Geology of the Monapo Klippe, NE Mozambique and its significance for assembly of central Gondwana

Macey, P.H.; Miller, Joanne A; Rowe, C. D.; Grantham, G.H.; Siegfried, Pete R.; Armstrong, Richard; Kemp, Jaco; Bacalau, J.

doi:10.1016/j.precamres.2013.03.012

Cited by 32 publications

(18 citation statements)

References 48 publications

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“…The possible locality of the suture zone in the India-Madagascar and northward continuity beneath the Phanerozoic cover of Arabia are after Collins et al (2007) and Allen (2007). Granulite localities (red diamonds) in East African Orogen are after (1) Coolen, Priem, Verdurmen, and Verschure (1982), (2) Maboko and Nakamura (1996) and Muhongo, Kröner, and Nemchin (2001), (3) Kroner et al (1997), (4) Macey et al (2013), (5) Möller , Mezger, and Schenk (2000), (6) Jöns and Schenk (2008), (7) Hauzenberger et al (2007), (8) and Collins, Clark, and Plavsa (2014); (9) Pant et al (2013), (10) Adachi et al (2013) and (11) Hokada et al (2013). Granulite localities (blue squares) in Kuunga Orogen are after (1): Kröner, Willner, Hegner, Jaeckel, and Nemchin (2001), (2) Johnson, Rivers, and De Waele (2005), (3) Hauzenberger, Bauernhofer, oinkes, Wallbrecher, andMathu (2004, Hauzenberger et al, 2007), (4) Küster, Utke, Leupolt, Lenoir, and Haider (1990) and Lenoir et al (1994), (5) Berger et al (2006), Collins (2006), Grégoire et al (2009 and Giese, Berger, Schreurs, andGnos (2011), (6) Markl, Bauerle, andGrujic (2000); (7) Jung, Jung, Kröner, and Kröner (2007), (8) Sajeev et al (2007) and (9) Fonarev, Konilov, and Santosh (2000), Santosh et al (2006) and …”

Section: Introductionmentioning

confidence: 99%

Late Neoproterozoic granulite facies metamorphism in the Menderes Massif, Western Anatolia/Turkey: implication for the assembly of Gondwana

Koralay

2015

Geodinamica Acta

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The Menderes Massif is a major polymetamorphic complex in Western Turkey. The late Neoproterozoic basement consists of partially migmatized paragneisses and metapelites in association with orthogneiss intrusions. Pelitic granulite, paragneiss and orthopyroxene-bearing orthogneiss (charnockite) of the basement series form the main granulite-facies lithologies. Charnockitic metagranodiorite and metatonalite are magnesian in composition and show calc-alkalic to alkali-calcic affinities. Nd and Sr isotope systematics indicate homogeneous crustal contamination. The zircons in charnockites contain featureless overgrowth and rim textures representing metamorphic growth on magmatic cores and inherited grains. Charnockites yield crytallization age of~590 Ma for protoliths and they record granulite-facies overprint at~580 Ma. These data indicate that the Menderes Massif records late Neoproterozoic magmatic and granulite-facies metamorphic events. Furthermore, the basement rocks have been overprinted by Eocene Barrovian-type Alpine metamorphism at~42 Ma. The geochronological data and inferred latest Neoproterozoic-early Cambrian palaeogeographic setting for the Menderes Massif to the north of present-day Arabia indicate that the granulite-facies metamorphism in the Menderes Massif can be attributed to the Kuunga Orogen (600-500 Ma) causing the final amalgamation processes for northern part of the Gondwana.

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Section: Introductionmentioning

confidence: 99%

Late Neoproterozoic granulite facies metamorphism in the Menderes Massif, Western Anatolia/Turkey: implication for the assembly of Gondwana

Koralay

2015

Geodinamica Acta

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“…Mieth & Jokat (2014) conclude that there is no aeromagnetic geophysical data in support of an inferred suture linking Lutzo Holmbukta with the Shackleton Range. Fitzsimons (2000) reflects a dominant 650-550 Ma orogen across the Nampula Terrane of northern Mozambique; however, subsequent data from that area (Grantham et al 2008;Bingen et al 2009;Macey et al 2010) have reported a dominantly Mesoproterozoic basement which has a metamorphic overprint of <570 Ma with ages >600 Ma only recorded in granulite-grade klippen (Grantham et al 2013;Macey et al 2013).…”

Section: A East African Orogenymentioning

confidence: 97%

The structural evolution of the Straumsnutane and western Sverdrupfjella areas, western Dronning Maud Land, Antarctica: implications for the amalgamation of Gondwana

2020

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The study area is located across the Kalahari Craton – Maud Belt boundary in Dronning Maud Land (DML), Antarctica. The ∼1100 Ma Maud Belt in the east is situated where the ∼900–600 Ma East African and ∼530–500 Ma Kuunga orogenies overlap. The Kalahari Craton cover in the west of the study area comprises ∼1100 Ma Straumsnutane Formation lavas in Straumsnutane. In Straumsnutane, early ∼1100 Ma low-grade structures suggest top-to-the-NW deformation. Younger ∼525 Ma structures suggest conjugate top-to-ESE and -WNW transport under low-grade conditions. Western Straumsnutane and Ahlmannryggen do not show the same complex deformation, the intense deformation being restricted to NE Straumsnutane along the eastern margin of the Kalahari Craton. In Sverdrupfjella, in the east, the Maud Belt is underlain by medium-grade, deformed ∼1140 Ma supracrustal gneisses and younger intrusions. Four deformation phases in the gneisses comprise D1 + D2 with top-to-the-N and -NW folds, D3 top-to-the-S and -SE folding and D4 brittle faulting. Syn-D3 emplacement of granitoid veins is inferred at ∼490 Ma. Comparison of the deformation vergence of NE Straumsnutane with western Sverdrupfjella suggests D1 in Straumsnutane is correlatable with D1 + D2 Mesoproterozoic structures in western Sverdrupfjella. D2 deformation in Straumsnutane can be correlated with D3 structures and Cambrian-age granites in Sverdrupfjella. D2 deformation in eastern Straumsnutane and D3 in western Sverdrupfjella are inferred to have occurred in a mega-nappe footwall, implying the Ritscherflya Supergroup cratonic cover in eastern Straumsnutane was partially submerged in the footwall, the mega-nappe formed during Gondwana amalgamation, involving collision between N and S Gondwana in the Kuunga Orogeny, ∼530–500 Ma ago.

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“…For the lithology, the basin is usually classified as belonging to one of the four hydrological soil groups, ranked from class A (high permeability) to class D (very low permeability). Unfortunately, no lithological map is available for Mozambique but, according to [30], the area under study could be assumed as characterized by a medium-low permeability (classes B and C); therefore, the values of CN of these two classes have been averaged. For the land use information, the three soil cover maps presented in Section 2.4 have been considered.…”

Section: Hydrological Modellingmentioning

confidence: 99%

Flood Mitigation Measure and Water Storage in East Africa: An Analysis for the Rio Muaguide, Mozambique

Rrokaj

Corti

Giovannini³

et al. 2021

Hydrology

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In the last century, floods have been more frequently hitting population and human activity, especially in the sub-Saharan context. The aim of this study is to propose suitable flood mitigation measures for the downstream part of the Rio Muaguide, which flows in northern Mozambique. In this terminal part of the river, the bed has been buried by sediment in many reaches; due to the reduction of the section conveyance, wide areas are inundated during the rainy season with negative consequences for several villages relying on subsistence agriculture. The design of any measure requires quantitative determinations but, as many less developed countries, Mozambique is affected by data scarcity. Therefore, in this study global and freely available data have been used to perform hydrologic and two-dimensional hydro-dynamic modelling, finally producing a flood hazard map. Particular care has been put into a critical analysis of several data sources, in terms of their suitability for the purposes of the work. Based on the modelling results and on field evidence, an intervention has been proposed with a double functionality of mitigating the effects of periodic floods and storing water to be used by the agricultural community during drier seasons. The proposed intervention combines restoring a sedimentation-less shape of the river sections and exploiting a natural basin as a storage basin. The methods applied and the intervention proposed for the Rio Muaguide are prototypal for several analogous streams in the coastal portion of Mozambique.

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Geology of the Monapo Klippe, NE Mozambique and its significance for assembly of central Gondwana

Cited by 32 publications

References 48 publications

Late Neoproterozoic granulite facies metamorphism in the Menderes Massif, Western Anatolia/Turkey: implication for the assembly of Gondwana

Late Neoproterozoic granulite facies metamorphism in the Menderes Massif, Western Anatolia/Turkey: implication for the assembly of Gondwana

The structural evolution of the Straumsnutane and western Sverdrupfjella areas, western Dronning Maud Land, Antarctica: implications for the amalgamation of Gondwana

Flood Mitigation Measure and Water Storage in East Africa: An Analysis for the Rio Muaguide, Mozambique

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