Lee Stocking Island, Exuma District, Bahamasi
| Regional Level Types | |
|---|---|
| Lee Stocking Island | Island |
| Exuma District | District |
| Bahamas | Country |
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Type:
Mindat Locality ID:
72055
Long-form identifier:
mindat:1:2:72055:0
GUID (UUID V4):
ed156b04-dd5a-4252-9321-2d95a6b58d11
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 ΞΌm 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 ΞΌm in diameter.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Aragonite Formula: CaCO3 Reference: Dix G.R. (2001): Origin of Sr-rich magnesian calcite mud in a Holocene pond basin (Lee Stocking Island, Bahamas). Journal of Sedimentary Research, 71, 1, 167-175. |
| β Calcite Formula: CaCO3 Description: Sr-rich magnesian calcite. Reference: Dix G.R. (2001): Origin of Sr-rich magnesian calcite mud in a Holocene pond basin (Lee Stocking Island, Bahamas). Journal of Sedimentary Research, 71, 1, 167-175. |
| β Calcite var. Mg-rich Calcite Formula: (Ca,Mg)CO3 Description: Sr-rich magnesian calcite. Reference: Dix G.R. (2001): Origin of Sr-rich magnesian calcite mud in a Holocene pond basin (Lee Stocking Island, Bahamas). Journal of Sedimentary Research, 71, 1, 167-175. |
| β Celestine Formula: SrSO4 Reference: Dix G.R. (2001): Origin of Sr-rich magnesian calcite mud in a Holocene pond basin (Lee Stocking Island, Bahamas). Journal of Sedimentary Research, 71, 1, 167-175. |
| β Dolomite Formula: CaMg(CO3)2 Reference: Dix G.R. (2001): Origin of Sr-rich magnesian calcite mud in a Holocene pond basin (Lee Stocking Island, Bahamas). Journal of Sedimentary Research, 71, 1, 167-175. |
| β Gypsum Formula: CaSO4 · 2H2O Reference: Dix G.R. (2001): Origin of Sr-rich magnesian calcite mud in a Holocene pond basin (Lee Stocking Island, Bahamas). Journal of Sedimentary Research, 71, 1, 167-175. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| β | Aragonite | 5.AB.15 | CaCO3 |
| β | Calcite | 5.AB.05 | CaCO3 |
| β | var. Mg-rich Calcite | 5.AB.05 | (Ca,Mg)CO3 |
| β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Celestine | 7.AD.35 | SrSO4 |
| β | Gypsum | 7.CD.40 | CaSO4 Β· 2H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Gypsum | CaSO4 · 2H2O |
| C | Carbon | |
| C | β Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| C | β Dolomite | CaMg(CO3)2 |
| C | β Aragonite | CaCO3 |
| C | β Calcite | CaCO3 |
| O | Oxygen | |
| O | β Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| O | β Dolomite | CaMg(CO3)2 |
| O | β Celestine | SrSO4 |
| O | β Gypsum | CaSO4 · 2H2O |
| O | β Aragonite | CaCO3 |
| O | β Calcite | CaCO3 |
| Mg | Magnesium | |
| Mg | β Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| Mg | β Dolomite | CaMg(CO3)2 |
| S | Sulfur | |
| S | β Celestine | SrSO4 |
| S | β Gypsum | CaSO4 · 2H2O |
| Ca | Calcium | |
| Ca | β Calcite var. Mg-rich Calcite | (Ca,Mg)CO3 |
| Ca | β Dolomite | CaMg(CO3)2 |
| Ca | β Gypsum | CaSO4 · 2H2O |
| Ca | β Aragonite | CaCO3 |
| Ca | β Calcite | CaCO3 |
| Sr | Strontium | |
| Sr | β Celestine | SrSO4 |
Fossils
There are 1 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.
| 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 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Dix G.R. (2001): Origin of Sr-rich magnesian calcite mud in a Holocene pond basin (Lee Stocking Island, Bahamas). Journal of Sedimentary Research, 71, 1, 167-175.
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