Legend (Bedrock/Bedrock_Geology_100K_IE26_ITM)

Structural Symbols 100K ITM 2018 (0) Dip of bedding or main foliation, old GSI data First foliation parallel to bedding Foliation trend, Thorr and Rosses Granites Horizontal Bedding Strike and dip of bedding, right way up Strike and dip of bedding, way up unknown Strike and dip of first foliation Strike and dip of overturned bedding Strike and dip of second foliation Strike and dip of third foliation Strike and plunge of first generation fold axis Strike and plunge of second generation fold axis Strike and plunge of third generation fold axis Strike of vertical bedding/foliation Strike of vertical first foliation <all other values> Bedrock Outcrops 100 ITM 2018 (1) Bedrock Linework 100k ITM 2018 (2) Anticlinal Axis Antiformal axis Aquifer Boundary Area Coal seam Dyke Fault Ghost Line Goniatite marine band (R1-R4) Lithological boundary offshore Metadolerite sheet, mainly sills Paleogene/ Tertiary Dyke Synclinal Axis Synformal axis Tectonic Slide, barbs on hanging-wall Thin stratigraphical unit, diagrammatic Thrust, barbs on hanging-wall side Tuff band Unconformity, dots on younger side X-Section Bedrock Polygons 100k ITM 2018 (3) Kilmore Formation Achill Head Formation Addergoole River Formation Aghyaran & Killygordon Limestone Fo Lifford Volcanic Member Marble unit Aghaward Formation Aghamore Formation Altan Limestone Formation Old Road Member Annagh Division (undifferentiated) Ards Pelite Formation Ards Quartzite Formation Ardvarney Formation Arva Granodiorite Balbriggan Formation Bangor/Corslieve Formation Carrafull Member Owenmore Member Ballycong Limestone Formation Belcamp Formation Belderg Formation Bellagarvaun Formation Benmore Formation\ Broad Haven Form Benmore Formation Ballybeg Park Limestone Formation Boultypatrick (Grit) Formation Briska Boulder Bed Formation Bangor Church Banded Member Bangor Reservoir Dolomitic Schist M Broad Haven Formation Broomfield Formation Brittstown Formation Ballyhean Formation Bryanstown Formation Derravaragh Cherts Liscarton Formation Meath Formation Stackallan Member Moathill Formation Ardenagh Formation BALLYCOGLY GROUP Blackhall Formation Booley Bay Formation Bray Head Formation in Bray Head Formation Bray Group Cahore House Formation Cahore Point Formation Cullentra Formation Cross Lake Formation Cullenstown Formation Devils Glen Formation in Devils Glen Formation Drumleck Formation Elsinore Formation Glascarrig Formation Gaskins Leap Formation Hippy Hole Formation Kiln Bay Formation Newtown Formation Polldarrig Formation Ballynacarrig Member Pipers Gut Formation Carnes Formation Roney Formation Carrysalia Formation Shelmaliere Formation Ardnasillagh Formation Aghmacart Formation Aughnanure Oolite Formation Aille Limestone Formation Aille and Barney Fms (undifferentia Westport Oolite Allenwood Formation Armagh Group Athassel Limestone Formation Basal clastics Ballyadams Formation in Ballyadams Formation Ballysteen Formation Bullockpark Bay Member in Bullockpark Bay Member Lisduff Oolite Member Ballynash Member in Ballysteen Formation in Ballysteen Formation Ballina Limestone Formation (Lower) Ballina Limestone Formation (Upper) Banagher Sandstone Formation Basal Beds Ballycar Formation Doobally Sandstone Bellavally Shale Formation Benbulben Shale Formation Ballyglasheen Oolite Formation Ballymore Limestone Formation Ballymartin Formation Borrisokane Formation Boston Hill Formation Boyne Formation Ardmulchan Member Beauparc Member Kiln Hill Member Bricklieve Limestone Formation Bricklieve Limestone Formation (lower) in Bricklieve Limestone Formation Bricklieve Limestone Formation (upper) Barney Limestone Formation Bohoge Member Kinturk Member Ballyshannon Limestone Formation Argillaceous limestones & calc. sha Basal sandstones Abbeytown Limestone Newtownbutler Limestone Member Red Hill Member Bundoran Shale Formation Mullynagowan Sandstone Member Burren Formation Aillwee Member Aillwee member (lower) Aillwee Member (upper) Aillwee & Maumcaha Members Ballard Member Black Head Member Fanore Member Hawkhill Member Maumcaha Member Butlersgrove Formation in Butlersgrove Formation Ballynahone Micrite Formation Boyle Sandstone Formation Ballyness Formation Ballyreagh Conglomerate Formation Caherduggan Limestone Formation Camillan Sandstone Formation Capnagower Formation Carraun Shale Formation Doagh Limestone Member Castlebar River Fm. / Lough Akeel F Cong Canal Formation Cong Limestone Formation Carrickaness Sandstone Formation Claragh Sandstone Formation Cooldaragh Formation Cloghan Sandstone Formation Clonlusk Formation Cloonagh Limestone Formation Cracoean Reef Member Clogrenan Formation Kilmore Slump Member Clashavodig Formation Clogher Valley Formation Copstown Limestone Formation Courtmacsherry Formation Cork Red Marble Formation Cregg Limestone Formation Coranellistrum Formation Croane Formation Croghan Limestone Formation Crosspatrick Formation Crows Point Formation Crufty Formation Cruicetown Group (undifferentiated) Culmore Formation Dartry Limestone Formation Ballagh Limestone Member Knockmore Reef, bedded facies Knockmore Limestone Member Legacurry Member Carn Limestone Member Carrickmacsparrow Limestone Member in Dartry Limestone Formation in Dartry Limestone Formation Drumchorick Siltstone Formation Dinantian Limestones (undifferentia Drumgesh Shale Formation Drumman More Sandstone Formation Donabate Formation Downpatrick Formation Dargan Limestone Dromkeen Limestone Formation Dirtoge Limestone Formation Duncormick Formation Durnish Formation Durrow Formation Edenderry Oolite Member Feighcullen Formation Fennor Formation Ferbane Mudstone Formation Fingal Group (undifferentiated) Fearnaght Formation Fortwilliam Oolite Member Glenade Sandstone Formation Glencar Limestone Formation Greyfield Formation Hazelwood Limestone Formation Herbertstown Formation Herbertstown Limestone Formation Holmpatrick Formation Hore Abbey Limestone Formation Illaunagappul Formation Johnstown Red Marble Formation Keenaghan Shale Formation Killin Formation Killuney Conglomerate Formation Kinsale Formation Cuskinny Member Narrow Cove Member Pigs Cove Member Reenagough Member Kilbryan Limestone Formation Knockordan Limestone Formation Knockmaa Formation Knockroe Basalt Lava Flow Member Knockroe Lithic Tuff Member Knockroe Trachyte Lava Flow Member Knockroe Vitric-Lithic Tuff Member Knockseefin Volcanic Formation Knockseefin Lava Flow Member Knockseefin Lithic Tuff Member Knockseefin Vitric Tuff Member Kilsheelan Formation Lane Formation Lagganstown Formation Lough Gur Formation Loughshinny Formation Mattock Member Lismaline Micrite Formation Little Island Formation Lower Limestone Shale Loughbeg Formation Lispatrick Formation Lisgorman Shale Formation Leitrim Group Lucan Formation Boulder Conglomerate Maam Formation Malahide Formation Meenymore Formation Carnmore Sandstone Member Glen Member Quarry Sandstone Member Mellon House Formation Mornington Formation Milford Formation in Milford Formation Milverton Group (undifferentiated) Moy Sandstone Formation Mooretown Formation Muckros Sandstone Formation Mullaghfin Formation Killala Oolite Member Mullaghmore Sandstone Formation Maydown Limestone Formation Naul Formation Navan Beds Rockfield Sandstone Member Oakport Limestone Formation Burrishoole Member Creagh Member Lough Carra Member Oldchapel Limestone Formation Oldcourt Cherty Limestone Formation OMahonys Rock Formation Owenriff Member Waterfall Member Parsonage & Corgrig Lodge Formation Platin Formation Porters Gate Formation Quinagh Formation Rathkeale Formation Rathronan Formation Reenydonagan Formation Retreat Siltstone Formation Rickardstown Formation Ringmoylan Formation Rinn Point Limestone Formation Rockfield Limestone Formation Rockfleet Bay Limestone Formation Rush Conglomerate Formation Shanagolden Formation Silverspring Formation Slane Castle Formation Slevoir Formation Smugglers Cave Formation Slievenaglasha Formation Aylecotty Member Cullaun Member Ballyelly Member Fahee North Member Lissylisheen Member Balliny Member Turret Volcanic Member Subulter Volcanic Formation Suir Limestone Formation Terryglass Formation Tober Colleen Formation Topped Mountain Formation Barr Church Andesite Transition Beds Tullyallen Formation Tubber Formation Cregmahon Member Castlequarter Member Fiddaun Member Finavarra Member Newtown Member Twigspark Formation Tonweeroe Formation Argillaceous Limestones (Visean) Ulster Canal Formation Visean Limestones (undifferentiated in Visean Limestones (undiff) Waulsortian Limestones in Waulsortian Limestones Wexford Formation in Wexford Formation Caledonain Cloonfad Felsite Croaghgarrow Formation Bills Rocks Formation Cloonygowan Formation Deer Park Complex Deer Park Schist Formation Farnacht Formation South Achillbeg Formation Achillbeg Conglomerate Member Achillbeg Lighthouse Psammite Membe Achillbeg School Black Slate Member Serpentinite Claudy Formation Clashford House Formation Clogherhead Formation Clontail Formation Carricktriss Formation Ardagh Shale Formation Annabella Formation Ballinamallard Mudstone Formation Bencroy Shale Formation Bencroy Sandstone Member Ballynahown Sandstone Formation Balrickard Formation Bregaun Flagstone Formation Briscloonagh Sandstone Formation Cabra Formation Corratober Bridge Formation Central Clare Group Carrickleck Formation Carrickleck Sandstone Member Cloone Flagstone Formation Clare Shale Formation Clontrain Formation Dergvone Shale Formation Lacoon Flagstone Member Donore Formation Cruicerath Member East Point Formation Farranacliff Formation Feale Sandstone Formation Giants Grave Formation Glenoween Shale Formation Gowlaun Shale Formation Gull Island Formation Corn Hill Formation Killeshin Siltstone Formation Lackagh Sandstone Formation Lackantedane Formation Caherconreafy Member Longstone Flagstone Member Longstone Shale Member Luggacurren Shale Formation Middle Battery Formation Namurian (undifferentiated) Ross Sandstone Formation Shannon Group Shrough Formation Tullig Sandstone White Strand Formation Walshestown Formation Collon Formation Craggagh Shale Formation Lower Sandstone Member Upper Sandstone Member Creeslough Formation Cranford Limestone Formation Croaghaun Formation Gubroe Quartzite Member Croaghubbrid Pelite Formation Croveenananta Formation Trachyte Clatterstown Formation Culdaff Limestone Formation Liscarroll Limestone Formation Clay Gall Sandstone Formation Coolbaun Formation Swan Sandstone Member Drumlish Conglomerate Formation Lickfinn Coal Formation Moanour Formation Moyadd Coal Formation Westphalian (undifferentiated) Carrickdexter Formation Conglomerate & pebbly sandstone Bealtra volcaniclastic rocks Beginish Island Intrusion Ballymastocker Formation Edergole Formation Gortfinbar Conglomerate Formation Raveagh Sandstone Formation Basalt Kilmore Formation Old Red Sandstone (undifferentiated Doogort Boulder Bed Formation Doogort Beach Schist Formation Doogort Dolomite Formation Doogort Quartzite Formation Doogort Road Formation Doogort schist Formation Derryharriff Formation Denhamstown Formation Lacka Sandstone Formation Ballyferriter Formation Bulls Head Formation Ballymore Sandstone Formation in Ballymore Sandstone Formation Coumeenoole Sandstone Formation Eask Sandstone Formation Glashabeg Conglomerate Formation Coosgorrib Conglomerate Member Coosmore Conglomerate Member Coosglass Conglomerate Member Graffa More Formation Keadew Formation Sheegorey Member Moygara Formation Slea Head Formation Trabeg Conglomerate Formation Bird Hill Formation Birreen Formation Ballydavid Formation Croaghmoyle Formation Farran Sandstone Formation Gortanimill Formation Inch Conglomerate Formation Kilmurry Sandstone Formation Pigeon Rock Formation Sauce Creek Formation Slaheny Sandstone Formation Doon-na-Dell Schist Formation Doolough (per-alkaline) Granite Gne Dooagh Schist Formation Doonamo Formation Aughernagalliagh Quartzite Member Moyny Point Limestone Member Ardane Formation Ayle River Formation Ballinskelligs Sandstone Formation Ardnagluggen Sandstone Member Doulus Head Conglomerate Member in Ballinskelligs Sandstone Fm. Ballytrasna Formation Doon Lava Member Mine Head Member Carrigcleenamore Volcanics Capard Formation Cappagh Sandstone Formation Cappagh White Sandstone Formation Carrigmaclea Formation Castlehaven Formation in Castlehaven Formation Cadamstown Formation Clonaslee Member Caha Mountain Formation Coumaraglin Formation Comeragh Conglomerate Sandstone Gro Coumshingaun Conglomerate Formation Carrigduff Volcanic Member Coolnahorna Volcanic Member Croughaun Formation Devilsbit Formation Glandahalin Formation Galtymore Formation Glenflesk Chloritic Sandstone Forma Doo Lough Pebbly Sandstone Member Lough Guitane rhyolites Lough Guitane volcaniclastics in GlenfleskChloritic Sandst Fm. Glendossaun Member Gun Point Formation Gyleen Formation Ballyknock Member Ballyquinn Member Ardmore Member Harrylock Formation Helvick Formation Inshaboy Formation Kilnafrehan Conglomerate Formation Kiltorcan Formation Knockmealdown Sandstone Formation Keeper Hill Formation Lack Sandstone Formation Lough Acoose Sandstone Formation Lough Acoose Sandst Form&Conglom&pe Lough Muskry Formation Lough Slat Conglomerate Formation Old Head Sandstone Formation Bere Island Member Oldtown Bay Formation Poulgrania Sandstone Formation Pointagare Group Scalpnagown Formation Maghera Cornstone Member Sherkin Formation Sheskin Formation Shanmullagh Formation Slieve Mish Group Slievereagh Conglomerate Formation Slievenamuck Conglomerate Formation St. Finans Sandstone Formation in St. Finans Sandstone Formation in St. Finans Sandstone Formation Smerwick Group Templetown Formation Knockavellish Member Brownstown Head Member Beenlea Head Member Toe Head Formation Treanearla Formation Duvillaun Formation Valentia Slate Formation in Valentia Slate Fm. Extrusive Rhyolite Formation Lough Eske Psammite Formation Fahan Grit Formation Cloghan Green Beds Member Falcarragh Limestone Formation Fahan Slate Formation Finlough Formation Fieldstown Formation Fournocks Formation Altered Fault Rock (igneous?) Porphyritic-Megacrystic Granite Magma Mixing-Mingling Zone Gaugin Quartzite Formation Glencolumbkille Limestone Formation Glencolumbkille Pelite Formation Glenisland Formation Raheen Barr Volcanic Member Cashel Member Lough Darrdun Schist Member Glencullin River Formation Glen Lodge Formation Greencastle Green Beds Formation Glaspistol Formation Gubastuckaun Formation in Broadford Formation Hilltown Formation Hill Of Slane Formation Ballygawley Tonalitic Gneiss Porphyritic rhyolite Ardara Granite, G1 variety Ardara Granite, G2 variety Ardara Granite, G3 variety Barnesmore Granite, G1 variety - Cronamuck Granodiorite Barnesmore Granite, G2 variety Barnesmore Granite, G3 varieties of sheet complex Syenite Trachyte Breccias Trachyte Blackstairs Graiguenamanagh Granite Gneiss Blackstairs Type 1 Granite Blackstairs Type 2 Equigranular Granite Blackstairs Type 2 Microcline Porphyritic Grani Cloghmore Granodiorite Corvock Granite Costello Murvey Granite Errisbeg Townland Granite Callowfinish Granite Murvey Granite Carna-type Roundstone Granite Cuilleen-type Minor Granitic Bodies Crossdoney Granite Newry Granite Inish Granite Knock Granite Lettermore Granodiorites Letterfrack granitic plutons Lough Fadda Granodiorite Lough Lurgan Granite Barravore Aplogranite Carrawaystick Aplite Glendalough Adamellite Glen of Imail Quartz-diorite Percys Table Granodiorite Type 1 granodiorite Type 3 muscovite porphyritic Type 4 muscovite/microcline porphyr Type 2e equigranular Type 2p microcline porphyritic Omey Granite Drogheda Granite Shannapheasteen Granite Type 1 Granite Tullow Type 2 Equigranular Granite Tullow Type 2 Sparsely Porphyritic Granite Tullow Type 2 Microcline Porphyritic Grani Ballynamuddagh Granite Easky Adamellite Lough Talt Adamellite Fanad Granite Fanad Granite Feldspar porphyry Lough Nacorrussaun Metabasites Rhyolite Thorr Granite Thorr Granite migmatitic facies Rafts in Thorr Granite Toories Granite Tullagh Point Granite Main Donegal Granite Microgranite and related rocks Inishderry Formation Inishowen Head Grits and Phyllites Inishkea Division (undifferentiated Inver Schist Formation Croghan Kinshelagh Granite Quartz Diorite Gneiss & Granitic Gn Metagabbro and Related Lithologies Oughterard Granite Feldspar Porphyry Quartz porphyry and Felsite Quartz Diorite Gneiss Saltees Granite Ballyconneely Amphibolite Amphibolite (northeast Ox Mountains Metabasite Metadolerite or amphibolite Serpentinite Rathlin OBirne Granite Rosses Granite G1 variety Rosses Granite G2 variety Rosses Granite G3 variety Rosses Granite G4 variety Carnsore Granite Slieve Gamph Igneous Complex, equigranular Slieve Gamph Igneous Complex, megacrystic Slieve Gamph Igneous Complex, Muscovite Granite Layered Gabbro Layered Gabbro Layered Gabbro Layered Gabbro Layered Gabbro Hawaiite Lava Vent Agglomerate Early Gabbro Granophyre Trawenagh Bay Biotite Granite Trawenagh Bay Biotite-muscov. Grani Trawenagh Bay Biotite-muscov. Grani Trawenagh Bay Aplogranite Trawenagh Bay Transitional G1/G2 Gr Basalt & Trachyte Lava Cam Lough Breccia Porphyritic Felsite Porphyritic granophyre Shanes Hill Rhyodacite Vent agglomerate Ballydeenlea Formation Kanfinalta Formation Knockerk Formation Bockagh Member Kennetstown Formation Killadangan Formation Kilnaleck Shale Formation King's Hill Formation Ardaturrish Member Ardnamanagh Member Keem Conglomerate Formation Keem Limestone Formation Keem Schist Formation Killeter Quartzite Formation Ulster White Limestone Formation Lackan Formation Lambay Volcanic Formation Lough Brohly Quartzite Formation Lough Brohly Schist Formation Lower Crana Quartzite Formation Lough Doo Formation Slieve League Formation Letter Formation Lower Falcarragh Pelite Formation Lough Foyle Succession Pelitic unit in Lough Foyle Success Lough Mourne Formation Lower Palaeozoic rocks Loughros Formation Agglomerate Andesite Aplite Hornblende diorite Appinite suite Appinite suite intrusive breccia Basalt Chert diamictite Dolerite Dolerite and Gabbro Diorite Felsite Marginal Porphyritic Granite Gabbro Granodiorite and diorite Fine-grained foliated granite in Cornagnoe Formation Microgranite Granite (undifferentiated) Little Harbour Formation Marble Metadolerite Metadolerite & Lithologically diver Metadolerite Metagabbro & orthogneiss suite Monzogranite Mudbank limestone Oolitic limestone Pegmatite Rafts in Thorr Granite; pelite Feldspar or Quartz Porphyry Caledonian Pyroxene Diorite in Lough Eske Psammite Formation in Finnalaghta Formation in Caha Mountain Formation Rafts in Thorr Granite Serpentinite in Rathkenny Formation, in Central and Northern Belt, in Salterstwon Formation Tectonic schist Rafts in Thorr Granite; lithologically diverse Volcanics Volcaniclastic Rocks in Lough Eske Psammite Formation, in Termon Formation Undifferentiated pyroclastic rocks Malin Schist Formation Anaffrin Formation Glennamong Member Sraheens Lough Formation Minnaun Sandstone Formation Moyteoge Head Formation Ashleam Bridge Dolomitic Formation Ashleam Bridge Quartzite Formation Ashleam Bridge Graphitic Member Ashleam Bay Formation Atlantic Drive Schist Formation Barnanoraun Schist Formation Connemara Marble Formation Cullydoo Formation Srahmore Quartzite Member Srahmore Quartzite and Schist Membe Derreen Marble Formation Dooega Head Formation Knockcorraun Formation Knockcorraun Lough Marble Member Portnahally Formation Ashleam Head Formation Attymass Group (undifferentiated) Attymass Volcanic Formation Attymass Formation (undifferentiated) Lower Attymass Formation Upper Attymass Formation Bennabeola Quartzite Formation Birreencorragh Schist Formation Birreencorragh Quartzite Member Ballynakill Schist Formation Buckoogh Formation Bunnafahy Conglomerate Formation Bunaveela Lough Formation Carrick OHara Formation Corradrishy Quartzite Member Cashel Schist Formation Corradrishy Formation Cleggan Boulder Bed Formation Corraun Formation Corraun Schist (Lower) Member Corraun Quartzite Member Corraun Schist (Upper) Member Kildownet Quartzite Member Cove Schist Formation Derreen Schist Member Mount Eagle Formation Mount Eagle Schist Member Glenlara Volcanic Formation Curraghnagark Member Doonweelin Member Grit Unit (Curraghnagark Member) Lakes Marble Formation Leckee Quartzitic Formation Kilmore Limestone Member Liscarragh Formation North Carrowgarve Formation Ooghnadarve Formation South Carrowgarve Formation Skerdagh River Volcanic Formation Glenlara Marble Member Srahmore Lodge Dolomite Formation Streamstown Schist Formation Tawnyshane Tillite Formation Slievenagark Member Newantrim Member Meelick Member Callow Formation Cornamona Marble Formation Lough Kilbride Schist Formation Lower Lismoran Formation Upper Lismoran Formation Westport Grit Formation Mullyfa and Deele Formations Undifferentiated Dalradian schists Nakil Formation Middle Nephin Group (Undifferentia Nephin Formation Argyle Group Appin Group Bencorragh Formation Bunmahon Formation Bohaun Volcanic Formation Derry Bay Formation Delaney Dome Meta-rhyolite Formatio Derryveeny Formation Derrylea Formation Carricklea Grey Marble Member Carricklea Pink Marble Member Derrymore Formation Dunabrattin Formation Finny Formation Glenummera Formation Golam Formation Gorumna Formation Sedimentary lenses Knock Kilbride Formation Letterbrock Formation Loch Faoilean Formation Lettermullen Formation Mount Partry Formation Maumtrasna Formation Mweelrea Formation Slate Members Rosroe Formation Ryans Farm Formation South Connemara Group Sheeffry Formation Skerd Formation Tourmakeady Formation Ballygreany Formation Castleshane Formation Carrickateane Formation Shanmullagh Mill Formation Aghfarrell Formation Dowery Hill Member Ballybro Formation Butter Mountain Formation Donard Andesite Member in Butter Mountain Formation Ballylane Formation Moneyteige Member Ballylane Formation & Intermediate Carracastle Formation Gortnagleav Formation Grahormack Formation Horan Formation Kilmacthomas Formation in Kilmacthomas Formation Muggorts Bay Formation Milltown Formation Oaklands Formation Palace Member Riverchapel Formation Seamount Formation TUSKAR GROUP Tawnyinagh Formation Arklow Head Formation in Arklow Head Formation Avoca Formation in Avoca Formation in Avoca Formation Ballymoyle Formation in Ballymoyle Formation in Ballymoyle Formation Ballynaclogh Formation Caher Hill Formation Campile Formation Garraun Member Newtown Head Member in Newtown Head Member in Newtown Head Member Arthurstown Member Ballyhack Member in Ballyhack Member Ross Member in Ross Member shale units in Campile Formation in Campile Formation in Campile Formation Clashabeema Formation Finnalaghta Formation Kilmacrea Formation in Kilmacrea Formation Laragh Formation Toberelatan Formation Ballinatray Formation Carrighalia Formation Courtown Formation in Courtown Formation Grange Cottage Formation Ooghnadirka Schist Formation Tramore Limestone Formation Tramore Shale Formation Kildare Limestone Formation Allen Andesite Formation Coronea Formation Grange Hill Formation Red Island Formation Northern Belt (undifferentiated) Paragneiss, Migmatite and Hornfels Oriel Brook Formation Central Belt (undifferentiated) Corderrybane Shale Formation Drumagelvin Greywacke Formation Kehernaghkilly Formation Tullyraghan Shale Formation Askingarran Formation Ballyhoge Formation Glencullen River Formation Maulin Formation Oldcourt Member Brownsford Member Ballybeg Member in Ballybeg Member Kilcarry Member Monaughrim Member in Monaughrim Member Ballyneale Member in Ballyneale Member Knockree Member Roundwood Member in Maulin Formation in Maulin Formation Wicklow Head Formation Ballymalone Formation Conlanstown Formation Slieve Gamph Igneous Complex, Acidic Lithologies Slieve Gamph Igneous Complex, Basic Lithologies Unassigned metasediment rafts Ox Mountains Granodiorite Adamellite Slieve Gamph Igneous Complex, Tonalite Port Askaig Formation Dobbin Sandstone Formation Mall Member Drumarg Conglomerate Formation Kinrovar Schist Kingscourt Gypsum Formation Pollacappul Formation Glencalry Schist Member Glenagh River Limestone Member Lugnalettin Black Schist Member Portrane Limestone Formation Portrane Volcanic Formation GREENORE POINT GROUP KILMORE QUAY GROUP Slishwood Division, Semi-pelitic biotite schists Slishwood Division, Metalimestones Slishwood Division, Cregg House Formation Slishwood Division, Pelitic & semi-pelitic paragneiss Slishwood Division, Psammitic Paragneiss Killag Formation Prioryland Formation Castlerahan Formation Raheen Barr Albite Schist Formation Raheen Barr Quartzite Formation Red Mans Cove Formation Reelan Formation Rhinns Complex of Inishtrahull etc. Rathkenny Formation Ridge Point Psammitic Formation Rinmore Formation Ballytoohy Formation Bunnamohaun Siltstone Formation Bouris Formation Clogher Head Formation Cregganbaun Formation Croaghmarhin Formation Coosglass Slate Formation Derryheagh Formation Drom Point Formation Derrymore Glen Formation Fairy Hill Conglomerate Formation Foilnamahagh Formation Ferriters Cove Formation Glen Pebbly Arkose Formation Glencraff Formation Inishnabro Formation Inishvickillane Formation Kilbride Formation Tonalee Member Kill Sandstone Formation Knockmore Sandstone Formation Knockshigowna Formation Landing Place Formation Ben Levy Grit Formation Lettergesh Formation Gowlaun Member Lough Mask Formation Ardaun Lava Member Mill Cove Formation Lough Muck Formation Lough Nacorra Formation Salrock Formation Strake Banded Formation Inniskeen Formation Salia Formation Annagh Member Salterstown Formation Scotch Port Schist Caherconree Formation Sessiagh-Clonmass Formation Clonmass Limestone Member Port Limestone Member in Sessiagh-Clonmass Formation Pollareagh Member Shanaghy Green Bed Formation Foilcoagh Bay Member Silurian (undifferentiated) Ahenny Formation Brownstown Member Cornagnoe Formation Cloonnamna Formation Carrighill Formation Dunmurry Formation Glen Ding Formation Glen School Formation Guidenstown Formation Inchacoomb Formation Assaroola Member Lough Avaghon Formation Aghnamullen Member Mullanalt Member Cootehill Member Lisbellaw Formation Oghill Formation Pollaphuca Formation Rathclarish Formation Rahilla Formation Slieve Glah Formation Slate Quarries Formation South Lodge Formation Shercock Formation Taghart Mountain Formation Tipperkevin Formation Slieve Tooey Quartzite Formation Ballindysert Formation Ballyhest Member Kilclooney Member Ballygeana Formation Broadford Formation Broadford Formation & conglom & coa in Broadford Formation Garryduff Formation Hollyford Formation Slievemore Psammitic Formation Slieve Bernagh Formation Slieve Bernagh Formation & conglom in Slieve Bernagh Formation Slievemore Schist Formation South Slope Quartzite Member St. Marys Basalt Snowtown Formation Srah Formation Srahlaghy Limestone Formation Srahlaghy Quartzite Formation Skerries Formation Stags of Broad Haven Schist St. Itas Formation Cratloes Formation Ballycar South Member Glennagross Member Annascaul Formation Ballynane Formation Cloonierin Formation Derryfadda Formation Kilanena Formation Tawnaghmore Formation Termon Granite Granitic dykes assoc w Termon Grani Termon Formation Knockletteragh Member Dolerite and Gabbro Lower Basalt Formation Ballymacadam Formation Deerycreevy Sandstone Formation Kingscourt Sandstone Formation Mercia Mudstone Formation Milltown Conglomerate Formation Tooromin Shale Formation Lough Neagh Group Upper Crana Quartzite Formation Upper Falcarragh Pelite Formation White Island Bridge Formation <all other values>