Editing A sequence-stratigraphy scheme of the Late Carboniferous, southern North Sea, Anglo-Dutch sector

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| Westphalian B (Duckmantian) ||  || L. ''similis-pulchra'' || TST || 307.5 || Top Hard (Barnsley) Coal || Swamp/lake mdsts with common coals and marine bands in the upper part. Local high sinuosity ssts || Upper NJ || Common ''Lycospora'' spp. and ''Densosporites'' spp. Appearance of ''V. pseudoreticulata, P. granifer'', ''Triquitrites'' spp., ''P. perinatus'' & ''C. solaris'' Extinction ''R. fulva'', ''D. bireticul''. & ''C. bucculentus''
 
| Westphalian B (Duckmantian) ||  || L. ''similis-pulchra'' || TST || 307.5 || Top Hard (Barnsley) Coal || Swamp/lake mdsts with common coals and marine bands in the upper part. Local high sinuosity ssts || Upper NJ || Common ''Lycospora'' spp. and ''Densosporites'' spp. Appearance of ''V. pseudoreticulata, P. granifer'', ''Triquitrites'' spp., ''P. perinatus'' & ''C. solaris'' Extinction ''R. fulva'', ''D. bireticul''. & ''C. bucculentus''
 
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|  ||  || U. ''A. modiolaris'' || LST/HST || 310 || Vanderbeckei MB || Well developed low sinuosity ssts with some mouth bar and crevasse splay units || Lower NJ || Common ''Crassispora kosankei, Vestispora costata'' and ''Laevigatosporites'' spp. Appearance of ''D. bireticulatus'' and ''Endosporites globiformis''
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|  ||  || U. A. modiolaris || LST/HST || 310 || Vanderbeckei MB || Well developed low sinuosity ssts with some mouth bar and crevasse splay units || Lower NJ || Common Crassispora kosankei, Vestispora costata and Laevigatosporites spp. Appearance of D. bireticulatus and Endosporites globiformis
 
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| Westphalian A (Langsettian) || Lower Coal Measures Formation || L. ''A. modiolaris'' || TST || 311.5 || Tupton Coal || Crevasse splay mdsts & sltsts with some low sinuosity ssts || RA || Common ''Lycospora'' spp, ''Krauselisporites'' spp., ''P. nitidus'' & ''P. limbatus.'' Marker ''S. rara'' extinct at top
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| Westphalian A (Langsettian) || Lower Coal Measures Formation || L. A. modiolaris || TST || 311.5 || Tupton Coal || Crevasse splay mdsts & sltsts with some low sinuosity ssts || RA || Common Lycospora spp, Krauselisporites spp., P. nitidus & P. limbatus. Marker S. rara extinct at top
 
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|  ||  || ''C. communis'' || LST || 313.5 || Burton Joyce MB || High sinuosity ssts, with intervening swamp/lake & crevasse units || Upper SS || Acmes of ''C. kosankei'' and ''Vestispora'' spp. Paly. marker ''R. aligerens'' became extinct within zone
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|  ||  || C. communis || LST || 313.5 || Burton Joyce MB || High sinuosity ssts, with inter- vening swamp/lake & crevasse units || Upper SS || Acmes of C. kosankei and Ves- tispora spp. Paly. marker R. alig- erens became extinct within zone
 
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|  ||  || ''A. lenisulcata'' || HST || 315 || Subcrenatum MB || Lake/swamp mdsts and sltsts with some prominent high sinuosity sst units || Lower SS || Acmes of ''Lycospora pusilla'' and ''Densosporites'' spp. including ''D. duritti'' at base. Other acmes of ''C. loricatus'', ''R. difformis'', ''C. bucculentus'' & ''G. varioreticulatus''.
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|  ||  || A. lenisulcata || HST || 315 || Subcrenatum MB || Lake/swamp mdsts and sltsts with some prom- inent high sinuosity sst units || Lower SS || Acmes of Lycospora pusilla and Densosporites spp. including D. duritti at base. Other acmes of C. loricatus, R. difformis, C. bucculentus & G. varioreticulatus.
 
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[[File:YGS_CHR_06_ASEQ_FIG_07A.jpg|thumbnail|Figure 7A Depositional facies in well 44/27-1; (a) Upper A. modiolaris zone. 1:0000 scale.]]
 
[[File:YGS_CHR_06_ASEQ_FIG_07A.jpg|thumbnail|Figure 7A Depositional facies in well 44/27-1; (a) Upper A. modiolaris zone. 1:0000 scale.]]

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