Relative Percentages of Sedimentary Rocks... Biochemical- Organic remains shells, charcoal, plant fragments... CLASTIC Detrital ROCKS Breccia and Conglomerate > 2mm Sedimentary Bre
Trang 1SEDIMENTS &
SEDIMENTARY ROCKS
Trang 2ROCK CYCLE
Trang 3Relative Percentages of
Sedimentary Rocks
Trang 4 Weathering & Erosion
Precipitation from saturated solution
Trang 13 Lithification
Compaction
Decrease in pore space
Trang 15 Lithification
Compaction
Decrease in pore space
Trang 17 Lithification
Compaction
Decrease in pore space
Trang 19 Biochemical- Organic remains
shells, charcoal, plant fragments
Trang 20CLASTIC (Detrital) ROCKS
Breccia and Conglomerate (> 2mm)
Sedimentary Breccia- angular fragments
Conglomerate- rounded fragments
Trang 23CLASTIC (Detrital) ROCKS
Breccia and Conglomerate (> 2mm)
Sedimentary Breccia- angular fragments
Conglomerate- rounded fragments
Trang 24Quartz Sandstone
Trang 34BIOCHEMICAL SEDIMENTARY ROCKS
Trang 36BIOCHEMICAL SEDIMENTARY ROCKS
Trang 40SEDIMENTARY STRUCTURES
Trang 43SEDIMENTARY STRUCTURES
Trang 44DUNES
Trang 47SEDIMENTARY STRUCTURES
Trang 50SEDIMENTARY STRUCTURES
Trang 51Mudcracks
Trang 55SEDIMENTARY STRUCTURES
Trang 60 Large enough to show on a map
Distinctive from neighboring rock units
Named after geographic locations
CONTACT
separation between 2 distinct rock units
Sedimentary contact
Other contacts
Trang 62INTERPRETATION OF SEDIMENTARY ROCKS
River channel and flood plain
Interbedded shales and sandstones; cross-bedded
Lake
Shales; interbedded siltstones and mudstones
Delta
Trang 64INTERPRETATION OF SEDIMENTARY ROCKS
River channel and flood plain
Interbedded shales and sandstones; cross-bedded
Lake
Shales; interbedded siltstones and mudstones
Delta
Trang 66Glacial Environment & Till
Trang 69INTERPRETATION OF
SEDIMENTARY ROCK
Environment of Deposition
Beach, Barrier Island, Dune
Very well sorted quartz sandstones
Lagoon
Shales
Shallow marine shelf
Interbedded sandstones and shales; burrowed
Reef
Skeletal Limestones
Trang 71INTERPRETATION OF
SEDIMENTARY ROCK
Environment of Deposition
Beach, Barrier Island, Dune
Very well sorted quartz sandstones
Lagoon
fine grained sediment
Shallow marine shelf
Interbedded sandstones and shales; burrowed
Reef
Skeletal Limestones
Trang 74CALCAREOUS
Trang 77INTERPRETATION OF
SEDIMENTARY ROCK
Environment of Deposition
Beach, Barrier Island, Dune
Very well sorted quartz sandstones
Lagoon
Shales
Shallow marine shelf
Interbedded sandstones and shales; burrowed
Reef
Skeletal Limestones
Trang 80INTERPRETATION OF SEDIMENTARY ROCK
Plate Tectonics and Sedimentary Rocks
At convergent boundaries
Uplift results in
At transform boundaries
Rapid rates of erosion, deposition and burial
Good basins for petroleum exploration
At divergent boundaries
Initial stages of rifting- thick wedges of gravel and coarse sediment
Trang 82Formation of Oil and Gas
Trang 87U.S Coal Production