Tocantinzinho Royalty

- Eldorado Gold Corp. -

Operator: Eldorado Gold Corp.

Metal(s): Gold

Technical Report: Eldorado's Tocantinzinho Project Presentation

Key Facts

Location: Para State, Brazil
Mine type: Open pit with a mill
Expected mine life: ~10 years (based on current proven and probable reserves)

Geology and Mineralization

Tocantinzinho is an intrusion-related gold deposit hosted in Paleoproterozoic granites of the south-central Amazon Craton. The deposit is located along a major regional NW trending fault zone which at the deposit scale controls the emplacement of multi-phase intrusions and gold mineralization. A wide range of fractionated granitic phases are recognised including quartz monzonite, syenite, alkali feldspar granite, granite and aplite. The deposit displays spectacular magmatic-hydrothermal transition textures such as unidirectional solidification textures, interconnected miarolitic texture (IMT), rapid grain size variations from pegmatite to aplite, and vein dykes. The bulk of the ore is hosted in two main rock types. “Smokey” granite is pale pink-grey in colour and is mostly distributed in the core of the deposit. It varies from a coarse grained blebby texture (likely IMT) to equigranular granite. “Salami” granite has a strong pink-red colour and is an alkali feldspar granite with a blebby (IMT) texture and commonly transitions into aplite-pegmatite zones. Mineralization is characterized by fine, irregular vein networks of quartz, black chlorite, sulfide (pyrite, molybdenite, chalcopyrite) and calcite. The veinlets commonly develop along grain contacts and their irregular wormy nature suggests that they formed during late crystalllization of the host granite. 


Exploration

Exploration outside of the main Tocantinzinho deposit area is directed towards identifying drilling targets that might yield satellite mineralized bodies. To date, this work has included airborne magnetic and radiometric surveys, IP surveys, collection of outcrop and channel samples (mainly from artisanal workings), and extensive grid-based soil sampling programs.
 
Please refer to the corporate presentation posted on this website for details of the 3.5% NSR owned by Sailfish on Tocantinzinho.
 
More information on San Albino can be found on Eldorado's website at www.eldoradogold.com

 

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