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Journal articles on the topic 'Sedimentary structures – South Africa – Eastern Cape'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Sami, K. "Recharge mechanisms and geochemical processes in a semi-arid sedimentary basin, Eastern Cape, South Africa." Journal of Hydrology 139, no. 1-4 (1992): 27–48. http://dx.doi.org/10.1016/0022-1694(92)90193-y.

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2

Bezuidenhout, L. J., M. Doucouré, V. Wagener, et al. "Rayleigh group velocity extraction from ambient seismic noise to map the south Eastern Cape Karoo region, South Africa." South African Journal of Geology 120, no. 3 (2017): 341–50. http://dx.doi.org/10.25131/gssajg.120.3.341.

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Abstract The Karoo region of South Africa is an ideal laboratory to use ambient seismic signals to map the shallow subsurface, as it is a quiet and pristine environment with a geology that is relatively well known. Ambient seismic signals were continuously recorded for a ten week period between August and October 2015. The ambient seismic noise network consisted of two groups of 17 temporary, stand-alone seismic stations each. These were installed in the southeastern Cape Karoo region, near the town of Jansenville. Here we present data on the retrieval and coherency of Rayleigh surface waves e

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3

Stone, Philip. "Geology reviewed for the Falkland Islands and their offshore sedimentary basins, South Atlantic Ocean." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 106, no. 2 (2015): 115–43. http://dx.doi.org/10.1017/s1755691016000049.

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ABSTRACTThe position of the Falkland Islands adjacent to the South American continental margin belies the close association of their geology with that of South Africa. A Mesoproterozoic basement is unconformably overlain by a Silurian to Devonian succession of fluvial to neritic and shallow marine, siliciclastic strata. This is disconformably succeeded by a largely Permian succession that, near its base, includes a glacigenic diamictite and, thence, passes upwards into a succession of deltaic and lacustrine strata. The lithological succession and the character of its deformation bear striking

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4

Baiyegunhi, Christopher, and Kuiwu Liu. "Sedimentary facies, stratigraphy, and depositional environments of the Ecca Group, Karoo Supergroup in the Eastern Cape Province of South Africa." Open Geosciences 13, no. 1 (2021): 748–81. http://dx.doi.org/10.1515/geo-2020-0256.

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Abstract The stratigraphy of the Ecca Group has been subdivided into the Prince Albert, Whitehill, Collingham, Ripon, and Fort Brown Formations in the Eastern Cape Province, South Africa. In this article, we present detailed stratigraphic and facies analyses of borehole data and road-cut exposures of the Ecca Group along regional roads R67 (Ecca Pass), R344 (Grahamstown-Adelaide), R350 (Kirkwood-Somerset East), and national roads N2 (Grahamstown-Peddie) and N10 (Paterson-Cookhouse). Facies analysis of the Ecca Group in the study area was performed to deduce their depositional environments. Bas

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Edwards, Mark Joseph Kalahari, Callum Robert Anderson, Renzo Perissinotto, and Gavin Midgley Rishworth. "Macro- and meso-fabric structures of peritidal tufa stromatolites along the Eastern Cape coast of South Africa." Sedimentary Geology 359 (August 2017): 62–75. http://dx.doi.org/10.1016/j.sedgeo.2017.08.006.

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6

Haeusler, Ilsa Louisa, Felicity Knights, Vishaal George, and Andy Parrish. "Improving TB infection control in a regional hospital in the Eastern Cape, South Africa." BMJ Open Quality 8, no. 1 (2019): bmjoq—2018–000347. http://dx.doi.org/10.1136/bmjoq-2018-000347.

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This quality improvement (QI) work was carried out in Cecilia Makiwane Hospital (CMH), a regional public hospital in the Eastern Cape, South Africa (SA). SA has among the highest incidence of tuberculosis (TB) in the world and this is a leading cause of death in SA. Nosocomial infection is an important source of TB transmission. Adherence to TB infection prevention control (IPC) measures in the medical inpatient department was suboptimal at CMH. The overall aim of this QI project was to make sustainable improvements in TB IPC. A multidisciplinary team was formed to undertake a root cause analy

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Okafor, Chukwuemeka, Solomon Matiwane, and Richard Amechi Onuigbo. "Examining Municipal Councillors’ Oversight Roles in Alfred Nzo District Municipality of the Eastern Cape, South Africa." Africa’s Public Service Delivery and Performance Review 3, no. 3 (2015): 52. http://dx.doi.org/10.4102/apsdpr.v3i3.89.

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This study reviews the oversight roles played by municipal councillors in Alfred Nzo District Municipality, Eastern Cape Province, South Africa. The objective is to determine the appropriate strategies that can be recommended for improving effectiveness of leadership, i.e., council structures. This is against the backdrop of the Auditor-General’s audit report for three financial years (2008–2011), which revealed the weakness of the systems of the municipal councils, including internal controls and inadequate leadership. These audit findings had been highlighted as the basis for irregular, frui

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Bamford, M. K., B. Cairncross, and H. Lombard. "Silicified fossil woods from the Late Permian Middleton Formation, Beaufort Group, Eastern Cape Province, South Africa and their palaeoenvironmental significance." South African Journal of Geology 123, no. 4 (2020): 465–78. http://dx.doi.org/10.25131/sajg.123.0036.

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Abstract Fossil wood is described from the Late Permian Middleton Formation, Adelaide Subgroup, Beaufort Group of the Karoo Supergroup in the Easter Cape Province, South Africa. The wood consists of in situ tree trunks up to 9 m long, partially enclosed in fine-grained sandstone surrounded by argillaceous mudstone and siltstone. The strata are poorly exposed due to the eroded and denuded land surface. All are lying horizontally and none are in upright growth positions. Comparisons of the study site lithologies with known surrounding Middleton Formation lithostratigraphy supports the interpreta

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Perry, Adam F. "Ethnographic insights on rural sustainability; homestead design and permaculture of Eastern Cape settlements in South Africa." Africanus: Journal of Development Studies 43, no. 1 (2018): 115–25. http://dx.doi.org/10.25159/0304-615x/5087.

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This article considers the prevalence of sustained agricultural practices (particularly large scale gardens of the homestead) and questions current public debate that permaculture strategy is foreign to South Africa. The paper speaks on recent ethnographic work by the author in rural parts of the Eastern Cape, or the former Transkei. The article makes comparisons to some of the founding principles of permaculture theory and practice to suggest that current agricultural practices and homestead (umzi, plural imizi) settlement patterns follow closely to “permaculture ideals” in theory and practic

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10

Clifford-Holmes, Jai K., Carolyn G. Palmer, Chris J. de Wet, and Jill H. Slinger. "Operational manifestations of institutional dysfunction in post-apartheid South Africa." Water Policy 18, no. 4 (2016): 998–1014. http://dx.doi.org/10.2166/wp.2016.211.

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At the centre of the water law reform process initiated by the first democratic government of the Republic of South Africa (RSA) lay the challenge of transforming away from apartheid water injustices. Reform culminated in the promulgation of new legislation, regarded internationally as ambitious and forward-thinking legislation reflective of the broad aims of integrated water resource management (IWRM). However, implementation of this legislation has been challenging. This paper analyses institutional dysfunction in water management in the Sundays River Valley Municipality (Eastern Cape Provin

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Mepaiyeda, S., K. Madi, O. Gwavava, C. Baiyegunhi, and L. Sigabi. "Contaminant Delineation of a Landfill Site Using Electrical Resistivity and Induced Polarization Methods in Alice, Eastern Cape, South Africa." International Journal of Geophysics 2019 (December 22, 2019): 1–13. http://dx.doi.org/10.1155/2019/5057832.

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A combination of electrical resistivity and induced polarization methods were applied to a solid waste landfill in Alice, Eastern Cape, South Africa to delineate the lithologic layers and locate possible leachate plumes. Resistivity and IP data were collected along six profiles; VES on two and the dipole-dipole configuration was used in the rest four. The result shows a 4-layered earth system with a shallow depth to the top of the bedrock (<10 m). Contaminants ranging from unsaturated waste with high ion content to dense aqueous phase liquid contaminants, characterized by low resistivity (3

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12

Achieng, Therezah, Kristine Maciejewski, Michelle Dyer, and Reinette Biggs. "Using a Social-ecological Regime Shift Approach to Understand the Transition from Livestock to Game Farming in the Eastern Cape, South Africa." Land 9, no. 4 (2020): 97. http://dx.doi.org/10.3390/land9040097.

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This study explored the shift in land use from livestock farming to game farming in the Eastern Cape, South Africa, from a social-ecological regime shift perspective. A regime shift can be defined as a large, persistent change in the structure and function of the intertwined social and ecological components of a landscape. This research focused on the Amakhala game reserve as a case study to understand how the shift affected the provision of ecosystem services and human wellbeing. We used remote sensing techniques to quantify changes in vegetation and found evidence of vegetation recovery foll

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13

Baiyegunhi, Christopher, Zusakhe Nxantsiya, Kinshasa Pharoe, Temitope L. Baiyegunhi, and Seyi Mepaiyeda. "Petrographical and geophysical investigation of the Ecca Group between Fort Beaufort and Grahamstown, in the Eastern Cape Province, South Africa." Open Geosciences 11, no. 1 (2019): 313–26. http://dx.doi.org/10.1515/geo-2019-0025.

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Abstract The outcrop of the Ecca Group in the Eastern Cape Province was investigated in order to reveal petrographic and geophysical characteristics of the formations that make up the group which are vital information when considering fracking of the Karoo for shale gas. The petrographic study reveals that the rocks of the Ecca Group are both argillaceous and arenaceous rock with quartz, feldspar, micas and lithics as the framework minerals. The sandstones are graywackes, immature and poorly sorted, thus giving an indication that the source area is near. The observed heavy minerals aswell as t

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14

West Jr., David P., Heather M. Beal, and Timothy W. Grover. "Silurian deformation and metamorphism of Ordovician arc rocks of the Casco Bay Group, south-central Maine." Canadian Journal of Earth Sciences 40, no. 6 (2003): 887–905. http://dx.doi.org/10.1139/e03-021.

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The Casco Bay Group in south-central Maine consists of a sequence of Late Cambrian to Early Ordovician interlayered quartzofeldspathic granofels and pelite (Cape Elizabeth Formation) overlain by Early to Late Ordovician back-arc volcanic (Spring Point Formation) and volcanogenic sedimentary rocks (Diamond Island and Scarboro formations). These rocks were tightly folded and subjected to low-pressure amphibolite-facies metamorphism in the Late Silurian. This phase of deformation and metamorphism was followed by the development of a variety of structures consistent with a period of dextral transp

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15

Majola, Brian K. "Support Extended to Women Ward Councillors by Stakeholders in South Africa." Journal of Educational and Social Research 11, no. 3 (2021): 78. http://dx.doi.org/10.36941/jesr-2021-0053.

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The paper aims to explore how culture, family and community-women have shaped women councillors’ representation and participation in South Africa. It investigates the extent to which women ward councillors are gaining support from their male counterparts; other women councillors irrespective of political affiliation when women-related issues are raised in council meetings. The paper identifies reasons contributing to the non-support by key stakeholders when women-related issues are raised and when performing their duties. Post-1994 in South Africa, women’s participation in politics is still a

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16

Somhlaba, Nceba Z., and John W. Wait. "Psychological Adjustment to Conjugal Bereavement: Do Social Networks Aid Coping following Spousal Death?" OMEGA - Journal of Death and Dying 57, no. 4 (2008): 341–66. http://dx.doi.org/10.2190/om.57.4.b.

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This research sought to investigate the role of social networks in coping and adjustment to spousal bereavement. A total of 198 Xhosa-speaking participants, drawn from the rural areas of the Eastern Cape Province, South Africa, took part in the study. Quantitative data analyses revealed significant correlations between perceived social support on Social Support Appraisals scale and the anxiety scores on the Beck Depression Inventory-Second Edition and the problem-solving coping strategy scale on the Coping Strategy Indicator. Regression analyses revealed that depression contributed to increase

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17

Sciscio, Lara, Emese M. Bordy, Mhairi Reid, and Miengah Abrahams. "Sedimentology and ichnology of the Mafube dinosaur track site (Lower Jurassic, eastern Free State, South Africa): a report on footprint preservation and palaeoenvironment." PeerJ 4 (August 23, 2016): e2285. http://dx.doi.org/10.7717/peerj.2285.

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Footprint morphology (e.g., outline shape, depth of impression) is one of the key diagnostic features used in the interpretation of ancient vertebrate tracks. Over 80 tridactyl tracks, confined to the same bedding surface in the Lower Jurassic Elliot Formation at Mafube (eastern Free State, South Africa), show large shape variability over the length of the study site. These morphological differences are considered here to be mainly due to variations in the substrate rheology as opposed to differences in the trackmaker’s foot anatomy, foot kinematics or recent weathering of the bedding surface.

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18

Musara, Collen, Paula Spies, Johanne J. Spies, and Brita Stedge. "A review of Bulbinella (Asphodelaceae): distribution, conservation status, and economic importance." Botanical Sciences 95, no. 2 (2017): 155. http://dx.doi.org/10.17129/botsci.696.

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<p><strong>Background</strong>: This review offers a comprehensive overview of the importance of <em>Bulbinella</em>, a genus of the family Asphodelaceae. A total of 23 species of <em>Bulbinella</em> are known, of which 17 are found in South Africa, and six in New Zealand. The genus is native to the Northern, Western, and Eastern Cape Provinces of South Africa, and to the main North and South Islands of New Zealand including the subantarctic islands, Auckland and Campbell.</p><p><strong>Studied species</strong>: <em>Bulbin

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19

Tachie, Simon Adjei, and Nandi Carol Mancotywa. "Challenges Faced by the Development Support Group in Implementing the Integrated Quality Management System in Circuit 04 Schools in the Mthatha Education District." Education Research International 2021 (September 22, 2021): 1–13. http://dx.doi.org/10.1155/2021/8888539.

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The purpose of this study was to investigate challenges faced by Development Support Groups (DSGs) in implementing the Integrated Quality Management System (IQMS) in the primary schools of Circuit 04 of the Mthatha District of the Eastern Cape Province, South Africa. The scope of this research was restricted to four primary schools in Circuit 04. The research methodology was qualitative in nature, and a multiple case study strategy was employed. The sampling strategy was convenience sampling and included DSGs and teachers. Data were collected through face-to-face individual in-depth interviews

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20

Le Roy, Pascal, Claire Gracia-Garay, Pol Guennoc, et al. "Cenozoic tectonics of the Western Approaches Channel basins and its control of local drainage systems." Bulletin de la Société Géologique de France 182, no. 5 (2011): 451–63. http://dx.doi.org/10.2113/gssgfbull.182.5.451.

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Abstract The geology of the Channel Western Approaches is a key to understand the post-rift evolution of the NW European continental margin in relation with the Europe/Africa collision. Despite considerable evidence of Tertiary tectonic inversion throughout the Channel basin, the structures and amplitudes of the tectonic movements remain poorly documented across the French sector of the Western Approaches. The effect of the tectonic inversion for the evolution of the “Channel River”, the major system that flowed into the English Channel during the Plio-Quaternary eustatic lowstands, also needs

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21

Knight, J., and S. W. Grab. "Stratigraphy of late Quaternary mountain slope landforms and deposits in southern Africa and their significance for the dynamics of mountain sediment systems." South African Journal of Geology, July 28, 2021. http://dx.doi.org/10.25131/sajg.124.0037.

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Abstract Mountains are areas of high potential sediment yield due to their steep slopes and generally cool, wet climates. Mountain sediments are moved by gravity-driven and often cryogenically-influenced processes, and captured within valleys or footslopes in the form of screes, alluvial/colluvial fans and terraces, or on hillslopes in the form of solifluction sheets, debris lobes/ridges and openwork block deposits. This study critically examines the geomorphic, sedimentary, stratigraphic and dating evidence from cryogenically-influenced late Quaternary slope deposits found along the highest s

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Baiyegunhi, Christopher, Kuiwu Liu, and Oswald Gwavava. "Modal composition and tectonic provenance of the sandstones of Ecca Group, Karoo Supergroup in the Eastern Cape Province, South Africa." Open Geosciences 9, no. 1 (2017). http://dx.doi.org/10.1515/geo-2017-0038.

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AbstractPetrography of the sandstones of Ecca Group, Karoo Supergroup in the Eastern Cape Province of South Africa have been investigated on composition, provenance and influence of weathering conditions. Petrographic studies based on quantitative analysis of the detrital minerals revealed that the sandstones are composed mostly of quartz, feldspar and lithic fragments of metamorphic and sedimentary rocks. The sandstones have an average framework composition of 24.3% quartz, 19.3% feldspar, 26.1% rock fragments, and 81.33% of the quartz grains are monocrystalline. These sandstones are generall

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23

Nami, Hugo G., Paloma de la Peña, Carlos A. Vásquez, James Feathers, and Paloma de la Peña. "Palaeomagnetic results and new dates of sedimentary deposits from Klasies River Cave 1, South Africa." South African Journal of Science Volume 112, Number 11/12 (2016). http://dx.doi.org/10.17159/sajs.2016/20160051.

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Abstract Palaeomagnetic data from Klasies River main site Cave 1 (Eastern Cape Province, South Africa) are reported. Natural remanent magnetisation directions obtained from 77 oriented samples were determined by progressive alternating field demagnetisation methodology. Three palaeomagnetic samplings from the Witness Baulk from the Middle Stone Age (MSA) Late Pleistocene White Sand member and the Holocene Later Stone Age (LSA) middens in Cave 1 were dated and analysed to obtain the palaeomagnetic directions recorded in the sediments. Here we provide new optically stimulated luminescence (OSL)

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24

Humphries, M. S. "Elemental proxy evidence for late Quaternary palaeoenvironmental change in southern African sedimentary records: interpretation and applications." South African Journal of Geology, July 31, 2021. http://dx.doi.org/10.25131/sajg.124.0046.

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Abstract Sediments are the most important source of Late Quaternary palaeoclimate information in southern Africa, but have been little studied from a geochemical perspective. However, recent advances in analytical techniques that allow rapid and near-continuous elemental records to be obtained from sedimentary sequences has resulted in the increasing use of elemental indicators for reconstructing climate. This paper explores the diverse information that can be acquired from the inorganic component of sediments and reviews some of the progress that has been made over the last two decades in int

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25

Xweso, Mzukisi, Catherina Schenck, and Derick Blaauw. "“Will wait for the government pension here”: Structural factors impacting on day labourers’ access to employment in East London, South Africa." Local Economy: The Journal of the Local Economy Policy Unit, August 3, 2021, 026909422110364. http://dx.doi.org/10.1177/02690942211036406.

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The study investigated barriers and enablers that day labourers in East London, in the Eastern Cape Province of South Africa, experience while attempting to access temporary employment opportunities. The focus was on the constraints and enablers of the structures in East London’s local economy. The research adopted a sequential exploratory design, utilising a three-phase approach. The first phase of the study was a quantitative process to determine the socio-economic profile of the day labourers. The second and third phases were qualitative. In phase 3, semi-structured interviews were conducte

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26

De Wit, Maarten J., Bastien Linol, and Vhuhwavhohau Nengovhela. "Proterozoic–Paleozoic Sedimentary Rocks and Mesozoic–Cenozoic Landscapes of the Cape Mountains Across the Kango Complex Reveal ‘More Gaps Than Record’ from Rodinia and Gondwana to Africa." Geoscience Canada, July 10, 2020, 7–58. http://dx.doi.org/10.12789/geocanj.2020.47.157.

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The Kango (Cango) region flanks the northern margins of the Klein Karoo and the Cape Mountains across the Western Cape Province of South Africa. It preserves a condensed Proterozoic–Paleozoic stratigraphy exposed via a Mesozoic–Cenozoic morphology with a present Alpine-like topography. Its rocks and landscapes have been repeatedly mapped and documented for the past 150 years. Over the last 25 years, we remapped and dated a central-eastern section of this region. The subvertically bedded and cleaved rocks reveal an 8–10 km thick stratigraphy covering more than 700 million years between ca. 1200

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27

Chetty, Rajendra. "Women Warriors and Female Community in the Prison Writings of Fatima Meer and Nawal El Saadawi." Imbizo 10, no. 2 (2019). http://dx.doi.org/10.25159/2663-6565/6535.

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The aim of this article is to analyse how the violence of a patriarchal system forces women into situations where they feel violence is the only option, either as a mode of resistance or an expression of agency. The article foregrounds how systems of oppression, such as patriarchy, perpetuate violence. The killing of men committed by Fatima Meer’s prison associate, Lydia, and by Nawal El Saadawi’s prison friend, Fathiyya, parallel manifestations of female agency such as that evinced in 2017 by the “warrior woman” in Qumbu in the Eastern Cape province of South Africa. Homicide, in the context o

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