* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Diapositiva 1
Survey
Document related concepts
History of geology wikipedia , lookup
Age of the Earth wikipedia , lookup
Paleontology wikipedia , lookup
Evolutionary history of life wikipedia , lookup
Large igneous province wikipedia , lookup
Provenance (geology) wikipedia , lookup
Tectonic–climatic interaction wikipedia , lookup
Composition of Mars wikipedia , lookup
Algoman orogeny wikipedia , lookup
Transcript
UNIT 6 The Earth’s structure FORMATION OF THE DIFFERENT TYPES OF ROCKS Natural Science 2. Secondary Education UNIT 6 Formation of the different types of rocks TYPES OF ROCKS MAGMATIC ROCKS METAMORPHIC ROCKS SEDIMENTARY ROCKS Click on each box to find out more Natural Science 2. Secondary Education UNIT 6 Formation of the different types of rocks Formation of magmatic rocks 1 Magma (very hot masses of molten minerals) rises up slowly through the lithosphere towards the Earth’s surface. 2 Natural Science 2. Secondary Education The magma that reaches the surface through volcanoes cools down quickly and forms volcanic rocks. 3 The magma that does not reach the surface cools down slowly and forms plutonic rocks. Go back to the start menu UNIT Formation of the different types of rocks 6 Formation of metamorphic rocks 1 Some rocks inside the lithosphere are subjected to great pressures and high temperatures. Natural Science 2. Secondary Education 2 High pressure and temperatures cause changes in these rocks that turn them into metamorphic rocks. Go back to the start menu UNIT 6 Formation of the different types of rocks Formation of sedimentary rocks 1 Wind and moving water beat away fragments of rocks and transport them. 2 The fragments sink to 3 the sea floor as sediment. Over time they build up and form layers. Natural Science 2. Secondary Education When many layers are formed, the lower layers of sediment are compacted by the upper layers and are transformed into sedimentary rocks. Go back to the start menu