What changes to Earth’s surface could explain the fact that there is coal in Alaska?

During the 1960's the disclosure of enormous gas and oil fields in Alaska accelerated the change of most coal framework to other petroleum products. During this period Usibelli Coal Mine bought the Suntrana mine and the mining activities in the Matanuska coal fields stopped activity.

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bratislava bratislava · Answer 2 · 2021-10-21T13:22:47+02:00

Earlier the earth was in the shape of a large super landmass called Pangaea that got separate. Due to some changes in tectonic plates that cause splitting and opening of boundaries.

The Alaskan region of the united states accounts for vast amounts of coal. A major region of the earth's coal reserve has remained deep buried inside the earth. The first small-scale mining began in 1850, in the Usibelli coal mine. Taking out 1.5 -2 million tonnes of coal per year.

Alaska claims that it has 5.1 trillion tonnes of coal reserves. Tells about the geology of the underground deposits and metamorphic rocks. hence the occurrence of gondwana deposits.

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