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Lee Stocking Island, Exuma District, Bahamasi
| Regional Level Types | |
|---|---|
| Lee Stocking Island | Island |
| Exuma District | District |
| Bahamas | Country |
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Carbonate mud accumulation in a Holocene pond basin on Lee Stocking Island.
The mud has precipitated from warm, hypersaline pond waters. Presence of complex microbial mats (diatoms, cyanobacteria, purple-sulfur bacteria, anaerobic or sulfate-reducing bacteria).
Magnesian calcite represents about 90% of carbonate mud; additional minerals include aragonite (< 10%), as well as trace amounts of dolomite, celestine, and silt- to sand-size reworked authigenic gypsum. The mud fraction constitutes 40-75 % of the sediment, and has a bimodal grain size. More than 80% of the particles are < 2 μm in size, made up of mostly stubby, elongate euhedral to ragged, anhedral crystals, as well as spheroidal and platy calcite bodies, 0.15-0.2 μm in diameter.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Aragonite Formula: CaCO3 |
| ⓘ Calcite Formula: CaCO3 Description: Sr-rich magnesian calcite. |
| ⓘ Calcite var. Mg-rich Calcite Formula: (Ca,Mg)CO3 Description: Sr-rich magnesian calcite. |
| ⓘ Celestine Formula: SrSO4 |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | var. Mg-rich Calcite | 5.AB.05 | (Ca,Mg)CO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Celestine | 7.AD.35 | SrSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| O | Oxygen | |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Celestine | SrSO4 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| S | Sulfur | |
| S | ⓘ Celestine | SrSO4 |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | Calcium | |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| Sr | Strontium | |
| Sr | ⓘ Celestine | SrSO4 |
Fossils
There are 1 fossil locality from the PaleoBioDB database within this region.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.
| Occurrences | 13 |
|---|---|
| Youngest Fossil Listed | 0.01 Ma (Pleistocene) |
| Oldest Fossil Listed | 0.13 Ma (Pleistocene) |
| Fossils from Region | Click here to show the list. |
| Fossil Localities | Click to show 1 fossil locality |
Other Regions, Features and Areas that Intersect
Atlantic OceanOcean
North America
- Central AmericaSubregion
North America Plate
- Bahama PlatformPassive Margin
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