Deposit No. 3756, Hegenshan Ophiolite, West Ujimqin Banner (Xiwuzhumuqin Co.), Xilingol League (Xilinguole Prefecture), Inner Mongolia, Chinai
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Latitude & Longitude (WGS84):
44° 45' 29'' North , 116° 16' 40'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Chromite deposit, consisting of about 180 podiform chromite bodies that are hosted in dunite dikes. The largest orebody is 850 m long, extends downdip for 260 m, and is up to 17 m thick. The host rock is mainly dunite with minor peridotite. The deposit occurs in the elliptical NS-trending Devonian Hegenshan ophiolite that crops out over an area of 60 km2. The ophiolite units, from older to younger, are: (1) peridotite with about 1,600 dunite dikes that range form several tens to one hundred meters long; (2) cumulate dunite, peridotite, ferellenstein, and gabbro; (3) conformably overlying metamorphosed mafic lava that is about 1,500 m thick, and is intercalated with silexite and limestone layers; and (4) conformably overlying Middle Devonian cataclastic rocks, tuffs, limestones, and silexite that range up to 2,000 m thick. Some dunite dikes in the peridotite contain chromite deposits.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Chlorite Group' |
| ⓘ Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 |
| ⓘ Clinochlore var. Chromium-bearing Clinochlore Formula: Mg5(Al,Cr)2Si3O10(OH)8 |
| ⓘ Magnesiochromite Formula: MgCr2O4 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnesiochromite | 4.BB.05 | MgCr2O4 |
| Group 9 - Silicates | |||
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| ⓘ | var. Chromium-bearing Clinochlore | 9.EC.55 | Mg5(Al,Cr)2Si3O10(OH)8 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | Oxygen | |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| O | ⓘ Magnesiochromite | MgCr2O4 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Mg | Magnesium | |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Mg | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Mg | ⓘ Magnesiochromite | MgCr2O4 |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Si | Silicon | |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Cr | Chromium | |
| Cr | ⓘ Clinochlore var. Chromium-bearing Clinochlore | Mg5(Al,Cr)2Si3O10(OH)8 |
| Cr | ⓘ Magnesiochromite | MgCr2O4 |
Other Regions, Features and Areas containing this locality
Amur PlateTectonic Plate
AsiaContinent
Eurasian Plate
- Henegshan-Baolidao Accretionary ComplexAccretionary Complex
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