A Scoping Report on Te Environmental Impact
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Mineralised Pegmatites of the Damara Belt, Namibia: Fluid Inclusion and Geochemical Characteristics with Implications for Post- Collisional Mineralisation
Mineralised Pegmatites of the Damara Belt, Namibia: Fluid inclusion and geochemical characteristics with implications for post- collisional mineralisation Luisa Ashworth A dissertation submitted to the Fa culty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Doctor of Philosophy. Johannesburg, 2014 DECLARATION I declare that this thesis is my own, unaided work. It is being submitted for the degree of Doctor of Philosophy at the University of the Witwatersrand, Johannesburg. It has not been submitted before for any degree or examination in any other university. _______________________ Luisa Ashworth 20 of March 2014 i ABSTRACT Namibia is renowned for its abundant mineral resources, a large proportion of which are hosted in the metasedimentary lithologies of the Damara Belt, the northeast-trending inland branch of the Neoproterozoic Pan-African Damara Orogen. Deposit types include late- to post-tectonic (~ 523 – 506 Ma) LCT (Li-Be, Sn-, and miarolitic gem-tourmaline- bearing) pegmatites, and uraniferous pegmatitic sheeted leucogranites (SLGs), which have an NYF affinity. Fluid inclusion studies reveal that although mineralization differs between the different types of pegmatites located at different geographic locations, and by extension, different stratigraphic levels, the fluid inclusion assemblages present in these pegmatites are similar; thus different types of pegmatites are indistinguishable from each other based on their fluid inclusion assemblages. Thorough fluid inclusion petrography indicated that although fluid inclusions are abundant in the pegmatites, no primary fluid inclusions could be identified, and rather those studied are pseudosecondary and secondary. Fluid inclusions are aqueo-carbonic (± NaCl), carbonic, and aqueous. It is proposed that all of the pegmatites studied share a similar late-stage evolution, with fluids becoming less carbonic and less saline with the progression of crystallisation. -
Geology of the Kranzberg Syncline and Emplacement Controls of the Usakos Pegmatite Field, Damara Belt, Central Namibia
GEOLOGY OF THE KRANZBERG SYNCLINE AND EMPLACEMENT CONTROLS OF THE USAKOS PEGMATITE FIELD, DAMARA BELT, CENTRAL NAMIBIA by Geoffrey J. Owen Thesis presented in fulfilment of the requirements for the degree Master of Science at the University of Stellenbosch Supervisor: Prof. Alex Kisters Faculty of Science Department of Earth Sciences March 2011 i DECLARATION By submitting this thesis electronically, I declare that the entirety of the work contained therein is my own, original work, that I am the sole author thereof (save to the extent explicitely otherwise stated), that reproduction and publication thereof by Stellenbosch University will not infringe any third party rights and that I have not previously in its entirety or in part submitted it for obtaining any qualification. Signature: Date: 15. February 2011 ii ABSTRACT The Central Zone (CZ) of the Damara belt in central Namibia is underlain by voluminous Pan-African granites and is host to numerous pegmatite occurrences, some of which have economic importance and have been mined extensively. This study discusses the occurrence, geometry, relative timing and emplacement mechanisms for the Usakos pegmatite field, located between the towns of Karibib and Usakos and within the core of the regional-scale Kranzberg syncline. Lithological mapping of the Kuiseb Formation in the core of the Kranzberg syncline identified four litho-units that form an up to 800 m thick succession of metaturbidites describing an overall coarsening upward trend. This coarsening upwards trend suggests sedimentation of the formation’s upper parts may have occurred during crustal convergence and basin closure between the Kalahari and Congo Cratons, rather than during continued spreading as previously thought. -
Kunene Regional Development Profile 2015
Kunene Regional Council Kunene Regional Development Profile2015 The Ultimate Frontier Foreword 1 Foreword The Kunene Regional Devel- all regional stakeholders. These issues inhabitants and wildlife, but to areas opment Profile is one of the include, rural infrastructural develop- beyond our region, through exploring regional strategic documents ment, poverty and hunger, unemploy- and exposing everything Kunene has which profiles who we are as ment, especially youth, regional eco- to offer. the Great Kunene Region, what nomic growth, HIV/AIDS pandemic, I believe that if we rally together as a we can offer in terms of current domestic or gender based violence and team, the aspirations and ambitions of service delivery (strengths), our illegal poaching of our wildlife. our inhabitants outlined in this docu- regional economic perform- ment can be easily transformed into ances, opportunities, challenges It must be understood clearly to all of successful implementation of socio and and constraints. us as inhabitants of this Great Kunene, economic development in our region, and Namibians at large, that our re- which will guarantee job creation, In my personal capacity as the Region- gional vision has been aligned with our economic growth, peace and political al Governor of Kunene Region and a national vision. Taking into account stability. Regional Political Head Representative the current impact of development in of the government, I strongly believe our region, we have a lot that we need With these remarks, it is my honor and that the initiation -
I~~I~ E a FD-992A-~N ~II~I~I~I~~ GOVERNMENT GAZE'rte of the REPUBLIC of NAMIBIA
Date Printed: 12/31/2008 JTS Box Number: lFES 14 Tab Number: 30 Document Title: GOVERNMENT GAZETTE OF THE REPUBLIC OF NAMIBIA, R2,BO - NO 473, NO 25 Document Date: 1992 Document Country: NAM Document Language: ENG lFES ID: EL00103 F - B~I~~I~ E A FD-992A-~n ~II~I~I~I~~ GOVERNMENT GAZE'rtE OF THE REPUBLIC OF NAMIBIA R2,80 WINDHOEK - I September 1992 No. 473 CONTENTS Page PROCLAMATION No. 25 Establishment of the boundaries of constituencies in Namibia ........ PROCLAMATION by the PRESIDENT OF THE REPUBLIC OF NAMIBIA No. 25 1992 ESTABLISHMENT OF THE BOUNDARIES OF CONSTITUENCIES IN NAMIBIA Under the powers vested in me by section 4(2)( a) of the Regional Councils Act, 1992 (Act 22 of 1992), I hereby make known the boundaries of constituencies which have been fixed by the Delimitation Commission under the provisions of Article 106(1) of the Namibian Constitution in respect of the regions referred to in Proclamation 6 of 1992. - Given under my Hand and the Seal of the RepUblic of Namibia at Windhoek this 29th day of August, One Thousand Nine Hundred and Ninety-two. Sam Nujoma President BY ORDER OF THE PRESIDENT-IN-CABINET F Clifton White Resource Center International Foundation for Election Systems 2 Government Gazette I September 1992 No. 473 SCHEDULE BOUNDARIES OF CONSTITUENCIES REGION NO. I: KUNENE REGION compnsmg: Ruacana Constituency This Constituency is bounded on the north by the middle of the Kunene River from the said river's mouth upstream to the Ruacana Falls whence the boundary conforms with the demarcated international straight line east wards to Boundary Beacon 5; thence the boundary turns southwards and coincides with the straight line boundary common to the Kunene and Omusati Regions as far as line of latitude 18° S; thence along this line of latitude westwards to the Atlantic Ocean; thence along the line of the coast in a general northerly direction to the mouth of the Kunene River. -
Formation and Collapse of the Kalahari Duricrust ['African Surface
Formation and Collapse of the Kalahari Duricrust [‘African Surface’] Across the Congo Basin, 10 with Implications for Changes in Rates of Cenozoic Off-Shore Sedimentation Bastien Linol, Maarten J. de Wit, Francois Guillocheau, Michiel C.J. de Wit, Zahie Anka, and Jean-Paul Colin{ 10.1 Introduction margins, and to the east by the East African Rift System (EARS). Their relatively flat interior is covered by an exten- The Congo Basin (CB) of central Africa lies at about 400 m sive Upper Cretaceous-Cenozoic succession of sand dunes, above mean sea level (amsl), and is linked to the south, pan-lacustrine sediments and alluviums with hard-caps across a central African drainage divide, to the high interior (duricrusts) of calcrete, silcrete and ferricrete, collectively Kalahari Plateau (KP) at ca. 1,100 m amsl (Fig. 10.1). The named the Kalahari Group (SACS, 1980). This succession CB and KP are flanked by distinct marginal escarpments reaches a maximum thickness of about 500 m, but across along the South Atlantic and southwest Indian Ocean southern and central Africa is generally less than 100 m thick, representing one of the world’s most extensive, long- lived condensed stratigraphic sequences. The Kalahari Group directly overlies Precambrian base- ment of the Kalahari and Central African Shields (Fig. 10.1b), late Paleozoic to mid-Mesozoic sequences of {Author was deceased at the time of publication. the Karoo Supergroup including Lower Jurassic flood basalts in southern Africa, dated at 178–183 Ma (the B. Linol (*) AEON-ESSRI (African Earth Observatory Network – Earth Stormberg Group; Jourdan et al. -
5 Education and Literacy
Table of Contents Foreword ........................................................................................................ 2 Summary Census Indicator ......................................................................... 4 1 General Overview ......................................................................................... 11 2 Population Structure and Composition ......................................................... 13 3 Disability ....................................................................................................... 18 4 Early Childhood Development ..................................................................... 19 5 Education and Literacy ................................................................................. 21 6 Labour Force ................................................................................................. 25 7 Household Composition and Characteristics ................................................ 31 8 Housing Conditions ...................................................................................... 36 9 Water Supply and Sanitation ........................................................................ 42 10 Fertility ......................................................................................................... 46 11 Mortality and Orphanhood ............................................................................ 48 Appendices 1. ........... Census Definitions of Concepts and Classifications 52 2. ........... Questionnaires 62 3. ........... -
To Neoproterozoic Ghanzi Basin in Botswana and Namibia, and Implications for Copper-Silver Mineralization in the Kalahari Copperbelt
GEOCHRONOLOGY, MAGNETIC LITHOSTRATIGRAPHY, AND THE TECTONOSTRATIGRAPHIC EVOLUTION OF THE LATE MESO- TO NEOPROTEROZOIC GHANZI BASIN IN BOTSWANA AND NAMIBIA, AND IMPLICATIONS FOR COPPER-SILVER MINERALIZATION IN THE KALAHARI COPPERBELT By Wesley Scott Hall Copyright by Wesley S. Hall 2017 All Rights Reserved A thesis submitted to the Faculty and the Board of Trustees of the Colorado School of Mines in partial fulfilment of the requirements for the degree of Doctor of Philosophy (Geology). Golden, Colorado Date ____________________________ Signed: ________________________________ Wesley S. Hall Signed: ________________________________ Dr. Murray H. Hitzman Thesis Advisor Signed: ________________________________ Dr. Yvette Kuiper Thesis Advisor Golden, Colorado Date ____________________________ Signed: ________________________________ Dr. Merritt Stephen Enders Professor and Department Head of Geology and Geological Engineering ii ABSTRACT Despite a wealth of research on the Kalahari Copperbelt over the past 30 years, two crucial aspects of the mineralizing systems have remained elusive. First, the age of the rift sequence hosting the deposits and, second, the nature of the fluid pathways for the mineralizing fluids. Laser ablation-inductively coupled plasma mass spectrometry (LA-ICPMS) U-Pb isotopic analysis on one igneous sample of the Makgabana Hills rhyolite (Kgwebe Formation) within the central Kalahari Copperbelt in Botswana constrains the depositional age of the unconformably overlying Ghanzi Group to after 1085.5 ± 4.5 Ma. The statistically youngest detrital zircon age populations obtained from the uppermost unit of the Ngwako Pan Formation (1066 ± 9.4 Ma, MSWD = 0.88, n = 3), the overlying D’Kar Formation (1063 ± 11, MSWD = 0.056, n = 3), and the lower Mamuno Formation (1056.0 ± 9.9 Ma, MSWD = 0.68, n = 4) indicate that the middle and upper Ghanzi Groups were deposited after ~1060 to ~1050 Ma. -
Government Gazette Republic of Namibia
GOVERNMENT GAZETTE OF THE REPUBLIC OF NAMIBIA N$4.00 WINDHOEK - 1 October 2015 No. 5846 CONTENTS Page PROCLAMATION No. 33 Determination of date and place for submission of nominations of candidates, polling day and notifi- cation of names of returning officers for the general election of members of regional councils and members of local authority councils: Electoral Act, 2014 (Act No. 5 of 2014) .................................... 1 ________________ Proclamation by the PRESIDENT OF THE REPUBLIC OF NAMIBIA No. 33 2015 DETERMINATION OF DATE AND PLACE FOR SUBMISSION OF NOMINATIONS OF CANDIDATES, POLLING DAY AND NOTIFICATION OF NAMES OF RETURNING OFFICERS FOR THE GENERAL ELECTION OF MEMBERS OF REGIONAL COUNCILS AND MEMBERS OF LOCAL AUTHORITY COUNCILS: ELECTORAL ACT, 2014 (ACT NO. 5 OF 2014) Under the powers vested in me by section 64(1) of the Electoral Act, 2014 (Act No. 5 of 2014) read with section 81 of that Act, I make known that, in respect of the general election of members of all regional councils and of members of all local authority councils - (a) I have, on the recommendation of the Electoral Commission of Namibia, determined Friday, 16 October 2015 as the day on which a public sitting must take place - (i) in each constituency, indicated in column 2 of Schedule A, for the submission of nominations of candidates for election as member of the regional council in respect of that constituency; and 2 Government Gazette 1 October 2015 5846 (ii) in each local authority area, indicated in column 2 of Schedule B, for the submission of -
Die Dinosaurierfährten Von Otjihaenamaparero, Distrikt
The Dinosaur Tracks of Otjihaenamaparero, Otijwarongo District, Namibia Rainer Albert 4/2013 The Karoo basin in southern Africa was a major sediment deposition area from the Carboniferous until the Jurassic. Evidence for the occurence of dinosaurs can be found there from the Upper Triassic onwards, where they had to face an environment that increasingly changed towards an arid climate. Apart from skeletons, dinosaur tracks were discovered at several places in Namibia. Among them, the trackways of Otjihaenamaparero are renowned as the most impressive ones. How to get there & terms of entrance The trackways are located on the territory of farm Otjihaenamaparero 92, located approximately 180 km north of Windhoek. One can reach the farm on pads D2414 (south of Kalkrand, via C33) or D2404 (between Okahandja and Otjiwarongo, via B1). The turnoffs are signposted. Coordinates: 21°2'24.46" S, 16°24'1.74" E. Considering bad road conditions and a lack of mobile network coverage in the solitary area, it is recommended to carry a spare tire and enough drinking water. Sufficient time should be allowed to cope with the pad conditions. The traveller will however be rewarded with great scenery along the route. It is best to visit the tracksite at times of angular sunlight, when shadows emphasize the impressions. Fig. 1: Location of Dinosaur Tracks National Monument in Namibia and route scheme The entrance fee has to be paid at the farmhouse (20 N-$ p. p., March 2013). The two tracksites are located at 150 and 450 m walking distance from the farmhouse. Footwear that protects from small biting and stinging animals is recommended. -
Location of Polling Stations, Namibia
GOVERNMENT GAZETTE OF THE REPUBLIC OF NAMIBIA N$34.00 WINDHOEK - 7 November 2014 No. 5609 CONTENTS Page PROCLAMATIONS No. 35 Declaration of 28 November 2014 as public holiday: Public Holidays Act, 1990 ............................... 1 No. 36 Notification of appointment of returning officers: General election for election of President and mem- bers of National Assembly: Electoral Act, 2014 ................................................................................... 2 GOVERNMENT NOTICES No. 229 Notification of national voters’ register: General election for election of President and members of National Assembly: Electoral Act, 2014 ............................................................................................... 7 No. 230 Notification of names of candidates duly nominated for election as president: General election for election of President and members of National Assembly: Electoral Act, 2014 ................................... 10 No. 231 Location of polling stations: General election for election of President and members of National Assembly: Electoral Act, 2014 .............................................................................................................. 11 No. 232 Notification of registered political parties and list of candidates for registered political parties: General election for election of members of National Assembly: Electoral Act, 2014 ...................................... 42 ________________ Proclamations by the PRESIDENT OF THE REPUBLIC OF NAMIBIA No. 35 2014 DECLARATION OF 28 NOVEMBER 2014 AS PUBLIC HOLIDAY: PUBLIC HOLIDAYS ACT, 1990 Under the powers vested in me by section 1(3) of the Public Holidays Act, 1990 (Act No. 26 of 1990), I declare Friday, 28 November 2014 as a public holiday for the purposes of the general election for 2 Government Gazette 7 November 2014 5609 election of President and members of National Assembly under the Electoral Act, 2014 (Act No. 5 of 2014). Given under my Hand and the Seal of the Republic of Namibia at Windhoek this 6th day of November, Two Thousand and Fourteen. -
Comms GSN 23 Complete
A Reference Section for the Otavi Group (Damara Supergroup) in Eastern Kaoko Zone near Ongongo, Namibia P.F. Hoffman1,2,*, S.B. Pruss3, C.L. Blättler4, E.J. Bellefroid5 & B.W. Johnson6 1School of Earth & Ocean Sciences, University of Victoria, Victoria, BC, Canada, V8P 5C2 2Department of Earth & Planetary Sciences, Harvard University, Cambridge, MA 02138, USA 3Department of Geosciences, Smith College, Northampton, MA 01065, USA 4Department of Geophysical Sciences, University of Chicago, Chicago, IL 60637, USA 5Department of Earth & Planetary Sciences, McGill University, Montreal, QC, Canada, H3A 0E8 6Department of Geological & Atmospheric Sciences, Iowa State University, Ames, IA 50011-1027, USA * 1216 Montrose Ave., Victoria, BC, Canada, V8T 2K4. email: <[email protected]> Abstract : A reference section for the Otavi Group (Damara Supergroup) in the East Kaoko Zone near Ongongo is proposed and described. The section is easily accessible, well exposed, suitable for field excursions, and well documented in terms of carbonate lithofacies, depositional sequences and stable- isotope chemostratigraphy. The late Tonian Ombombo Subgroup is 355 m thick above the basal Beesvlakte Formation, which is not included in the section due to poor outcrop and complex structure. The early- middle Cryogenian Abenab Subgroup is 636 m thick and the early Ediacaran Tsumeb Subgroup is 1020 m thick. While the section is complete in terms of formations represented, the Ombombo and lower Abenab subgroups have defined gaps due to intermittent uplift of the northward-sloping Makalani rift shoulder. The upper Abenab and Tsumeb subgroups are relatively thin due to erosion of a broad shallow trough during late Cryogenian glaciation and flexural arching during post-rift thermal subsidence of the carbonate platform. -
The Development and Evolution of Etosha Pan, Namibia
The Development and Evolution of Etosha Pan, Namibia Dissertation zur Erlangung des naturwissenschaftlichen Doktorgrades der Bayerischen Julius-Maximilians-Universität Würzburg Vorgelegt von Martin HT Hipondoka Würzburg 2005 To the demise of the Bantu Education System Table of Contents Table of Contents.................................................................................................................. ii List of Figures...................................................................................................................... iii List of Tables.........................................................................................................................iv Acknowledgments..................................................................................................................v Abstract .................................................................................................................................vi Ausführliche Zusammenfassung...................................................................................... vii 1. Introduction ................................................................................................ 1 1.1 Background..........................................................................................................1 1.2 Aims and Objectives of the Study......................................................................1 2. Methods and Techniques ............................................................................. 4 2.1 Remote Sensing (RS)