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Qianchen gold deposit, Jiaojia-Xincheng Gold camp, Laizhou City, Yantai, Shandong, Chinai
| Regional Level Types | |
|---|---|
| Qianchen gold deposit | Deposit |
| Jiaojia-Xincheng Gold camp | - not defined - |
| Laizhou City | County |
| Yantai | Prefecture |
| Shandong | Province |
| China | Country |
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Latitude & Longitude (WGS84):
37° 22' 56'' North , 120° 7' 31'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The Qianchen gold deposit is a large gold deposit (>50 t of Au) located in the southern part of the Jiaojia gold belt. The gold deposits occur mainly in the Linglong granite and Archean metamorphic rocks, locally accompanied by lamprophyre and diorite porphyrite. There are over 34 gold ore bodies, which are often veined and show the characteristics of pinch and swell, with Au grade showing a range of 0.05 g/t to 16.68 g/t with an average of 2.45 g/t.
The economically important orebodies at Qianchen are represented by I-2 and II-10 Orebodies. The I-2 Orebody, being the largest at Qianchen, holds over 20 t of Au and accounts for 44.09 % of the total metal reserve. It is up to 976 m and 572 m in length and width, respectively, and varies in thickness from 1.20 to 34.80 m (Avg. 5.32 m), with an average gold grade of 2.70 g/t. The II-10 Orebody (Avg. 5.26 g/t) makes up 27.73 % of the total metal reserve at Qianchen, and is up to 740 m and 530 m in length and width, respectively, and features a thickness range of 1.20 to 30.98 m (Avg. 4.76 m). The Qianchen gold mineralization and alteration can be divided into three stages, namely pre-ore K-feldspar-quartz (I), quartz-gold-polymetallic sulfide (II), and post-ore quartz-calcite (III) stages.
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
16 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramDetailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold var. Electrum | 1.AA.05 | (Au,Ag) |
| ⓘ | 1.AA.05 | Au | |
| ⓘ | Silver | 1.AA.05 | Ag |
| ⓘ | Hexaferrum | 1.AG.05 | (Fe,Os,Ru,Ir) |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Galenobismutite | 2.JC.25e | PbBi2S4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified | |||
| ⓘ | 'Feldspar Group' | - | |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'K Feldspar' | - | |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
AsiaContinent
China
- North China OrogenOrogen
Eurasian PlateTectonic Plate
- North China Craton
- Jiao-Liao-Ji BeltShield
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References
[1]Zhao, Hongtao; Zhang, Yu; Xu, Yanbo; Shao, Yongjun; Chen, Xiaoyan; Hao, Jiayao; Zhao, Lianjie; Shen, Hongjie; Wang, Xu (2024) Machine learning model for deep exploration: Utilizing short wavelength infrared (SWIR) of hydrothermal alteration minerals in the Qianchen gold deposit, Jiaodong Peninsula, Eastern China. Ore Geology Reviews, 168. doi:10.1016/j.oregeorev.2024.106060
