@inbook{5f0857d4ae5745ad83a31d86bc9289ae,
title = "Porphyry Mo Deposits",
abstract = "So far, the metamorphic hydrothermal or orogenic-type Mo deposits have been reported only in Qinling Orogen. Except for the 430-Ma Yindonggou Mo project in North Qinling Accretion Belt and the ~1850-Ma Longmendian Mo deposit in the Xiong{\textquoteright}er Terrain, other orogenic-type Mo deposits occur in the northern margin of the Huaxiong Block and yield Triassic ages. The Waifangshan cluster includes ten swarms of structurally controlled Mo-quartz veins, as exemplified by the Zhifang deposit formed at depths of 10–12.5 km. The Dahu Au–Mo deposit includes a group of fault-controlled quartz veins. Triassic Mo mineralization occurred at a depth of ~11 km, associated with the northward subduction of the paleo-Tethys oceanic plate, and then overprinted by the Yanshanian gold mineralization (at depth of ~7.8 km) related to the collision between Yangtze and North China continents. The 1850-Ma Longmendian Mo deposit was formed during the assembly of the Columbia supercontinent. Orebodies are present as quartzofeldspathic veins or leucosome in migmatitic gneisses. Immiscible fluid inclusion assemblages suggest Mo mineralization at a depth of ~11 km. Hence, the orogenic-type Mo mineralization occurred at depths of >10 km, corresponding to the mesozonal-to-hypozonal class of the crustal continuum model.",
keywords = "Backarc compression-extension alternating, Metamorphic devolatilization, Orogenic-type Mo deposit, Quartz vein, Quartzofeldspathic vein, Syncollisional compression-to-extension transition",
author = "Nuo Li and Yang, {Yong Fei} and Laimin Zhu and Jing Li and Franco Pirajno and Chen, {Yan Jing}",
year = "2022",
month = jan,
day = "1",
doi = "10.1007/978-981-16-4871-7_3",
language = "English",
volume = "22",
series = "Modern Approaches in Solid Earth Sciences",
publisher = "Springer Science and Business Media B.V.",
pages = "159--361",
editor = "Chen, {YanJing } and Pirajno, {Franco } and Nuo Li and Deng, {XiaoHua } and Yang, {YongFei }",
booktitle = "Geology and Geochemistry of Molybdenum Deposits in the Qinling Orogen, P R China",
address = "Germany",
}