The image above represents bourger correction. To calculate bourger correction, three essential parameter are needed and these parameters are Gravitational Constant (G), Density of the Material (ρ) and Height at Measured Point above Sea Level (h).
The formula for calculating bourger correction:
δgB = 2πGρh
Where:
δgB = Bouguer Correction
G = Gravitational Constant
ρ = Density of the Material
h = Height at Measured Point above Sea Level
Let’s solve an example;
Find the bourger correction when the gravitational constant is 6.67E-11, the density of the material is 24 and the height at measured point above sea level is 18.
This implies that;
G = Gravitational Constant = 6.67E-11
ρ = Density of the Material = 24
h = Height at Measured Point above Sea Level = 18
δgB = 2πGρh
δgB = 2π(6.67e-11)(24)(18)
That is, δgB = 2π(2.88144e-8)
δgB = 1.81e-7
Therefore, the bourger correction is 1.81e-7 mGal.
Calculating the Density of the Material when the Bourger Correction, the Gravitational Constant and the Heigth at Measured Point above Sea Level are Given
ρ = δgB / 2πGh
Where;
ρ = Density of the Material
δgB = Bouguer Correction
G = Gravitational Constant
h = Height at Measured Point above Sea Level
Let’s solve an example;
Find the density of the material when the bourger correction is 22, the gravitational constant is 6.67E-11 and the height at measured point above sea level is 15.
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This implies that;
δgB = Bouguer Correction = 22
G = Gravitational Constant = 6.67E-11
h = Height at Measured Point above Sea Level = 15
ρ = δgB / 2πGh
ρ = 22 / 2π (6.67e-11)(10)
Then, ρ = 22 / 2π x 6.67e+11
ρ = 22 / 4188760000000
ρ = 5.25e-12
Therefore, the density of the material is 5.25e-12.
Read more: How to Calculate and Solve for Gravitational Acceleration | Gravity
Calculating the Height at Measured Point above Sea Level when the Bourger Correction, the Gravitational Constant and the Density of the Material are Given
h = δgB / 2πGρ
Where;
h = Height at Measured Point above Sea Level
δgB = Bouguer Correction
G = Gravitational Constant
ρ = Density of the Material
Let’s solve an example;
Find the height at measured point above sea level when the bourger correction is 32, the gravitational constant is 6.67E-11 and the density of the material is 10.
This implies that;
δgB = Bouguer Correction = 32
G = Gravitational Constant = 6.67E-11
ρ = Density of the Material = 10
h = δgB / 2πGρ
So, h = 32 / 2π (6.67e-11)(10)
h = 32 / 4188760000000
h = 7.639e-12
Therefore, the height at measured point above sea level is 7.639e-12.
How to Calculate Bouguer Correction Using Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the bourger correction.
To get the answer and workings of the bourger correction using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Geology under Add-on.
Now, Click on Gravity under Geology
Now, Click on Bourger Correction under Gravity
The screenshot below displays the page or activity to enter your values, to get the answer for the bourger correction according to the respective parameters which are the Gravitational Constant (G), Density of the Material (ρ) and Height at Measured Point above Sea Level (h).
Now, enter the values appropriately and accordingly for the parameters as required by the Gravitational Constant (G) is 6.67e-11, Density of the Material (ρ) is 24 and Height at Measured Point above Sea Level (h) is 18.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the bourger correction and presents the formula, workings and steps too.
