and mafic compositions.intrusive bodiesintruzivni telesaBodies formed by magma crystallization under the earth surface.intrusive rocksintruzivni horninyRocks that appears to have crystallized from magma emplaced in surrounding rock.isoclinal foldizoklinalni vrasaA fold in which the limbs are parallel to one another.isostasyizostazeThe balance or equilibrium between adjacent blocks of crust resting on a plastic mantle.isostatic adjustmentizostaticke vyrovnaniConcept of vertical movement of sections of the earth s crust to achieve balance or equilibrium.izometric shapeizometricky tvarTerm describing ball-like shape of mineral grains.jointprasklina, trhlinaA fracture or crack in bedrock along which essentially no displacement has occured.JurassicjuraA period in Mesozoic (145-195 million of years ago).K-feldsparsdraselne zivceSubgroup of feldspars containing potassium in the structure (KAlSi3O8). Properties see feldspars.kaolinkaolinSediment composed mostly of clay mineral kaolinite. It was formed as a residual rock by processes of chemical weathering.kaolinitekaolinitNon-swelling member of clay mineral group. Properties see clay minerals.karstkrasAn area formed mostly of limestones with many sinkholes and a cave system beneath the land surface, usually lacking a surface stream.kinetic metamorphismdislokacni metamorfozaSpecial type of metamorphism caused by tectonic forces in a fold zone.kyanitekyanitMineral with formula Al2SiO5 formed during metamorphism. Light blue to greenish blue in colour, cleavaged. Hardness is 5 parallel to long direction of crystal and 7 across crystal. It forms blade-shaped crystals and has vitreous luster.labradoritelabradoritMember of plagioclase subgroup with special optical effects (it reflects daylight as blue in some slices). Properties see feldspars.laminationlaminaceThe layering or bedding less than 1 cm in thickness in a sediment or a sedimentary rock.landslidesesuvThe general term for a slowly to very rapidly descending rock or debris (see earthflow).lateral erosionbocni erozeErosion and undercutting of stream banks caused by a stream swinging from side to side across its valley floor.lateral morainebocni morenaA low ridgelike pile of till along a side of a glacier.lavalavaMagma on the earth's surface. Fluid rock such as that which issues from a volcano or a fissure in the earth's surface.lava flowlavovy proudLong, narrow stream of lava flowing downhill from a volcano.lava sheetlavovy prikrovWide-spreaded sheet of lava covering large area around a volcano.lepidoblastic texturelepidoblasticka strukturaType of metamorphic texture formed mostly of scaled minerals.limbrameno vrasyPortion of a fold shared by an anticline and a syncline.limestonevapenecA sedimentary rock composed mostly of calcite.limonitelimonitLimonite (Fe2O3.nH2O). is a general name for several rust-like hydrous iron oxides. It usually forms rust-like coatings on rocks. Yellow-brown, orange-brown to dark brown in colour.lithificationzpevnovani (diageneze)The consolidation of sediment into sedimentary rock.litospherelitosferaThe rigid outer shell of the earth, 70 to 125 or more kilometers thick.local metamorphic rockslokalni metamorfovane horninyRocks produced by local metamorphism.local metamorphismlokalni metamorfozaMetamorphism involving relatively high temperature or pressure which affects small area.loesssprasA fine-grained deposit of wind-blown dust containing CaCO3 often in the form of "nodules".loessloamsprasova hlinaEolic sediment formed by leaching of CaCO3 from loess.losing streamStream that loses water to the zone of saturation.lower mantlespodni plastOne of the inner shells of the earth.lusterleskThe quality and intensity of light reflected from the surface of a mineral.macroscopically densemakroskopicky celistvyType of rock texture (according to absolute size of grains) with macroscopically non-visible grains.mafic rockstmave vyvrele horninyIgneous rocks with low amount of silica. They are composed mostly of Fe, Mg rock-forming minerals.magmamagmaMolten rock, usually mostly silica. It may