness in the Coal Measures of Derbyshire, England. International...

... Mason I.M. 1981 Algebraic reconstruction of a 2-D velocity inhomogeneity in the High Hazles Seam of Thoresby Colliery Geophysics 46 298 308...

... and attenuation anisotropy caused by microcracks and macrofractures in a azimuthal reverse VSPs : Canadian J. Expl. Geophys. , 29 , 177 – 188 . Mason I. M. , 1981 , Algebraic reconstruction of a two-dimensional velocity inhomogeneity in the High Hazles seam of Thoresby colliery : Geophysics , 46...

...-dimensional velocity inhomogeneity in the High Hazles seam of Thoresby colliery : Geophysics , 46 , 298 . McKenna S. A. Poeter E. P. , 1995 , Field example of data fusion in site characterization : Water Resources Research , 31 , 3229 – 3240 . Mavko G. Mukerji T. Dvorkin...

... . Guion , P.D. 1987 b . Palaeochannels in mine workings in the High Hazles Coal (Westphalian B), Nottinghamshire Coalfield, England . Journal of the Geological Society, London , 144 , 471 – 488 , http://doi.org/10.1144/gsjgs.144.3.0471 Guion , P.D. & Fielding , C.R. 1988...

... 2.9 2.9 10.8 INT(west) 20 17189 SK 4400 6081 Sst c. 50 m above Top Hard Coal 0.0 1.0 1.0 1.5 GM/B 21 17194 SK 4550 6400 Sst between Top Hard & High Hazles coals 60.0 5.7 1.5 1.5 GM/B 22 17854 SK 4574 6606 Sst between Top Hard & High Hazles coals 65.6 4.8 1.5...

... in the High Hazles Coal (Westphalian B), Nottinghamshire Coalfield, England . Journal of the Geological Society , 144 , 471 – 488 , https://doi.org/10.1144/gsjgs.144.3.0471 Guion , P. and Fielding , C. 1988 . Westphalian A and B sedimentation in the Pennine Basin, UK . In: Besly, B.M...