neoplasm
发表于 2025-3-30 09:54:40
The World’s Major Types of Tin Depositided in the paper, are:.The characteristics of the economically important types of deposit within each of these groups are provided, and the observations are supported by reference to specific deposits which have been selected, as far as possible, from those with which the writer has personal experience.
是突袭
发表于 2025-3-30 15:04:49
The Geochemistry of Granitoid-Related Deposits of Tin and Tungsten in Orogenic Beltstouring the anomalies. The applied procedure proves an effective and rapid aid in recognizing mineralized situations on the local scale. A preliminary survey of samples from Bangka and Belitung shows similar geochemical trends to be present in the Triassic-Jurassic-Cretaceous granite belt of Southeast Asia.