Mine detail: Big Four Mine

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Location:	Hillsborough County, Florida, United States, North America
Lat / long:	27.74419, -82.07791
dep_id:	10106191
mrds_id:	W031393
Commodity type:	nonmetallic
Major mineral:	Phosphorus-Phosphates
Operation type:	Unknown
Production size:	Large ammount of material produced
Development status:	Past Producer
ore:	Collophane
orebody_fm:	BLANKET (COVERS 2000 SQ MI OF THE COASTAL PLAIN)
work_type:	Surface
model:	244: Phosphate, warm current type
Reporter:	Sutphin, David M., Nicholson, S.W.
hrock_unit:	Bone Valley;Hawthorn: Underlies Bone Valley Unconformably. Yellow-Tan Dolostone
hrock_type:	Phosphorite
Structure:	Phosphorite
Year first produced:	1976
References:	Deposit:: CENTRAL FLORIDA PHOSPHATE IND. AREA WIDE IMPACT ASSESSMENT PROGRAM. EXISTING LAND USE, VOL IV, PREPARED FOR U.S.E.P.A BY TEXAS INSTRUMENTS INC. JUNE 1977. Deposit:: APPLICATION FOR D.R.I.BORDEN BIGFOUR MINE, HILLS, CO., 1976 BORDEN INCORPORATED ANNUAL REPORT, 1976 Deposit:: PHILLIPS PETROLEUM CO. MINING MASTER PLAN FOR MANATEE COUNTY ZONING BOARD, 1975 Deposit:: ZELLARS-WILLIAMS, INC., EVALUATION OF THE PHOSPHATE DEPOSITS OF FLORIDA USING THEMINERALS AVAILABILITY SYSTEM, BUMINES OPEN FILE REPORT 112-78. NTIS: PB 2286 648/AS. KEYSVILLE, AND DUETTE NE QUADRANGLES FLORIDA, USGS 7.5 MIN. SERIES, 1955, 1956. Deposit:: International Minerals And Chemicals Corporation. Annual Report, 1977International Minerals And Chemicals Corporation. Annual Report, 1977 Deposit:: Phillips Petroleum Company. Mining Master Plan For Manatee County, Florida. Submitted To The Manatee County Zoning Board, 1975.Phillips Petroleum Company. Mining Master Plan For Manatee County, Florida. Submitted To The Manatee County Zoning Board, 1975. Deposit:: Central Florida Phosphate Ind. Area Wide Impact Assessment Program. Existing Land Use, Vol Iv, Prepared For U.S.E.P.A By Texas Instruments Inc. June 1977.Central Florida Phosphate Ind. Area Wide Impact Assessment Program. Existing Land Use, Vol Iv, Prepared For U.S.E.P.A By Texas Instruments Inc. June 1977.