Koordon ridge, Irkutsk Oblast, Russiai
| Regional Level Types | |
|---|---|
| Koordon ridge | Ridge |
| Irkutsk Oblast | Oblast |
| Russia | Country |
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Latitude & Longitude (WGS84):
63° 17' 52'' North , 107° 12' 57'' East
Latitude & Longitude (decimal):
Locality type:
Deposit first discovered:
1873
Age:
252.17 ± 0.06 to 247.2 Ma
Geologic Time:
Köppen climate type:
Other/historical names associated with this locality:
Боръ Коордонъ / Бор Коордон
Other Languages:
Russian:
Коордон, Иркутская область, Россия
Koordon is a ridge and also conifer forest with exposures of Siberian Traps.
A.P. Czekanowski 1896:
Flat ridge, on the right bank of the Tunguska, at the mouth of the river Luku (Russ. Люку) - or probably "Koroblevka" (Russ. Короблевка) by Daniel Gottlieb Messerschmidt, named Koordon on behalf of the Shaman buried here. Flat banks stretch to the mouth of the river. Above rocks exposed in a steep slope up to the height of 90', which consists of gray breccia, distinct from previously seen by the fact that it lacks abundant usually pieces of coal. With it comes greywacke with layered divisibility, covered by dense trap rock.
In the rocks of the cliff, generally weathered, zeolites are very abundant, partly in thin veins, as well as in spherical, very clayey parts of the rock. Zeolites presented only by analcime, completely analogous to the previous deposits, forms only {112}; small in 2-3 mm. crusty crystals, with cracked walls, transparent, shiny, well preserved; larger reaching 1-2 cm. crystals, fissured and cloudy. Interesting analcime forming free crystals in clay...There is an interesting process of replacing analcime with natrolite; in this case, the crystals are hollow and contain intersecting prisms of natrolite up to 2 mm inside. ... Some crystals have been completely replaced by natrolite, with only the external appearance of analcime.
Note: mentioned "greywacke" probably tuff.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
2 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:
| ⓘ Analcime Formula: Na(AlSi2O6) · H2O Reference: Czekanowski A.P. (1896) - Diary of the expedition of A.P. Chekanovsky along the rivers Lower Tunguska, Olenek and Lena in 1873-1875. Notes of the Imperial Russian Geographical Society 20, Petrograd
[Чекановский А.Л. (1896) - Дневник экспедиции А.Л. Чекановского по рекам Нижней Тунгуске, Оленеку и Лене в 1873-1875 годах. Записки Императорского Русского географического общества: 20.Петрогра́д] (in Russian).
Kostyleva, E.E. (1916) - Minerals of the Lower Tunguska from the collection of A. Chekanovsky. Proceedings of the Russian Academy of Sciences [Костылева, Е.Е. (1916) - Минералы Нижней Тунгуски из коллекции А. Чекановского. Известия Российской Академии Наук] (in Russian) |
| ⓘ Natrolite Formula: Na2Al2Si3O10 · 2H2O Reference: Kostyleva, E.E. (1916) - Minerals of the Lower Tunguska from the collection of A. Chekanovsky. Proceedings of the Russian Academy of Sciences [Костылева, Е.Е. (1916) - Минералы Нижней Тунгуски из коллекции А. Чекановского. Известия Российской Академии Наук] (in Russian)
Czekanowski A.P. (1896) - Diary of the expedition of A.P. Chekanovsky along the rivers Lower Tunguska, Olenek and Lena in 1873-1875. Notes of the Imperial Russian Geographical Society 20, Petrograd |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Analcime | 9.GB.05 | Na(AlSi2O6) · H2O |
| ⓘ | Natrolite | 9.GA.05 | Na2Al2Si3O10 · 2H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Analcime | Na(AlSi2O6) · H2O |
| H | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| O | Oxygen | |
| O | ⓘ Analcime | Na(AlSi2O6) · H2O |
| O | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Na | Sodium | |
| Na | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Na | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Al | Aluminium | |
| Al | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Al | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Si | Silicon | |
| Si | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Si | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Czekanowsk,i A.P. (1896) Diary of the expedition of A.P. Chekanovsky along the rivers Lower Tunguska, Olenek and Lena in 1873-1875. Notes of the Imperial Russian Geographical Society 20, Petrograd [Чекановский А.Л. (1896) Дневник экспедиции А.Л. Чекановского по рекам Нижней Тунгуске, Оленеку и Лене в 1873-1875 годах. Записки Императорского Русского географического общества: 20.Петрогра́д] (in Russian).
Kostyleva, E.E. (1916) Minerals of the Lower Tunguska from the collection of A. Chekanovsky. Proceedings of the Russian Academy of Sciences [Костылева, Е.Е. (1916) - Минералы Нижней Тунгуски из коллекции А. Чекановского. Известия Российской Академии Наук] (in Russian)
Eremeev, P.V. (1896) Analcime from the Koordon ridge, from the Chekanovsky collection. Verhandlungen der Russisch-Kaiserlichen Mineralogischen Gesellschaft zu St. Petersburg XXXIV P.25; [Еремеев П.В. (1896) Анальцим из хребта Коордон, из коллекции Чекановского. Записки Императорского С.-Петербургского Минералогического общества; St. Petersburg 34, C.25] (in Russian).
External Links
https://www.google.co.uk/books/edition/Дневник_экспедиціи_Ал/HFRKAAAAYAAJ?hl=en&gbpv=0 - Czekanowski (1896) (in Russian); Page 72.
https://www.mathnet.ru/links/d727603d2c7197dc08d873ac914828bf/im6215.pdf - Kostyleva (1916) (in Russian); Page 1075.
https://www.mathnet.ru/links/d727603d2c7197dc08d873ac914828bf/im6215.pdf - Kostyleva (1916) (in Russian); Page 1075.
Other Regions, Features and Areas containing this locality
AsiaContinent
Eurasian PlateTectonic Plate
Russia
- ⭔SiberiaTraditional Region
- ⭔Siberian Federal DistrictDistrict
Soviet Union (1922-1991)Country
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