476 SHAFT SECTION TRAVERSING THE LOWER NEW RED SANDSTONE. 



Section through the Lower New Red Sandstone to the Coal Measures at Christchurch. 



yds. ft. in. 



C Soil, ioam, &c. 

 J Reddish clay . 



Loose 

 materials. 



l_Red sand (incoherent) 



1. Reddish and green argillaceous marl, tending to 



yds. 

 9 



ft. 



in 



0 



0 



1 



2 



0 



10 



0 



0 



4 



0 



0 



3 



0 



0 



2. Dingy red and brown, hard calcareous sandstone, 



with small concretions and blotches of clay, 

 sometimes of greenish colour 2 



3. (Grey rock parting.) Hard calcareous grit, com- 



posed of pinkish and grey fragments of quartz 

 and other rocks, in a calcareo-siliceous cement. . . 0 



4. Deep red argillaceous marl with small spots of 



green (red chinch of miners) 2 



5. Mottled reddish brown marl, arranged in small 



concretions, much more calcareous than the 

 overlying strata (light brown ground) 2 



6. Cornstone, viz. dark purplish brown concretions 



of very impure, compact, argillaceous and ferru- 

 ginous limestone 0 



7. Green and red marl (effervesces slightly) 0 



8. Slightly calcareous grit, mottled dingy red and 



green, with some whitish grains of felspar 0 



9. Deep ruddle red argillaceous marl, in parts slightly 



calcareous 15 



10. Mottled red and green indurated concretionary 



marl, approaching to cornstone 



1 1 . Brownish red and green, mottled, argillaceous marl 



12. Mottled ground, as above, very slightly calcareous 



(rock binds of miners) 5 



13. Slightly pinkish grey grit (identical with No. 3.) 



14. Mottled red and green sandy marlstone 0 



15. Fine grained red, hard, calcareous sandstone, with 



parting 0 



16. Deep red argillaceous marl, with occasional small 



green spots 3 



18* Ditto' J" se P aratec l b y stone partings 



18 Ms. Hard light coloured calc-grit, similar to Nos. 3 



and 13 0 



19. Whitish and mottled green marl (highly calcareous 



in the partings) 0 



20. Deep red marl, as above 4 



21. Mottled brownish marl, small concretionary, cal- 



careous in parts, (fire clay of miners) 0 



22. Ruddle red marl, as above 



23. Mottled layer, like No. 21 0 



24. Deep red and green marl 7 



25. Dark reddish brown argillaceous marl, almost 



shale 



26. Mottled red and green sandy marl, passing into 



marlstone 5 



27. Red marl 2 



28. Dull red, mottled argillaceous sandstone 3 



29. Dullred,argillaceous, slightly micaceous sandstone 



(rock binds of miners) 3 



30. Ochreous shale, reddish surfaces, (yellow fire clay 



of miners) 0 



31. Mottled, dingy purple, calcareous sandstone, with 



a few small deep red blotches of marlstone highly 



calcareous 



(This rock much resembles the " grindstone" of 

 Stanley and Higley on the Severn, see p. 60.) 



32. Deep purple argillaceous marl 0 



33. Light red, fine-grained calcareous grit, almost a 



sandstone, joints lined with small crystals of calc 

 spar, partings of white grit, and basis of decom- 

 posed felspar 6 



34. Deep purple red and green mottled marl 2 



35. Very finely laminated red and white highly calca- 



reous sandstone, with much ferruginous matter 

 (not less than 100 alternations in the 3 inches). 



36. Dull reddish brown shale, argillaceous marl 0 



37. Dingy purple calcareous grit 



4 1 . Dingy red argillaceous grit, very slightly calcareous 



42. Deep red marl 



43. Mottled red and white grit, with decomposed 

 . felspar 



2 6 



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44. Deep red slightly micaceous argillaceous sandstone 



45. Highly micaceous dark red sandstone, very slightly 



46. Dingy red gritty sandstone, with whitish grains of 



decomposed felspar, very slightly calcareous 



47. Fine grained streaked ditto, with very minute 



spangles of mica 



48. Mottled dark and light red concretionary marlstone, 



49. Sandstone, red and greenish, very slightly calca- 



reous and micaceous 



50. Lightish grey sandstone, streaked with purple la- 



51. Dingy red sandstone, with mixed whitish grains of 

 decomposed felspar 



54. Hard dark purplish grit, slightly calcareous and 



white felspar 



56. Hard micaceous marlstone of deep red and spotted 



green colours and small concretionary structure. 



57. Dingy red and greenish grey argillaceous sand- 



stone, with casts of plants, crystals of heavy spar 



58. Pinkish,light grey,hard gritty sandstone, with grains 



of white decomposed felspar, slightly calcareous. 



59. Hard dark red rock and parting ; purple ditto, with 



greenish white spots 



60. Maroon coloured shale (binds), with whitish part- 



ings and a conglomerate at the base 



61. Dark brownish purple and yellowish mottled shale 



(fire clay) 



62. Lilac coloured sandstone, separated by purple binds 



63. Dark red conglomerate with fragments of coal, grit, 



and stems of coal plants, pebbles of older rocks, 

 quartz, &c, cement spotted light green, &c, with 



64. Grey shale in separating bands 



65. Greenish shale bands 



Gritty sandstone 



66. Light grey rock 



67. Dark purple rock 



68. Greenish coloured binds with grey parting 



69. Dark purple binds with red spots . 



73. Light purple and grey ground, becoming a deep 



purple in descending (shale) 



74. Mingled yellow and dark grey ground, with 



78. 

 79. 

 80. 

 81. 



82. 

 83. 

 84. 



85. 

 86. 

 87. 

 88. 

 89. 

 90. 



Grey clunch and streak of coal at 270 

 yards, another at 271J yards, with 



" bat " at the bottom 1 



Grey fire clay and ironstone 



Light greenish grey and red grit, the Esjoley rock 

 of the miners, a sort of volcanic grit, composed 

 of minute pebbles of quartz and trap in a greenish 

 ground, apparently made up of volcanic detritus. 

 Grey binds as way -boards, with seams of smut... 



Dark grey clunch and bat 



Dark coloured fire clay, lighter towards the bottom 



Coal. 



Grey fire clay 



Coal, supposed to represent the " Broach " coal ... 



Grey fire clay rock 



Coal, supposed to represent the " 10 yard coal," 



Grey clunch and " lambstone," an ironstone 



Coal, supposed to be the Heathen coal 0 



"White ironstone ground 



Grey fire clay and ironstone 



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1 " Binds " and 

 hammer. 



Clunch" are varieties of shale. " Bat " is a hard, black, bituminous shale, which sounds bke a board under the 



