Dongjiahe Pb-Zn deposit, Chenxi Co., Huaihua, Hunan, Chinai
| Regional Level Types | |
|---|---|
| Dongjiahe Pb-Zn deposit | Deposit |
| Chenxi Co. | County |
| Huaihua | Prefecture-level City |
| Hunan | Province |
| China | Country |
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Latitude & Longitude (WGS84):
28° 10' 0'' North , 110° 22' 59'' East
Latitude & Longitude (decimal):
Type:
Kรถppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Xiuxi | 1,000 (2012) | 22.7km |
| Tanwan | 1,630 (2004) | 31.9km |
| Xiaojiangkou | 770 (2012) | 32.4km |
| Huomachong | 1,930 (2012) | 34.9km |
| Qiaojiang | 3,290 (2012) | 38.4km |
Name(s) in local language(s):
่ฃๅฎถๆฒณ้
้็ฟ, ่พฐๆบชๅฟ, ๆๅๅธ, ๆนๅ็, ไธญๅฝ
Stratabound lead-zinc deposit.
The Dongjiahe deposit consists of Neoproterozoic and Cambrian rocks that form the NE-SW-striking anticline, which has a steeply SE-dipping axial plane. Clastic rocks and glacial diamictites of the Neoproterozoic Nanhua Group are exposed in the core of the anticline, and Ediacaran and Cambrian dolostones and limestones are exposed in the limbs. The Marinoan cap dolostone in the Dongjiahe deposit is divided into three units, each of which is 1โ2 m thick. The basal and upper units contain Zn-Pb ores and are referred to as the lower and upper mineralized layers, respectively. The ore grades of the lower and upper mineralized layers are similar and they contain โผ 25 % and โผ 75 % of the metal resource of the deposit, respectively. The basal unit of the cap dolostone at Dongjiahe has sheet cracks, breccias, tepee, and doming structures, associated with mineral cementation.
Pre-ore stage: The stratiform distribution of the type I pyrite indicates that it probably formed during early diagenesis of the cap dolostone. Chalcedony fills the folding-related fractures within the upper cap dolostone at Dongjiahe, indicating that it formed during or after regional folding associated with the early Mesozoic Xuefeng Mountain Orogeny.
Ore stage: The Zn-Pb mineralization of the Dongjiahe deposit has not been dated radiometrically. However, mineralization must have occurred during or after the regional folding event associated with the early Mesozoic Xuefeng Mountain Orogeny.
Post-ore stage: Quartz and calcite formed after precipitation of sphalerite and galena. They fill open spaces that also contain Zn and Pb sulfides, or occur in veins without sulfides. These minerals occur in unmineralized cap dolostones elsewhere in South China, so they were not associated with the Zn-Pb mineralization.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
8 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| โ Baryte Formula: BaSO4 References: |
| โ Calcite Formula: CaCO3 References: |
| โ Dolomite Formula: CaMg(CO3)2 References: |
| โ Fluorite Formula: CaF2 |
| โ Galena Formula: PbS References: |
| โ 'Petroleum' |
| โ 'Petroleum var. Bitumen' |
| โ Pyrite Formula: FeS2 References: |
| โ Quartz Formula: SiO2 References: |
| โ Quartz var. Chalcedony Formula: SiO2 |
| โ Sphalerite Formula: ZnS References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| โ | Sphalerite | 2.CB.05a | ZnS |
| โ | Galena | 2.CD.10 | PbS |
| โ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| โ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| โ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| โ | 4.DA.05 | SiO2 | |
| Group 5 - Nitrates and Carbonates | |||
| โ | Calcite | 5.AB.05 | CaCO3 |
| โ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| โ | Baryte | 7.AD.35 | BaSO4 |
| Unclassified | |||
| โ | 'Petroleum var. Bitumen' | - | |
| โ | '' | - | |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | โ Calcite | CaCO3 |
| C | โ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | โ Baryte | BaSO4 |
| O | โ Calcite | CaCO3 |
| O | โ Quartz var. Chalcedony | SiO2 |
| O | โ Dolomite | CaMg(CO3)2 |
| O | โ Quartz | SiO2 |
| F | Fluorine | |
| F | โ Fluorite | CaF2 |
| Mg | Magnesium | |
| Mg | โ Dolomite | CaMg(CO3)2 |
| Si | Silicon | |
| Si | โ Quartz var. Chalcedony | SiO2 |
| Si | โ Quartz | SiO2 |
| S | Sulfur | |
| S | โ Baryte | BaSO4 |
| S | โ Galena | PbS |
| S | โ Pyrite | FeS2 |
| S | โ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | โ Calcite | CaCO3 |
| Ca | โ Dolomite | CaMg(CO3)2 |
| Ca | โ Fluorite | CaF2 |
| Fe | Iron | |
| Fe | โ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | โ Sphalerite | ZnS |
| Ba | Barium | |
| Ba | โ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | โ Galena | PbS |
Other Regions, Features and Areas containing this locality
AsiaContinent
China
- Giant Sb metallogenic beltMineral Belt
Eurasian Plate
- Eastern Yangtze CratonCraton
- Xiangzhong metallogenic provinceMineral Province
Yangtze PlateTectonic Plate
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