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Metallogenic Mechanism and Tectonic Setting of Tungsten Mineralization in the Yangbishan Deposit in Northeastern China
scheelite Yangbishan iron–tungsten deposit Early Paleozoic late Pan-African period Central Asian Orogenic Belt
2018/4/10
The Yangbishan iron–tungsten deposit in the Shuangyashan area of Heilongjiang Province is located in the center of the Jiamusi Massif in northeastern China. The rare earth element and trace element co...
Evolutionary divergence in the feeding mechanism of fishes
Elasmobranchii Teleostomi Suction feeding Jaw mechanism
2009/10/20
After the divergence of chondrichthyans and teleostomes, the structure of the feeding apparatus also diverged.Hyoid morphology varies considerably among fossil and extant elasmobranchs and has been hy...
