BRV is just the volume of the container of sand, therefore once you have the areal extent (A) and the height (h), you multiply these two to get the BRV. Programs can determine this for you depending on the tops and base picks of the sand - perhaps from logs. SeisWorks is a good example of a program that does this. Once in my MSc. class we did it by hand by actually printing a gridded map view of the reservoir, counting the blocks and finding the areal extent that way, and taking the heights from available well logs. Hope this helps
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Bulk rock volume is calculated by multiplying the rock's length, width, and height together. This formula is commonly used for irregularly shaped rocks that cannot be measured with simple geometric calculations. It is important to measure the dimensions accurately to get an accurate volume calculation.
To calculate dry density from the weight of wet sediment, you need to first determine the volume of the wet sediment. You can do this by dividing the weight of the wet sediment by the bulk density of the sediment. Once you have the volume of the wet sediment, you can then calculate the dry density by dividing the weight of the wet sediment by the volume of the wet sediment.
To find the density of a rock, measure its mass using a scale and its volume using displacement method or geometric calculations. Then, divide the mass by the volume to calculate the density of the rock. Density is typically expressed in units such as grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³).
The bulk density of magnetite can be calculated using the formula: Bulk Density = (mass of material) / (volume of material). This formula involves measuring the mass of the magnetite sample and calculating its volume to determine the bulk density.
You can approximate the volume of the irregularly shaped rock by submerging it in water and measuring the volume of water displaced. Alternatively, you can use a 3D scanner to create a digital model and calculate the volume from there. Keep in mind that these methods may not be entirely accurate due to the irregular shape of the rock.
The bulk of the Earth is composed of rock.