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Pavlovskoe REE-coal Deposit, Khanka Lake, Primorskiy Kray, Far-Eastern Region, Russia

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Other/historical region names associated with this locality: Spetsugli deposit, Chekhez deposit
 
Giant deposit of Y- and HREE-enriched brown coals, in the SE part of the Khankai Massif. This is one of two deposits in the area, the other being Luzanovka. The coals are named Spetsugli (for "special coals") as they also comprise (and are especially recognized for being) a germanium deposit. They are also anomalously enriched in Cs, Rb and Sb. The mean Cs content, 30.3 ppm, exceeds for more than one order of magnitude the typical content in coals as a whole. Meanwhile, the maximum content of 57.2 is at once the maximum Cs content in a solid fuel. Rubidium was sorbed (within the further deposit) in clays and Cs in both clays and organic matter. Antimony (suggested to be mineable), with up to 1175 ppm, concentrates mainly in the organics and its behaviour is similar to that of Ge. The coals are also anomalously enriched in As, W and Be.

Eluvial sediments overlying kaolinitized Lower Cambrian schists. The schist was intruded by hydrothermally altered basic (alkaline basaltoid) extrusive dikes, thought to be Pliocene–Quaternary, that may have generated or activated saline hydrothermal fluids during intrusion and the accompanying extrusion of basalts.

Located between Osimovka and Abramovka Rivers.

Beside the listed minerals there are also: a Bi-Te phase, (As,Cr)-bearing iron sulphates, an Fe-Cr intermetallide, a Au-Ag amalgam and merurian gold.

Mineral List



43 entries listed. 37 valid minerals.

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References

- Seredin, V.V. (1996): Rare earth element-bearing coals from the Russian Far East deposits. International Journal of Coal Geology: 30: 101-129.
- Seredin, V.V. (1998): Rare earth mineralization in a late Kainosoic explosive structures (Khankai massif, Primorie). Geologiya Rudnyh Mestorozhdenii: 40(5): 403-418 (in Russ.).
- Seredin, V.V. (1998): New discovery of native tantalum. Doklady Akademii Nauk: 360(6): 791-795 (in Russ.).
- Seredin, V.V. (): Anomalous Concentrations of Trace Elements in the Spetsugli Germanium Deposit (Pavlovka Brown Coal Deposit, Southern Primorye): Communication 1. Antimony. Lithology and Mineral Resources: 38(2): 154-161
- Seredin, V.V. (2003): Anomalous Concentrations of Trace Elements in the Spetsugli Germanium Deposit (Pavlovka Brown Coal Deposit, Southern Primorye): Communication 2. Rubidium and Cesium. Lithology and Mineral Resources: 38(3): 233-241
- Seredin, V., Dobrovol'skaya, M.G., Mokhov, A.V., (2007): Unique polycomponent mineralization in breccia bodies at the Pavlovsk brown coal deposit. Doklady Earth Sciences: 412(1): 113-116

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