Long Point Dome Mine, Long Point dome, Rosenberg, Fort Bend County, Texas, USAi
| Regional Level Types | |
|---|---|
| Long Point Dome Mine | Mine |
| Long Point dome | Dome |
| Rosenberg | - not defined - |
| Fort Bend County | County |
| Texas | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
29° 22' 52'' North , 95° 42' 41'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fairchilds | 1,027 (2017) | 8.7km |
| Damon | 552 (2011) | 10.3km |
| Needville | 3,063 (2017) | 12.4km |
| Pleak | 1,366 (2017) | 15.2km |
| Thompsons | 246 (2011) | 17.8km |
A salt-S-limestone deposit/mine located . Discovered by Gulf Production Company in 1924 based on a geophysical anomaly. First production was in 1930 and continued until 1938, then 1946 to ? Operated by Texas Gulf (Jefferson Lake) (1930-1982 ?). Owned by the Potash Corporation Of Saskatchewan (100%), Canada (1996). Owned by Texasgulf Incorporated (affiliate of Elf Aquitaine, Incorporated) (50%, Connecticut (1982-1996). Owned & operated by Jefferson Lake Sulphur Company, a division of Occidental Chemical Company (50%), Texas (1982-1996). MRDS database accuracy for this location is not stated. H2S was found in a water well in 1923. The dome was discovered by gravity in 1924. S was found in a 1924 oil test. The mine was shut down for an indefinite time on November 5, 1982, because of increasing production costs and declining reserves. Later the shutdown was made permanent.
Mineralization is a salt dome deposit (Mineral occurrence model information: Model code: 255; USGS model code: 35a.7 (35ag); Deposit model name: Salt-dome sulfur), hosted in Middle Jurassic Louann limestone and salt. The ore body has a depth-to-top of 518.16 meters. Local alteration includes biogenic alteration of anhydrock to limestone. Local rocks include rocks of the Beaumont Formation, areas predominantly sand.
Local geologic structures include a piercement salt dome.
Workings include the wells and surface infrastructure for the Frasch process of sulfur mining. The sulfur was mined by the Frasch mining method that used superheated hot water, steam and compressed air for melting and recovering sulfur in a liquid form from deep wells.
Production data are found in: Halbouty, Michel T. (1979). Production had been declining since 1975.
Production statistics: Year: 1967 (period = 1930-1967): 5,218,000 metric tons of S; Year: 1968: 289,000 metric tons; Year: 1969: 281,000 metric tons; Year: 1970: 295,000 metric tons; Year: 1971: 296,000 metric tons; Year: 1972: 318,000 metric tons; Year: 1973: 326,000 metric tons; Year: 1974: 324,000 metric tons; Year: 1975: 195,000 metric tons; Year: 1976: 253,000 metric tons; Year: 1977: 220,000 metric tons; Year: 1978: 192,000 metric tons; Year: 1979: 211,000 metric tons; Year: 1980: 211,000 metric tons; Year: 1981: 128,000 metric tons; Year: 1982: 112,000 metric tons.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
2 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Halite Formula: NaCl |
| ⓘ Native Sulphur Formula: S8 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Sulphur | 1.CC.05 | S8 |
| Group 3 - Halides | |||
| ⓘ | Halite | 3.AA.20 | NaCl |
List of minerals for each chemical element
| Na | Sodium | |
|---|---|---|
| Na | ⓘ Halite | NaCl |
| S | Sulfur | |
| S | ⓘ Native Sulphur | S8 |
| Cl | Chlorine | |
| Cl | ⓘ Halite | NaCl |
Other Databases
| Link to USGS MRDS: | 10061164 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Gulf of Mexico BasinBasin
- Northern Gulf of Mexico MarginPassive Margin
- Sabine DomainDomain
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
