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Home , Coryphidium, Cross Fell, Dent Group, Laxey Mine, Skiddaw, Snaefell

Index

Acadian Orogeny 236, 329, collision 315 Bellewstown Terrane 110, 206, 326, 332-334 docking 255 337 conjugate structures 234 Gondwana connection 5, 325 bentonite 328, 332, 333 end of 219 Manx Group in 19 beryl, pegmatites 18 rotation of 93 metamorphism 289 bibliography 345-361 shear zones 195 Midland Platform 136 Bifasciculatus radiatus 41 Acanthodiacrodium spp. 31 passive margin 330 biostratigraphic control 47, 64, 65, A. angustum 27 reconstruction 85 89, 309 A. costatum 29, 32 subduction 174 biostratigraphy, acritarchs 25 A. simplex 29 Avalonia- convergence bioturbation 58, 62, 63, 125, 127 accretionary prism model, Southern 333 turbidites 128-129 Uplands 310, 314, 319 Avalonian margin Birk Riggs Formation acritarchs 17, 19, 23-32 deformation 308 C. lundgreni Biozone 148, 185 biostratigraphy 25 extension 319 interbedded turbidites 315 Glen Formation 61 magmatic arc 208 sandstone chemistry 149, 150 Lady Port Formation 122 mass wasting 66 sandstone-rich facies 206, 208, Manx Group 28--29, 30, 302 sedimentation 19, 121 320 Niarbyl Formation 189 avulsion 197 BIRPS profiles 234 active continental margins 150, 151, Bitter Beck Formation 27, 65, 147, 173 148, 340 Aeglina 34 back-arc, Welsh Basin 137 bivariate plots 142-145 aeromagnetic anomalies 75, 76, 233, back-arc basin Inlier 332, 334 241 Manx Group 19 Black Hut Dyke 297 aeromagnetic maps 229 Newfoundland 313 boninite 313 Aghfarrell Formation 341 Balbriggan Inlier 204, 206 Booley Bay Formation 338 Agneash Grits 13, 48, 140 Ballachulish Granite 302 borehole logs 166 sequences 12, 14, 15 Ballacorkish Vein 246 boreholes, Poortown 155, 156, 166 see also Creg Agneash Formation Ballakaighin Fault 64, 83, 122 boron agrichnia 35 Ballantrae Complex 313, 314 enrichment 114, 148 Aldrick Fault 246 Ballanyre Slump-Breccia 16, 17, 48, in seawater 117 amphibolite facies 15 124 Volcanic Group andalusite 110 Ballaquane Farm 193, 194, 341 batholith 333 andesite Ballastowell 34 clasts 150 photomicrograph 167 Ballure 75 continental arc 174 Poortown 167, 168 Ballycogly Mylonite Zone 228 faulting 329 andesitic rocks 16, 115 Ballyhoge Formation 338, 340 multi-element plots 173 Anglo-Welsh cuvette 219 Ballylane Formation 340, 341 subduction-related 165, 314, 319, Annot Sandstones 93 Baltic Rock 19 330 anticlinal structure 15, 259 acritarchs 27 volcanic arc 5 Appalachians 314 graptoloids 34, 177 boudinage 248, 264, 267 Araneograptus murrayi 23 Baltica 325 Bouguer anomalies 232-234, 241 Arbusculidium filamentosum 31 Barrancos Shale 41 map 233, 299 arc volcanism 4 Barrule Formation relief image 243 calc-alkaline 173 chloritoid in 7 box folds 317 Archaeohystrichosphaeridium description 59-60 Bradda 267 zalesskyi 31 fault-bounded 79 Bradda Head Vein 246 Ardennes 109, 110, 117 lithofacies 75, 83, 84 Braggan Point Fault 252 argon loss 18 lithology 59 Brathay Formation Armorican Massif 86 offset 76 deep water environment 185 Asaphus 34 Barrule Slate 13, 48 hemipelagite 148, 206, 208 Askrigg Block 230 sequences 12, 14, 15, 17 silt-carbon couplets 200, 315 Atlantic Ocean, flow rates 86 basalts, alkali 314 Bray Group 147, 148, 152, 337 augen structures 279 basin inversion 308 Browgill Formation 149, 315 augite, in intrusion 18 basin subsidence 327 Bryn-teg borehole 230 Aureotesta clathrata 29 Beckermonds Scar borehole 230 bulk chemistry 139 Austwick Formation 206 bedding orientation, Manx Group Bungalow Quarry 111,117 Avalonia 227 263, 268 burrows 35, 40-41, 53, 58 basement 235, 236 beds, internal structure 94 mottling 93, 97 364 INDEX

Butter Formation 341 317 crush conglomerates 12, 18, 33, 48, Buttermere Formation 27, 65, 136, climbing ripples 196, 202 122 327, 329 Clonograptus 34 Crystallinium 31 Coldwell Formation 148, 206 Cullenstown Formation 228 collisional event 254 Cumming, J.G. 12 Cahore Group 337, 338 conglomerates 213, 314 Cymatiogalea messaoudensis 23, 31 Cairnsmore of Fleet Granite 317, Coniston Group 148 Cyrtograptus eUesae 185 318, 319 conodonts 314 C. lundgreni 178, 179, 180-181,180 calcareous nodules, garnetiferous contact metamorphism Biozone 148, 185,206, 314 110 Dhoon Granite 74 calcite 158, 167 Granite 15 calcrete 215 continental island arcs 150, 173, D1 structures caldera faulting 329 174, 327 Manx Group 262-264, 263, Caledonian deformation 91,219, contour currents 85 266-267, 271,283, 289 254, 255, 284 contourites 86 Southern Uplands 316-317 Caledonides 17, 128, 218 Contrary Head Quarry 202 D2 structures 264, 267, 271,276, magnetic anomaly 230 convolute lamination 55, 93, 101 284 Calf of Man, fault 246 251 D3 structures 264, 267-269, 271, Calf Sound 11 cordierite 294, 296, 297 284-285 carbonaceous matter 302 distribution 299 Dalby Group 4, 6, 19, 79, 89 carbonates greenschist facies 110 contact with Manx Group 31 concretions 196 in metamorphic axis 17, 290 ichnofauna 35 coticule precursors 110 in Southern Uplands 317 Niarbyl Formation in 49, 190, 209 89 Cornelly, mine 18, 253, 298 Dalradian Supergroup 328 Castletown Group 247, 252 Coryphidium bohemicum 23, 24, 27, debris flows 18, 83, 93, 121-138 Fault 252, 326, 328, 29, 31 model 134 330, 332 C. elegans 31 debrites 121,125, 127 Cautley inlier 315 coticule 62, 109-119, 128 correlation 135-136, 136 cementation 134 analyses 113 high-matrix 131,135 Central Belt 327, 328 chemistry 117 low-matrix 130-131,135 Central Valley Lineament 250-251, Ribband Group 148, 340-341 stratified 133 276 Courtown 339 deep structures, correlation 234-235 cutting imbricate belt 244, 245 Cr 142, 173 delta progradation 84 and Peel Harbour Fault 247 Cr/TiO 2 plots 144 demagnetization plots 161 transfer fault 214 Craven Inliers 206, 208, 325 Dendrograptusflexuosus 33, 178 trend 8 Creg Agneash Formation 56-57, Denhamstown Formation 206 chalcopyrite 114, 253 56 Group 148, 330, 331 channel fill deposits correlation 53, 77, 83, 146 Dent inlier 315 chemistry 143 facies 93, 101-102 Derby-St Ives magnetic anomaly Keristal Member 96, 104 faulted contact 74, 75 230 Niarbyl Formation 197 lithological log 101 Derbyhaven Formation 220 Santon Formation 53, 77, 99 sandstones 89 Dhoon Anticline 51, 74, 89, 93, 261 channel structures 202 Creggan Mooar Formation 59, Dhoon Intrusion 7, 18, 50 Chasms Quartzite 54 61-62 contact metamorphism 74, 297 chevron structures 202, 251,264, carbonate in 5, 79, 115 gravity anomalies 232, 236 284 correlation 83 K-At dating 18 chlorite, Poortown dolerite 168 manganiferous ironstone 116 lineaments 253 chlorite-mica stacks 292, 299 Poortown Intrusion in 166 diagenesis 213, 223 chloritoid younging 29 Dictyodora 35 manganiferous 110 Cregneash 34 D. zimmermani 36-37, 41 porphyroblasts 17, 294, 295, 301 Cregneash Quarry 55 Dictyonema spp. 14, 18 Chondrites 14, 35 Cregneish Pair 266 D. sociale 33, 178 circulation system, Avalonian crenulation 194, 264, 269, Didymograptus spp. 34 margin 85 276, 332 D. hirundo zone 24, 41 clasts Cronk ny Arrey Laa Fault 247 D. varicosus zone 24, 340 geotectonic setting 150-151 Cronk Sumark 19, 33 discrimination diagrams 151,152, Lady Port Fonnati on 131-133, Cronk Sumark Slates 171,173, 205 132 correlation 340 disrupted facies 129-130, 129 Clatterstown Formation 206 graptolites 4, 12 dolerite Clay Head 12, 253 in sequences 15, 17, 48, 64 Lhergydhoo 18 cleavage Cronkshamerk Slates 15 magnetic properties 159-160 Acadian 219 Crosby granite Dyke 297-298 photomicrograph 167 axial-planar 91, 271 Cross 325, 330 pyroxene-rich 167, 169-172 Manx Group 6, 13, 167, 290 Crurmnock Water Aureole 332, 333 Douglas Bay, fault 91 INDEX 365

Douglas Head 77 flow cleavage, axial-planar 15 Gondwana Douglas Syncline 91,261 flow frequencies 93 Avalonia rifting 325 faulting 77 flow-stripping 5, 104, 105 break-up 66, 289 Santon Formation in 53, 74 flows, sorting 99 sediment source 105 shear zone 49, 80, 252 fluids, extra-formational 135 Gothograptus nassa 185 Douglas-Port Erin Tract 11 flute marks 53, 84, 93,202 Grangegeeth Terrane 314 Dowery Hill Member 165, 341 fodinichnia 35 granites Drygill Formation 315, 330 folding batholiths 232 ductile shear 158, 267, 282 Manx Group 7, 91 buried 17, 18, 299 Duncannon Group 5, 337 Peel Sandstones 214 metamorphism 111 Dundalk Bay 206 foliation, phyllitic 125 graptolites 4 dykes 18, 244, 256 fore-arc, faulting 136 Arenig 17, 48 formation 330, 331 Niarbyl Formation 189 Foxdale Granite 6, 7 tool marks 183, 184 Eary Cushlin Unit 61, 79 contact metamorphism 15, 298 Tremadoc 19, 48 East Irish Sea Basin 221 gravity anomalies 232, 233, 236, graptoloids 33-34 elvans 18, 297 250 gravity models 234-235,234 end-member mixing 144, 145 K-Ar dating 18 gravity survey 18 Ennerdale Granite 330 metamorphic aureole 17 Greeba Lineament 76, 251 epicule 118 Foxdale Vein 253 Greeba Magnetic Low 251 epidote 168 fracture cleavage 15 greenschist facies 110, 167 erosional contacts 197 fragmentation 134 Orbs Armoricain 86, 151 erosional scouring 93, 96 Frankea hamata 24, 29 Eskdale Granite 330 E sartbernardensis 32 Eu anomalies 173 fucoids 35 Harrogate Basin 230 Eubonia Fault 80, 247 Fumess Inlier 333, 334 Hawick Group event stratigraphy 66 Furness-Norfolk feature 230 brittle faults 284 exhalation, sea-floor 117 correlation 147 Eycott Volcanic Group 150, 165, red mudstones 315 174, 329 gabbro, Oatlands Intrusion 18 sandstone composition 316 Gala Group 310, 316 SiO 2 content 149, 151 253 heat flow 329 facies architecture, turbidites Galloway magnetic anomaly 227, hematite 158, 167, 217, 220 196-197 228 hemipelagite facies classification 92-93 Gander Terrane 231 and graptolites 177, 180, 192 Faeroe-Shetland Channel 86 Gansey Fault Zone 246 in Niarbyl Formation 190, 199, fault breccia 249, 252 garnets 17, 109, 112, 290 206 fault duplex 234, 239, 253 manganiferous 295,296, 301, Southern Uplands 315 fault gouge 124 302 high-strain zones 276-283 fault repetition 81, 83 Gasgale Thrust 330 Highland Border Complex 313 fault rock 123 geochemistry, sandstones 140 highstands fault scarps 84 geosyncline concept 16 late Tremadoc 66 fault zone, Niarbyl/Manx contact Girvan 314 progradation 84 194 Glen Auldyn Fault 83 Hollywood Shear Zone 337 faults Glen Auldyn Lineament 251 Holywell Shale 7 brittle 195, 272 Glen Dhoo Fault 83 Hope Beck Formation 27, 32, 65, extensional 136 Glen Dhoo Flags 15, 17, 64 147, 340 hydrothermal fluids in 241 acritarchs 23, 27, 32, 104 homfels 298 magnetic anomalies 233-234 Glen Dhoo Unit 76, 83 Hunnegraptus copiosus 23 Manx Group 239 Glen Helen 76 hydrocarbons maps 250, 254 Glen Helen Lineament 83, 84 Irish Sea Basin 7 mineralized 49, 75 Glen Maye 282 uraniferous 18 northeast 91 Glen Mooar 27 hydrofracturing 134, 135 Poortown intrusion 156, 167 Glen Roy 75 hydrothermal fluids, in faults 241, strike-parallel 61,261 Glen Rushen, mine 18 246 strike-slip 255 Glen Rushen Formation 61 faunal convergence 315 acritarchs 24, 27, 32 Fe203/SiO2 plots 143, 150 correlation 59, 76, 83, 341 16, 307 felsite intrusions 62, 112, 114 Glenfaba Brickworks 31 active margin 314 Fheusta179 Glenmaye 27 closure 19, 152, 160, 165, 220 fining-upwards structures 84, 97 Glion Cam Unit 29, 31, 64, 79, 83, spreading ridge 333 fish faunas 307 84 subduction 4, 308, 314, 330 Fleshwick Cove, garnets 111 Glockerichnus radiatus 37, 41 Iapetus Suture 1,227 Fleshwick Unit 58, 75, 79, 80, 246 Gob ny Garvain 55 position 19, 325 366 INDEX ichnofauna 35-44, 36, 37, 39, 40, 42 Knockaloe Moar Lineament 197, lithostratigraphic units 74 41, 42 198, 208 maps 81,245 ignimbrite 331 komatiite 168 section 81, 82 illite crystallinity thickness 78, 81 Fleshwick Unit 79, 246 lithostratigraphy, Manx Group 24, and heat flow 333 La/Yb ratio 173 45-68, 76, 140 Injebreck Formation 76 Lady Port Banded Group 16, 17, 48 lithotypes, map 73 map 301,302 Lady Port Formation 5, 24, 62--64, Llanvirn, acritarchs 24 Group 328 63, 80 lobes, sand 96, 102, 103 ilmenite acritarchs 23, 29, 32, 122, 340 Flags 4, 12, 48, 140 magnetic mineral 233, 241 clasts 131-133, 132 acritarchs 23 in pelites 293-294, 294 debris flows 121-138, 130 Arenig 177 in quartz veins 18 facies 126 sequences 12, 14, 15, 17 imbricate belt 243 faulted 84 Lonan Formation 50--52, 51, 74, 75, Ingleton Group 325 manganiferous ironstone 116 77 Injebreck Banded Group 15, 17, 48 protolith 133 active continental margin 151 Injebreck Formation 60-61, 75 section and map 123 depositional setting 95 correlation 80, 83 structure 124-125 facies 92, 93-95 illite crystallinity 76 summary logs 124, 127 geochemistry 152 lithofacies 49, 79 Lag ny Keeilley Shear Zone 60, 112, sandstone units 89 shear zone 112 208, 276-278, 277 Lonan and Niarbyl Flags 16 intercalation, sedimentary 270 section 114 Lower Old Red Sandstone 217 intrusion-related lineaments 253 Lagman Fault 8, 247 Loweswater Formation Irish Sea, regional map 228 2 acritarchs 27 Irish Sea Basin 224 Batholith 285 correlation 65, 147, 340 ironstone equivalence 23 lithofacies 5, 86, 105, 327 analyses 113 folding phases 17 Loweswater Thrust 330 carbonate 115 geological map 326 lowstands 84, 85 log section 116 inlier 325 Lowther Lodge Fault 206, 337 manganiferous 109, 125 Lake District-Wexford Terrane 165 Lynague Shear Zone 248, 254 Lakesman Terrane 318 Lynague Strand 116, 125, 128, 131 coastal localities 70 laminar shear 133 faults 240 lamination geological maps 13, 26, 122, 141, Lonan Formation 50 Macaronichnus segregatis 37-38 215, 260, 291 Santon Formation 52 MacCulloch, J. 11 geological setting 1 Lamplugh, G.W. 12-14, 47 macrofauna 33--44 location map 2, 111 lamprophyres 18 locality map 34 metamorphic maps 299, 300, 301 Langness, structural map 267 magmatic arc sources 205 rotation 220, 283 Langness Conglomerate Formation magmatic doming 135 section 266 7, 213, 220 magmatism, destructive margin 166, stratigraphical record 3 palaeomagnetism 221-224, 223 173 structural maps 265, 270 Laurentia 227 magnetic anomalies Isle of Man Syncline 112 accretionary margin 150, 228, 312 Iapetus Suture 227 lsograptus gibberulus zone 24 collision 19, 289, 314 imbricate belt 245 compared with Avalonia 313 linear 241 triple junction 325 long wavelength 235 K-Ar dating Bay 50, 253 map 157 Dhoon Intrusion 18 18, 253 models 160-161 Foxdale Granite 18 , 251 regional 227-228 Keristal Member 49, 51, 51-52, 55, Leinster Granite 110, 337,341 magnetic basement, modelling 74 Leinster Terrane 2, 206, 326, 337 230-232, 232 correlation 146-147 map 338 magnetic intensity images 242 facies 93, 95-97 levee deposit 77 magnetic lineaments 230 lithological logs 96 Lhergydhoo 18 magnetic profiles 162 thickness 97 LIL enrichment 173 magnetic survey 158-159 Keys Fault 8 lineaments magnetization Kilcullen Group 316, 337 intrusion-related 253 chemical 213,222 kink folds 264 maps 244, 250 depositional 213 Kirk Michael 49 listric fault 195 detrita1213 Kirk Stile Formation lithification, partial 133 major elements, PCA 145 acritarchs 27, 29 lithofacies 16, 73-74 Managh Slieau Slates 17 correlation 65, 147 samples 72 Manannan Basin 85-86, 236, 255 mudstones 5 schemes 69, 70, 71, 92 manganese 58, 62, 109, 125-127, Rb-Sr age 330 lithological mapping 309 148 INDEX 367

Manx Basin, sediment source 19 Midlands Microcraton 230 structure 194-195, 272-276, 273, Manx Group 1 mineral deposits 18, 253 274, 275 acritarchs 28-29 mineralization 110, 243, 252 thickness 194 burial depth 302 mining 18, 75, 247 Wenlock 189 contact with Dalby Group 31 minor intrusions 18, 271,318 Niarbyl High-Strain Zone 279 correlation 73-80, 102 Moffat Shale 309, 310, 314, 315, inland 283 correlation with Ribband Group 320 protolith 282 341-342 Moniaive Shear Zone 317-318, Niarbyl Shear Zone correlation with 319 brittle fault 247 32, 65-66, 86, 89, 105, 147, Monograptusflemingii 178, 179, fabrics 62 285-286 181-183, 182 maps 278, 280 definition 50 Mount Karrin Lineament 83,249 sinistral shear 7, 248, 254 depositional regime 19 Mountsorrel Granodiorite 230 structures 278-282, 281 faults 239 mudstones tectonostratigraphy 4, 262 geological map 46, 90 manganiferous 125-127 thrusting 208 lithostratigraphy 24, 45-68, 47, red 149, 315 veining 194 76, 91-92 Mull Hill Formation 34, 53-55, 54, Niarbyl Slide 278 polyphase deformation 2 75, 77 Niarbyl Thrust 4, 48, 279 and Southern Uplands 310 facies 93, 99-101 end-Caledonian 285 structural character 262-272 lithological log 100 exposure 281 structures 86, 269 sandstone unit 89 Iapetus Suture 7 tectonics 253-255 Mulloch Bay Unit 206, 208 nodules 116, 118 thickness 83 muscovite normal faults 8 turbidites 89 metamorphic mineral 294-295 Glen Dhoo 83 Manx Imbricate Belt 239, 244-246, in quartz veins 18 Glen Helen 83, 84 253 mylonite 279, 337 North American Platform 66 Manx Slate Massif, sections 14, 15 Lineament 80, 252 Manx Slate Series 48, 50, 189 North China Platform 66 Manx synclinorium, section 14 Nantglyn Flags Group 185 North Craven Fault 230 Manx Synform 267 natural remanent magnetization 159, Belt 23, 41,326, 328 Marine Drive 77, 252 160 Norwegian Basin 86 marker horizon, coticule 109 nautiloids 178, 184-185 Ny Garvain Formation 55-56, 56 mass wasting, Avalonian margin 66 Navy fan 198 correlation 53, 74, 77, 83 mass-wastage deposits 136 Nb anomalies 173 geochemistry 143-145, 152 Maughold Banded Group 16, 17 Nd isotope studies 19, 148, 327-329 lithofacies 75, 93, 101 Maughold Formation 56, 57-59, 75, Nemerites 35 quartz arenites 84 79, 80 Nenagh magnetic anomaly 228 sandstones 89 correlation 145 Nereites 35 Maughold Head 49, 55, 92, 102, 111 Newfoundland 231, 313 copper mine 253 Ni 142 Maulin Formation 340, 341 Niarbyl Fault Zone 279-282 Oaklands Formation 340, 341 Menai Strait Fault System 235 Niarbyl Flags 122 Oatlands Intrusion 18, 253 Mercia Mudstone Group 7 acritarchs 31 obduction, Southern Uplands 313 metabentonite 192-193 correlation 12, 48 oceanic island arcs 150, 151 metamorphic grade 48 fauna 19, 64 olistostromes metamorphic minerals 290 Niarbyl Formation Buttermere Formation 65, 136, metamorphic sequences 292 age 205-206 327, 329 metamorphism analysis 147 emplacement 333 peak 303 in Dalby Group 4, 6 slump breccias 18 and structure 301 definition 190 Onchan Depression 233 temperature and pressure 301-302 foreland basin 316 Ooig Mooar 29 metasediments graptolites 104, 140, 177 ophiolites, Southern Uplands spotted 111 lithology 190-194 312-313 thin sections 293 location map 178, 191 Orlock Bridge Fault 317, 318, 319 metasomatism 17, 246, 332 logs 179, 198-201 Orthoceras 19, 185-186 MgO/SiO 2 plots 143 palaeocurrents 202-204, 203 orthocones 19, 184-185, 190 mica crystallinity analysis 17 photographs 192, 193 Orthodichgraptus 34 microprobe analysis, Poortown regional context 205-209, 207 fugacity 302 intrusion 170 relation to Birk Riggs Formation mid-crust 235 320 Midland Platform 136 sandstone petrography 204 Midland Valley, volcanism 315 sedimentology 195-202 packets 197 Midland Valley Terrane 308, 313, correlation 148-150 Palaeochorda spp. 14 314, 318 source direction 208-209 P. major 35 368 INDEX palaeocurrents magnetic survey 155, 220, 251 Redmain Formation 5, 147, 148, 152 Niarbyl Formation 202-204, 203 section 158 repichnia 40 Skiddaw Group 147, 328 Poortown Intrusive Complex 5, 6 reverse faults 4, 48, 251,254 149 Popelogan-Victoria arc 314 Reversing Fails Formation 326 palaeoflows porphyroblasts, distribution 303 reworking 85 directions 97, 101,102 Port Cornaa 55, 10l Rhabdinopora spp. 33 map 95 Port Erin Anticline 54, 89, 267 Rhobell Volcanic Group 313 turbidites 84, 93 Port Erin Fault 91,246 Ribband Group 2, 4, 8 palaeogeography, reconstruction 85 Port Erin Formation 53, 54, 77, 79, arenites 105 palaeolatitude 80 correlation 89, 147, 255, 337-343, Ordovician 160 facies 92, 99 339, 341-342 path 219 geochemistry 143-145, 152 coticule 110 Peel Sandstones 217-220 lithological log 100 depositional regime 19 palaeomagnetism sandstone unit 89 Dowery Hill Member 165 data 218, 223 pressure solution 263, 332 geochemical profile 342 fold tests 217, 218 principal component analysis 145 Gondwana margin 121 Peel Sandstones 213, 215-220 prod marks 202 ichnofauna 41 projections 216, 217, 222, 223 progradation 84, 197 lithofacies 86 reversal tests 217 Protichnites 35 nodules 117 sampling sites 214 protolith, fragmentation 134 stratigraphy 340 palaeontology 19 pseudogravity gradients 227,230 Riccarton Group 206, 316 Palaeophycus 35 ptygmatic folds 115 correlation 6, 147, 149 Paleodictyon 35 Purt Veg 52, 53, 77, 97 fauna 185 parallel lamination 57, 92, 101 fault zone 253 sandstone composition 150, 151 pascichnia 35 Purt Veg Channel 104, 143,204 ripple cross-lamination 57, 93, 96, passive margins pyrite 114, 115 101 Agneash sandstone 151 pyroxene chemistry, Poortown ripple trains 202 sandstone environments 150 Dolerite 170 River Neb 29 Skiddaw Group 86 pyroxene quadrilateral 171 Riverchapel Formation 339, 340 pebbly mudstones 104 pyrrhotite 230 Ross Formation 149, 150 Lady Port Formation 63, 123 Rosslare Terrane 228, 235,337 Maughold Formation 58 Slieau Managh Unit 79 quartz arenites Peel, acritarchs 29-31 analyses 141 St Bees Sandstone 220 Peel Basin 8, 231,250 Creg Agneash Formation 57 St John Group 326 Peel Harbour Fault 247 Keristal Member 95 sand supply, Gondwana margin 5, 8 Peel Sandstones 6, 89, 122, 214--215 Maughold Formation 58 sandstone chemistry 139 palaeolatitude 217-220 Mull Hill Formation 55, 99 Southern Uplands 315 palaeomagnetism 213, 215-220, Santon Formation 53 sandstone correlation 145 216 quartz sand, Keristal Member 52 sandstone dykes 196 Peel Volcanics quartz segregation 114 sandstone environments age 4, 32, 174, 313 quartz veins 18, 125, 194 discrimination diagrams 152 correlation 165 Quaternary 89 tectonic settings 150-152, 151 in Manx Group 50, 64, 328, 341 sandstone percentage, and bed pegmatites 18 thickness 72, 92 Penrith Sandstone 220 radiometric ages, Lake District 331 Santon Formation 4, 51, 74 periclines 267 Raeberry Castle Formation 206 acritarchs 24-27, 32 unconformity 7 ramp, see submarine ramp Arenig age 105 petrofacies analysis 204, 205 Ramsey 49 facies 93, 97-99 Phycodes spp. 38--40 Ramsey- Ridge 247, lithological log 98 phyllonite 195,248, 279, 282 254 lithostratigraphy 52-53 Pindos Basin 135 rare-earth element analyses 172, 316 petrofacies 204 Planolites 35 Rb, Hawick Group 149 Ribband Group equivalents 340 plate interactions 255 Rb--Sr dates sandstone unit 89 polar wander paths 221 Foxdale Granite 6 thickness 99 Polygonium spp. 27 Skiddaw Group 316, 330, 332 Santon Head 12 Pontesford Lineament 230 Windermere Supergroup 319 Schistose Breccia 14, 18, 48, 124 Poortown Dolerite 18 Rb/TiO 2 plots 144 schistosity 114 analyses 168, 169 rebrecciation 125 scouring, see erosional scouring composition 167-168 recrystallization, contact sea-level changes extent 159 metamorphism 74 Arenig 105 lineament 253 recumbent folds 267 systems tracts 84 location map 155 recycled orogen sources 204, 205 sea-level curve 66 magnetic profiles 162 red beds 213, 285 seafloor topography 202 INDEX 369

Seamount Formation 340 deformation 7 Tetragraptus spp. 34 sediment source, Manx Basin 19 flow vector 204 T. phyllograptoides 23 sedimentary prism 89 geological model 309-311 Th-Hf-Ta diagram 173 sedimentation rates 83 lithological successions 312 Th/Yb plot 174 sediments, disruption 133-135 map 308 thermal aureoles 296-299 seismic profiles 234-235,246, 249 sections 311 thermal subsidence 86 seismic reflectors 247, 248 structure 3 l 0, 316-318 thermohaline currents 202 semi-pelites, sections 298 tracts 4, 151 thinning-upwards sequences 97 sequence stratigraphy 84-85 Southern Uplands Terrane 307, 314, Thistle Head Quarry 202 sequences, fragmentation 133-135 318 tholeiite 313, 314 serpentinites 313, 341 Spanish Head Syncline 266 thrust duplex 129 Shag Rock Fault 91,247,254 spessartine-almandine garnet 290 thrust faults Shap Granite 218, 330, 332 sphalerite 253 brittle 276, 282 shear zones Sr 142 Niarbyl 12, 194, 195 ductile 195 statistical analysis 145 Peel Sandstones 214 Lady Port Formation 125 Stellechinatum sicaforme 31 regional 285 Lag ny Keeilley 60, 79, 112, 208, Stelliferidium pseudoornatum 23, Skiddaw Group 330, 331 247, 276-278, 277 24 Southern Uplands 151,318 Lynague 248, 254 S. trifidum 23, 27, 31 Traie Follan 57 Moniaive 317-318 Stockdale Group 148, 315 thucolite 18 Niarbyl 7, 49, 62, 194, 208, Stockdale Rhyolite 331 TiO2/SiO2 plots 142, 150 247-248, 254, 262 strain measurements 179 tool marks 183, 184 Poortown 167 strain partitioning 277,283, 284 Tornquist Sea, subduction 230 sheath folds 267 stratification, ghost 135 tourmaline 295-296 Sherwood Sandstone 7 stress, deviatoric 135 in metamorphic axis 17, 110 sill intrusion, Poortown 156 Striatotheca spp. 31 metasomatic 247 silt-carbon couplets 192, 199, 200 S. principalis 29, 31 vein 18 Sit 2, Skiddaw Group 148 S. rariruggulata 24, 29 tourmalinite 111-115, 114, 340 Skerries Formation 206 strike faults 17 trace element analyses 142, 149 Skiddaw Granite 218, 284, 330, strike-slip faults 255, 277 trace fossils 19, 35-42, 93 332 structural models 82 tract boundaries 4 Skiddaw Group 2, 4, 8, 325-336 structure faulted 58, 91,261-262, 310, acritarchs 23 Lower Palaeozoic 259 319 Avalonian margin 313,325 regional 283-285 tract structures 283,289 basal thrust 316 subduction tractional currents 85 correlation with Manx Group 32, Avalonia 174 tracts 49 65-66, 86, 89, 105, 147, Iapetus Ocean 308, 314, 330 correlation 102, 145-147,146 285-286 Tornquist Sea 230 tectonostratigraphical 140 debrites 136 subduction polarity 313 Traie Dullish Quarry 171,190, 192, depositional regime 19 submarine fans 84, 198, 208 196 distribution 325, 326 submarine ramp 102, 104 log 201 ichnofauna 41 submarine slides 48 transfer fault 214 palaeocurrents 147 successor basin sequence 206, 208 transgressive systems tracts 84 passive margin 86 Sulby Flags 14, 15, 17, 64 transpression 254, 315 stratigraphy 327 Sulby Slump Breccias 15, 17, 64, Tremadoc, graptolite dating 16 Skiddaw Slates 33, 47 124, 135 Tremadoc-Arenig boundary 23, slickensides 158, 167, 316 suprasubduction 328 26-27 Slieau Curn 27 syncline model 48 trilobites 34 Slieau Managh Unit 75, 83 synclinorium 14, 15, 48, 209, 272 triple junction 325 Slieugh Managh Slates 15, 48, 64 systems tracts 84 Tullow Pluton 341 Slieve Glah Shear Zone 318 turbidite fans 4 slope apron deposits 208 turbidites slump breccias 18 Tam Moor Formation 150, 327, bioturbated 128-129 slump folds 328, 333 328 facies 195-202, 196 Smith, William 11 tectonic episodes 17 frequencies 202 Laminated Slates 14 tectonic settings logs 128 253 Poortown complex 165 Lonan Formation 50 sole structures 197 sandstone environments 150-152, Manx Group 89 Solway Basin 7,231 151 Mull Hill Formation 54 Southern Upland Fault 313, 314 tectonics, Manx Group 253-255 quartzose 128 Southern Uplands tectonism, Arenig 83 Santon Formation 52 accretionary prism model 310 tectonostratigraphy 49 stacked 102 cleavage 283,284 325 turbulent flow deposits 93, 96 correlation 6, 147, 149 Tetagouche Group 117 Tywi Lineament 230 370 INDEX

U-Pb dates, Skiddaw Group 330 Wallberry Hill 24, 27 foreland basin 319, 316, 333 units, equivalence 49 Formation 27, 86, 105, transgression 315 uranium minerals 18 147, 327 Windy Comer Fault 49, 91, 271, Watch Hill Thrust 330 283, 297 way-up evidence 48, 49 worm trails 19 Variscan Orogeny 223 Weardale Granite 232 Wray Castle Formation 208 faulting 254 Welsh Basin 2, 86 vein minerals 17, 243 back-arc volcanism 137 veining 114, 194, 267 folds 283 xenoliths, Oatlands 18 Veryhachium spp. 27 Welsh Borderland Fault System 230, Xiphograptus 34 Virginia magnetic anomaly 228 236 XRF analyses 140 viscous remanent magnetization 159 Westmoreland Monocline 285 Vogtlandia coalita 31 Wexford Boundary Line 228 volcanic material, in sandstones 150 white mica 291 Y, Hawick Group 149 volcanism Wicklow Fault Zone 337 Volcanic Formation 331 Midland Valley 315 WINCH-2 profile 234 subduction-related 165, 173 Windermere Supergroup Welsh Basin 137 correlation 6, 147, 148 Zr, Hawick Group 149 Vulcanisphaera 31 detachment 219 Zr/Y plot 174