Question

What is Hilt's Law ?​

Answer 1

Explanation:

HILT'S LAW

A generalization that states that, in a vertical sequence at any given point in the coalfield, the rank of the coal of the successive seams rises with increasing depth. Although this statement is generally true, there are numerous departures from it.

Answer 2

Answer:

Hilt's law is a geological term that states the deeper the coal, the higher its rank. The law holds true if the thermal gradient is entirely vertical, but metamorphism may cause lateral changes of rank, irrespective of depth. Increasing depth of burial results in a decrease in the oxygen content of the coals.