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Long Point Dome Mine, Long Point dome, Rosenberg, Fort Bend County, Texas, USAi
Regional Level Types
Long Point Dome MineMine
Long Point domeDome
Rosenberg- not defined -
Fort Bend CountyCounty
TexasState
USACountry

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Latitude & Longitude (WGS84):
29° 22' 52'' North , 95° 42' 41'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Fairchilds1,027 (2017)8.7km
Damon552 (2011)10.3km
Needville3,063 (2017)12.4km
Pleak1,366 (2017)15.2km
Thompsons246 (2011)17.8km
Mindat Locality ID:
274185
Long-form identifier:
mindat:1:2:274185:0
GUID (UUID V4):
0


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.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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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!

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Alphabetical List Tree Diagram

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Sulphur1.CC.05S8
Group 3 - Halides
ⓘHalite3.AA.20NaCl

List of minerals for each chemical element

NaSodium
Naⓘ HaliteNaCl
SSulfur
Sⓘ Native SulphurS8
ClChlorine
Clⓘ HaliteNaCl

Other Databases

Link to USGS MRDS:10061164

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