Index

Page numbers in italics refer to Figures and page Cape Wrath 33, 36, 38, 41, 44, 54 Bay of Stoer 59, 64 numbers in bold refer to Tables Diabaig 100-101 Bay of Stoer Formation Enard Bay 73 facies 8-9, 64 68 Abhainn Bad a' ChrStha 94 94-95 geochemistry 16, 17 Abhainn Br/tigh-Horrisdale 95 102 graphic logs 9, 56, 92 accretionary lapilli 9-10, 65, 66, 72 75 mineralogy 16 Achduart 33, 76 Quinag 56 palaeoclimate 18-19 Achduart Member 33, 75, 78, 79, 80, 84 108 palaeocurrents 6, 7, 20, 59, 64, 66, 68, Acheninver Lodge 77 Rubha M6r 87 88 palaeomagnetism 18 Achiltibuie 6, 9, 13, 30, 33, 53, 71, 73 Rubha Stoer 56 pebbles 16, 56 Achiltibuie sub-area 76 78 of Skye 112-113 regional outcrops Achmore 81 Soay 114-115 Bac an Leth-choin 92 A'Clach Thuill 57, 61, 64 Stoer 70 Gruinard Bay 86-87 acritarchs see microfossils , Loch 103-104 Poolewe 90-92 aeolian sands 9, 63, 76 source 40-42 Stattic Point 84-85 ages stratigraphy 29, 30 Stoer 64-68 basement 12, 21 sub-area 104-106 source 16 detrital 41-42 4~ ages 41 stratigraphy 5 6 Sleat Group 27-28 Archaean basement Beinn Bhreac 95, 111 Stoer Group 21-22 geochemistry 12-13 Beinn Bhreac Member 113, 114 41-42, 45-46 mineralogy 13 Beinn Dearg, Loch 88 Aird Mhor 104 Ard Ban 105 Beinn na Seamraig Formation albitization Ardheslaig 96 facies 24 Sleat Group 26-27 Arnish, Loch 106, 108 geochemistry 25 Stoer Group 17-18, 47 31, 62 graphic log 111 Torridon Group 36-37, 47 Assynt, Loch 56 mineralogy 24 Alligin 32, 103 atmospheric composition 31-32 outcrops 110-111 Alligin sub-area 101-102 Aultbea 30, 34, 38, 39, 75 palaeocurrents 24 Allt a' Choin 111 Aultbea Formation Beinn Shieldaig 104 Allt an Teanga Odhair 109, 100 age 45 Ben Dreavie sub-area 54 Allt Coire Gasgain 109 facies 29, 34, 88 Big Sand fishing station 39, 95 Allt Eilean 108 geochemistry 38, 39 Blackrock 117 Allt Loch na Doire MSire 96 graphic logs 76, 89, 105 Blackrock Formation 117 Allt MSr 94 mineralogy 38, 39 boron Allt MSr na h-Uamh 115 palaeocurrents 34 in illite 10, 12, 32, 67, 68, 100 Allt MSr na h-Uamh Member 113, 115 palaeomagnetism 105-106 in Holocene stream sediment 42, 45 Allt Reireag 108 regional outcrops Bowmore Group 117 Allt Rubha na Moine 115 Applecross 105-106 Bowmore sub-area 116-117 Allt na B6iste Member 93, 94, 95, 99, 100, 102, Aultbea 88 braids 103, 107-108 109 Applecross Formation 34 alluvial fans Rum 115 Kinloch Formation 24 unconfined 8-9, 32-33 75-76 Br/tigh-Horrisdale, Loch 95 valley-confined 6-8, 32 source 34, 36 breccia A'Mhaighdean 32 stratigraphy 29, 30 Sleat Group 23 an Achaidh, Loch 56 Aultbea sub-area 87-89 Torridon Group 32, 35-36 an Doire Dhuibh, Loch 74, 75 azurite 56 breccio-conglomerate An Dubh Laimhrig 113, 114 Stoer Group 6-7, 12-13, 57, 63, 89 an Eich Dhuibh, Loch 32 Bac an Leth-choin 6 Brochel Castle 107, 108 An Grianan, 53 Bac an Leth-choin sub-area 92 Brochel Member 106, 107, 108 An Socach 53 Bad a' Ghaill 74, 75 Broom, Loch 33, 81 An Teallach 30 Bad a' Ghaill, Loch 33 burial history 47-49 An Torr 98, 112 Badachro 94, 95 An Uaile 63 Badenscallie 77 Cailleach Head 6, 30, 35, 39, 82, 83 An Uaile conglomerate 56, 63 Badentarbat 30, 75 Cailleach Head Formation an Uachdair, Loch 108 Badluchrach 86 cyclothems 34-35 Annat Bay 81, 104 bajadas facies 35, 79-81 Applecross 30, 39 Stoer Group 8-9 geochemistry 36, 39 Applecross Formation Torridon Group 33 34 graphic logs 82, 83 facies 32-34, 54 Balchladich Bay 56 stratigraphy 29-30 geochemistry 25, 38, 39, 75 Balgy River 102, 104 Cailleach Head sub-area 78-81 graphic logs 54, 55, 80, 95, 103, 106, 112, 114 Baosbheinn 95 calcite pseudomorphs 67 mineralogy 20, 38, 39 basement Cam Loch 73 palaeoclimate 43 age 12, 21 Camas a' Chlarsair 103 palaeocurrents 33, 53, 54, 56, 71, 75, 78, 80, geochemistry 11-12, 36 Camas Fhionnairidh 113 81, 84, 88, 95, 100, 104, 105, 106, 108, mineralogy 12, 36, 37 Camas MSr 93 112, 113 relief 5, 23, 29-31, 73, 74, 76, 84, 86, 94, 96, 102, Camas na h-Airigh 95 palaeomagnetism 113 107, 115 Camas na h-Atha 115 pebbles 40-42 weathering 5, 17-18, 19, 30-31, 53, 71, 74 Camas na Nighinn 104 regional outcrops basin analysis Camas na Ruthaig 79 Achiltibuie 76, 78 Sleat Group 27 Camusunary 30 Applecross 104-105 Stoer Group 19-20, 47 Camusunary fault 113 Cailleach Head 79 Torridon Group 43-45, 47, 49 Camusunary sub-area 113 128 INDEX

Canapress 101, 102 cyanobacterial mats 9 Fearnmore 105 Canisp 31, 62, 73 cycles 9 Fbith an Fhe6ir 81 Canna sub-area 116 cyclothems 34-35, 80, 82, 83 fence diagrams Caolas Fladday Member 108 Sleat Group 26 Cape Wrath 29, 30, 31, 33, 36, 37, 38, 43, 41, 44, 54 desiccation cracks 8, 9, 11, 23, 32, 58, 59, 63, 65, Torridon Group 39 Cape Wrath Member 68, 69, 71, 87, 93, 100, 102, 107, 115 Fernaig 109 facies, 54 Diabaig 32, 36, 37, 39, 107 Fiachanis Sandstone Member 113, 114-115 geochemistry 36, 39, 55 Diabaig Formation Fladday 106-108 mineralogy 38 facies 32, 98-100, 107, 115 formation defined 2 palaeocurrents 33, 54, 56 geochemistry 39 fossils see microfossils Cape Wrath sub-area 53-54 graphic logs 55, 92, 93, 94, 97, 98, 99, 100, 106, francolite 32 carbonate nodules 12, 69 107, 113 Fuar Loch More 32 carbonate sheets 8 58, 59, 61 mineralogy 35-36, 37 Carn Breac 105 palaeoclimate 43 Gairloch 30, 38, 41, 62 Carn Dearg 78, 95, 105 palaeocurrents 32, 56, 73, 77, 97, 100, 102, 108, Gairloch, Loch 95 Carn Dearg Ailean 85, 86 115 Gairloch sub-area 93-96 Carn Dearg na h-Uamha 85 regional outcrops Gaineamhach, Loch 95 Carton, Loch 104, 109 Achiltibuie 76-78 Gainmheich, Loch 74 Ceann a' Ch~rnaich, Loch 92 Camusunary 113 Garbh Choire 95 chalcocite nodules 64 Diabaig 96-101 Garvie River fault 73 chemical index of alteration (CIA) Enard Bay 73 geochemistry Sleat Group 27 Fladday 108 Sleat Group 24-27 Stoer Group 15-16 Gairloch 94 Stoer Group 1~18 Torridon Group 38-39 Inverpolly 74-75 Torridon Group 35-39 chert pebbles 41, 87, 100, 108, 115 Raasay 106-108 Geological Survey mapping 3 Clachtoll 8, 12, 19, 20, 57 60, 60-63, 64, 65 Rubha R6idh 93 Ghiuragarstidh, Loch 89, 90, 91 Clachtoll, Bay of 59, 60, 64 Rum 114 glaciation 2, 18 19, 59 Clachtoll fault 62 Quinag 55 Glame Member 107, 108 Clachtoll Formation Scoraig 81 Glas Eilean 108 contemporary faults 19, 64 Stattic Point 86 Glas-leac Beag 76 facies 6-8, 57 60 Stoer 70 Glen Arroch 111 geochemistry 12-16 Torridon, Loch 101 grain size defined 2 graphic logs 56, 59, 60, 92 Veyatie, Loch 73 Grenville orogeny 1, 22, 44, 47, 48, 50 mineralogy 6, 13, 14 source 32, 35-36 Griana-sgeir 108 palaeocurrents 5, 6, 7, 20, 59, 89 sodium metasomatism 36 group defined 2 regional outcrops stratigraphy 29, 30 Gruinard Bay 6, 7, 8, 59 Achiltibuie 76 Diabaig sub-area 96-101 Gruinard Bay sub-area 86-87 Bac an Leth-choin 92 diamictite 19, 59 80 Cailleach Head 79 Doire Dhuibh 75 Guirdil Bay 115 Clachtoll 57 60 Doire na h-Airbhe 75 gypsum 11, 59, 67, 69, 87 Clashnessie 63 Dornie 75, 76 Enard Bay 71-72 Droman 53 Handa 30, 41 Gruinard Bay 86 dropstones 19, 72 Handa sub-area 54 Poolewe 89-90 Dubh Lochan 72 Hawkes Bank 116 Port Cam 63-64 Dundonnell 29, 30, 84 Heast 112 Stattic Point 84 dykes, sandstone 19-20, 56, 60-63, 86, 95-96, 97 hematite source 12-16 Stoer Group, 19-20, 64 stratigraphy 5, 6, 7 116 Torridon Group 42-43, 108, 112 Clashnessie 57, 63 Eilean Beag 105 history of research 2-3 Cluas Deas 56 Eilean Dubh 76 Horse Island 8, 59, 76 Cnoc Badan na h'Earbarge 87 Eilean Mullagrach 75 Horse Sound 53 Cnoc Breac 68 Eishort, Loch 111, 112 hydroclastic eruption 9-10 Cnoc Sgoraig 78, 81 Elphin 75 36, 38, 41, 55, 75 Enard Bay 5, 6, 9, 10, 19, 32, 70, 76 illite 10, 31, 32, 37, 47, 49, 67, 68, 100 Coigach fault 5, 56, 71, 75, 78, 79, 80, 84, 86, 87 Enard Bay facies 73 Innis nan Gobhar 87 Coire Doire na Seilg 113 Enard Bay sub-area 71-73 Inveralligin 102 Coire Liath Mh6r 102 environment of deposition Inverewe 92 Coire na Bfi 105 Sleat Group 23-24 Inverianvie River 87 Group 116 Stoer Group 6-9 Inverpolly Forest 31, 32, 53 colour defined 2 Torridon Group 32-34, 36 Inverpoly Forest sub-area 74-75 Conophyton 67, 68 epidote Group 116 copper mineralization 56, 68, 106, 108 Iona Group 116 Iona sub-area 116 Creag a' Chadha 84 Sleat Group 109 Isle Ristol 30 Creag an Eilean 88 Stoer Group 13, 60, 71, 92 Isle Ristol sub-area 75-76 Creag an Fhithich M6r 88 Torridon Group 36, 42, 47, 49, 106 Creag Ghorm 104, 105, 106 Epidotic Grit and Conglomerate 109 jasper pebbles 41, 92, 94, 95, 102, 105, 108, 112 Creag na h-Iolaire 115 Creag Strollamus 108 facies K/Ar ages 1, 3, 21, 42 Creagan M6r 73 defined 2 K/Rb ratio 104, 105-106 Sleat Group 23-24 basement 11, 12 cryptarchs see microfossils Stoer Group 6-9 Sleat Group 24, 25, 26 Cuaig 105 Torridon Group 32-34 Stoer Group 13-15 Culduie 105 fan delta 23 Torridon Group 38 Cfll M6r 30, 32, 75 Fasag fault 30, 102 Kernsary, Loch 90, 92 Culkein, Bay of 56, 57, 70, 71 Feadan M6r 92 Keweenawan apparent polar wander track 48, 49 INDEX 129

Kinloch 111, 112 Meall Dearg Formation Stoer Group 20 Kinloch Formation facies 8-9, 68-69 Torridon Group 34, 44, 47 facies 24 geochemistry 16-17, 18 palaeodrainage 5, 7 geochemistry 25, 26 graphic logs 56, 58 palaeogeography graphic log 111 mineralogy 16-17 Stoer Group 49, 50 mineralogy 24 palaeocurrents 6, 20, 70, 72, 93 Torridon Group 50 outcrop 111-112 regional outcrops palaeomagnetism palaeocurrents 24 Enard Bay 72 Applecross Formation 102, 113, 115 Kinlochbervie 53 Rubha R~idh 93 Aultbea Formation 88-89, 105 Kishorn, Loch 104 Stoer 68 70 Laurentia 49 51 Kishorn nappe 23, 27, 117 source 16 Stoer Group 18, 48, 49 K20-Na20 plot 12 stratigraphy 6, 56-57 Torridon Group 42-43, 48, 49 23 Meall Dubh 56 palaeosols 31, 43, 53 Kylesku Ferry 55 Mellon Udrigle 88 palaeotopography see basement relief member defined 2 Pb/Pb ages metamorphism, basement 12 Stoer Group 21 La/Th ratio 13, 40 microcline pebbles 41 Torridon Group 45 lacustrine deposits see lake deposits microfossils pedoturbation 8 Laggan Formation 117 Sleat Group 110 persistency defined 2 Laimhrig Shale Member 113, 115 Stoer Group I 1, 67 lake deposits phosphatic concretions 32, 75, 77, 80-81, 94, Torridon Group 3, 32, 34, 94, 99, 107 98-99, 103, 110, 113 Aultbea Formation 34 Miller, Hugh 2 plate tectonic setting 49-51 Cailleach Head Formation 35 Minch fault 1, 20, 44 Poll a' Mhuilt Member Diabaig Formation 32 mineralogy facies 10, 11, 66-68 Polt a' Mhuilt Member 10-11, 66-68 basement 12, 36, 37 geochemistry 14 Rubha Guail Formation 23 Sleat Group 24, 25 graphic logs 10, 56, 68 lapilli 9, 10, 15, 16, 65, 66, 72 Stoer Group 14, 17 palaeocurrents 68 lateral persistency defined 2 Torridon Group 35, 37, 38, 39 regional outcrops Laxfordian orogeny 12, 104 Moine thrust 1, 3, 23, 29, 31, 44, 45 Enard Bay 72 Leac an Ime 84, 85, 86 mud drapes 9 Stattic Point 84 Leac Faoileann Member 113, 114 mudflow 10 Stoer 66-68 Leac nam Faoileann 114 Mullach an Rathain 102 stratigraphy 5, 6 Leac Stearnan Member 113, 114 Poll a' Mhurain 53 Lewisian basement see basement na Dal, Loch 23, 110 Liathach 102, 103 Poolewe 5, 6, 7, 8, 18 na F6ithe Dirch, Loch 92 Poolewe sub-area 89-92 limestone na F~ithe Mugaig, Loch 96 Port Aslaig 109 Clachtoll Formation 58, 59 NazO-K20 plot 12 Port Cam 59, 60, 63 Poll a' Mhuilt Member 11, 67, 68 na Sealga, Loch 84 Linneraineach 75 Port Feadaig 64, 70 na Seanna-chreig, Loch 71 potassium metasomatism liquefaction, Torridon Group 34, 96 Nicol, James 2 lithostratigraphy 2 Stoer Group 15-16 Torridon Group 37-38 Little Gruinard 86 Ob a' Bhrighe 102 Little 33, 81 pumpellyite 19, 47, 49, 55, 60, 61, 71, 73 Ob Chuaig 105 Little Loch Broom fault 85 pyrite cubes 100 Ob Gauscavaig 112, l 13 Loch an Uachdair Member 107, 108 Ob Gorm Beag 102, 104 quartzite pebbles Loch Gruinard fault 117 Ob Gorm M6r 102, 104 Bowmore Group 117 Loch Maree fault 92 Ob Mheallaidh 102, 104 Iona Group 116 Loch na Dal Formation Ob na Glaic Ruaidh 104 facies 23 Sleat Group 26, 109 Opinan 88 geochemistry 25, 26 Stoer Group 16, 59, 64, 72, 79, 84, 85, 86, 87, 90, graphic logs 110 92 palaeoclimate mineralogy 24, 25 Torridon Group 40-41, 73, 74, 75, 81, 86, 87, Sleat Group 27 outcrops 109-110 94, 95, 102, 105, 108, 112, 114, 115 Stoer Group 18-19, 49 Quinag 30, 31, 32, 36, 38, 53 palaeocurrents 24 Torridon Group 43, 49 Quinag sub-area 55 56 Loch Skerrols thrust 117 palaeocurrents Loch Veyatie sub-area 73 Achduart Member 78, 84 Lochan Bad an Scalaig 96 Raasay 27, 30, 32, 38, 41 Applecross Formation 33, 53, 54, 56, 71, 75, 78, Lochan Fada 73 Raasay sub-area 106-108 80, 81, 84, 88, 95, 100, 104, 105, 106, 108, Raffin 56 Lochan nam Breac 94 112, 113 Lochan Sgeireach 95 rare earth elements (REE) 15, 40 Bay of Stoer Formation 6, 7, 20, 64, 66, 68, 90 Longay 105, 108-109 Rayleigh-Taylor instability 34 Beinn Bhreac Member 114 Losguinn, Loch 89 Rb partitioning 13 Beinn na Seamraig Formation 24, 111 Rb in feldspar 36, 75 Lower Fladday Member 108 Cape Wrath Member 33, 54, 56 Rb/Sr ages Lurgainn, Loch 53, 74, 75 Clachtoll Formation 6, 7, 20, 59, 89 basement 21 Diabaig Formation 32, 56, 73, 77, 97, 100, 102, Stoer Group 21 Maree, Loch 30, 89 108, 115 Torridon Group 36, 42, 45 maar volcanoes 11, 21 Kinloch Formation 24, 111 Read, H. H. 3 MacCulloch, John 2 Leac Stearnan Member 113 Red Point 95 magnetite Loch na Dal Formation 24, 110 Reiff 53, 75 Stoer Group 18, 20 Meall Dearg Formation 6, 20, 70, 72, 93 research history 2-3 Torridon Group 42-43, 112 Rubha Dubh Ard Member 75 Rhiconich 53 malachite 108 Rubha Guail Formation 24, 109 Rhum see Rum martite 18, 42-43, 93 Scresort Sandstone Member 115 Rienachait 62, 63 Meall an Tuim Bhuidhe 95 Sgorr Mh6r Sandstone Member 115 Rienachait conglomerate 56, 62, 63 Meall Aundry 96 Sleat Group 24 rift basin evidence 20-21, 44, 47 130 INDEX

Roag, Loch 96, 97 geochemistry 24-27 tectonic setting roches moutonn6es 18 mineralogy 24-25, 113 Sleat Group 27 roundness defined 2 outcrop 109-113 Stoer Group 19 21, 47 Ruadh Mheallan 100 palaeoclimate 27 Torridon Group 43-45, 47, 49 Rubh' a' Choin 70, 71, 73 palaeocurrents 24 tephra 11, 15-16 Rubh' an Dunain 56 palaeomagnetism 27 Th in Stoer Group 13-14 Rubh' an t-Sfiile 117 source 25-26 Th/Sc ratio 40 Rubh' Aonghais 114 stratigraphy 23, 24 thermal history 47-49 Rubha a' Chonnaidh 108 Sleat of Skye sub-area 109-113 tillite 59 Rubha an Inbhire 108 slump structures 64, 66-67, 85 86, 96-97 Tornapress 104, 105 Rubha Ard Treshnish 112 smectite 8, 31 Torran Member 106 Rubha Beag 70, 72 Soay 30 Torridon 30, 38, 41, 53, 102 Rubha Dubh Ard 77, 78 Soay sub-area 113-114 Torridon, Loch 96 Rubha Dubh Ard Member 33, 73, 74, 75, 78, 80 sodium metasomatism see albitization Torridon Group Rubha Dunan 72, 76, 77 source rocks 17, 26, 39-42 age 45-46 Rubha Guail 109 Spidean C6inich 55, 56 facies 32-35 Rubha Guail Formation Stac Cas a' Bhruic 86 geochemistry 35 39 facies 23 Stac Fada 65, 66, 67 mineralogy 36-39 geochemistry 25, 26 Stac Fada Member palaeoclimate 43 graphic log 109 accretionary lapilli 9-10, 65, 66, 72 palaeocurrents 32-35 mineralogy 24, 25 facies 9 11 palaeomagnetism 42-43, 48, 49 outcrop 109 geochemistry 16, 18 source rocks 39 42 palaeocurrents 24 graphic logs 10, 56 stratigraphy 29, 30, 106, 113 source 25 26 mineralogy 9 tectonic setting 43-45 Rubha Lag na Saille 73 regional outcrops Toscaig 30, 34, 104, 105, 112 Rubha Leumair 61 Achiltibuie 76 Toscaig fault 105, 106 Rubha Mdr 87-89 Bac an Leth-choin 92 total organic carbon (TOC) 67 Rubha na Roinne 115 Cailleach Head 79 tourmaline 40, 41, 42, 45 Rubha R6idh 6, 65, 92, 95 Enard Bay 72 Tournaig 92 Rubha R6idh sub-area 93 Gruinard Bay 87 Rubha Reireag 108 Poolewe 92 U in Stoer Group 13 Rubha Stoer 30 Stattic Point 84 U/Pb age see zircon ages Rubha Stoer sub-area 56 57 Stoer 65-66 Uamh an Oir 85 Rudha Beag sandstone 71, 72, 73 slumping 9-10, 66 67 Uisguintuie 117 Rum 27, 30, 38 stratigraphy 5, 6, 7 unconfined alluvial fans 32-33 Rum sub-area 114 115 Stac Gruinn 65 unconfined bajadas Stac Polly 53, 74 Stoer Group 8-9 Sfiil Beag 33, 53, 84 Stattic Point 6, 79 Toridon Group 33 34 Sfiil Mh6r 53 Stattic Point sub-area 84 86 Upper Fladday Member 108 silt-mud rhythmite 32, 98, 110, 115 Steall a' Mhunain 66 Upper sub-area 102-104 Scalpay 30 Stoer 6, 9, 10, l 1-12, 14, 15, 41 Scalpay sub-area 108 109 Stoer, Bay of 57, 59, 60, 68 valley-confined alluvial fans Scoraig 30, 33 Stoer Group Stoer Group 6-8 Scoraig sub-area 81-84 age 21 Torridon Group 32 Scourie dykes 12, 13, 20, 36, 74 burial history 47 49 valley-confined lakes 32 Scresort, Loch 115 facies 6-9 valley-confined rivers Scresort Sandstone Member 113, 115 geochemistry 11-18 Stoer Group 8 108 mineralogy 14, 16 Torridon Group 32, 73 Sgeir Gormul 112 palaeoclimate 18 19 valley-confined swamps 8 Sgorr a' Chadail 101 palaeocurents 20 veins, dilatational 19-20, 61, 62-63, 86, 95-96, 97 Sgorr Mh6r Sandstone Member 113, 115 palaeomagnetism 18, 48, 49 vertisol 8 Sgurr na Bana Mhoraire 104 source 13-16, 17 Veyatie, Loch 30, 73, 74, 75 Sgurr of Eigg 116 stratigraphy 5, 6, 7 Victoria Falls 95 shale defined 2 tectonic setting 19-21, 47, 49, 50 Victoria, Lake 5 Sheigra 53 type area 57-70 Shieldaig 30, 102, 105 Stoer sub-area 57-70 weathering of basement 5, 17, 18-19, 20, 30-31, Shieldaig, Loch 102 Strath 95 53, 71, 74 Shieldaig Lodge 94 Strath Kanaird 30, 78 Sionascaig, Loch 74 Suilven 73 Y in apatite 55, 75 Skiag Bridge 55 Summer Isles 75 Skye 27, 38, 109-113 swamp deposits 8 Sleat Group zircon ages age 27-28 Talladale, River 95 Stoer Group 16, 21 facies 23-24 Tanera Beg 75, 76 Torridon Group 41, 42, 45

PLATE CAPTIONS

Plate 1. The Torridonian outcrop in NW , showing component groups and formations.

Plate 2. The Torridonian outcrop in NW Scotland showing the sub-areas described in the Directory, together with the locations of figured maps and sections.