Deep Ocean Pocket, Tampa Bay, Tampa, Hillsborough County, Florida, USAi
| Regional Level Types | |
|---|---|
| Deep Ocean Pocket | Deposit |
| Tampa Bay | Bay |
| Tampa | City |
| Hillsborough County | County |
| Florida | State |
| USA | Country |
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Latitude & Longitude (WGS84):
27° North , 82° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~3km
Type:
Köppen climate type:
The Deep Ocean Pocket is a submerged offshore locality near Tampa Bay, FL, ~50 yard long × ~20 yard wide, buried in thick mud with near-zero visibility & strong currents; position difficult to relocate even by experienced divers. Produces chalcedony pseudomorphs after coral formed by silica replacement of coral skeletons; the original corals formed roughly 25 to 30 Ma during the Miocene Epoch. Material is distinct from typical Tampa occurrences: rare blue→black chalcedony formed in deeper ocean pockets where saltwater & decaying organic material interacted with silica under reducing conditions. Specimens characteristically show blue→black coloration rather than red→honey tones; black zones may show banding visible under UV. Material occurs as voided coral masses similar to other Florida occurrences, but this site yields an uncommon color range & a relatively small proportion of polishable pieces; exceptional specimens are rare. Recovery conducted in coordination with academic & museum partners, with reference material stored for study. The locality was discovered in 2020 by divers Rick Cochrane & Henry Sadler.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Opal Formula: SiO2 · nH2O |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Agate Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Agate | 4.DA.05 | SiO2 |
| ⓘ | var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Opal | SiO2 · nH2O |
| O | Oxygen | |
| O | ⓘ Quartz var. Agate | SiO2 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Agate | SiO2 |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Pyrite | FeS2 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Suwannee-Wiggins DomainDomain
- Suwannee TerranePassive Margin
USA
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Deep Ocean Pocket, Tampa Bay, Tampa, Hillsborough County, Florida, USA