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| What are the basic types of rivers? |
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Definition
| Meadndering, distributary, braid. Meandering looks a bit like a sine wave. Distributary looks like a tree branch. Braided with rivers and island in between literally looks like girl's braided hair. |
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| How does lateral accretion take place in each kind of river? |
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| Why is the vertical texture trend in point pars fine upward? |
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Term
| Why do braided streams have no levees? |
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Definition
| they're mostly associated with meandering |
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Term
| How does sand and mud affect geometry and disposition? Also, beload vs suspended load. |
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| depoistional feature made of sand and gravel that accumaltes on the inside bend of streams and rivers below the slip off slope. crescent shape. well sorted sediment, gentle slope found mainly in meandering streams |
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Definition
| elongated naturally occuring ridge that is paralell to the course of a river. it forms when meandering rivers carrying lots of suspended sediment (sand silt mud) flood and sediment which is in water that is over the banks of the river settle out. |
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| forms when a stream breaks its levees and deposits sediment on a flood plain. looks like an alluvial fan. creates graded deposits. in some cases river abandons its old channel |
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| Fluvial (elongate and lobate), wave dominated, tide dominated. |
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Term
| Importance of channel mouth bar |
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Definition
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Term
| Formation of distributaries |
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Definition
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Term
| Importance of sediment caliber |
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Definition
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Term
| sand rich vs mud rich deltas |
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Definition
| Wave dominated= 50% mud 50% sand |
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Term
| process of progradation. how does it work, result? |
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Definition
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Definition
| Part of a delta lying beyond the delta front, and sloping gently down to the basin floor. entirely below water level. |
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| plain formed by deposition of silt at the mouth of a stream or by overflow along |
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Term
| Type of river systems associated with deltas |
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Definition
| For lobate delta: ditributary. |
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