Silt

Egyptians knew approximately when it would flood, unlike the Sumerians. The Egyptians referred to the Nile as a gift. When the Nile would flood, it would deposit a rich type of fertile, black mud called silt. Peasants would then collect the silt and prepare the wheat and barley fields. Due to the silt deposit, peasants were able to plant more wheat and barley crops creating a tremendous surplus which would then be traded throughout the world.…

gator pond retention area. Testing was done every half chain, for a distance of 528 feet to the north/south, 16 lines. Plots to the east/west where done until the water no longer flowed into the water shed. Data collected included, amounts of sand silt and clay, the amount of gravel, and dominate and co-dominate species in a 4 foot radius and the density of each plot. Each line of plots and testing were test by different individuals and then data was put onto an excel spread sheet to compare the…

Harnessing Hydroelectricity To harness energy from flowing water, the water must be controlled. A large reservoir is created, usually by damming a river to create an artificial lake, or reservoir. Water is channeled through tunnels in the dam. The energy of water flowing through the dam's tunnels causes turbines to turn. The turbines make generators move. Generators are machines that produce electricity. Hydroelectricity relies on water, which is a clean, renewable energy source. A renewable…

The Australian myth by Pund-jel, the Creator, started out by cutting three large sheets of bark with a big knife. He then formed a human, he first made the feet, then the legs, then the trunk, the arms, and the head. He made a clay man for each of the pieces of bark and began to dance round them to bring joy. Next he took bark from a eucalyptus tree and made hair to stick on the heads of the clay men. He then laid them down, blew his breath hard into their mouths, their noses, and their navels…

It is vital to understand the difference between cohesive and non-cohesive subsoils as described in the assignment scenario. Non-Cohesive Non-cohesive subsoils are sandy in nature and they present less of a problem for building on. They are composed mainly of sand and gravel, and they are closely compacted together which means that they are not affected by water. Therefore, their load bearing capacity does not change with the various seasons, summer or winter, drought or flood, it makes no…

Stonehouse pond was observed to be igneous rock, with evidence of batholith, an igneous specific type of intrusion that spans for miles at a time. This is evident in figure 8. Various minerals and a grainy texture were also observed. Because of this, and identification of minerals such as quartz, as observed in figure 6, and orthoclase, in figure 9, this rock was concluded to be the igneous rock, granite. Granite forms when magma under the Earth slowly crystallizes. Igneous rock forms when…

The Nile really affected settlement. They all settled near floodplains for the rich soil and silt. The silt helped them grow, harvest, and plant crops. They most commonly planted flax, wheat, barley, figs, melons, pomegranates, and dates. The silt very much so helped nourish the plants. But the downside about this floodplain is every year the must harvest every food to so they could eat during the flood season. Survival…

Crumbles No smear Few nutrients Dries quickly Does not hold water well Silt Just enough big to see them with a magnifying glass. Not as heavy as sand but heavier than clay Holds together, feels smooth and powdery Holds together, moderate crumbling, cannot be rolled in a strand Some smear More nutrients than sand Takes a longer time to dry. Holds water better than sand. Clay You need a microscope to see them. Ligther than sand and silt. Feels slippery or sticky and breaks into hard clumps Holds…

Introduction In a marsh environment, it can be assumed by many that the studied environment exhibits a descending pattern as the land meets the ocean in a liminal boundary. This hypothetical descending pattern is both literal – an idea of where the elevation of the land decreases as the marsh reaches towards the marsh front, and figurative – that data taken from sample sites at the marsh such as pH, amount of organic matter deposited within the soil, and amounts of specific sediments deposited…

underlying layers that consisted of silt and sand mixed in with water. During the 2010 Canterbury earthquake these layers of silt and sand were shaken and stirred up, liquefaction occurred in some areas but was mild in comparison to the Christchurch earthquake. As a result of the previous earthquake, the liquefaction process occurred at a more significant extent, the silt and sand had already been disturbed, so the second time around when the ground shook, sodden silt rose from cracks in the…