Question

Can u answer this questions please?

Answer the following questions after you have recorded llof tables and plotted the data. recorded all of the data in the 1. Using your data, plot Q/A va. dhidi. For some materials, you will h ve y dat points on your graph, whereas for other materials you may have Onlyoints follow points. Discuss, briefly, the meaning of these graphs -do your ill have several data any relationship or trend? If so, what does the trend teli your data points follow Describe the relationship between sediment grain size and porosity and between sediment sorting and porosity. 2. Describe the relationship between sediment grain size and permeability and between sediment sorting and permeability. Is this behavior different than for porosity? Why? 3. 4 What is the relationship between sediment grain size/sorting and recoverability of water? Why might this be true? What would happen if you performed this experiment with clay? 15

Answer 1

Ans 1 .

Ans 2 relationships between sediment grain size and porosity

Theoratically grain size should not effect porosity but it is noticed that higher is the grain size , higher will be the porosity. But higher is the grain size more will be the grains havimghpoint to point contact and more will be the porosity and vice versa.

Yes this behaviour is quite different than that of porosity beacuse number of connected pores forms permeability snd that does not depend on anything .

Relationship between Sediment sorting and porosity

Sorting is the distribution of grain size ,eithee in unconsolidated sediments or in consolidated sedimentary rocks. Porosity is the space between these grains either connected or not, once connected this is called the permeability. Poorly sorted sediments tend to have less porosity than that of well sorted one irrespective of grain size. The behind this is the inter grain space in case of ill sorted sediments is occupied by the smaller grains and hence decreasing the porosity and vice versa.

3) Relationship between sediment grain size and permeability and sediment sorting and permeability

Permeability is the number of intercimnected pores sediment grain size often does not effect the permeability because whatever be the size the number of connected pores will be same . But actually this pore concentration depends on size , and hence higher the size , higher eill be the porosity but permeability depends on their connection.

Sediment sortumg definitely effects permeability beacuse I'll sorted sediment having sediments of all size will blovkbthe connectivity of pores and hence reducing the porosity while in well sorted sediments whatever pores will be there, the will be interconnected.

4) Relationship between sediment/ grain size sorting and recoverability of water.

Well sorted sediments will have more porosity and permeability and hence more recoverability of water.

If this experiment would have been performed with clay then porosity would have been more while usable water nad water recoverability would have been less. Beacuse clay is an aquitard ,that is theri specific retention is more but speciaficyield is less due to the grain size and less permeability of clays. Less permeability of clay is due to the fact that grains in clays use to hacehline contact and hence decreasing the permeability and acting as aquitard .