• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Peru
Florida Canyon Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
12 km NW from Pedro Ruiz, Peru

  Project Contacts:
Avenida San Borja Norte 523 San Borja
Lima
Peru
Phone  ...  Subscription required
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Peru
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StagePreliminary Economic Assessment
Mine TypeUnderground
Commodities
  • Zinc
  • Lead
  • Silver
Mining Method
  • Cut & Fill
  • Drift & Fill
  • Longhole stoping
  • Cemented backfill
Processing
  • Flotation
Mine Life13 years (as of Jan 1, 2017)
The Project name was changed in 2017 from Bongará, as it was called previously, to Florida Canyon.
Latest NewsSolitario Files New NI 43-101 Technical Report for Its Florida Canyon Zinc Project Detailing a Significant Increase in Mineral Resources     April 7, 2021


Owners

Source: p. 12
CompanyInterestOwnership
Solitario Zinc Corp. 39 % Indirect
Nexa Resources Perú S.A.A. 61 % Indirect
Minera Bongará S.A. 100 % Direct
Solitario's and Nexa’s property interests are held through the ownership of shares in Minera Bongará S.A., a joint operating company that holds a 100% interest in the mineral rights and other project assets. Solitario currently owns 39% of the Florida Canyon project.

Deposit Type

  • Mississippi Valley Type


Summary:

The zinc-lead-silver mineralization of the Florida Canyon deposit occurs as sulfides hosted in dolomitized zones of the Chambara 2 Formation. Dolomite paragenesis and later sulfide mineralization are controlled by a combination of porosity, permeability and structural preparation. Metals occur in sphalerite and lesser galena, which contains silver. Minor mineralization is hosted in limestones, but the bulk of sphalerite and galena is hosted in dolomite.

In a number of core samples, the mineralization has very sharp contacts along the dolomitization boundary. Characteristic mineralization textures include massive and disseminated mantos, mineralization in dissolution breccias, collapse breccias and pseudobreccias. The different breccias and vein types are structurally controlled by faults of north-south and northeast- southwest direction.

The mineralization is characterized by the presence of sphalerite, galena and locally pyrite. Sulfide replacements occur in dolomitized limestone of variable grain sized and in solution breccias with white dolospar and lesser amounts of late generation calcite. Pyrite content is generally low, with percentages averaging less than 2% by volume. Sphalerite in mineralized sections has variable grain size from 0.1 to greater than 5 mm, with colors ranging from dark brown through reddish brown to light brown. It occurs as individual crystals or in massive form, sometimes displaying colloform textures with bands of slightly differing color zoning, indicators of polyphase hydrothermal deposition.

Early fine-grained sphalerite has evidence of later deformation and reactions to secondary mineralizing fluids. A second phase of more massive sphalerite mineralization is observed within the core of the deposit. These crystals are coarse-grained, regular, euhedral and show very little evidence of any post-depositional deformation. The sphalerite is contemporaneous with fine to coarse grained galena and is often overprinted with a later stage coarse-grained, euhedral galena.

The presence of zinc oxides, locally to considerable depths, is due to syngenetic oxidation, with later contributions of basin- derived connate water and movement of rainwater through fractures that leached the limestones and formed significant karst cavities.

The areas of current exploration interest are the Karen/Milagros, San Jorge and Sam Fault deposits. These mineralized zones are hosted in the dolomitized Chambará 2 sub-unit of the Pucará Group carbonates, bracketed by the Coquina and Intact Bivalve Marker beds. Geologic mapping and modeling includes refining the extents of Chambará 2, and further defining the steeply dipping feeder structures to predict additional zinc-lead-silver mineralization.

Local and regional geologic mapping, geologic drillhole logs, and the dome-shaped geometry of the deposit suggest the mineralization is hosted in a broad anticline structure. Florida Canyon is the collective name of the deposits in the Project area in Florida Canyon, and includes the Karen- Milagros, San Jorge, Sam Fault zones and similar mineralized strata between these areas.

Modeled manto zones are between 1 m and 9 m thick and occur over an area of about 1 km x 3 km and are open in all directions. Unmineralized gaps exist within the mineralized manto zones, as is typical for hydrothermal replacement deposits. Irregular steeply dipping replacement bodies also occur, frequently at the intersection of vein-like feeder structures and in karst-controlled mineralization.

Mineralization outcrops locally in a number of areas, and have been drilled at depths of up to about 450 m below ground surface. Zinc mineralization occurs as massive sphalerite (ZnS), and is locally oxidized to smithsonite (ZnCO3) and hemimorphite (Zn4Si2O7 (OH)2). Lead occurs in galena (PbS), cerussite (PbCO3) and anglesite (PbSO4).

An area of 20 km x 100 km extending from Mina Grande to north to 80 km south of the Florida Canyon deposit has become the focus of what is an emerging Mississippi-Valley Type (MVT) zinc and lead province, with many surface occurrences and stream sediment anomalies distributed throughout the Pucará Group. The main host rock of zinc and lead occurrences in the mineral district and Project area is dolomitized limestone, which may show karst or collapse breccia textures.

The structure at Florida Canyon is dominated by a N50º-60ºW trending domal anticline (or doubly plunging anticline) (SRK, 2014b). This anticlinal structure results in potential mining blocks of the manto deposits oriented along shallow dipping footwall/floors with dips ranging from 0° at the hinge to 25° near the middle to outer edges of the dome. The dip is as steep as 50° in the south of the deposit near the San Jorge exploration adit. Additionally, two steeply dipping mineralized bodies have been interpreted to exist. The first, known as San Jorge (zone F1), is located at the southern end of the deposit, and the other, known as SAM (zones 2 and 3), is located on the southwest edge of the deposit. The dip of these bodies ranges from 60° to 85° in San Jorge and 55° to 80° in the SAM body.


Mining Methods

  • Cut & Fill
  • Drift & Fill
  • Longhole stoping
  • Cemented backfill


Summary:

Approximately 26% of the mining resource will be mined using longhole stoping in the SAM and F1 areas with the remaining mined using mechanized drift and fill and cut and fill. Cemented paste fill and cemented rock fill will be used to backfill primary stopes. Mine development waste will be used in secondary stopes with some secondaries backfilled with low-content cemented paste fill where required.

Longhole Stoping
Sublevels in the longhole areas will be developed at 16 m intervals. Stopes less than 8 m wide will be mined longitudinally (along strike) with stopes greater than 8 m wide mined transversely (perpendicular to strike). Ramp, main haulage, and cross-cut development will be in the footwall. Haulage drifts have been offset from the stopes by 20 m. Sill development in the mineralized zones will provide access for drilling, blasting, ground support, and mucking. Blasthole drilling will be from the top sill using top hammer drills. Broken material will be mucked from the bottom of the stopes using remote controlled Load Haul Dump units (LHD). Typical blast patterns will be drilled using 2.5 m (burden) x 2.0 m (spacing) ring patterns. It is expected that water will be present requiring blastholes to be charged with ANFO/emulsion blends as required for water resistance. Cut and fill mining blocks exist in the hangingwall and footwall in the F1 area. Consideration for good ground control and the influence of mining induced stresses has an impact on the sequence of mining in these areas. The production schedule described in this study has mining occurring from the hangingwall to footwall with cut and fill blocks in the footwall mined on retreat.

Drift and Fill, Cut and Fill
Mining of shallow dipping (less than 27°) accounts for 70% of mine production. Mining cuts measuring 4 m wide x a minimum 3 m high will be used to minimize dilution in thin areas. Stopes within a given manto or group of mantos will be developed from the bottom-up with each subsequent 3 m level developed above the mined-out and backfilled cut below. It will be possible to develop ramps and haulage drifts in the mineralized material where the dip of the mineralized zone allows a maximum 12% gradient. Stopes will also be able to follow the grade of the footwall up to a maximum allowable gradient of 15%.

Drill jumbos will be used to drill 45 mm holes with each round advancing 4 m. Blasting will primarily use ANFO/emulsion blends will be used as required.

Areas that require footwall waste development for stope block access will utilize access ramps with a maximum grade of 15%. Blocks of 12 to 16 m high will be mined using cuts of 3 to 4 m depending on the geometry of the mineralized material. Mining of cuts within a stope block will progress from the bottom to the top with lower cuts filled with cemented paste fill, cemented rock fill or development waste.

Large karst caverns have been encountered during the excavation of the San Jorge adit, and karstic features have been observed in drilling. Additional geotechnical and hydrogeological information and study is required to better understand the potential impact on mining and risk mitigation measures that may be required to ensure a safe working environment.

Mineralized material will be mucked using LHDs (4.5 to 6.5 m3), loaded onto 30 tonne trucks and hauled to the appropriate portal. The material will be crushed at the portal and transported to the processing facility via conveyor.


Crushing and Grinding


Processing

  • Flotation

Flow Sheet: Subscription required

Summary:

Given the location of the deposit, it is anticipated three underground portals will be producing mineralized material at any given time. Because of the challenging topography and road conditions, trucking Run-of-Mine (ROM) mineralized material would demand a lengthy route from the underground portals to the plant’s location. Instead, SRK has designed a set of conventional overland conveyors with a maximum slope of 20° to simplify the operation and significantly reduce the cost of transferring mineralized material from the mine portals to the process plant. A portable, primary jaw crusher is to be installed at each underground mine portal to ensure the ROM is adequately sized for the conveying system.

Florida Canyon mineralized material will be processed using a conventional concentration plant consisting of three stage crushing, grinding using a single-stage ball mill to 80% minus 44 microns, and differential flotation to produce two final products: a zinc concentrate and a ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Zinc Recovery Rate, % 80
Zinc Head Grade, % 8.34
Zinc Concentrate Grade, % 50
Lead Recovery Rate, % 74
Lead Head Grade, % 0.9
Lead Concentrate Grade, % 50
Silver Recovery Rate, % 52
Silver Head Grade, g/t 11.3

Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Zinc Metal in concentrate M lbs 1,643
Lead Metal in concentrate M lbs  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required
Zinc Payable metal M lbs 131
Lead Payable metal M lbs  ......  Subscription required
Silver Payable metal koz  ......  Subscription required

Operational Metrics:

Metrics
Daily mining rate 2,601 t *
Daily ore mining rate 2,076 t *
Annual mining capacity 912,500 t of ore *
Waste tonnes, LOM 2,828,197 t *
Ore tonnes mined, LOM 11,186,701 t *
Total tonnes mined, LOM 14,014,897 t *
Daily production capacity 287 t of zinc concentrate *
Daily production capacity 46 t of lead concentrate *
Daily processing rate 2,500 t *
* According to 2017 study.

Reserves at December 31, 2017:

CategoryTonnage CommodityGradeContained Metal
Measured 1,285 kt Zinc 13.13 % 372,200 k lbs
Measured 1,285 kt Lead 1.66 % 46,900 k lbs
Measured 1,285 kt Silver 19.42 g/t 800 koz
Measured 1,285 kt Zinc Equivalent 14.68 % 415,900 k lbs
Indicated 1,970 kt Zinc 11.59 % 503,500 k lbs
Indicated 1,970 kt Lead 1.45 % 63,200 k lbs
Indicated 1,970 kt Silver 17.91 g/t 1,130 koz
Indicated 1,970 kt Zinc Equivalent 12.95 % 562,700 k lbs
Measured & Indicated 3,256 kt Zinc 12.2 % 875,700 k lbs
Measured & Indicated 3,256 kt Lead 1.53 % 110,100 k lbs
Measured & Indicated 3,256 kt Silver 18.51 g/t 1,930 koz
Measured & Indicated 3,256 kt Zinc Equivalent 13.63 % 978,600 k lbs
Inferred 8,843 kt Zinc 10.15 % 1,978,900 k lbs
Inferred 8,843 kt Lead 1.05 % 204,900 k lbs
Inferred 8,843 kt Silver 13.21 g/t 3,760 koz
Inferred 8,843 kt Zinc Equivalent 11.16 % 2,174,800 k lbs

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Zinc USD 0.47 / lb *†
Total cash costs Zinc USD 0.51 / lb *†
All-in sustaining costs (AISC) Zinc USD 0.57 / lb *†
All-in costs Zinc USD 0.73 / lb *†
Assumed price Lead USD 1 / lb *
Assumed price Zinc USD 1.2 / lb *
Assumed price Silver USD 16.5 / oz *
* According to 2017 study / presentation.
† Net of By-Product.

Operating Costs:

Units2017
UG mining costs ($/t mined) USD 20.4 *
Processing costs ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2017 study.
Subscription required - Subscription is required.

2017 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
UG OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 144.1
G&A costs $M USD 39.2
Total OpEx $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of December 31, 2017:
HME TypeModelSizeQuantity
Drill (long hole) ....................... Subscription required 2
....................... Subscription required ....................... Subscription required ....................... Subscription required 3
....................... Subscription required ....................... Subscription required 6
....................... Subscription required ....................... Subscription required 4
....................... Subscription required ....................... Subscription required 6
....................... Subscription required ....................... Subscription required ....................... Subscription required 6
Subscription required - Subscription is required.

Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Form 10-K 2018
Technical Report 2017
Technical Report 2014
Subscription required - Subscription is required.

News:

NewsDate
Solitario Files New NI 43-101 Technical Report for Its Florida Canyon Zinc Project Detailing a Significant Increase in Mineral Resources April 7, 2021
Solitario Reports Significant Increase in Inferred Sulfide Resources For Its Florida Canyon Zinc Project February 23, 2021
Solitario Reports Final Results of the Florida Canyon 2019 Drill Program, Intersects Significant Zinc Grades and Thicknesses December 16, 2019

Aerial view:

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2020 MDO Data Online Inc.