Geology of Coalbrook Dale. 



495 



Average 

 Amount of 

 Disturbance. 



Swinney- 



2t 

 120 



GO 

 100 



50 



40 



35 



50—70 



GO 



0—200 



0—75 



25 

 21 

 30 



21 

 30—6 



30 

 300? 



100—2000 

 100 

 60? 



300? 

 60? 



Longwoo(I+ ... 



N. 65° W. 



N. 65° W. 



N. 40° E. 



N. 15° W. 



N. 60°AV. 

 N. 60°W. 

 N. 77° E. 

 N. 53° W. 

 N. 62°W. 

 N. 55° W. 

 N. 65°W. 

 N. 80° E. 



N. 27° E. 



N. 48° E. 



N. 50° W. 



N.W. 

 N. 34° W. 

 N. .5° E. 



N. 28° E. 



N. 50° W. 



N. 80° E. 

 N. 27° E. 

 N. 65° E. 



N. 33° E. 



N. 27° E. 

 N. 77° E. 



N. 77°E. 

 N. 10° E. 

 N. 53° W. 

 N. 55° W. 



N. 57°E. 



N. 75° W. 



N. 23° W. 



N. 6.5° E. 

 N. 45°W. 

 N. 42° E. 



N. 12° E. 

 N.37°W. 



N. 0S° E. 

 N. 10° E. 

 N. 25° E. 



N. 38° E. 



N. 85° E. 

 N. 40°E. 

 N. 58° E. 

 N. 2° E. 



N.E. 



N.E. 



n 



Ascer- 

 tained 

 Extent 



2 



2 



3i 



3 



H 



|0 0^ 

 'O 5 

 1 1: 



2 



1 2 

 1 1 



2i 



2J 



6 



6 



n 



2 6 



2 4 

 1 4 



3 0? 

 1 0? 

 1 



Side of 

 Highest 



N.N.E. 



S.E. 



W. by S. 



N.E. I)vN. 

 S.W. by S. 



S. by E. 

 S.W. bv S. 



S.S.W. 

 S.W. by S. 

 S.W. bv S. 



S. by E. 



E.N.E. 



S.E. 



N.E. 



S. 



S.W. by W. 



E. 



E.S.E. 



S. 

 E.S.E. 



N.N.W. 



N.W. by W. 



E.S.E. 



N. by W. 



S. by E. 

 W. by N. 

 S.W. by S. 

 S.W. by S. 

 N.W. by N. 



W.N.W. 



S. bv W. 

 E.N.E. 1 

 W.S.W.j 



S.S.E. 



S.W. 



N.W. 



S.W. by W. 



E. by S. 

 S.W. by W. 



N.N.W. 

 E. by S. 

 W.N.W. 



N.W. by W. 



S. 



N.W 



N.W. by W. 



W. 



N.W. 

 S.E. 



20, XXI. X. 



21, XXII. k. 

 Trap, XXIII. Jc. 

 20, XXIV. X. 



21, XXV. k. 



Trap, XXVI. a. 



Trap, XXVII. a. 



Trap, XXVIII. a. 



Trap, XXIX. a. 



r, XXX. li. 



r, XXXI. li. 



r, XXXI.* li. 



r, XXXII. li. 



r, XXXIII. li. 

 r, XXXIV. 0. 

 r, XXXV. 37. 

 r, XXXVI. 35. 

 r, XXXVII. 35. 

 k, XXXVIII. li ? 

 37,XXXVIII.38.= 

 k, XXXIX. x. 



g, XL. li. 



40, XLI. 42. 

 li, XLII. 48. 

 rj, XLIII. 48. 



0, Ra. g. 



li, XLIV. 0. 



44, XLV. 48. 



44, XLVI. 48. 

 48, XLVII. ra. 

 ra, XLVIII. li. 

 47, XLIX. ra. 



bro, L. m. 



50, LI. 54 or 5 



50, LII. 54. 

 m, LIII. 52. 

 Iro, LIV. 52. 



hro, LV, 56. 

 s, LVI. J-. 



X, LVII. s ? 

 s, LVIII. 60. 



s, LIX. x. 



59, LX. X. 



X, LXI. X. 



r, LXII. ,r. 

 X, LXIII. X. 

 X, LXIV. X. 



X, LXV. X. 



r At Little Wenlock this fault brings the edges of the coal niea- 

 1 sures against trap rocks, but there is no mineralogical change : the 

 I strata dip rapidly towards this fault: the trap at Saplin F.irm is 

 |_ probably on the prolongation of it. 

 Brings in the Penneystone 



Runs at right angles to the igneous axis of Steeraway 



Ditto. ditto. 



Runs diagonally to ditto. 

 At right angles to ditto. 



Forms with r and li a detached triangular trough. 

 The strata between these two faults are elevated 30 I 



This is almost an unique example of a series of four small frac- 

 tures ranging in planes parallel to and at short distances from each 

 other. One fault commencing at a little distance from the termi. 

 nation of another. 



Forms with part of rock 3", a s 

 of a shallow portion of the field. 



ngular deep trough in the midst 



Not well known. Runs from the Kctley fault at Lawley, past | 

 the foot of Small Hill towards Coahnoor Farm south, where it j 

 is lost. I 



The course of this fault is not very accurately known. The tri- j 

 angular district included between it and the Lightmoor and the • 

 Great East faults, contains the deepest-seated pnrtion of the coal 

 measures. In 1838 there was but one pit in this district. , 



Commences at Sturchley, increases rapidly at Randley, where the 

 fall is 120 feet, a quarter of a mile beyond it is 180 feet, and in the 

 same proportion to Priorslee. [ 



Thins out at Langley. ! 



Forms with 44 and 48 a small triangular area elevated /3 feet I 

 on all sides. ' 



Forms %vith 45 a small narrow trough 75 feet deeper than the i 

 measures on either side, whilst those included in the trough are ; 

 much pressed up on the sides. 



An anticlinal line, but known in the country as the limestone 

 fault. tSee page 438, bottom line.) 



Ranges in an irregular line, the coal measures rise in steps to. 

 wards it; at Blisses, the coal is scoty, the ironstone is red as if cal- 

 cined, and the shales are hardened, indicating the probable prox- 

 imity of igneous rocks, which however neither reach the surface, 

 nor have been seen under ground. It resembles in these respects, 

 therefore, feulti, and isprobably adisjointed continuation of ^. 

 Fol|nw> the course ofthe Severn. 



Remarkable for destroying the parallelism of the disjointed 

 strata, and its consequent change of relative level at each extre- 

 mitv, being at one end E.N.E. and W.S.W. 



Increases rapidly towards bro. 



Breaks the connection of the limestone escarpment between 

 Benthall Edge and Lincoln Hill. Too well known at Broseley by 

 its causing a speedy and final outcrop of the greater portion oi 

 the coal measures. 

 Very uniform in vertical importance. 



Brings up the Ludlow rocks at Barrow. Probably intersects 

 li, at Tickwood. 



An important disturbance bringing up the Silurian rocks and 

 throwing out all but the lowest strata ofthe coal measures. It is , 

 well exhibited at Swinney and at the Dean Corner. j 



The strata dip rapidly to this fault on the swamp side. j 



The strata rise at an angle of 45° towards this fault in Turner's, 

 yard pit. 



The -trata dip rapidly eastward from thi.^ fault, which rangesi 

 parallel to a small anticlinal line. i 



Is exposed near the Wren's Nest and also at tlie Hobltin-^. [ 



Seen in the brook below the Hook. It ri.iy oiil, nc rmi'^cted ] 

 with the fault which runs along Apley Coj^pice and u.a; Sutton i 

 Maddock. 

 Parallel with the axis ofthe Wrekin. 



Ditto. ditto. These two faults form a narrow, deep ! 



trough in the sniaU coalfield of Longwood. 



