Lake Baikal, Russia (original) (raw)
Lake Baikal, Russiai
| Regional Level Types | |
|---|---|
| Lake Baikal | Lake (Active) |
| Russia | Country |
Type:
Lake (Active) - last checked 2018
Mindat Locality ID:
305233
Long-form identifier:
mindat:1:2:305233:7
d4b02c57-93ec-4b02-a0ce-4f4a37e48b31
Russian:
Озеро Байкал, Россия
Lake Baikal is a rift lake, located in southern Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic (Buryatia) to the southeast. It is the largest freshwater lake by volume in the world and also the deepest one.
Authigenic vivianite and siderite microconcretions have been found in deep sediments of the lake, at about 150 m and 600 m respectively of a 600-m-long sediment section. The distribution of the authigenic minerals in the section suggests changes in both sedimentary facies and climate, where vivianite formation was controlled by hemipelagic depositional conditions during the Pliocene and Quaternary, whereas siderite reflects impact of deltaic conditions during the Miocene (Sapota et al., 2006). Previously, four Lake Baikal sediment cores spanning two to four interglacial stages in the northern, central and southern basins and under various biogeochemical environments were investigated (Fagel et al., 2005). The millimetric blue concretions of vivianite, isolated by sieving, show a secondary alteration and are gradually transformed from the rim to the center into a yellow-brown amorphous santabarbaraite phase with a decreasing Mn content.
Select Mineral List Type
Standard Detailed Gallery Strunz
Chemical Elements
Mineral List
3 valid minerals.
Detailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Vivianite | 8.CE.40 | Fe2+Fe2+2(PO4)2 · 8H2O |
| ⓘ | Santabarbaraite | 8.CE.80 | Fe3+3(PO4)2(OH)3 · 5H2O |
Fossils
There are 2 fossil localities from the PaleoBioDB database within this region.
BETA TEST - These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.
Other Regions, Features and Areas that Intersect
- Siberian Craton
- Magan TerraneCraton
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