UNIT 1 ROCKS WEATHERING Summary Sedimentary Igneous Metamorphic

UNIT 1: ROCKS & WEATHERING Summary • • • Sedimentary Igneous Metamorphic Uses for rocks Weathering Limestone

ROCKS Three Types of Rock COLUMN X COLUMN Y X A Igneous 1 Rock changed by heat or pressure A B Sedminentary 2 Volcanic lava which has cooled B C Metamorphic 3 Compressed remains of plants and animals C Category Rock Igneous Basalt Characteristics Insert Number from opposite Table Granite Y Example Match the characteristics below to the rock on the table opposite 1 Hard rock used for gravestones. 2 Course brown rock with sand grains 3 Multi coloured & contains crystals. 4 Light coloured hard rock used in roads. Sedminentary Sandstone 5 Permeable so water passes through it. 6 Heavy black rock. Limestone Metamorphic Quartzite Marble LIMESTONE: Irelands most common rock How is it formed? What do we use it for CASE STUDY: QUARRY Quarrying is where we take dig giant holes to extract rocks out of the earth. We use the rocks as building materials for houses and roads. Some negative effects include pollution from dust and they are an ugly eyesore on the landscape. KEY WORDS Igneous Sedimentary Metamorphic Permeable Limestone Strata Fossils

KEY WORDS • Weathering • Erosion • Freeze-Thaw • Precipitation The Forces of Weathering Look at p 16&17 What is Denudation Mechanical Freeze Thaw Action P 22 what are 3 stages 1 Weathering Chemical Caused by chemicals in ___________________ Location_______________ Rock ________________ Exposed Limestone called ___________________ 2 ABOVE GROUND Two Key Features (1) Limestone____________ has grooves called_____________ And blocks called____________ 3 (2) Swallow holes are holes which _______disappear into

KEY WORDS • Karst • Limestone • Clint • Grike • Limestone Pavement • Stalactities • Stalagmites • Swallow Holes Rock here is: _____ HOW IS LIMESTONE ERODED BY CARBONATION SURFACE FEATURES: KARST REGION: BURREN

OVERGROUND: KARST REGION: BURREN E Pillars D Stalagmite C Stalactite B Swallow Hole A Cave Place letter at location of feature UNDERGROUND FEATURES Limestone caves contains features formed by dripping water containing ______

CASE STUDY: LAND USE CONFLICT IN THE BURREN The Burren National Park covers the Karst landscape in Co. Clare. There are proposals to develop a visitor centre to increase tourism in the area. This has caused conflict in the area. Look at p 23 and fill in some arguments for and against the Bureen Visitor Centre.