Çöpler District Exploration

Alacer’s exploration licenses surrounding the Çöpler Gold Mine span across a 17 km by 25 km area. The exploration licenses are managed under two separate joint ventures. Alacer owns 80% of the licenses adjacent to Çöpler Mine under the Anagold Madencilik Sanayi ve Ticaret A.S. JV and 50% of the remaining licenses in the Çöpler District under the Kartaltepe JV, both in partnership with Lidya Madencilik Sanayi ve Ticaret A.S.

Operations Map

Alacer Gold announced an initial mineral resource in the Çöpler District on December 19, 2016. Further information on this resource is available in the “Alacer Gold Announces Additional Exploration Results for Çakmaktepe and an Initial Mineral Resource in the Çöpler District” press release.

Mineral Resource for Çöpler Near-Mine Deposits (As of December 31, 2016)
Material Type
Resource Category Material
Tonnes (x1000)
Au (g/t)
Ag (g/t)
Contained Au Ounces
Çakmaktepe & Bayramdere

Measured + Indicated

Mineral Resources that are not Mineral Reserves have not demonstrated economic viability. Mineral Resources are shown on a 100% basis, of which Alacer owns varying amounts ranging from 50% to 80%. Alacer’s attributable Measured and Indicated portion is 72,460 contained ounces and 11,730 Inferred contained ounces. Rounding differences will occur. The appendices to this announcement provide information on the data, assumptions and methodologies underlying these estimates.

On December 19, 2016, an initial Measured and Indicated Mineral Resource of 140,000 ounces and an Inferred Mineral Resource of 24,000 ounces for Çakmaktepe and Bayramdere were announced along with the fourth set of exploration drill results for Çakmaktepe. Mineralization has been identified in several prospects that can potentially be mined as a series of satellite open pits within 5 km to 7 km of the existing Çöpler Mine facilities. The mineralization style is similar to the Çöpler Deposit and is expected to be processed through the existing facilities. The mineralized system is currently open, providing the potential for additional Mineral Resources. The prospects of particular focus are Çakmaktepe North, Çakmaktepe Central, Çakmaktepe Southeast, Çakmaktepe East, and Bayramdere and have the potential to add to the oxide production in 2018. Exploration work at Çakmaktepe continues and construction of the access road commenced in Q2 2017.


The Çakmaktepe North prospect is a relatively new discovery and is located on the 50% Alacer-owned (Kartaltepe) tenement area. Currently, Çakmaktepe North is the largest of the defined gold prospects within the Çöpler District. The drilling conducted in the first half of 2016 included infill drilling and expanded on the initial 2015 discovery. The Çakmaktepe area contains a network of structures allowing gold mineralization to occur within multiple lithologies.

The current understanding is there are multiple controls on mineralization with strong epithermal textures and associated structural overprints. Similar to the other Çakmaktepe prospects, there is gossan hosted mineralization occurring along ophiolite and limestone contacts. The main body of mineralization appears to be associated with a sub-vertical shear zone referred to as the ‘Main Shear’. In places, this domain is over 40m wide with a mineralized strike length of about 700m. 

The Çakmaktepe Southeast prospect is on the 80% Alacer-owned (Anagold) tenement area and is characterized by gold-copper-silver mineralization, mainly hosted within iron rich gossans and altered wallrock developed along shallow dipping contacts between diorite, ophiolite, and limestone lithologies. Most of the mineralization is oxidized and occurs from 0m to 50m of surface. Drilling has defined mineralization over an area of 350m by 300m within a single near surface flat lying gossan, which was found to have variable gold grade continuity with a thickness from 2m to 16m. Metallurgical test work has defined the mineralization as having similar leach recovery characteristics to Çöpler oxide ore and that this material is suitable for processing at the Çöpler Mine.

The Çakmaktepe East prospect is on the 50% Alacer-owned (Kartaltepe) tenement area and is a gold-copper prospect with mineralization occuring near surface in stacked iron rich gossans and associated oxidized host rocks. As with the Çakmaktepe Southeast prospect, the majority of mineralization occurs along the contacts of diorite, ophiolite, and limestone lithologies with the highest grades in proximity to diorite contacts. The majority of mineralization is within 50m of surface, and the prospect currently has a 300m strike extent and is 150m wide across-strike. The mineralized gossans have good spatial and grade continuity; however, preliminary metallurgical test work indicates slightly lower leach recoveries than Çöpler oxide ores. Further metallurgical test work using more characteristic ore domains will confirm ore recovery characteristics.

The Bayramdere prospect is on the 50% Alacer-owned (Kartaltepe) tenement area and is an oxide gold and copper prospect. Mineralization at Bayramdere occurs within three overlapping, iron rich gossan horizons formed along the contacts of limestone and ophiolite units. Unlike Çakmaktepe East and Çakmaktepe Southeast, there is no obvious influence of diorites on mineralization in the stratigraphy. Gold grades are higher than Çakmaktepe, but are restricted to localized areas of gossan. The mineralization is stratigraphically constrained and daylights on the northern and western slopes of the prospect. Metallurgical test work completed shows better oxide ore leach recovery characteristics than Çöpler. Although a small prospect, Bayramdere is higher-grade and supports a high strip ratio to access mineralization.

The Bayramdere and the Çakmaktepe prospects are geologically connected, as they are adjacent to and on the southwestern side of a major northwest striking regional structure that appears to control the distribution of most mineralization on the eastern side of the Çöpler District. 

The Anagold JV license area covers exploration targets prospective for additional oxide ore with the same mineralization style as the Çöpler orebody.

The Kartaltepe JV license area primarily covers the 13 km long north-south trending mineralized belt on the eastern margin of the Çöpler District. During 2013, drilling intercepted encouraging oxide gold mineralization at the Bayramdere and Çakmaktepe prospects. Bayramdere’s high-grade zone is a horizontal near-surface tabular oxide body along a low-angle thrust fault between serpentines and limestones. Çakmaktepe's oxide gold mineralization is generally found near the contact zones between geological units.

The Karakartal prospect contains a copper-gold porphyry system and nearby gold anomalies. An initial Mineral Resource for Karakartal was estimated in 2009. Further information on this resource is available in the “Preliminary Estimate of Mineral Resources Karakartal Project, East Central Turkey”.

Additional Çakmaktepe Central Drilling

The Çakmaktepe Central prospect located on the 50% Alacer-owned (Kartaltepe) tenement area was recognized as an important new high-grade oxide gold source late in the 2016 exploration drilling season. Shallow extension drilling following Çakmaktepe North mineralization to the south and east intercepted increasing grades and strong mineralization continuity near surface in the area now referred to as Çakmaktepe Central. The mineralization outcrops and dips shallowly eastward with development of thicker high grade mineralization zones proximal to a newly discovered gold mineralized porphyry intrusive. Given the position of the porphyry between Çakmaktepe North, East, and Central, it is likely responsible for the mineralized dykes, sills, and fluids associated with mineralizing and/or the increasing grade of these deposits. The occurrence of the mineralized porphyry enhances the prospect for further discovery at Çakmaktepe as there is potential for further oxide mineralization associated with the porphyry.

Ckmaktepe Additional Drilling SM

Çakmaktepe Central Significant Assays: Significant gold assays drilled June 1, 2016 to November 15, 2016. Assays from intervals >10m and >1g/t gold only. Blue hole collars represent drilling previously reported. Red hole collars represent drilling covered in this news release. The red outline marks the footprint of the USD1,400 per gold ounce 2016 Çakmaktepe North resource pit shells. Northern Çakmaktepe Central included as part of 2016 Çakmaktepe North Mineral Resource.

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