Kurikka 8 / E8 19 3 / E12 67 Peräseinäjoki SELECTED GEOSITESNärpes IN THE LAUHANVUORI-Närpiö Teuva HÄMEENKANGAS 67 Jalasjärvi GEOPARK AREA Kauhajoki 44 Kaskinen Kaskö Iso-Kakkori FROM MOUNTAINS TO MIRES Susiluola Karijoki The geological story of Lauhanvuori- Hyypänjokilaakso Hämeenkangas Geopark tells about dramatic Kristinestad Kristiinankaupunki Käskyvuori change in landscape. In ancient times, a great Nummijärvi mountain range formed in the area. It soon collapsed, and a flat plain was developed. On this plain, a diverse network of mires has developed after the ice age. Katikankanjoni 3 / E12 The oldest rocks in the area were born deep inside the mountains 1,900 million years ago. The youngest stone was made from sand deposited Kauhaneva on the shores of a tropical sea around the time Karvianjärvi multicellular life forms developed, or some 600 23 million years ago. KIhniö Kauhaneva-Pohjankangas Aitoneva Lauhanvuori National Park The heavy ice sheets during the Ice Age were gentle Alkkianvuori on these areas, preserving many of the old deposits. Kankarinjärvi It is thus an important area for research in the Kivijata Spitaalijärvi Raatosulkonneva geological development of Northern Europe. Isojoki Karvia Nerkoonjärvi Lauhanvuori Kuivasjärvi Aumakalliot National Park While the area was almost completely covered by water after the Ice Age, the land started rising rapidly. The events related to land uplift, including a shifting shoreline, affected the soil and also played a role in the development of the mires. The range of mire types is particularly diverse in this area. 8 / E8 44 Mustasaarenkeidas Aurejärvi Huidankeidas Honkajoki Parkano Haapakeidas Katselmankallio Pohjankangas Pohjanlahti Bottniska viken Bothnian Bay Siikaisjärvi Merikarvia Siikainen 23 Selkämeri Bottenhavet Kankaanpää Jämijärvi Bothnian Sea Viheräperänkeidas Hämeenkangas Uhrilähde-Kylmänmyllynlähde Hämeenkangas Isojärvi Soininharju-Niiniharju Ikaalinen Kyrösjärvi Pomarkku 3 / E12 23 44 Hämeenkyrö 8 / E8 Noormarkku Lavia 0 10 20 30 km Karhijärvi 2 © Metsähallitus 2019 PORI BJÖRNEBORG Ylöjärvi PlutonicPlutonic rrocksocks Granodiorite,Granodiorite, tonalite,tonalite, quartz dioritediorite Kauhajoki (1.89-1.88(1.89-1.88 Ga) Kauhajoki Granite,Granite, gabbro,gabbro, diorite,diorite, peridotiteperidotite (1.89-1.87 Ga) Quartz monzonite, granite, granodiorite KKarijokiarijoki (1.88-1(1.88-1.87.87 Ga) SedimentarySedimentary rocksrocks Siltstone,Siltstone, ssandstone,andstone, cconglomerateonglomerate ((1.0-0.61.0-0.6 GGa)a) MetasedimentsMetasediments andand volcanic/subvolcanicvolcanic/subvolcanic rocksrocks KihniöKihniö BiotiteBiotite pparagneiss,aragneiss, mmetagreywackeetagreywacke ((1.95-1.871.95-1.87 GGa)a) IIsojokisojoki KKarviaarvia VolcanicVolcanic rrocksocks (1.90-1.88(1.90-1.88 GGa)a) SubvolcanicSubvolcanic rrocksocks (1.88-1.87(1.88-1.87 GGa)a) Fault zones HHonkajokionkajoki PParkanoarkano Fault zones SELECTED DykesDykes SSiikaineniikainen GEOSITES The Lauhanvuori post-glacial BEDROCK GEOLOGY fault at Kivijata is a mark left by JJämijärviäOFmijär vTHEi GEOPARK AREA an earthquake after the ice age. KKankaanpääankaanpää Plutonic rocks It is a six-kilometre-long scar in Granodiorite, tonalite, quartz diorite (1.89-1.88 Ga) the Earth’s crust. The earthquake Kauhajoki Granite, gabbro, diorite, peridotite Ü (1.89-1.87 Ga) occurred around 9000 years ago 0 3030 km Quartz monzonite, granite, granodiorite Karijoki (1.88-1.87 Ga) and was approximately magnitude Pohjakartat:Pohjakartat: © MaanmittauslaitosMaanmittauslaitos (Basemaps:(Basemaps: © NationalNational LandLand SurveySurvey ofof Finland)Finland) Sedimentary rocks 7. It is the southernmost post-ice- Geologic maps: © Geological Survey of Finland, 2018 Siltstone, sandstone, conglomerate age earthquake scar in Finland. (1.0-0.6 Ga) Metasediments and volcanic/subvolcanic rocks Kihniö Biotite paragneiss, metagreywacke The Alkkianvuori granite slope is one of the oldest rock formations The Kivijata stone field is an ancient shore in two generations. It is (1.95-1.87 Ga) Isojoki Karvia in the area. The 1900 million-year-old rocks formed in the depths of made up of sandstone deposited on the shore of the ancient sea around Volcanic rocks (1.90-1.88 Ga) the earth, but have risen to the surface as the ground has eroded. 600 million years ago. The fossilised sandy shore broke down into Kauhaneva is one of Finland’s finest raised bogs and is an internationally Subvolcanic rocks Alkkianvuori is one of the old triangulation points in the region. boulders, which were then worn into beach ridges by the waves after the recognised bird site. The entire range of raised bog surface structures open (1.88-1.87 Ga) ice age. In the past, it was thought to be a wall built by giants. out along the duckboard route. The bog is also an important cultural site. Honkajoki Parkano Fault zones The medieval Kyrönkangas road crosses the narrowest point of the bog. Dykes Siikainen Plutonic rocks Plutonic rocks Granodiorite, tonalite, quartz diorite Best Granodiorite, tonalite,(1.89-1 quartz.88 Ga) diorite scenic point Kauhajoki (1.89-1.88 Ga) Kauhajoki Plutonic rocks Granite, gabbro, diorite, peridotite in the area KankaanpääJämijärvi GranoGranitdeiorite,, gabbr tonalite,o, diorit(1.89-1.87 quartze, peri d Ga)ioritedotite Kauhajoki (1.89-1(1.89-1.87.88 Ga) Ga) Quartz monzonite, granite, granodiorite Karijoki PlutonicPlutonic GranitrrocksQuartzockse, gabbrmonzonite,o, diorit(1.88-1 granite,e, peri.87dotite granodioriteGa) (1.89-1.87 Ga) Karijoki Granodiorite,Grano(1.88-1diorite,. 87tonalite,tonalite, SGa)edim quartzentar dioritedyiorite rocks (1.89-1.88(1.89-1Quartz.88 Ga)monzonite, granite, granodiorite Siltstone, sandstone, conglomerate Karijoki KKauhajokiauhajoki Sedim(1.88-1entar.y87 r oGa)cks Granite,Granite, gabbro,gabbro, diorite,diorite(,1 peridotiteperi.0-0d.6otite Ga) (1.89-1.87Siltsto nGa)e, sandstone, conglomerate Sedimentary rockMsetasediments and volc0anic/subvolcanic 30 km Quartz(1.0 monzonite,-0.6 Ga) granite, granodiorite Pohjakartat: © Maanmittauslaitos (Basemaps: © NationalQuartz LaSndilt Ss tmonzonite,uornvey, soanf Frdions lcktagranite,onneds), co ngranodioriteglomerate Katikankanjoni is a 9000-year-old ravine eroded by flowing water. The KKarijokiarijoki (1.88-1.87 Ga) Plutonic rocks MKe(1.88-1.87ithas(n1e.id0ö-i0m.6e Ga)Gnats) and vBoiloctiaten picar/sagubnevisosl, cmaentaicgr eywacke streams that originate from Kauhaneva and Kauhajärvi have etched a Granodiorite, tonalite, quartz diorite SedimentarySedMriomeckteansteadryim rocksroecnktss and vol(c1a.9n5i-c1/.s8ub7 Gvao)lcanic Kihniö Biotite paragneiss, metagreywacke Isojoki (1.89-1.88 Ga) Karvia rockSiltstone,Silststone, ssandstone,andstone, cconglomerateonVgollocmaneirca rteocks network of sharp grooves into the gently sloping esker formation. Kolmen- Kauhajoki Kihniö (1.95-1.87 Ga) Isojoki KaGranitrviae, gabbro, diorite, peridotite ((1.0-0.61.0-B0i.o6t itGGa)ea p) aragneiss, m(1e.t9a0g-r1e.y8w8a Gckea) Käskyvuori is another old granite hill in the area. When the ancient Hyypänjokilaakso is the largest valley in Southern Ostrobothnia. The tuulenlakki, which rises in its centre, is an old midsummer celebration site. (1.89-1.87 Ga) MetasedimentsMetasedim(1V.eo9nl5ct-as1n .anda8ic7n rdGo avolcanic/subvolcaniccvk)oslcanSicu/bsvubolcvaonlic aroncick s Isojoki Karvia (1.90-1.88 Ga) Quartz monzonite, granite,K granodioriteihniö rocksrocks Volcanic rocks (1.88-1.87 Ga) hill range formed at a depth of 10km below ground, there was a lot depression formed in a bedrock fracture valley and is more than 20 Karijoki (1.88-1.87 Ga) Kihniö BiotiteBiot(it1Se. u9pparagneiss,b0a-vr1ao.g8lcn8ae nGisiacs) , rmmetagreywackeocektasgreywacke Fault zones Honkajoki Parkano ((1.95-1.871.9S5(-u11b..8v87o- lcGGa)1a.a8n)7ic Groac)ks of molten rock, which later crystallised into granite. You can now kilometres in length, up to 3 kilometres wide and over 50 metres deep. IIsojokisojoki SedKKarviaimaernvtaiary rocks VolcanicVolc(a1n.8ic8 rrocks-o1c.8k7s Ga) Siltstone, sandstone, conglomerate Fa(1.90-1.88(u1.l9t0 z-1on.88e GGa)sa) admire the varied granite rocks from one of the finest observation Hyypänmäki is a ridge that predates the last ice age and is now covered Honkajoki Parkano Fault zones Dykes Honkajoki (1.0-0.6 Ga) Parkano SubvolcanicSubvolcanic rrocksocks points in the area. in peatland and clay soil that has been cleared into fields. The national, Metasediments and volcanic/subvolcanic (1.88-1.87(1.88-1.87 GGa)a) Siikainen Dykes culturally important landscape was already inhabited during the Stone is one of the most difficult bogs to traverse in rocks FaultFauDlyket zoneszons es Mustansaarenkeidas KihnHHonkajokiiöonkajoki Biotite parPParkanoaganrekisas,n moetagreywacke Iso Kakkori boasts some of Age, when the area was still a bay in the Baltic Sea. Western Finland, and is home to the most extensive quagmires Sinii ktheaSiii nkeaninen (1.95-1.87 Ga) Isojoki Karvia KankaVaolncapnäic äroJckäsmijärvi DykesDykes the most spectacular scenery area. The accessible bird tower provides views of expansive swampland, (1.90-1.88 Ga) SSiikaineniikainen to be found in the region. It is which provides an important habitat for birds, dotted with forest islands. KanKkaanaknapaänäpJäämJSURFICIALäijmäijrSväuirbvviolcanic rocks GEOLOGY (1.88-1.87 Ga) among the area’s youngest OF THE GEOPARK AREA Honkajoki Parkano KKankaanpääankaanpääJJämijärviämFaijuältr zvoni es granite formations and is part 0 30 km of a continuous formation Pohjakartat: © MDaaykenmisttauslaitos (Basemaps: © National Land Survey of Finland)