scholarly journals The Whole-Rock Geochemical Composition of the Wudaogou Group in Eastern Yanbian, NE China-New Clues to Its Relationship with the Gold and Tungsten Mineralization and the Evolution of the Paleo-Asian Ocean

2015 ◽  
Vol 65 (3) ◽  
pp. 232-248 ◽  
Author(s):  
Cong Chen ◽  
Yunsheng Ren ◽  
Hualei Zhao ◽  
Qun Yang ◽  
Xintong Zou
Keyword(s):  
Ne China ◽  
Geochemical Composition ◽  
Tungsten Mineralization ◽  
And Tungsten

Discovery of a Tin-tungsten Mineralization in Northern Khartoum Province, Sudan

1967 ◽  
Vol 104 (1) ◽  
pp. 1-12 ◽  
Author(s):  
D. C. Almond
Keyword(s):  
Northern Africa ◽  
Northern Nigeria ◽  
Igneous Complex ◽  
Sulphide Minerals ◽  
Quartz Veins ◽  
Primary Deposit ◽  
Tungsten Mineralization ◽  
Ring Dyke ◽  
And Tungsten

AbstractA primary deposit of tin and tungsten has been discovered in association with granites of the Cambrian (?) sub-volcanic igneous complex at Sabaloka, on the Nile north of Khartoum. Wolfram and cassiterite occur in a stockwork of quartz veins which also contain minor amounts of sulphide minerals. The stockwork centres around a small intrusion of primary greisen lying on the contact of a porphyritic microgranite ring-dyke but the greisen and mineralizing solutions are believed to have originated from a nearby mass of biotite-muscovite granite. The deposit has many features in common with the primary tin veins associated with the Younger Granites of northern Nigeria and other parts of northern Africa.

Age of Molybdenum and Tungsten Mineralization in Northern British Columbia

1972 ◽  
Vol 9 (12) ◽  
pp. 1727-1734 ◽  
Author(s):  
P. A. Christopher ◽  
W. H. White ◽  
J. E. Harakal
Keyword(s):  
British Columbia ◽  
Granite Porphyry ◽  
Property A ◽  
Eastern Margin ◽  
Upper Limit ◽  
Early Tertiary ◽  
Metallogenic Epoch ◽  
Tungsten Mineralization ◽  
And Tungsten

A K–Ar mean age of 49.8 ± 0.7 m.y. was determined for four biotite concentrates from granite porphyry on the Mt. Haskin Mo and Mt. Reed Mo–W properties east of Cassiar, British Columbia.Biotite K–Ar ages of 71.7 ± 2.6 m.y. and 68.3 ± 2.7 m.y. obtained from a young phase of the Cassiar intrusions, occurring along the eastern margin of the Cassiar Batholith, place an upper limit on the age of the molybdenum mineralization on the Cassiar Molybdenum property. A 62.0 ± 2.2 m.y. age, determined for a biotite concentrate from the coarse alaskite phase of the Mt. Leonard Boss, dates the molybdenum mineralization on the Adanac property.These ages suggest that the early Tertiary metallogenic epoch, documented in central British Columbia and southeastern Alaska, can be extended through northern British Columbia.

The Relationship between Radioactive Mineralization and Tungsten Mineralization in Shirenzhang Tungsten Deposit, North Guangdong

2014 ◽  
Vol 88 (s2) ◽  
pp. 67-68
Author(s):  
Minyue ZHOU ◽  
Fanqian KONG ◽  
Longming WEI ◽  
Mengjie CHEN ◽  
Li WANG ◽  
...  
Keyword(s):  
Tungsten Deposit ◽  
The Relationship ◽  
Tungsten Mineralization ◽  
And Tungsten

Petrogenesis and metallogenic potential of the Wulanba granite, southern Great Xing’an Range, NE China: constraints from whole-rock and apatite geochemistry

2019 ◽  
Vol 157 (3) ◽  
pp. 411-434 ◽  
Author(s):  
Yuan Liu ◽  
Si-Hong Jiang ◽  
Leon Bagas ◽  
Chun-Liang Chen ◽  
Ning Han ◽  
...  
Keyword(s):  
Trace Element Geochemistry ◽  
Ne China ◽  
Element Geochemistry ◽  
Geochemical Composition ◽  
Depleted Mantle ◽  
Type Granite ◽  
Late Neoproterozoic ◽  
Early Palaeozoic ◽  
A Minor ◽  
Great Xing’An Range

AbstractThe Wulanba granite, consisting of biotite monzogranite and syenogranite, is located in the southern part of the Great Xing’an Range, NE China. Whole-rock major- and trace-element geochemistry suggests the Wulanba granite is a high-K–shoshonitic, slightly peraluminous and highly differentiated I-type granite. The Sr–Nd–Hf isotopes indicate that it originated from partial melting of juvenile crust derived from the depleted mantle with a minor input of old crust. The relatively young T2DM and tDM2 ages indicate it was most likely derived from a Late Neoproterozoic to Early Palaeozoic source. We have demonstrated that the biotite monzogranite is the ore-related intrusion of the Haobugao Zn–Fe mineralization based on the following geological, geochronological and geochemical evidence: (1) the chalcopyrite/pyrite in the biotite monzogranite and the continuous mineralization of drill core ZK2508; (2) the consistence of the emplacement age of the biotite monzogranite (~141–140/138 Ma) with the skarn mineralization age (~142 Ma); and (3) the presence of rich ore-forming elements (Fe–Zn–Cu) in the biotite monzogranite, and the similar Pb compositions of the sulfides from the Haobugao deposit and the biotite monzogranite. Compared to the barren syenogranite, the fertile biotite monzogranite is more oxidized, while the edges of the apatite grains in the biotite monzogranite are more oxidized than the centres. The average F/Cl ratio of the fertile biotite monzogranite (~123.45) is much higher than that of the barren syenogranite (~73.98). We conclude that these differences reflect unique geochemical signatures, and the geochemical composition of the apatite can be used to infer the economic potential of granites.

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