Coal deposits are largely preserved, as is commonly known, in certain structural depressions. In folded regions, coal is usually found in synclinal basins; for
The following paragraphs are the harvest of a geological investigation madeduring the spring of 1939 in the province of Kueichow comprising Kueiyang,Lungli, Ku
The map of the Tarim basin and its mountainous border regions rough-ly indicates the distribution of the supposed Eocene sediment and the extensionof the princ