http://earthwise-staging.bgs.ac.uk/index.php?action=history&feed=atom&title=File%3AYGS_CHR_07_WEST_FIG_03.jpg 2026-04-15T07:41:04Z Revision history for this page on the wiki MediaWiki 1.42.3 http://earthwise-staging.bgs.ac.uk/index.php?title=File:YGS_CHR_07_WEST_FIG_03.jpg&diff=42011&oldid=prev 2019-08-11T18:03:16Z

<p>User created page with UploadWizard</p> <p><b>New page</b></p><div>=={{int:filedesc}}==<br /> {{Information<br /> |description={{en|1=Figure 3 Variations in mid-Westphalian A to top Westphalian B palaeo-environments, north–south through eastings 450–460. The vertical axis is the geological succession normalized for regional thickness variations to give a time-equivalent display (see main text): therefore, there is no vertical exaggeration. The horizontal axis is a north–south section through the succession; see Figure 5 for location. The suppression of actual thickness variations allows a more ready assessment of the spatial variations in time-equivalent environments. Note: the unions of coals towards an inferred basin margin northwest of York; the importance of the Top Hard seam group; the general lateral continuity of the named coals; and the persistence of channel belts, evidenced by significant fluvial sandstones, throughout most of the succession. All the named seams are considered to demonstrate some base-level control on their stratigraphical incidence, although their detailed thickness variations and coal types will reflect local control, such as the presence of preceding topographic highs.<br /> <br /> {{YGSCarbHydroRes}}}}<br /> |date=2019-08-07 17:43:58<br /> |source=Yorkshire Geological Society<br /> |author=J. H. Rippon<br /> |permission=<br /> |other versions=<br /> }}<br /> <br /> =={{int:license-header}}==<br /> {{subst:Custom license marker added by UW}}<br /> {{YGS}}<br /> <br /> [[Category:Uploaded with UploadWizard]]</div>

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