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Turkiye

Halilaga Project

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Categories

Overview

Mine TypeOpen Pit
StagePreliminary Economic Assessment
Commodities
  • Copper
  • Gold
  • Molybdenum
Mining Method
  • Truck & Shovel / Loader
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Mine Life... Lock
SnapshotCengiz Holdings A.S. aims to promote regional economic development and help meet Turkey’s copper demand through its Halilaga Copper Mine. Adopting a sustainable mining approach, the company plans to operate without utilizing groundwater, potentially making it the only industrial entity in the region to do so.

Through its subsidiary, Truva Madencilik, the company has expanded the Halilaga Copper Mine project area from 600 to 6,000 hectares in Hacibekirler village, Bayramic district. However, this significant expansion has raised concerns among local communities and environmental organizations over potential ecological impacts.

Owners

SourceSource
CompanyInterestOwnership
Cengiz Holdings A.S. 100 % Indirect
The Halilaga Project is 100% owned by Truva Bakir Maden Isletmeleri A.S., a subsidiary of Cengiz Holdings A.S.

Deposit type

  • Porphyry
  • Epithermal

Summary:

Halilaga is classified as a copper-gold porphyry system. Advanced argillic alteration and gold mineralization at Kunk Hill and Pirentepe are classified as high sulphidation epithermal mineralization. Copper mineralization in the Bakirlik Tepe area is classified as proximal copper skarn. All three types are related to magmatic-hydrothermal activity associated with intrusion of the Kestane porphyry stock and other intrusions in the area.

The geology of Halilaga is characterized by various lithological associations made up of: (1) Paleozoic and early Mesozoic basement metamorphic rocks; (2) Permian and Mesozoic sedimentary and ophiolitic rocks; (3) Tertiary volcanic and intrusive rocks; and (4) Neogene sedimentary rocks. Older rocks are affected by several collisional orogenic events. Tertiary rocks record mainly brittle extensional and transtensional deformation.

The property is located in a district with significant potential for both porphyry copper-gold and high-sulphidation-style gold deposits. Investigation of geological relationships in the field along with geochemical and geochronological data suggest that magmatic activity began with the intrusion of granitoids, coeval with an early phase of volcanic activity, and was superseded by a second phase of volcanism. The mineralized intrusives are thought to be part of a suite of 26 to 38 million year old (Ma) quartz monzonites and granodiorites.

The Halilaga district is mainly underlain by Oligo-Miocene volcanic and-sedimentary rocks overlying a basement of schist and carbonate rocks which outcrop to the southeast of the Bakirlik area. Granodioritic stocks intrude the basement rocks, giving rise to metasomatism and skarnification. The Kestane porphyry stock, the main host rock to the Halilaga porphyry system, has a pronounced hornfelsed halo.

The Halilaga Project is centered on a large mineralized system containing porphyry copper-gold, skarn and high-sulphidation gold mineralization with related alteration assemblages extending over an area of more than 4 km by 2 km. The Kestane porphyry stock is characterized by potassic alteration (K-feldspar-biotite-magnetite) overprinted by phyllic (quartz-sericite-pyrite) alteration. Most quartz veins are B-type that average 5% of the rock by volume. A-type veinlets are rare but locally present. Chalcopyrite and pyrite are the dominant sulphide minerals. The highest gold and copper grades in drill core are associated with early biotite + magnetite + chalcopyrite associated with dense array of A- and B-type quartz veins, overprinted by phyllic alteration. In places the mineralization has been subject to near surface oxidation and leaching to form supergene chalcocite.

At higher elevations to the south of Kestane, the Kunk-Kumlugedik hilltops are characterized by advanced argillic alteration (quartz-alunite-dickite) surrounded by zones of argillic and propylitic alteration. Skarn-related alteration (magnetite-epidote) is located to the southeast of Kestane in the Bakirlik and Bostanlikbasi areas.

The geology of the Halilaga area is affected by post mineral faults of the North Anatolian Fault System characterized by ENE-WSW strike-slip faults, with subsidiary WNW-ESE striking faults.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

CommodityUnitsAvg. Annual
Copper t 18,000
All production numbers are expressed as metal in concentrate.

Operational metrics

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

Production Costs

Commodity production costs have not been reported.

Project Costs

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.

Aerial view:

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