262 P7 ^^■^S^^rw I foWAIAii^ ■H^i^^w^ Hh^ ■,'^a/^i BOUGHT WITH THE INCOME PROM THE SAGE ENDOWMENT FUND THE GIFT OF Henirg W. Sage 1891 fNGlNEERING LIBRARY ^ ___ d''/'?^.^6 7fM/W. /-.■r ns» «£2r2*" University Library QE 262.P7C64 1889 '■'''e geology of the Plashetts and Kielder 3 1924 004 554 840 Cornell University Library The original of tiiis book is in tine Cornell University Library. There are no known copyright restrictions in the United States on the use of the text. http://www.archive.org/details/cu31924004554840 MEMOIRS or THE GEOLOGICAL SURYEY. ENGLAND AND WALES. THE GEOLOGY OF PLASHETTS AND KIELDER ^EXPLANATION OF QUARTER-SHEET r08 S,W., NEW SERIES, SHEET 7.) BY G. T. CLOUGH^ M.A., F.G.S. (Notes on the CuMBfiELANo Portion by Hugh Millke, A.B.S.M., F.G.S.) FITBLISHKD BT ORDEB OS TBE LORDS COMMISSIONERS OF UEB JIAJ&BIT'S IR£ASVBT. LONDON: PBINTED FOR HER MAJESTY'S STATIONERY OFFICE. BY EYRE AND SPOTTISWOODE, PEINTEHB TO THE QPEES'S MOST BXCEIIEKT MAJEBIY. And to be puTchased, either directly, or through any Bookseller, from EYEB AHD SP0TTI8W00DE, EAST Hardiks Steebi, Fibet Street, E.C. ; or ADAM AHD CHARLES BLACK, 6, North Bridge, Edikburgh; or U0II6E8, FIGGIS, & Co., 10+, Geabtoh Street, Subliit. 1889: I'rice One Shilling. LIST OP MAPS, SECTIONS, AND PUBLICATIONS OF THE CEOLOCICAL SURVEY. Tan mapa ara tliose of tho Ordnance Surirey, iiBoloj^oaUy coloured by the Geological Survey of tiic United Kingdom, und«" the Superintendence of Akoh.Geikib,L1i.I>.,1?.K,.8., Director General. , , „ ^,. *or Maps, Sections, and Memoirsillustrating Scotland, Ireland, and the West Indies, and for hill particulars of allpublu^ tions, see " Catalogue." Price 1».) ENGLAND AND WALES.— (Scaleone-inchtoamile.) Maps marked • are also published as Drift Maps. Those marked t are published only as Drift Maps. i Sheets s; e, 6», 7*. 8«, 9, 11 to 22, 25, 20, SO, »1, 33 to S7, 40. 41, «, «•, 61*, 65t, f>8t, 70*. 8,')*, 88*, price 8». dd each. Sheet 4, 5». Sheets 2«, 10, 23, U, 27 to 29, 32, SS, 39, 58, Sit, 85t, *». each. I. of Wight ( New Series), 6». Sheets divided into quarters ; all at S«. each quartei'-sheet, excepting those in brackets, whiih are 1«. 6d. each. 1*. 42, 4S, 45, 46, N W, SW, NE*, SJli, 48, NWt, S W*, NEt, (SE*), U9t), 50t, 51», 52 to 67. (57 N W), 59 to 63, 66 SWt NBt. K W, SUt, 67 Nt, (St), 68 Et, (MW*),SWt,7l to7S, 7B.(N' ■ ' " " "* """'^"'* ""«»"■»"■'- -">■- "- SB. 61 N W •. SW, NB, 8E, 82, 83', 87, 88, NW, S W*. NE, SE, 89 N % SK*,92SW«,SE, 93N\V,8W, NE«, SE', 94NWt,SWt, (NEt),__ .. ,. - --- SK. 99 (NE«), (SB*), Ifll SE, 102 NE*, 103*, 104*, 105 NW, SW, (NE*), SE, 106 NE* SE*, 107 SWt. NB*. SB*, 108 SW*, NB». 109 SW. SB*, 110 (N W*), (NB*), S W*. / BOXIZOIVTAX. SBCTIOirS, VESXXCA.X1 SECTZOB'S, 1 to 139, Eugland, price Ss. each. 1 to 78, Knglaud, price 3s. 6i2. each. COIKPXiETZiB COUHTIES OF ENGZ.AWD AJ7D WAIES, on a. Scale of one-inch to a Mile. Sheets marked * have Descriptive Memoirs. Sheets or Counties markedt are illustrated by General Memoin. ANGLESEIt,-77N,78. Hor.Sect.40. BBDFOEDSmEE,-46NW,NE,SWt, SEt, 52 NW, NE, SW, SE. BHRKSHIEE,— 7*, 8t, 12*, 13*, 31*. 45 SW*. Hor. Sect. 50, 71, 72, SO. BEECKNOCKSHIREt,— 36, 41, 42, 56 NW, SW, 57 NE, SB. Hor. Sect. 4, 5, 6, 11,' and Vert. Sect.4»nd 10. BUCKINGHAMSHIEB,-7* IS* 45* NE, SE. 46' NW, SWt, 52 SW. Hor. Sect. 74, 7^ 0ABKMAETHENSHIEEt,S7, 38, 40, 41, 42 N W, SW, 66 SW, 57 SW, SE. Hor. Sect. 2-4,?)*: and Vert. Sect. S-6, ISJl- - OA.EBNAEVUNSHIEB,t— 74 NW, 75, 76, 77 N, 78, 79 NW, SW. Hor. Scot. 28, SI, 40. ^^ -.--^ 0AMHEIDGESHIEE.t-4B NE, 47*. 51*, 52 SE, 64*. ^"1^^ "^ CAEDIGANSHIEBt,— 40, 41, 56 NW, 37, 68, 59 SE, 60 SW. Hor. Sect. 4, 5, 6. OHBSHIEB,— 73 NB, NW, 79 NE, SE, 80, 81 NW*, SW*, 88 SW. Hor. Sect. 18, 43, 44, 60, 64, 65, 67, 70. OOENWALLt,-24t, 26t, 26t, 29t,'30t, Sit. SSt, & S3t. DEKBlGHt,— 73NW,74,75NB,78NE,SE,79NVV,SW,SB SW. Hnr.Sect.31,S5, SS, 39,.4S, 44; and Vert. Seef. 2fc DEKBYSHIRKt,— 63 NE, 63 NW, 71 NW, SW, SE, 72 NB, SE, 81, 83, 88 SW, SE. Hor. Sect. 18, 40, 60, 61, 69, 70. " DEVONSHIEEt,-20t, 21t, 2at. 23t, 24t, 25t, 26t,i; 27t. Hor. Sect. 19. DORSETSHIEB,— 15, 16, 17, 18, 21, 22. Hor. Sect. 19, 20, 21, 23, 66. Vei-t. Sect. 22. ESSEX,— 1*. 2*. 47*. 4S. Hor. Sect. 84, 120. FlilNTSHIEEt,— 74 NE, 79. Hor. Sect. 43. OLAMOEGANSHIEEt,— 20, 36, 37, 41, & 43 SE, SW. Hor. Sect. 7, 8,9, 10, 11; Vert. Sect. 2, 4, 5, 6, 7, 9, 10, 47. GLOUOESTEBSHIEB,— 19, 34*, 35, 43 NE, SW, SE, 44*. Hor. Sect. 12 to 16, 69; Vert. Sect. 7, 11,15, 46 to 51. HAMPSHIEE,— 8t, 9t. 10*, lit, 12*, 14, 16, 16. Hor. Sect. 80. HBEEFORDSHIEB,— 42 NB, SE, 43, 66, 56 NE, SE. Hor. Sect. 5, 13, 27, 30, 34 ; and Vert. Sect. 16. HBETFOEDSHtBE,— It N W, 7*, 46, 47*. Hor. Sect. 79, 120, 121. HUNTINGDON,— 51 NW, 52 NW, NE, SW, 64*,66. KENTt.— It SW & SE, 2t, St. 4*, 6t. Hor. Sect. 77 and 78. ilANOASHIEE,— 79 NB, 80 NW*, NE. SI NW, 88 NW, SWt, 89, 90, 91, 93 S W, 98. H. S. 02 to 68, 83 to 87. V S 27 34 61 IBICESTERSHIRE,— 53 NE, 62 NE, 63*, 64*, 70*, 71 SE, SW. Hor. Sect. 46, 48, 49, 52, 122, 124, 125 UNCOLNSHIREt,— 64*. 65, 69, 70*, S3*, 84*, 86*, 86*. MEEIONBTHSHIEEt,— 69 NE, SB, 60 NW, 74, 73 NE, SE. Hor. Sect. 26, 28, 29, SI, S3, 36, 37, 38 39 MIDDIiBSEXt,— ltNW,SW, 7*; St. Hor. Sect. 79. MONMOUTHSHIRE,— 86, 36, 42 SE,NE, 4S SW. Hor. Sect. 6 and 12; and Vert. Sect. 8, 9, 10 12 MONTGOMBRYSHIEEt,— 66 NW, 59 NE, SB, 60, 74 SW, SE. Hor. Sect. 26, 27, 29, 30, 32, 34 85 S6 38 NORFOI/Kt,-50NW*, NE*,6**, 65*,66*,67,68*,69. ■ - • NOBTHAMPTONSHIEE,-64. 45 NW, NB, 46 NW, 52 JjW, NE, SW, 63 NE, SW, & SE, 63 SE 64 NOTTINGHAM,-70*,71*NE,SE,NW,82NE*,SE», SW,S8,88,S7*SW. Hor. Sect. 60, 61. OXFORDSHIEE,— 7*, 13*, 34*, 44*, 46*. 53 SE", SW. Hor. Sect. 71, 72, 81, 82. PBMBROKESHIREt,- 38, 89, 40, 41, 68. Hor. Sect. 1 and 2 ; and Vert. Soot. 12 and 13. RADN0RSHI[!B,-4S NW.NE, 66, 60 SW, SE. Hor. Sect. 5, 6, 27. BUTLANDS HIRBt,— this county is wholly included within Sheet 64.* ^^Tsf 6\ya'nd^^rt^lec?f2r24.™ ''^' '^' "'■ '' '''^' "' " ^'^^ ^^^ "^o^- «^<"- '*■ '- '">■ ^- S*- 3^- «. *K S0MBESETSHIRE.-18, 19, 20, 21, 27, 35. Hor. Sect. 15, 16, 17, 20, 21, K2; and Vert. Scot 12 46 47 4X in Kn bi STAPFORDSHIRE,-64 NW, 65 NE, 61 NE, SE, 62, 63 NVT, 71 SW, 72, 73 NE, SB, 81 SE SW ' h'^/ w Vo «. 24, 25, 41, 42, 45, 49, 54, 67, 61, 61): and Vert. Sect. 16, 17, 18, 19, 20, 21, 28, 20. ^'"''- ^^' "*' SUFFOLK,- 47,* 48,* 49, 50, 61, 66 SB*, 67. aUEBBT,— 1 SWt, 6t, 7*, 8t, 12t, Hor. Sect. 74, 75, 76, and 79. SUSSEX,- 4*, 6t, 6t, 8t, 9t, lit. Hor. Sect. 73, 75, 76, 77, 78. WAEWIOKSHIBE,-44*,45NW, 53*, 54, 62 NB, SW, SE,63NW, SW, SE. Hor. Sect. 23 48 to 61- Vert SpM ,1 WII,TSHIEB,-12*, 13*, 14, 16, 18, 19, 34*, and 36. Hor. Sect. 15 and 69 ' °'"'- ^^ •WOECBSTEESHIEE,-43 NE, 44*, 61, 65, 62 SW, SB, 61 SE. Hor. Seot.lS, 23, 26. 60. 59, and Vcrt.Sect. 16, GSTSEKAX. laEIVXOXKS OP THE GEO&OCXCAK SVSVET-. BBPOET on CORNWALL, DEVON, and WEST SOME ESBT. By Sir H. T. De La BbOhe 14* f O P » Guide to the GEOLOGY of LONDON and the NEIGHBOURHOOD. By W. Whitaibe. 4th Ed. Is. A. I -J" ^ 7 1 PREFACE. The area included in the Map described in tlie present- Explanation lies along tlie nortli--western borders of Northumberland and Cumberland, and includes the upper waters of the Eiver North Tyne and its tributaries. It was surveyed by Mr. 0. T. Clough (with the exception of the Cumberland portion, about half a square mile in extent, which is the work of Mr. Hugh Miller,) under the supervision of Mr. H. H. Howell. Almost the whole of the ground lies upon the lower members of the Carboniferous system. There can be little doubt that the Lewisburn and other coals of this region are the strati graphical equivalents of the " Soremerston beds" in the Carboniferous Limestone Series of the north-eastern portion of Northumberland. The determination of this point is the chief feature in the investigation of the district by the Geological Survey. The six-inch sheets of the Ordnance County Maps included in the area of Quarter-Sheet 108 S.W. one- inch, are, Cumberland Sheet 2 ; Northumberland, Sheets 33, 40, 48, 49, 57, 58, and the western borders of Sheets 34 and 41. The ground was surveyed geologically on the six-inch scale, and MS. copies of these sheets are kept in this office for consultation by the public. The fossils mentioned in this Memoir have been mainly determined by Messrs. Sharman and E. T. Newton, who have also revised all the fossil-lists here given. AEOH. GEIKIE, Director-General. Geological Survey Office, 28, Jermyn Street, London, 20th December 1888. E 66137. Wt. 1S119. X 2 CONTENTS. Frei'acis. Chapteb Chapter Chapter By the Directoi General Page I. II. in. iNTRODtrcTiON. Physical Geography. Geological Litera-- ture. Table of Formations. Silurian Boces - - 1 Carboniferous Boces. Lower Freestones, stone Group. Fell Sandstones - Cement- Chapter IV. CARnoNiPEROUs RocKS — Continued. Paleeontology. Ce- mentstone Group, Fell Sandstones - - - 11 Carbonifebous Contemporaneous Igneous Bocks. Carter Fell Tuff, or Ath. Carter Fell Batalts - 16 Chapter Chapter Chapter Chapter Celapter CHAFXEa Chapter V. Intrusive Basaitio Boces • • - - 18 VI. Fault-Breccias, and Minerals contained therein - -25 VII. Glacial Beds. Foreign Boulders - - • 26 VIII. Becbnt Deposits. Alluvium. Peat, Landtlips - 33 IX. Geological Structure. Geological Horizon of the Lewisburn beds. Faults - - ■■ - 36 ^. Some A