how deep do i need to drill down to reach a temperature of 247degree's centergrade?

Question

I would like to know the temperature's of the earth's tectonic plate's at a deapth of 5,5.5,6,6.5,7,7.5,8,8.5miles.

Answer 1

The average temperature gradient for continental crust is 30ºC/km. You will need to convert each of your mile measurements to kilometers, multiply by 30 and add that to the average surface temperature in your area. In the northeast United States, the average surface temperature is 10ºC.

Answer 2

If you're drilling in a volcano, not very far!

The measure of how the temperature in the Earth increases with depth is called the geothermal gradient. The Earth’s temperature always increases with depth, but the amount of increase with temperature depends on which layer of the Earth you are at (how deep). The Earth has three main layers (like an onion): the crust, the mantle and the core. The thickness of the crust depends on whether you are on a continent, where the crust can get up to 200 km (124 miles) thick, or on the oceanic crust, where the crust may only be 100 km (62 miles) thick at the most.

The temperature is always increasing with depth, but it increases at a different rate depending on the layer of the Earth. So, in the upper part of the Earth’s crust, the temperature is increasing at about 25 degrees Celsius per kilometer (or 72 degrees Fahrenheit per mile). Within the Earth’s mantle, the geothermal gradient is pretty much constant.

Temperatures at the surface of the earth are controlled by the Sun and the atmosphere, except for areas such as hot springs and lava flows. From shallow depths to about 200 ft (61 m) below the surface, the temperature is constant at about 55°F (11°C). In a zone between the near surface and about 400 ft (122 m), the gradient is variable because it is affected by atmospheric changes and circulating ground water. Below that zone, temperature almost always increases with depth. However, the rate of increase with depth (geothermal gradient) varies considerably with both tectonic setting and the thermal properties of the rock.

High gradients (up to 11°F/100 ft, or 200°C/km) are observed along the oceanic spreading centers (for example, the Mid-Atlantic Rift) and along island arcs (for example, the Aleutian chain). The high rates are due to molten volcanic rock (magma) rising to the surface. Low gradients are observed in tectonic subduction zones because of thrusting of cold, water-filled sediments beneath an existing crust. The tectonically stable shield areas and sedimentary basins have average gradients that typically vary from 0.82–1.65°F/100 ft (15–30°C/km).

Answer 3

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Answer 4

Geothermal gradients vary from area to area, depending largely upon the distance to the mantle, a volcano or some other heat source. So, it's necessary to know where you are before the depth of the 247 degree can be calculated.

The average global geothermal gradient is 0.02 K/m. (That's degrees Kelvin per meter)

Answer 5

I know it varies geographically, and depends on the formation of the earth in that location. I work for a company that drills oil wells in the north see, our drilling tools have recorded temperatures of up to 154oC at approximately 6000ft deep.

Answer 6

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Answer 7

Every 1000 feet depth there will be an increase of one degree centigrade. It is a thumb rule. It may vary from place to place slightly.

Answer 8

dig a hole up to your head hight jump in.

then i will chuck a petrol bomb im with you. it will acheave the same effect.