23 Objective – Notes 3.3 (Pg 39)We will be able to describe the relationship between compaction, cementing, clastic and chemical sedimentary rocks.
24 Ch 3.3 Erosion Erosion – Weathering and removal of rock Water, wind, ice, gravity
25 DepositionDeposition – When rock sediment is deposited into a new areaLargest sediments deposit firstSmall sediments deposit last
26 CompactionCompaction – A process that squeezes or compacts sediments
27 CementationCementation – When dissolved minerals are deposited in the tiny spaces among the sediments (sediments are glued together)
28 Clastic Sedimentary Rocks Clastic sedimentary Rock – made of weathered bits of rock and minerals
29 Chemical Sedimentary Rocks Chemical Sedimentary Rock – Dissolved minerals become solid in water
30 Are clastic sedimentary formed by compaction or cementing Are clastic sedimentary formed by compaction or cementing? Chemical sedimentary?Clastic Sedimentary Rock – CompactionChemical Sedimentary Rock - Cementing
31 What is unique of sedimentary rocks? They give us clues to how, when and where the rock formed.Bottom layers are the oldest layerTop layer is the youngest layer
32 What is unique of sedimentary rocks? Fossils are only found in sedimentary rocks.