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boromo greenstone limit

A geophysically constrained litho-structural analysis of ...

2011-10-1 · The Boromo-Poura shear zone corridor changes its orientation from ∼N-S in its southern and central parts to NE-SW direction in its northernmost segments. In its central part, the Banfora greenstone belt is affected by the belt parallel Greenville-Ferkessedougou-Bobo Dioulasso shear zone (GFBSZ) (Fig. 1, Fig. 7) first recognized by Lemoine ...

Gondwana Gold Commences 2012 Exploration Program | …

2012-1-12 · Gondwana Gold Inc. (GON.V) today announced its 2012 exploration program for Burkina Faso. Work is set to begin in January, under the direction of.

Nexus Gold Mobilizes Crew & Drilling Equipment to 2nd …

2017-6-8 · The 38-sq kilometre property sits on the Boromo-Goren greenstone belt, and is bisected by the Sabce shear zone. The phase one diamond drill program at Bouboulou will include 2000 metres targeting known previously identified mineralized zones. The …

Juvenile Paleoproterozoic crust evolution during the ...

2011-11-1 · In an attempt to model a shallower limit to the greenstone belts of 5–7 km, we had to introduce a significant amount of dense material (ρ > 3.2 g/cm 3) underneath the basalts. The systematic dip of the units to the east at an average angle of 70°, supported in particular by the easterly shift of gravity highs with respect to the high ...

Alex Woolfe 303604

2014-4-9 · and volcanic sequences. The meta-volcanic sequences in the Goren greenstone belt and Boromo greenstone belt are at dated at 2238 ± 5 Ma and 2171 ± 7 Ma respectively (Castaing et al., 2003) based on Pb-Pb zircon dating from rhyolites within the belts. The

ASX/MEDIA ANNOUNCEMENT MONDAY, 21ST JULY 2008 Fo…

 · Finally, the Boromo belt is affected along all its length by a connected system of anastomosing subvertical shear zones, some of them representing the limit between the greenstone and granitoids. Additionally, tight isoclinal folds in the Houndé belt indicating E-W compression during the Eburnean orogeny are clearly visible on the PCA image.

Sarama Resources Ltd.: Sarama Resources Reports ...

2020-8-9 · Sarama''s Sanutura Project, in which the Company holds a interest, is located within the prolific Houndé and Boromo Greenstone Belts in south-west Burkina Faso and is the exploration and ...

Sarama Resources Reports Significant Increase in Mineral ...

2020-9-8 · Sarama''s Sanutura Project, in which the Company holds a interest, is located within the prolific Houndé and Boromo Greenstone Belts in south-west Burkina Faso and is the exploration and development focus of the Company. ... Assay methods have a lower detection limit of at least 0.01 g/t Au. Structure, lithology, alteration, mineralisation

Goldrush Intersects 4.49 g/t Gold Over 17 Metres and 1.64 ...

2012-2-9 · The Ronguen gold deposit is located within the northeastern part of the highly prospective Birimian age Boromo greenstone belt in Burkina Faso. The local geology at Ronguen is dominated by an east northeast ("ENE") trending metasedimentary sequence consisting of interlayered siltstone, mudstone and minor conglomerate that are intruded by plugs ...

Nexus Gold schnappt sich Projekt im Red Lake-Distrikt ...

Permit covers 178 square kilometres and is located on the Boromo Greenstone Belt. Gold-in-soil samples up to 34 g/t Au. Rock samples have returned values up to 18 g/t Au.

Sarama Resources Reports Significant Increase in Mineral ...

2020-9-8 · Sarama''s Sanutura Project, in which the Company holds a interest, is located within the prolific Houndé and Boromo Greenstone Belts in south-west Burkina Faso and is the exploration and ...

Major Mines & Projects | Karma Mine

The OSZ extends from the south into Boromo Greenstone Belt and branches in the Karma project into a series of north-east trending sub-shears reactivated during the Eburnean Orogeny between 2,130 and 1,980 Ma. ... Laterites and sand cover limit the extent of bedrock outcrop in the project area and have limited the geological understanding of the ...

Sarama Resources Issued Djarkadougou II Permit Hosting ...

2021-8-12 · VANCOUVER, BC / ACCESSWIRE / August 12, 2021 / Sarama Resources Ltd. ('' Sarama '' or the '' Company '') is pleased to report that it has been issued (5) the Exploration Permit for the Djarkadougou II Property ('' Djarkadougou II '' or the '' Property '') which covers 169km 2 and hosts the high-grade Bondi Deposit and several high-quality exploration targets. The Property forms part of …

Significant Gold Intercepts from Drilling at Yako, Burkina ...

2012-7-23 · The Yako Project is located in the highly prospective Boromo greenstone-belt in northern Burkina Faso in close proximity to a number of major gold deposits, including an operating gold mine. Riverstone Resources Inc''s (TSX: RVS) 2.7Moz Karma Project lies in the permits immediately adjoining the western and northern boundaries of Yako.

(PDF) New geological and tectonic map of …

Finally, the Boromo belt is affected along all its length by a connected system of anastomosing subvertical shear zones, some of them representing the limit between the greenstone and granitoids.

Nexus Gold CEO: Burkina Faso is a Great Mining ...

2019-3-18 · The Nexus Gold Bouboulou concession is located on the Boromo-Goren Greenstone Belt with multi-million-ounce deposits on all sides, making it an …

Sarama Resources Ltd.: Sarama Resources Issued ...

2021-8-12 · Sarama''s owned Sanutura Project is located within the prolific Houndé and Boromo Greenstone Belts in south-west Burkina Faso and is the exploration and …

Calc-Alkaline Magmatism at the Archean–Proterozoic ...

Most Archean K 2 O-rich granites with the isotopic signature of a mantle-derived source were emplaced at the end of the Archean (2·8–2·5 Ga), and intruded both greenstone belts and TTGs. They are also referred to as ''sanukitoids'' (Stern, 1989 ; Stern & Hanson, 1991 ; Smithies & Champion, 1999 ) or ''Closepet-type'' granites (Moyen et ...

Sandstorm Gold Royalties Provides Corporate and Asset …

2018-7-16 · The Niangouela property covers 178 square kilometres and is located on the Boromo greenstone belt. The property contains numerous quartz veins and …

EX-1.8

2019-4-2 · Samples at both labs are analysed using 50-g fire assay procedure with an AA finish with a lower detection limit of 0.01 ppm gold. At ALS-OU, upper detection limit is set at 100 ppm whereas at SMF-Lab, samples grading over 15 ppm gold are re-assayed using a 50-g fire assay procedure with gravimetric finish.

Agoracom: Small Cap Investment

2021-8-5 · 1,130 km2 project covering a 50km strike of Burkina greenstone belt; Located at the confluence of the Hounde, Poura and Boromo belts which host a collective endowment in excess of 40 million ounces and multiple world class gold mines. Two advanced targets requiring minimal additional work before commencement of resource definition drilling.

The boring billion: about Proterozoic porphyry copper ...

2017-1-27 · ) limit As (mol%) 1.E-02 1.E-03 1.E-04 1.E-05 1.E-06 1.E-07 1.E-08 1.E-09 1.E-10 1.E-11 1.E-09 1.E-08 1.E-07 1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 Porphyry deposits Orogenic deposits 10 100 1000 10000 100000 1000000 10000000 100000000 1000000000

Using Geostatistics to Estimate the Resources of a Narrow ...

2013-8-1 · Using a cut-off grade of 5.0 g/tonne, the resource consists of 464,000 tonnes with an average grade of 14.9 g/tonne. A previous resource estimate had been carried out using arithmetic methods. Block kriging estimated the average grade to by 2.5 g/tonne higher and the total amount of …

Sarama Resources Issued Djarkadougou II Permit Hosting ...

2021-8-12 · Sarama''s owned Sanutura Project is located within the prolific Houndé and Boromo Greenstone Belts in south-west Burkina Faso and is the exploration and …

Crustal structure of southern Burkina Faso inferred from ...

2017-10-6 · greenstone belts (Fig. 1), defined from west to east as the Banfora, Houndé and Boromo belts (Castaing et al., 2003). Each of them exhibits a similar stratigraphic sequence consisting of basalts and andesites at the base and evolving into volcano-sediments towards the top (Baratoux et al., 2011). The Banfora belt is separated into two parts by

Zircon Trace Element Constraints on the Evolution of the ...

2017-6-12 · The Paleoproterozoic Birimian granitoids of the West African Craton (WAC) in the northwestern part of Ghana, have been studied for their zircon trace elements concentrations to infer the source characteristics, origin, and magmatic evolution. The zircons in the granitoids have Th/U ratios ranging from 0.03 to 1.55, and display depleted light rare earth elements (LREE) and enriched heavy …

Lower crust exhumation during Paleoproterozoic …

the N -S Wa-Lawra belt (Fig. 2), which is the south- eastern continuation of the Boromo greenstone belt exposed in Burkina Faso (Baratoux et al., 2011; Metelka et al., 2011). Similar low -grade lithologies are found in the E -W trending Julie belt (Fig. 2), which also comprises si licic volcano …

Minerals | Free Full-Text | Invisible Gold Paragenesis and ...

This maximum limit of invisible gold, from pyrite formed in the temperature range of 150 to 250 °C, is approximately 100 ppm Au for 2000 ppm As, ... The deposit is a disseminated pyrite concentration in altered volcaniclastics and basalts on the western margin of the Boromo Greenstone …

GOLD POTENTIAL OF BATIE WEST ENHANCED BY …

2009-3-5 · along the 110 kilometre long sheared south-western limits of the Boromo Greenstone Belt within Burkina Faso, which is bound by the countries of Ghana to the east and Cote d''Ivoire to the south. 2 Suite 23, 513 Hay Street Ampella Mining Ltd Phone: +618 9388 8812