Geology Coursework Research Paper I Essay

Geology Coursework Essay, Research Paper

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behavior an experiment to happen the porousness of different stones. The porousness of

a stone is how much H2O it can keep, or the volume of air spreads that it has. To

make this experiment I will soak different stones in H2O and step the

differences. The equation for the porousness, expressed as a fraction is Ten 100 VOLUME OF PORE SPACE TOTAL VOLUME OF ROCK? ? ? ? ? ? ? ? There are rather a batch of

factors impacting the porousness of stones. They include the undermentioned: Grain size If the grains are big so there is more likely to be bigger spreads in which H2O can acquire into.Sorting If the grains are non good sorted so the smaller grains fill in the spreads that the large 1s have left. If the stone is good sorted so there is more likely to be larger gaps.Grain form There are tonss of different forms that the grains can be. If the are irregular, so they will be given to mesh and there will be less spreads, but if they are rounded so there will be more gaps.Degree of compression If the stone was under a batch of force per unit area when it was formed so it is more likely to hold all the spreads squashed out. If it was formed under high force per unit area so it may be impermeable, in which instance this experiment will hold no consequence on it.Amount and type of cement. Normally the cement is impermeable so if there is a batch of cement so the will be much less infinite for the H2O to travel. Method? ? ? ? ? ? ? ? The method that I am

traveling to utilize is to soak the selected stone in H2O for at least 24 hours to

do absolutely certain that all of the H2O had gone into the stone. Then I must

take it out and pass over off the surface H2O to do certain that that does non give

me a false weight. Then I will weigh it to an appropriate truth of 0.1g.

Then to work out how much H2O had been gained I will necessitate to dry it in an

oven doing certain that there is a hole to allow the wet out of. A practical

clip for go forthing this in the oven is for 24 hours. Then I must weigh the prohibitionist

stone. After this I will make full a supplanting can with H2O merely up to the


hole and put the stone into it, and so mensurate the H2O that has been

displaced. ? ? ? ? ? ? ? ? There are some jobs

that I will likely encounter. When I soak the stone, if the stone merely has

bubbles in an impermeable stone so if these bubbles do non associate up I will non

be able to acquire H2O into the infinites. Besides on stone like that it will be difficult to

merely pass over off the surface H2O without taking H2O that has really been

soaked up. Besides when I soak the stones it will be really difficult to acquire out air

bubbles, halting some of the H2O acquiring in, out. When I dry the stone it

will be really difficult to acquire rid of all of the H2O and to do certain that none of

it falls back onto the stone as condensation. ? ? ? ? ? ? ? ? The equipment provided

is below: Beaker of H2O Electronic balance Measuring cylinder Displacement can Oven Gloves Safety gogglesThe computation that I have to make is below W1 = Weight of concentrated stone W2 = Weight of dry stone This means that W1? W2 gives the weight of H2O taken in by the stone.

This gives the volume of H2O as 1g of H2O is 1cm3. Let V = the entire volume of the stone. W1-W2? ? ? V POROSITY = ? ? ? ? ? ? ? ? ? ? ? ? x 100The stones that I will be utilizing are Red Sandstone, Chalk and Vesicular

Basalt. The vesicular basalt is a stone that is impermeable but has big holes

from bubbles left in it. The sandstone and chalk are both stones that should

easy soak up the H2O. ? ? ? ? ? ? ? ? After I have done the

experiment I could look at the single grains of stone under a microscope to

see the different forms and sorting and other variables that I mentioned

earlier. ? ? ? ? ? ? ? ? For professional

geologists, it is really of import to cognize what the porousness of stones is. The

information can be used to happen where gas or oil supplies may be as they will lift

through the pores in the stone. Besides it is of import to cognize the porousness of the

stone when constructing a reservoir, or when dumping atomic or toxic waste to do

Sue it doesn? t leak into any H2O supplies.

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