Wentworth's Clastic Scale

Clay

• Clay Mineral
• Clay Size

Factors of Transport

1. Rounding
2. Sorting

Deposition

Lithification

1. Compaction
2. Cementation
3. Crystallization

Types of Sedimentary Rocks

1. Clastic Sedimentary Rocks
2. Biogenic Sedimentary Rocks
3. Chemical Sedimentary Rocks

Clastic Sedimentary Rocks

1. Conglomerate
2. Breccia
3. Sandstones
   1. Quartz Sandstone
   2. Arkose
   3. Graywacke
4. Shale

1. Limestone
   1. Biogenic Limestones
      1. Fossiliferous Limestone
      2. Coquina
      3. Chalk
   2. Chemical
      1. Oolitic Limestone
      2. Micrite
         • Lithographic Limestone
2. Dolostones
   1. primary
   2. secondary
      • Diagenetic
      • CaCO3 -> Mg,Ca (CO3)2

Chemical Sedimentary Rocks

1. Chert
2. Rock Salt
3. Rock Gypsum

Organic Sedimentary Rocks

Coal

1. Peat
2. Lignite
3. Bituminous Coal
4. (Anthracite Coal)

Sedimentary Structures

1. Bedding
2. Cross-bedding
3. Ripple Marks
   1. Symmetrical Ripples
   2. Asymmetrical Ripples
4. Graded Bedding
   • Turbidity Current
5. Mudcracks
6. Raindrop imprints
7. Fossil
   1. Trace fossil
   2. Body fossil

Depositional Environments

1. Marine
   1. Shallow marine
   2. Deep marine
   3. Reef
2. Shoreline
   1. Beach
   2. Barrier Island
   3. Lagoon
   4. Delta
   5. Tidal Flat
3. Continental
   1. Alluvial Fan
   2. Glacial
   3. Lacustrine
   4. Fluvial
   5. Eolian

Sea Level Changes

1. Transgression
2. Regression