The image above represents actual mass of geological body. To calculate actual mass of geological body three essential parameters are needed and these parameters are **Total Anomalous Mass (M _{E}), Anomalous Density of the Body (ρ_{1}) **and

**Host Rock Density (ρ**

_{0}).**The formula for calculating actual mass of geological body:**

M = M_{E} (^{ρ1} / _{ρ1 – ρ0})

Where:

M = Actual Mass of Geological Body

M_{E} = Total Anomalous Mass

ρ_{1} = Anomalous Density of the Body

ρ_{0} = Host Rock Density

Let’s solve an example;

Find the actual mass of geological body when the total anomalous mass is 12, anomalous density of the body is 21 and the host rock density is 13.

This implies that;

M_{E} = Total Anomalous Mass = 12

ρ_{1} = Anomalous Density of the Body = 21

ρ_{0} = Host Rock Density = 13

M = M_{E} (^{ρ1} / _{ρ1 – ρ0})

M = 12 (^{21} / _{21 – 13})

That is, M = 12 (^{21} / _{8})

M = 12 (2.625)

M = 31.5

Therefore, the **actual mass of geological body **is **31.5 kg.**

**Calculating the Total Anomalous Mass when the Actual Mass of Geological Body, the Anomalous Density of the Body and the Host rock Density are Given**

M_{E} = ^{M} / _{(ρ1 / ρ1 – ρ0)}

Where;

M_{E} = Total Anomalous Mass

M = Actual Mass of Geological Body

ρ_{1} = Anomalous Density of the Body

ρ_{0} = Host Rock Density

Let’s solve an example;

Find the total anomalous mass when the actual mass of geological body is 45, the anomalous density of the body is 12 and the host rock density is 10.

This implies that;

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M = Actual Mass of Geological Body = 45

ρ_{1} = Anomalous Density of the Body = 12

ρ_{0} = Host Rock Density = 10

M_{E} = ^{M} / _{(ρ1 / ρ1 – ρ0)}

M_{E} = ^{45} / _{(12 / 12 – 10)}

So, M_{E} = ^{45} / _{(12 / 2)}

M_{E} = ^{45} / _{6}

M_{E} = 7.5

Therefore, the **actual mass of geological body **is **7.5 kg.**

Read more: How to Calculate and Solve for Total Mass Determination | Gravity

**How to Calculate Actual Mass of Geological Body Using Nickzom Calculator**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the actual mass of geological body.

To get the answer and workings of the actual mass of geological body 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 **Actual Mass of Geological Body** under **Gravity**

The screenshot below displays the page or activity to enter your values, to get the answer for the actual mass of geological body according to the respective parameters which are the **Total Anomalous Mass (M _{E}), Anomalous Density of the Body (ρ_{1}) **and

**Host Rock Density (ρ**

_{0}).Now, enter the values appropriately and accordingly for the parameters as required by the **Total Anomalous Mass (M _{E})** is

**12, Anomalous Density of the Body (ρ**is

_{1})**21**and

**Host Rock Density (ρ**is

_{0})**13**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the actual mass of geological body and presents the formula, workings and steps too.

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