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Man Shield

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Journal Article
Published: 01 March 2006
Bulletin de la Société Géologique de France (2006) 177 (2): 105-121.
... with the structural context, in the regional tectonomagmatic history. We determine the magmatic features of the volcanics and their geotectonic significance. Extended comparisons are made with other Birimian volcanic formations of the Man Shield. This allows to discuss a geodynamic scenario for the Palaeoproterozoic...
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Image
Map of the southern part of the West-African Craton (<b>Man</b> <b>Shield</b>) showing th...
Published: 01 March 2006
F ig . 1. – Map of the southern part of the West-African Craton (Man Shield) showing the main Birimian greenstone belts and sedimentary basins, and location of the Katiola-Marabadiassa area. F ig . 1 – Carte de la partie sud du craton ouest-africain (Bouclier de Man) montrant les principales
Journal Article
Published: 01 November 2012
Journal of the Geological Society (2012) 169 (6): 681-689.
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Journal Article
Published: 01 March 2017
South African Journal of Geology (2017) 120 (1): 77-100.
... mineralogical and geochemical features. Compositions of CGM are variable: Fe-rich types predominate in the Man Shield (Sierra Leone), the Congo Craton (DR Congo), the Kamativi Belt (Zimbabwe) and the Jos Plateau (Nigeria); Mn-rich columbite-tantalite is typical of the Alto Ligonha Province (Mozambique...
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Journal Article
Journal: Geology
Published: 01 December 2015
Geology (2015) 43 (12): 1071-1074.
... the Archean Man Shield, Sierra Leone, West Africa, provide new evidence bearing on the origin of cratonic eclogites. Garnet and clinopyroxene in both low-MgO and high-MgO eclogites generally record equilibrium inter-mineral Mg isotope partitioning, with δ 26 Mg varying from –2.15‰ to –0.46‰ in garnets...
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Journal Article
Journal: Economic Geology
Published: 01 June 2015
Economic Geology (2015) 110 (4): 851-856.
...Stephen E. Haggerty Abstract Diamond-bearing kimberlite dikes (fissures) are present in the deeply eroded Man Shield of West Africa. Small kimberlite pipes, generally less than 1 hectare in area, are known in Guinea, Sierra Leone, and Liberia. Exploration for larger bodies has been severely...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP323.11
EISBN: 9781862395718
... Palaeoproterozoic rocks of the Man-Leo Shield crop out in nine countries of West Africa (Fig.  2 a): Burkina Faso, Ivory Coast, Ghana, Guinea, Liberia, Mali, Niger, Senegal and Togo. The general constitution shows plutono-volcanic and sedimentary rocks deformed and weakly metamorphosed...
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Journal Article
Published: 09 October 2019
Seismological Research Letters (2019)
... geophone has been recently constructed, shielded in a hyperbaric container, and installed offshore for test in Brittany (France) in April 2018, with an improved control system. Its record of the marine ambient noise matches those of a collocated commercial broadband seismometer for periods up to 50 s...
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Journal Article
Published: 01 December 2010
Journal of the Geological Society (2010) 167 (6): 1147-1160.
... Formation, is the oldest detrital zircon yet found in the British Isles and shows a similar age to zircons dated in Palaeoarchaean rocks. For example, Peltonen et al. (2006 ) reported the presence of 3.5 Ga zircons in the Karelian craton (Baltic–Fennoscandian Shield) and suggested that they record a 3.5...
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Journal Article
Published: 01 October 2019
American Mineralogist (2019) 104 (10): 1365-1368.
... of Earth and Planetary Sciences , 35 , 313 – 347 . Kasting , J.F. , and Ackerman , T.P. ( 1986 ) Climatic consequences of very high carbon dioxide levels in the Earth's early atmosphere . Science , 234 , 1383 – 1386 . Kelemen , P.B. , and Manning , C.E. ( 2015...
FIGURES
Journal Article
Published: 07 March 2017
Journal of the Geological Society (2017) 174 (4): 609-626.
... and reheating much of the basement that is at present exposed. Afterwards, deposition and volcanism were mostly confined to its current limits. Regional exhumation of the shield during the Permo-Triassic exposed much of the northern portion of the basement, and the south was further affected by the opening...
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Journal Article
Published: 16 December 2011
Geological Magazine (2011) 149 (5): 783-797.
...K. ALI; A. ANDRESEN; W. I. MANTON; R. J. STERN; S. A. OMAR; A. E. MAURICE Abstract The calc-alkaline, gneissic El Shalul granite is the westernmost gneiss dome or core complex within the Arabian–Nubian Shield. Previous studies have indicated that it represents either a window into the underlying...
Journal Article
Journal: Geology
Published: 01 March 1997
Geology (1997) 25 (3): 271-274.
Journal Article
Published: 01 August 1987
Journal of the Geological Society (1987) 144 (4): 569-575.
... craton Contributions to Mineralogy and Petrology 1979 68 429 39 Dixon T. H. Age and chemical characteristics of some pre-Pan-African rocks in the Egyptian Shield Precambrian Research 1981 14 119 33 Duyverman H. J. Harris N. B. W. Hawkesworth C. J. Crustal...
Journal Article
Journal: Economic Geology
Published: 01 January 2017
Economic Geology (2017) 112 (1): 123-143.
... are concentrated within the 2250 to 2000 Ma greenstone belts of the Man-Leo shield, forming the southern part of the West Africa craton. Most of the major orebodies are best classified as orogenic gold deposit types, although there are paleoplacer and porphyry-skarn deposits within some of the greenstone belts...
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Journal Article
Published: 03 May 2017
Seismological Research Letters (2017) 88 (4): 956-962.
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Journal Article
Published: 01 April 2005
Bulletin of the Seismological Society of America (2005) 95 (2): 446-470.
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Series: Geological Society, London, Special Publications
Published: 01 January 2004
DOI: 10.1144/GSL.SP.2004.221.01.06
EISBN: 9781862394698
Journal Article
Published: 01 July 2016
Vadose Zone Journal (2016) 15 (7): vzj2015.11.0142.
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Journal Article
Journal: Geophysics
Published: 24 October 2014
Geophysics (2014) 79 (6): T323-T339.
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