Hilt's law
http://dbpedia.org/resource/Hilt's_law
Hilt's law is a geological law that states the deeper the coal, the higher its rank (grade). 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. The phenomenon was observed by professor Carl Hilt (1873).
rdf:langString
rdf:langString
Hilt's law
xsd:integer
30697737
xsd:integer
1046647148
rdf:langString
Hilt's law is a geological law that states the deeper the coal, the higher its rank (grade). 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. The phenomenon was observed by professor Carl Hilt (1873).
xsd:nonNegativeInteger
839