Presentation on theme: "In your Notebook… Answer the following questions about the picture to the right: How and where did this rock cool? What minerals might it be made up."— Presentation transcript:
1In your Notebook…Answer the following questions about the picture to the right:How and where did this rock cool?What minerals might it be made up of?Make sure to explain how you knew the answers!
2What do rocks tell us about the Earth? Sedimentary RocksWhat do rocks tell usabout the Earth?
3SedimentsSmall pieces of rock that are moved and deposited by water, wind and gravityWhen sediments come together they form sedimentary rocks
4Sedimentary Rock Formation DepositionSediments are depositedLithificationPhysical and chemical processes that transform sediments into sedimentary rocks
5Sedimentary Rock Formation CompactionWeight of the overlying sediments forces the sediments closer togetherCementationMineral growth “glues” sediment grains together into a solid rock
6Sedimentary Rock Features BeddingHorizontal layering of sedimentary rocks
7Evidence of Past LifeFossils can be preserved in sedimentary rocks during the lithification process(Organism Minerals Rocks)
8Types of Sedimentary Rocks Clastic Sedimentary RocksForm from the deposit of loose sediments that accumulate on Earths surfaceClassified by the size of their particlesCoarse grained, medium grained and fine grained
9Types of Sedimentary Rocks Chemical Sedimentary RocksMinerals precipitate out of saturated solutions and settle to the bottomLayers of chemical sedimentary rocks form, called evaporites
10Types of Sedimentary Rocks Biochemical Sedimentary RocksForm from the remains of once living thingsLimestone comes from calcium carbonate which is used by some organisms (shells)
11Classification of Clastic Sediments How are clastic sediments classified?What type of clastic sediment has largest particles size? Smallest?What size are classified as sand?What rock type is made up of cobbles?Classify a sediment that is mm in size.What type of rock has 0.05 mm sediment size?
12Classification of Sed Rocks Name 3 types of sed rocks.How are clastic sed rocks classified?Compare and contrast conglomerate w/ breccia.How do chem. Sed. Rocks form?Name 3 common evaporite minerals.How do organic sed. Rocks form?Name 2 organic sed rocks.