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Ashanti Belt

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Series: Geological Society, London, Special Publications
Published: 01 January 2005
DOI: 10.1144/GSL.SP.2005.248.01.05
EISBN: 9781862394964
... Abstract The region of the gold-rich Ashanti belt in southern Ghana was chosen as the subject for a detailed regional thermal modelling study. Geological studies, in addition to laboratory measurements of thermal properties and heat-production rates, allow us to constrain a finite-element...
FIGURES | View All (7)
Journal Article
Journal: Economic Geology
Published: 01 April 1996
Economic Geology (1996) 91 (2): 289–301.
...Thomas Oberthuer; Andreas Schmidt Mumm; Ulrich Vetter; Klaus Simon; Joe A. Amanor Abstract The Ashanti belt of Ghana is the key district of gold mineralization in the Paleoproterozoic terrane of West Africa. The area considered in southwest Ghana is covered by lithologies of the volcanic...
Journal Article
Journal: Economic Geology
Published: 01 February 1996
Economic Geology (1996) 91 (1): 135–148.
...A. H. Mumin; M. E. Fleet; F. J. Longstaffe Abstract The oxygen and carbon isotope systematics of ankerite, siderite, calcite, quartz, and graphite from the Bogosu and Prestea mining districts of the Ashanti gold belt, Ghana are used to speculate on the processes leading to hydrothermal alteration...
Image
A. Simplified geologic map of the <span class="search-highlight">Ashanti</span> <span class="search-highlight">belt</span>, southwest Ghana, (after  Ag...
Published: 01 January 2017
Fig. 6 A. Simplified geologic map of the Ashanti belt, southwest Ghana, (after Agyei et al., 2009 ). B. Stratigraphy for the southwest of Ghana proposed by Perrouty et al. (2012) .
Image
Simplified stratigraphic column of the <span class="search-highlight">Ashanti</span> <span class="search-highlight">belt</span>.
Published: 01 January 2017
Fig. 2 Simplified stratigraphic column of the Ashanti belt.
Image
A. Simplified geologic map of the <span class="search-highlight">Ashanti</span> <span class="search-highlight">belt</span>, southwest Ghana, (after  Ag...
Published: 01 January 2017
Fig. 6 A. Simplified geologic map of the Ashanti belt, southwest Ghana, (after Agyei et al., 2009 ). B. Stratigraphy for the southwest of Ghana proposed by Perrouty et al. (2012) .
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2020
DOI: 10.5382/SP.23.06
EISBN: 9781629496429
... with the older Eoeburnean Ashanti belt to the east. Greenschist facies metamorphism was coeval with mineralization and related alteration at ~2095 Ma. The steeply dipping, ENE-plunging lodes extend over an 8-km strike length and to depths of >2.5 km. They include paragenetically complex gold-rich quartz veins...
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a. Schematic overview of the geology of the southern part of the West Afric...
Published: 01 January 2017
to the contact with the Ashanti belt in the vicinity of an intersection between two major faults, the Akropong and Ashanti faults. c. Obuasi district geology. The Binsere and Gyabunsu trends and the main Obuasi deposit share the same strike (modified from Allibone et al., 2012). Positions of cross section
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F ig . 15. Sulfur isotope compositions of sphalerite (sp),
pyrite (py), and...
Published: 01 November 2003
in the Ashanti belt in Ghana is shown for comparison ( Oberthür et al., 1996 ).
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F ig . 3. Photomicrographs of the major fluid inclusion types in vein quart...
Published: 01 November 2001
2 ± CH 4 fluid inclusions; MP = Mporhor prospect in the Ashanti belt. MT = Mpesetia prospect in the Asankrangwa belt; OA-PQ-13No19, OA-PQ-14No4 = borehole samples from the Abore North prospect in the Asankrangwa belt; DU = Dokrupe mine in the Bole-Navrongo belt; SA = Sakpa mine in the Bole
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2002
DOI: 10.5382/SP.09.04
EISBN: 9781629490335
... in the Ashanti area is greenschist to upper green-schist facies. Amphibolite facies metamorphic grades are attained locally in narrow contact aureoles around granitoid plutons, rare elongate but narrow zones along some of the major faults, and widely in the southern part of the Ashanti belt ( Leube and Hirdes...
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A. Simplified map of the West African craton with distribution of gold depo...
Published: 01 January 2017
= Kédougou-Kénébia Inlier, 7 = Rokelides, 8 = Bassarides, 9 = Mauritanides. B. Zoom on the southern part of the West Africa craton (modified after the BRGM SIG Afrique map, Milesi et al., 2004), outlining the main shear zones, the gold deposits (yellow stars), and the Cu deposit (blue star). AS = Ashanti
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F ig . 6. T m(CO 2 ) , T m(clathrate) , T h(CO 2 ) , T h , and T d  histogr...
Published: 01 November 2001
, AY = Ayanfuri, Kumasi basin, BO = Bole-Navrongo belt, MP = Mporhor, Ashanti belt, OB = Obuasi, Kumasi basin. Abbreviations as in Figure 2 .
Journal Article
Journal: Economic Geology
Published: 01 May 2004
Economic Geology (2004) 99 (3): 479–497.
... Ashanti and Bogoso deposits, located on the western margin of the Ashanti belt ( Fig. 1 ), formed during sinistral reactivation of the host fault network late in the Eburnian 2 orogeny (ca. 2116–2088 Ma; Allibone et al., 2002a , b ). Individual ore shoots and the deposits as a whole developed...
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(A) Compilation of δ 34 S values from sulphides (thin bars) and rare barite...
Published: 02 April 2000
and steep lodes; b, flat lodes. Lakeview: a, b, and c represent compositions of sulphides from lodes in the Golden Mile Dolerite, Paringa basalt, and interflow sedimentary units, respectively. Ashanti Belt: a, unmineralized schist; b, sulphides in ore; c, calculated fluid composition. (B) Compilation
Journal Article
Journal: Economic Geology
Published: 01 January 2017
Economic Geology (2017) 112 (1): 3–22.
...Fig. 2 Simplified stratigraphic column of the Ashanti belt. ...
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Journal Article
Journal: Economic Geology
Published: 01 November 2001
Economic Geology (2001) 96 (7): 1611–1643.
... 2 ± CH 4 fluid inclusions; MP = Mporhor prospect in the Ashanti belt. MT = Mpesetia prospect in the Asankrangwa belt; OA-PQ-13No19, OA-PQ-14No4 = borehole samples from the Abore North prospect in the Asankrangwa belt; DU = Dokrupe mine in the Bole-Navrongo belt; SA = Sakpa mine in the Bole...
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