Mining Intelligence and News
United States

Marquez-Juan Tafoya Project

Click for more information

Categories

Summary

Mine TypeUnderground
Study CompletedPreliminary Economic Assessment
Commodities
  • Uranium
Mining Method
  • Room-and-pillar
Backfill type ... Lock
Mine Life... Lock
SnapshotThe Marquez-Juan Tafoya Uranium Project is an advanced-stage exploration property which has been extensively explored in the past by drilling and on a portion of which considerable pre-mining infrastructure was historically constructed, which was subsequently dismantled and reclaimed in the early 2000s.

The Marquez–Juan Tafoya Uranium Project has historical Indicated uranium resources and a historical preliminary economic assessment (PEA).

Anfield intends to assess the Marquez–Juan Tafoya Uranium Project and to establish timelines for potential production.

Owners

SourceSource
CompanyInterestOwnership
Anfield Energy Inc. 100 % Indirect
Marquez-Juan Tafoya Uranium Project is owned 100% by Anfield Energy Inc.

In October 2024, IsoEnergy and Anfield announced a plan of arrangement.

On January 14, 2025 the arrangement was terminated, so Anfield remains the owner of Marquez-Juan Tafoya.

Deposit type

  • Sandstone hosted

Summary:

Uranium mineralization in the Grants Mineral Belt of New Mexico is sandstone-hosted as defined in the “World Distribution of Uranium Deposits (UDEPO) with Uranium Deposit Classification”, (IAEA, 2009). Regionally mineralization is termed primary or re-distributed based on the character and morphology of the mineralization. Re-distributed mineralization is typically roll front type. Primary deposits are typically tabular and range in size from small pods a few feet in width and length to bodies several tens of feet thick, several hundred feet wide and several thousand feet long. The deposits tend to occur in clusters and many form distinct trends that are parallel to the sedimentary trend (Fitch, 1980; Turner-Peterson, 1986; Sandford, 1992).

Uranium occurs mostly as coffinite and uraninite in tabular primary mineralization, and mostly as uraninite in C-shaped or roll fronts in the redistributed mineralization. Primary mineralization is generally associated with finely disseminated carbon and indistinct organic matter, known as humates. Humates are presumed to have formed from the breakdown and dissolving of vegetal matter and redeposition in the mineralized zones. The redistributed mineralization is typically primary mineralization that has been redissolved and moved farther down dip and redeposited in the form of C-shaped roll fronts. Mineralization occurs in stream channel bottoms and margins in straight channels and feeder channels, meanders, and overflow areas. Pyrite and jordisite (black, soft molybdenum mineral, MoS2) are frequently associated minerals in the arkosic sandstone host rock. The mineralization is found as coating on the sand grains and as filling in the interstices between grains. The interstices are also filled with very fine kaolin and calcium carbonate. The humates and jordisite, when present, give the mineralized rocks their dark gray to black color.

The mineralized host within the project is primarily hosted in the lower two sand units, Sands C and D, of the Westwater Canyon member of the Jurassic Morrison Formation. Lessor mineralization is present in Sand B but was not well enough defined for inclusion in the mineral resource estimate. The mineralization occurs mostly as tabular primary deposits (Livingston, 1980) with lesser amounts as roll fronts. Much of the mineralization is associated with disseminated carbon matter (humates), especially the tabular type of mineralization.

Reserves

Lock

- subscription is required.

Mining Methods

Lock

- subscription is required.

Required Heavy Mobile Equipment

Lock

- subscription is required.

Comminution

Crushers and Mills

Lock

- subscription is required.

Processing

Lock

- subscription is required.

Commodity Production

CommodityProductUnitsLOM
Uranium U3O8 k lbs 11,575

Operational metrics

Metrics
Daily ore mining rate  ....  Subscribe
Annual ore mining rate  ....  Subscribe
Waste tonnes, LOM  ....  Subscribe
Ore tonnes mined, LOM  ....  Subscribe
Total tonnes mined, LOM  ....  Subscribe
* According to 2021 study.

Production Costs

CommodityUnitsAverage
Cash costs U3O8 USD  ....  Subscribe
Total cash costs U3O8 USD  ....  Subscribe
Assumed price U3O8 USD  ....  Subscribe
* According to 2021 study / presentation.

Operating Costs

CurrencyAverage
UG mining costs ($/t mined) USD  ....  Subscribe
* According to 2021 study.

Project Costs

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscribe
UG OpEx $M USD  ......  Subscribe
Processing OpEx $M USD 184
Total OpEx $M USD  ......  Subscribe
Income Taxes $M USD  ......  Subscribe
Royalty payments $M USD  ......  Subscribe
Gross revenue (LOM) $M USD  ......  Subscribe
Pre-tax Cash Flow (LOM) $M USD  ......  Subscribe
After-tax Cash Flow (LOM) $M USD  ......  Subscribe
Pre-tax NPV @ 5% $M USD  ......  Subscribe
Pre-tax NPV @ 10% $M USD  ......  Subscribe
Pre-tax NPV @ 7% $M USD  ......  Subscribe
After-tax NPV @ 5% $M USD  ......  Subscribe
After-tax NPV @ 10% $M USD  ......  Subscribe
After-tax NPV @ 7% $M USD  ......  Subscribe
Pre-tax IRR, %  ......  Subscribe
After-tax IRR, %  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 8, 2025
....................... Subscription required ....................... Subscription required Jun 9, 2021
....................... Subscription required ....................... Subscription required Subscription required Jun 9, 2021

Workforce

Aerial view:

Lock

- subscription is required.