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United States
Carlsbad HB Mine

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 Location:
31 km NE from Carlsbad, New Mexico, United States

  Address:
210 Red Cloud Rd.
Carlsbad
New Mexico, United States
88220
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WebsiteWeb
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Overview

StageProduction
Mine TypeIn-Situ
Commodities
  • Potash
Mining Method
  • Room-and-pillar
  • Solution mining
Production Start...
Mine Life2046
The Intrepid Potash–New Mexico property (IPMN) includes two operating mines, the East Underground and HB Solution Mines, one idled mine, the West Mine and the North Mine which was shut down in the early 1980’s. The life of the resources and reserves at IPNM exceeds 25 years.


Owners

Source: p. 112
CompanyInterestOwnership
Intrepid Potash, Inc. 100 % Indirect

Contractors

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Deposit Type

  • Evaporite


Summary:

Deposit Type The geology of the potash-bearing beds of the Carlsbad area has been well documented. Overall, the potash-bearing beds may be described as bedded sedimentary rocks, deposited across the Delaware Basin and Northwest Shelf backreef from the Capitan Reef. The depositional sequences that developed in the Salado Formation consist of repetitive cycles that can be recognized by changes inmineralogy, sedimentary textures, and structures. Two types of cycles are differentiated Type I and Type II. A complete Type I cycle rangesin thickness from 3 ft to 33 ft and consists of (in ascending order): • A basal, mixed siliciclastic and carbonate mudstone • Laminated to massive anhydrite-polyhalite • Halite • Halite with mud (argillaceous halite) Type II is a thinner, less complete sequence and consists of halite that grades upward into argillaceous halite (Lowenstein 1988).The anhydrite-polyhalite beds are laterally continuous over large distances and are used as marker beds for correlation. Potash beds arenot included in these sequences because potash is secondary and formed later than the basic depositional sequence. The HB Mine, which was formerly mined on the 1 and 3 ore zones (Barker and Austin 1999),has been flooded and is currently being solution mined with brines to obtain potash from the remaining pillars. Mineralization In the Carlsbad Area, the potassium minerals, in order of decreasing abundance, are polyhalite, sylvite, carnallite, langbeinite,kainite, and leon ........


Mining Methods

  • Room-and-pillar
  • Solution mining


Summary:

The HB Plant produces Muriate of Potash (MOP) from the solution mine brine. The long-term underground mining plan includes development and high-extraction, room-and-pillar mining in the 3, 4, 5, 7, 8, and 10 ore zones. Solution mining of the 1 and 3 ore zones in previously mined-out areas of the property is planned to continue long term. All MOP production at IPNM comes from the HB Solar SolutionMine in the 1 and 3 ore zones. Historical room-and pillar-mining operations at the HB complex recovered about 70% of the ore, leaving approximately 30% of the ore available for secondary recovery in pillars plus what can be recovered beyond the limits of the conventional mine works. Mining at the HB Solar Solution Mine recovers potash by injecting saturated saline NaCl brine into the old mine works to create underground leach lakes. Over time, the solution enriched with potash is pumped to the surface to solar evaporation ponds. Selective solar evaporation leaves behind a potash-enriched salt that is collected using scrapers, pumped and processed at the HB Plant. The solution mine comprises six injection wells, five extraction wells, and three monitoring wells.


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2021202020192018201720162015
Potash k tons  ......  Subscription required  ......  Subscription required  ......  Subscription required150172124134
All production numbers are expressed as salt.
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Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required734 k tons679 k tons728 k tons587 k tons
Annual production capacity  ......  Subscription required  ......  Subscription required180 k tons of potash salt180 k tons of potash salt180 k tons of potash salt180 k tons of potash salt
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Reserves at December 31, 2021:
Reserves and Resources estimates are including HB Solution and West Mines.
Mechanical Mining Cutoff(ft-%KO) 45–59

CategoryTonnage CommodityGradeContained MetalRecoverable Metal
Proven & Probable M tons Potash M tons 4.3 M tons
Proven & Probable M tons K2O 20.7 %
Measured 370 M tons K2O 15 % 56 M tons
Indicated 200 M tons K2O 14 % 29 M tons
Measured & Indicated 570 M tons K2O 15 % 85 M tons



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Jul 18, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Form 10-K 2018
Form 10-K 2017
Form 10-K 2016
Other 2016
Annual Report 2015
Project Description 2009
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