Birži-Miķelāni Quarry, Salas Parish, Jēkabpils Municipality, Zemgale Region, Latviai
| Regional Level Types | |
|---|---|
| Birži-Miķelāni Quarry | Quarry (Flooded) |
| Salas Parish | Parish |
| Jēkabpils Municipality | Municipality |
| Zemgale Region | Region |
| Latvia | Country |
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Latitude & Longitude (WGS84):
56° 23' 39'' North , 25° 46' 27'' East
Latitude & Longitude (decimal):
Type:
Quarry (Flooded) - last checked 2023
Deposit first discovered:
2008
Age:
382.7 ± 1.6 to 358.9 ± 0.4 Ma
Geologic Time:
Köppen climate type:
Mindat Locality ID:
436869
Long-form identifier:
mindat:1:2:436869:7
GUID (UUID V4):
dbadac51-8312-4256-914c-0602deed6879
Birži-Miķelāni Dolomite Quarry is a Late Devonian (Daugava suite) dolomite deposit located in the Salas Parish near Birži populated place. It's a quarry for the extraction of crushed dolomite. The quarry is considered as sandy and dolomite, exposing layers of sand of the Upper Quaternary period and a shallow part of the Devonian dolomites of the Daugava suite.
In the layers of ordinary dolomites, karst is widely distributed, some blocks have a honeycomb structure. Some dolomite layers has a specific dark-grey colour (due to dark clay and organic (?) inclusions). These dolomites contain very localized sulfide mineralization in the form of pyrite.
In these dark clayey dolomites, in 2023 for the first time were found atypical for the country territory sulfides - galena and sphalerite (!!!).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Dolomite Formula: CaMg(CO3)2 References: Dmitry Vorobjov's collection, LU museum collectionIdentified by Dmitry Vorobyov (locality photos): Visual Identification |
| ⓘ Galena Formula: PbS References: Dmitry Vorobjov's collection, LU museum collectionIdentified by Dmitry Vorobyov (locality photos): XRF, Raman Spectroscopy |
| ⓘ Pyrite Formula: FeS2 References: Dmitry Vorobjov's collection, LU museum collectionIdentified by Dmitry Vorobyov (locality photos): Visual Identification |
| ⓘ Sphalerite Formula: ZnS References: Dmitry Vorobjov's collection, LU museum collectionIdentified by Dmitry Vorobyov (locality photos): XRF, Raman Spectroscopy |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
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Birži-Miķelāni Quarry, Salas Parish, Jēkabpils Municipality, Zemgale Region, Latvia