Zircon Chemistry and Oxidation State of Magmas for the Duobaoshan-Tongshan Ore-Bearing Intrusions in the Northeastern Central Asian Orogenic Belt, NE China

Zircon Chemistry and Oxidation State of Magmas for the Duobaoshan-Tongshan Ore-Bearing Intrusions in the Northeastern Central Asian Orogenic Belt, NE China

The Duobaoshan (DBS)-Tongshan (TS) porphyry Cu–(Mo) deposit (4.4 Mt Cu, 0.15 Mt Mo) is located in the northeastern part of the central Asian orogenic belt (CAOB) in northeastern China. It is hosted by early Ordovician dioritic to granodioritic intrusions which are characterized by the subduction-rel...

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Veröffentlicht in:Minerals (Basel) 2021-05, Vol.11 (5), p.503
Hauptverfasser: Wang, Jian, Hattori, Keiko, Yang, Yanchen, Yuan, Haiqi
Format: Artikel
Sprache:eng
Schlagworte:
Anomalies
Belts
Carboniferous
Ce and Eu anomalies
Cerium
Composition
Copper
Diorite
Earth mantle
Fertility
Geochemistry
Geology
Gold
Igneous rocks
Isotopes
Lava
Low concentrations
Magma
magma fertility
magma oxidation state
Mesozoic
Metallogenesis
Mineralization
Molybdenum
Neodymium
Ordovician
ore-bearing intrusion
Orogeny
Oxidation
Porphyry copper
porphyry Cu-(Mo) deposit
Quartz
Rare earth elements
Signatures
Subduction
Trace elements
Valence
Yttrium
Zircon
zircon trace elements
Zirconium
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Zusammenfassung:The Duobaoshan (DBS)-Tongshan (TS) porphyry Cu–(Mo) deposit (4.4 Mt Cu, 0.15 Mt Mo) is located in the northeastern part of the central Asian orogenic belt (CAOB) in northeastern China. It is hosted by early Ordovician dioritic to granodioritic intrusions which are characterized by the subduction-related geochemical signatures including high concentrations of large ion lithophile elements (LILEs) and light rare earth elements (LREEs), and low concentrations of heavy REEs (HREEs) and high-field -strength elements (HFSEs), such as Nb, Ta, Zr and Ti in bulk rock compositions. Furthermore, they show adakitic geochemical signatures of high Sr/Y ratios (29~55) due to high Sr (290~750 ppm) and low Y (
ISSN:2075-163X
2075-163X
DOI:10.3390/min11050503