Distinguish between Alluvial plane and Lacustrine plain
Answers
Answer:
alluvial is pertaining to the soil deposited by a stream while lacustrine is of or relating to lakes.
Explanation:
Alluvial plain
A small, incised alluvial plain from Red Rock Canyon State Park (California).
An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms. A floodplain is part of the process, being the smaller area over which the rivers flood at a particular period of time, whereas the alluvial plain is the larger area representing the region over which the floodplains have shifted over geological time.
As the highlands erode due to weathering and water flow, the sediment from the hills is transported to the lower plain. Various creeks will carry the water further to a river, lake, bay, or ocean. As the sediments are deposited during flood conditions in the floodplain of a creek, the elevation of the floodplain will be raised. As this reduces the channel floodwater capacity, the creek will, over time, seek new, lower paths, forming a meander (a curving sinuous path). The leftover higher locations, typically natural levees at the margins of the flood channel, will themselves be eroded by lateral stream erosion and from local rainfall and possibly wind transport if the climate is arid and does not support soil-holding grasses. These processes, over geologic time, will form the plain, a region with little relief (local changes in elevation), yet with a constant but small slope.
Lacustrine plain
A lacustrine plain or lake plain is a lake basin that has been filled by sediment. Over time, as water drains or evaporates from the lake, the deposited sediments are left behind, resulting in a level plain of land where the lake once existed. In some regions, the deposition of sediments in lacustrine deltas follow an increasing gradient of coarseness, which refers to the sediments' grain size, starting from the finest, silt. The process of water drainage can be caused by natural drainage, evaporation or other geophysical processes. The soil of the plain may constitute fertile and productive farmland due to the previous accumulation of lacustrine sediments; in other cases, it may become a wetland or a desert.
Answer:
alluvial is pertaining to the soil deposited by a stream while lacustrine is of or relating to lakes.
Explanation:
Alluvial plain
A small, incised alluvial plain from Red Rock Canyon State Park (California).
An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms. A floodplain is part of the process, being the smaller area over which the rivers flood at a particular period of time, whereas the alluvial plain is the larger area representing the region over which the floodplains have shifted over geological time.
As the highlands erode due to weathering and water flow, the sediment from the hills is transported to the lower plain. Various creeks will carry the water further to a river, lake, bay, or ocean. As the sediments are deposited during flood conditions in the floodplain of a creek, the elevation of the floodplain will be raised. As this reduces the channel floodwater capacity, the creek will, over time, seek new, lower paths, forming a meander (a curving sinuous path). The leftover higher locations, typically natural levees at the margins of the flood channel, will themselves be eroded by lateral stream erosion and from local rainfall and possibly wind transport if the climate is arid and does not support soil-holding grasses. These processes, over geologic time, will form the plain, a region with little relief (local changes in elevation), yet with a constant but small slope.
Lacustrine plain
A lacustrine plain or lake plain is a lake basin that has been filled by sediment. Over time, as water drains or evaporates from the lake, the deposited sediments are left behind, resulting in a level plain of land where the lake once existed. In some regions, the deposition of sediments in lacustrine deltas follow an increasing gradient of coarseness, which refers to the sediments' grain size, starting from the finest, silt. The process of water drainage can be caused by natural drainage, evaporation or other geophysical processes. The soil of the plain may constitute fertile and productive farmland due to the previous accumulation of lacustrine sediments; in other cases, it may become a wetland or a desert.
Explanation: