1. Sedimentary Rocks: Digging Deeper (pg. U8) START 8, 8/28/09 Earth Science Mr. Comerford

2. Warm-up What are the 3 types of sedimentary rock (discussed yesterday)? What are the 3 types of sedimentary rock (discussed yesterday)? Give an example of each. Give an example of each. What do the words “compact” and “cement” mean to you? What do the words “compact” and “cement” mean to you?

3. Objective SWBAT SWBAT Discuss sedimentary rock classification and formation Discuss sedimentary rock classification and formation Apply knowledge of sedimentary rocks to situational questions Apply knowledge of sedimentary rocks to situational questions

4. Sedimentary Rock Layered Layered Sediments combine, solidify into rock Sediments combine, solidify into rock Examples: Examples: Sandstone Sandstone Rock Salt Rock Salt Coal Coal

5. 3 Types - Matching Examples: Examples: Sandstone Sandstone Rock Salt Rock Salt Coal Coal Types Types Chemical Organic Clastic

6. 3 Types - Defined Clastic Clastic Fragments from other rocks, moved, depositied Fragments from other rocks, moved, depositied Chemical Chemical Water evaporates, minerals (crystals) precipitate Water evaporates, minerals (crystals) precipitate Organic Organic Remains of living things Remains of living things

7. Locations - Clastic Once lower areas Once lower areas Once shallow seas Once shallow seas Example: Sandstone Example: Sandstone Ocean, shoreline, desert Ocean, shoreline, desert

8. Location - Chemical Oceans Oceans Lakes Lakes Example: Limestone Example: Limestone Ocean Ocean

9. Location - Organic Buried deep underground Buried deep underground Lots of former life Lots of former life Example: Coal Example: Coal Swamps, Antarctica? Swamps, Antarctica?

10. Sediment  Rock Compaction Compaction Buried deep = high pressure  reduction in size Buried deep = high pressure  reduction in size Cementation Cementation Water filters through, leaves cement behind Water filters through, leaves cement behind

11. Closer Get out ur phones! Get out ur phones! First 3 to txt me the correct answer will win a free hw pass! First 3 to txt me the correct answer will win a free hw pass! Here’s the Q… Here’s the Q…

12. …Q What are organic sedimentary rocks made of? What are organic sedimentary rocks made of? 970-270-7489, txt now!!! 970-270-7489, txt now!!!