boromo greenstone limit

Chemical and boron isotope composition of tourmaline …

2020-7-24 · Local geology and structural framework of the Kiaka deposit. The Kiaka orogenic gold deposit is located within an elongated volcano-sedimentary sequence known as the Manga Fada N''Gourma greenstone belt, which extends along 250 km from northeast to southwest (Hottin and Ouédraogo, 1976; Naba et al. 2004; Ganne et al. 2012).The deposit is located at the …

Juvenile Paleoproterozoic crust evolution during the ...

2011-11-1 · The growth mechanisms of Archean and Paleoproterozoic juvenile continental crust have been a topic of scientific debate for decades (Windley, 1992, de Wit and Ashwal, 1997, Condie, 1998, Condie and Pease, 2008).Many authors propose that plate tectonics existed back to the Mesoarchean (Cawood et al., 2006, Condie, 2008, Shirey et al., 2008, Foley, 2008), …

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 development focus of the Company.

(PDF) Tectonic evolution of Boromo and Houndé belts ...

Tectonic evolution of Boromo and Houndé belts (western Burkina Faso) : contemporaneous crustal scale folding of volcano-sedimentary sequences and granitoid plutons emplacement (~2.2 - 2.0 Ga)

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

Minerals | Free Full-Text | Role of Volcano-Sedimentary ...

Greenstone belts in the West African Craton (WAC) are separated by several generations of granitoids intruded at ca. 2.18–1.98 Ga. Simultaneous folding and exhumation play an important role in the formation of greenstone-granitoid …

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 -sediments, quartzites and arkoses.

Birimian lithological succession and structural evolution ...

The Boromo–Goren Greenstone Belt (BGGB) of Burkina Faso forms part of the Palaeoproterozoic Birimian Domain of the West African Craton. The Goren segment of this greenstone belt trends SE across the Yatenga, Bam, and Sanmatenga districts of Burkina Faso (Fig. 1) for a distance of approximately 140 km, and constitutes an arcuate extension to ...

Blueprint

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 outcroppings proximal to artisanal pits and workings. ... Samples in which ICP analyses returned greater than the maximum detection limit for the elements Ag (10 ppm), Cu (10,000 ppm), Fe (15%), Pb ...

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 …

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.

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 ...

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 outcroppings proximal to artisanal pits and workings.

Multistage gold mineralization in the Wa-Lawra …

Introduction. Greenstone belts all over the world have been prospective regions for orogenic gold deposits for many decades now (Davis and Zaleski, 1998), and account for an important amount of the world''s total gold production (a recent figure indicates about 13% of global production, corresponding to 15,920 metric tonnes of Au; Dubé and Gosselin, 2007).

Tectonic evolution of Boromo and Houndé belts (western ...

 · Interpretation of regional scale airborne geophysical data of western Burkina Faso integrated with structural, geochemical and petrological data suggest that the Boromo and Houndé belts were parts of the same volcano-sedimentary basin characterised by basalts and gabbros of tholeiitic composition at the base, evolving to calc-alkaline mafic and intermediate …

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 ...

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 ...

(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 …

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

2013-8-1 · The Poura mine is in the center of the Boromo-Goren greenstone belt that strikes in a northerly to northeasterly direction. It consists of andisitic/dacitic volcanics, volcano-sedimentaries such as tuff and agglomerate, and detrital sedimentary formations consisting of pelitic to conglomeratic rocks.

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 optimal target for development. According to Klenman ...

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 development focus of the Company.

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 ...

Tectonic evolution of the Gaoua region, Burkina Faso ...

2015-12-1 · The Gaoua batholith limits the Boromo belt to the west and partially to the north at its southern termination. Small granitoids also intrude the greenstone belt lithologies of the study area. A rhyolite included in the Boromo calc-alkaline volcanic sequence yields a date of 2171 ± 7 Ma (U–Pb on zircon; Castaing et al., 2003).

(PDF) Juvenile Paleoproterozoic crust evolution during the ...

We have investigated three greenstone belts (Boromo, Houndé, and Banfora) and associated granitoid terrains, which form part of the Eburnean orogen, situated in western Burkina Faso.

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.

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.

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) …

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 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 …

(PDF) A geophysically constrained litho-structural ...

A geophysically constrained litho-structural analysis of the Eburnean greenstone belts and associated granitoid domains, Burkina Faso, West Africa. Precambrian Research, 2011. Lenka Baratoux. Vaclav Metelka. mark jessell. Lenka Baratoux. Vaclav Metelka. mark …

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

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 …

The Nassara gold prospect, Gaoua District, southwestern ...

2016-10-1 · The Nassara gold prospect is located about 15 km south of the town of Gaoua, along the West-Batié Shear Zone (WBSZ) in the southern part of the Boromo Greenstone Belt (BGB) (Fig. 1, Fig. 2).Several gold and copper mineralizations were identified in this area, such as at Gongondy, Dienemera and Boussera, whereas only gold was found at Gomblora, Batié, and …

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