DOCSLIB.ORG

Mine Call Factor Issues at Iduapriem Mine: Working Towards a Mineral And

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Mine Call Factor Issues at Iduapriem Mine: Working Towards a Mineral And Mine Call Factor issues at Iduapriem Mine: Working towards a Mineral and Metal accounting protocol Monica Naa Morkor Tetteh A research report submitted to the faculty of Engineering and the Built Environment, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Science in Engineering. Johannesburg 2014 DECLARATION I declare that this report is my own, unaided work. I have read the University Policy on Plagiarism and hereby confirm that no Plagiarism exists in this report. I also confirm that there is no copying nor is there any copyright infringement. I willingly submit to any investigation in this regard by the School of Mining Engineering and I undertake to abide by the decision of any such investigation. __________________ ________ Signature Date ii ABSTRACT The theory of Mine Call Factor (MCF) compares the sum of metal produced in recovery plus residue to the metal called for by the mines evaluation method expressed as a percentage. This MCF concept is well known in underground scenarios and therefore this report highlights the MCF issues and the variable components affecting it from a surface mine perspective. The MCF investigation established the relationship between actual measurements and reporting against measurement protocols. Such measurements include “tonnage, volume, relative density, reconciliation strategy, and truck tonnage determination, sampling and assay standards. This study investigated how these measurements are conducted on Iduapriem Mine according to the mine’s standard operating procedures (SOP). An improvement of documents towards a metal accounting protocol based on the AMIRA protocol is recommended. The mine’s current quality control protocol was further expanded to reflect current practices. The mine to mill reconciliation compared production estimates from various sources (resource model, grade control model, pit design, plant and stockpile, truck tally, stockpile and plant feed, plant feed and plant received) in the period 2009 and 2010. Reconciliation factors expressed as a percentage were statistically analysed for discrepancies for tonnages and grades. It was realised that there is more confidence in mass (tonnage) measurement compared to grade. A generic mine to mill reconciliation path was suggested to be used by the mine. iii DEDICATION I DEDICATE THIS REPORT TO ALL THE ANGELS WHO’S NAMES THE REPORT WIL NOT BE ABLE TO CONTAIN. I AM FULL OF GRATITUDE FOR THE SUPPORT, ENCOURAGEMENT AND GUIDANCE THROUGH OUT THIS JOURNEY OF BEGINNING AND COMPLETING. iv ACKNOWLEDGEMENT This research report has been made possible by the assistance of the following persons: 1. Mr Asante Yamoah the Chief mining engineer, Mr Eric Heloo a senior mine surveyor, Mr Frederick kyeremateng a senior planning engineer and all the management team of AngloGold Ashanti Iduapriem mine for assistance received during my visit to the mine and for allowing me to use their data. 2. Mr Dave Borman, a senior lecturer of the University of the Witwatersrand, for his readiness to listen, discuss and share experiences whilst working on the mine (both in Ghana and South Africa) as well as suggestions. 3. Mr Eric Engman the Chief geologist at Newmont Ghana gold limited for all the inputs and suggestive ways forward. 4. Big thanks to my parents Mr Robert Tetteh and Mrs Theresa Tetteh, my siblings (Anthony, Hilda, Robert and Albert) who have always encouraged me to do more. 5. My friend Paskalia Neingo for being a selfless friend. 6. My heartfelt gratitude to all the administration staff of the school of mining engineering. 7. A faithful friend, teacher and husband Mr Senyo Dedzo dzokoto, I say thank you for your deep understanding, encouragement and passion for education. 8. To my supervisor Professor Frederick Cawood. I simply don’t have words to describe my deepest appreciation for your mentorship over the years. You are simply the best. Thank you v Table of Contents DECLARATION ......................................................................................................................................................... ii ABSTRACT .............................................................................................................................................................. iii DEDICATION ........................................................................................................................................................... iv ACKNOWLEDGEMENT ............................................................................................................................................ v TABLE OF FIGURES ................................................................................................................................................. ix LIST OFACRONYMS ................................................................................................................................................. x LIST OF DEFINITIONS ............................................................................................................................................... x 1 INTRODUCTION .............................................................................................................................................. 1 1.1 Problem Definition ................................................................................................................................ 1 1.2 Relevance of the research ..................................................................................................................... 2 1.3 Objectives .............................................................................................................................................. 2 1.4 Expected outcome ................................................................................................................................ 3 1.5 The methodology employed ................................................................................................................. 3 1.6 Overview of Iduapriem mine ................................................................................................................ 4 1.7 Geology and Mineralisation .................................................................................................................. 5 1.8 Processing Plant .................................................................................................................................... 6 1.9 Sampling and assaying procedure after mill fence ............................................................................... 7 1.10 Mining and operation............................................................................................................................ 8 1.11 Iduapriem production reports and MCF issues ................................................................................... 12 1.12 Mine call factor and its significance .................................................................................................... 14 1.13 Apparent and real losses ..................................................................................................................... 15 1.14 Summary of MCF issues at Iduapriem ................................................................................................. 19 1.15 Conclusion ........................................................................................................................................... 19 CHAPTER 2 ............................................................................................................................................................ 21 2 Theory of Metal accounting ......................................................................................................................... 21 2.1 Ore flow balance sheet ....................................................................................................................... 23 2.2 AMIRA P754 code ................................................................................................................................ 30 2.3 Mass measurements ........................................................................................................................... 33 2.4 Accuracy and precision of mass measurement ................................................................................... 34 2.5 Measurement of density and moisture .............................................................................................. 36 2.6 Sampling and analyses ........................................................................................................................ 39 2.7 Storage of samples and labelling ........................................................................................................ 40 2.8 Sample preparation and analyses ....................................................................................................... 40 2.9 Spangenbergs sampling checklist ........................................................................................................ 40 2.10 Survey compliance code...................................................................................................................... 40 2.11 Reconciliation between planned and actual in the coal industry ....................................................... 41 2.12 Mine planning and reconciliation process .......................................................................................... 42 2.13 Statistical
Load more

Recommended publications
  • Arend J Hoogervorst1 B.Sc.(Hons), Mphil., Pr.Sci
    Audits & Training Eagle Environmental Arend J Hoogervorst1 B.Sc.(Hons), MPhil., Pr.Sci. Nat., MIEnvSci., C.Env., MIWM Environmental Audits Undertaken, Lectures given, and Training Courses Presented2 A) AUDITS UNDERTAKEN (1991 – Present) (Summary statistics at end of section.) Key ECA - Environmental Compliance Audit EMA - Environmental Management Audit EDDA -Environmental Due Diligence Audit EA- External or Supplier Audit or Verification Audit HSEC – Health, Safety, Environment & Community Audit (SHE) – denotes safety and occupational health issues also dealt with * denotes AJH was lead environmental auditor # denotes AJH was contracted specialist local environmental auditor for overseas environmental consultancy, auditing firm or client + denotes work undertaken as an ICMI-accredited Lead Auditor (Cyanide Code) No of days shown indicates number of actual days on site for audit. [number] denotes number of days involved in audit preparation and report write up. 1991 *2 day [4] ECA - AECI Chlor-Alkali Plastics, Umbogintwini, KwaZulu-Natal, South Africa. November 1991. *2 day [4] ECA - AECI Chlor-Alkali Plastics- Environmental Services, Umbogintwini, KwaZulu-Natal, South Africa. November 1991. *2 Day [4] ECA - Soda Ash Botswana, Sua Pan, Botswana. November 1991. 1992 *2 Day [4] EA - Waste-tech Margolis, hazardous landfill site, Gauteng, South Africa. February 1992. *2 Day [4] EA - Thor Chemicals Mercury Reprocessing Plant, Cato Ridge, KwaZulu-Natal, South Africa. March 1992. 2 Day [4] EMA - AECI Explosives Plant, Modderfontein, Gauteng, South Africa. March 1992. *2 Day [4] EMA - Anikem Water Treatment Chemicals, Umbogintwini, KwaZulu-Natal, South Africa. March 1992. *2 Day [4] EMA - AECI Chlor-Alkali Plastics Operations Services Group, Midland Factory, Sasolburg. March 1992. *2 Day [4] EMA - SA Tioxide factory, Umbogintwini, KwaZulu-Natal, South Africa.
    [Show full text]
  • SUMMARY AUDIT REPORT Anglogold Ashanti Iduapriem Gold Mine, Ghana 4Th – 8Th March 2019 ______
    Eagle Environmental SUMMARY AUDIT REPORT AngloGold Ashanti Iduapriem Gold Mine, Ghana 4th – 8th March 2019 _______________________________________________________________________ INTERNATIONAL CYANIDE MANAGEMENT INSTITUTE Cyanide Code Compliance Audit Gold Mining Operations Recertification Summary Audit Report AngloGold Ashanti Iduapriem Gold Mine Ghana th th 4 – 8 March 2019 Iduapriem Gold Mine Signature of Lead Auditor 18th May 2019 Page 1 of 32 Eagle Environmental SUMMARY AUDIT REPORT AngloGold Ashanti Iduapriem Gold Mine, Ghana 4th – 8th March 2019 _______________________________________________________________________ Name of Operation: AngloGold Ashanti Iduapriem Limited Name of Operation Owner: AngloGold Ashanti Name of Operation Operator: AngloGold Ashanti Iduapriem Limited Name of Responsible Manager: Samuel Bonney Noi Address: P. O Box 283, Tarkwa, Western Region Country: Ghana Telephone: +233 277 555038 E-Mail: [email protected] Location Detail and Description of Operation INTRODUCTION AngloGold Ashanti Iduapriem Gold Mine is located in the Western Region of Ghana, about 17km southwest of Tarkwa. The original Iduapriem Gold Mine started operating in June 1992 and was designed to treat approximately 2.4Mtpa (million tons per annum). The plant has undergone several expansions carried out since original commissioning. The most recent expansion works were completed and commissioned in November 2017, where the process was changed to a fully operational CIL(carbon-in-leach) process. The process plant now has a capacity to treat approximately 5.1 Mtpa, at a recovery of 96%, to produce about 253,000 ounces of gold per annum. The operation utilizes two SAG Mills and two Ball Mills which run in two parallel closed circuits. CRUSHING PLANT Ore mined from “Ajopa”, Blocks 7 and 8, and “block 3 valley” is hauled by means of 777 dump trucks to the Crushing Plant.
    [Show full text]
  • Sustainable Development Report 2016 Contents
    SUSTAINABLE DEVELOPMENT REPORT 2016 CONTENTS HOW TO NAVIGATE THROUGH THIS REPORT This is an interactive PDF. Navigation tools are available at the top left of each page and throughout the report. Click on: Additional Glossary Contents page Print Previous page Next page Undo Search Website Email Download Page reference content of terms SUSTAINABLE DEVELOPMENT REPORT 2016 1 WHO WE ARE To create value for our shareholders, our employees and our business and social partners through safely and responsibly exploring, mining and marketing our products. Our primary focus is gold, but we will pursue value creating opportunities in other minerals OUR where we can leverage our OUR existing assets, skills and VISION experience to enhance the VALUES delivery of value. SUSTAINABLE DEVELOPMENT REPORT 2016 2 WHO WE ARE (CONTINUED) TEGIC TRA FOC E S US R Improve portfolio quality A O R C E Headquartered in Johannesburg, R A South Africa, AngloGold Ashanti has a U capital expenditure S O Optimise overhead, costs and globally diverse, world-class portfolio of operations and projects. Supporting our strategy for ngloGold Ashanti is the third-largest gold Ensure financial flexibility sustainable mining company in the world, measured cash flow A by production. It has 17 gold mines in improvements and returns nine countries, as well as several exploration programmes in both the established and new gold producing regions of the world. Maintain long-term optionality Focus on people, safety and sustainability OUR BUSINESS OBJECTIVES Focus on people, safety Ensure
    [Show full text]
  • Perenti Awarded New $280M Contract at Iduapriem
    19 July 2021 Perenti’s work in hand increases further with a new $280 million contract at Iduapriem Perenti Global Limited (ASX: PRN) (‘Perenti’ or ‘the Company’) is pleased to announce that AMAX, a joint venture between Perenti’s surface mining business in Africa, African Mining Services (‘AMS’) and leading Ghanaian mining services company, MAXMASS Limited (‘MAXMASS’), has been awarded a new ~$470 million (100% share), five-year contract at AngloGold Ashanti’s Iduapriem gold mine in the Western Region of Ghana. Perenti work in hand will increase by ~$280 millioni (Perenti share) over the term of the contract and is expected to commence immediately. The new contract is structured as a 60:40 joint venture agreement between AMS and MAXMASS and represents AMS’s significant and ongoing commitment to developing and expanding the capacity and capability of our local partners. Mark Norwell, Managing Director and CEO of Perenti, said the continued transformation of AMS, including the winning of quality projects underpinned by robust financial and commercial disciplines remains a key strategic initiative in Perenti’s 2025 Group Strategy. “We’re delighted to be extending our relationship with our long-standing client, AngloGold Ashanti. AMS has a reputation for delivering excellence while generating enduring value and certainty for stakeholders and the award of this new contract at a site where AMS has previously operated for AngloGold Ashanti provides further support for that reputation. We look forward to continuing to partner with AngloGold Ashanti.” Perenti Mining Chief Executive Officer, Paul Muller, said AMS had a long history of delivering operational excellence and value to clients, having provided mining services in Ghana for 30 years.
    [Show full text]
  • Modder House, No. 1 High Street, Moddercrest Office Park
    Modder House, No. 1 High Street, Moddercrest Office Park, Modderfontein 1609, Gauteng, South Africa PO Box 9820, Edenglen, Johannesburg 1613, Gauteng, South Africa Tel: +27 (0) 11 608 – 2141 Fax: +27 (0) 11 608 – 2142 Website: www.SENET.co.za Table of Contents Summary ........................................................................................................................... i Why SENET? ........................................................................................................................................ i Company Profile .............................................................................................................. iii Company Capability Statement ......................................................................................... iv Overview ............................................................................................................................................ iv Project Services ................................................................................................................ v Project Management........................................................................................................................... v Engineering.......................................................................................................................................... v Procurement & Logistical Management ............................................................................................. v Construction Management ................................................................................................................
    [Show full text]
  • Carbon Disclosure Project Anglogold Ashanti
    CDP 2013 Investor CDP 2013 Information Request Carbon Disclosure Project AngloGold Ashanti Module: Introduction Page: Introduction 0.1 Introduction Please give a general description and introduction to your organization AngloGold Ashanti, one of the world's leading gold producers, has a portfolio of long-life, relatively low-cost assets with a variety of orebody types in key gold- producing regions around the world. AngloGold Ashanti produced 3.94 million ounces of gold in 2012 - an estimated of global production - making it the third largest gold producer in the world. AngloGold Ashanti has 21 operations located in 10 countries on four continents, together with a substantial project pipeline and a focused, global exploration programme. AngloGold Ashanti currently operates in South Africa, Argentina, Australia, Brazil, Ghana, the Republic of Guinea, Mali, Namibia, Tanzania and the United States. The bulk of its production came from deep level underground operations (30%) and surface operations (1%) in South Africa. Contributions from other countries were Ghana (12%), Australia (7%), Brazil (13%), Mali (8%), Guinea (6%), Tanzania (14%), USA (6%), Argentina (6%) and Namibia (2%). Headquartered in Johannesburg, South Africa, AngloGold Ashanti's primary listing is on the Johannesburg Stock Exchange (ANG). It is also listed on the following securities exchanges: New York (AU), London (AGD), Australia (AGG) and Ghana (AGA). 0.2 Reporting Year Please state the start and end date of the year for which you are reporting data. The current reporting year is the latest/most recent 12-month period for which data is reported. Enter the dates of this year first. We request data for more than one reporting period for some emission accounting questions.
    [Show full text]
  • A Case Study of Anglogold Ashanti, Iduapriem Mines)
    ASSESSING THE EFFECTS OF TAXATION ON THE MINING INDUSTRY (A CASE STUDY OF ANGLOGOLD ASHANTI, IDUAPRIEM MINES) BY DAVID KOJO SMITH A THESIS SUBMITTED TO THE KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF BUSINESS ADMINISTRATION (FINANCE) AUGUST, 2015 DECLARATION I, David Kojo Smith, hereby declare that this thesis is my own work towards the Masters programme, and to the best of my knowledge, it contains no materials previously published by another person nor material which has been accepted for the award of any other degree of the University or any other university, except where due acknowledgement has been made in the text. David Kojo Smith …………………… …………………. (PG 9616913) Signature Date Certified by: Prof. J.M. Frimpong …………………… …………………. (Supervisor) Signature Date Certified by: Dr. K.O. Appiah …………………… …………………. (HOD, Accounting and Finance) Signature Date ii DEDICATION This work is dedicated to my mother, Alice Gifty Kittoe, for all her encouragement, prayers and support in bringing me to this level. I also dedicate it to my dear wife Mama Akose, my children, Derick Kojo Smith, Victoria Smith, Juanita Smith, Cindy Smith and Allswell Smith for their understanding, love, care and support in my academic pursuit. iii ACKNOWLEDGEMENT My ultimate gratitude goes to the Almighty God for his mercies, kindness, protection and love to me from the beginning to the completion of this work. I wish to acknowledge my supervisor, Prof. J.M. Frimpong’s encouragement and diverse contributions towards the completion of this study. Without his advice, critisms and directions, this work would not have been possible.
    [Show full text]
  • Mineral Resource and Ore Reserve in Accordance with the JORC and SAMREC Codes
    Supplementary Information: Mineral Resource 06 and Ore Reserve Page 112 Page 114 Page 48 Page 55 Page 42 Page 50 Page 44 It is AngloGold Ashanti policy to report its Mineral Resource and Ore Reserve in accordance with the JORC and SAMREC codes. Page 2_AngloGold Ashanti_Mineral Resource and Ore Reserve 2006 Page 91 Page 84 Page 87 Page 95 Page 70 Page 69 DRC Page 106 Page 71 Page 76 Page 104 Page 100 Page 59 Page 98 10 18 21 Mineral Resource 2 Page 66 and Ore Reserve 24 Page 62 Summary 28 8 31 34 9 37 AngloGold Ashanti_Mineral Resource and Ore Reserve 2006_Page 1 MINERAL RESOURCE AND ORE RESERVE Ore Reserves and Mineral Resources are reported in accordance with the minimum standard described by the Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code, 2004 Edition), and also conform to the standards set out in the South African Code for the Reporting of Mineral Resources and Mineral Reserves (the SAMREC 2000 Code). Mineral Resources are inclusive of the Ore Reserve component unless otherwise stated. Mineral Resources The 2006 Mineral Resource increased by 14.1 million ounces to 181.6 million ounces before depletion. After a depletion of 8.3 million ounces, the net increase is 5.8 million ounces. Mineral Resources were estimated at a gold price of $650 per ounce in contrast to the $475 used in 2005. The increased gold price resulted in an increase of 5.8 million ounces while successful exploration and revised modelling resulted in a further increase of 7.6 million ounces.
    [Show full text]
  • Summary Audit Report 2016
    Eagle Environmental SUMMARY AUDIT REPORT AngloGold Ashanti Iduapriem Gold Mine, Ghana 30th November – 4th December 2015 _______________________________________________________________________ INTERNATIONAL CYANIDE MANAGEMENT INSTITUTE Cyanide Code Compliance Audit Gold Mining Operations Certification Summary Audit Report AngloGold Ashanti Iduapriem Gold Mine Ghana th th 30 November – 4 December 2015 Iduapriem Gold Mine Signature of Lead Auditor 10th March 2016 Page 1 of 26 Eagle Environmental SUMMARY AUDIT REPORT AngloGold Ashanti Iduapriem Gold Mine, Ghana 30th November – 4th December 2015 _______________________________________________________________________ Name of Operation: AngloGold Ashanti Iduapriem Limited Name of Operation Owner: AngloGold Ashanti Name of Operation Operator: AngloGold Ashanti Iduapriem Limited Name of Responsible Manager: Samuel Bonney Noi Address: P. O Box 283, Tarkwa, Western Region Country: Ghana Telephone: +233 277 555038 E-Mail: [email protected] Location Detail and Description of Operation AngloGold Ashanti (Iduapriem) Limited is located in the Western Region of Ghana, about 17km southwest of Tarkwa. The Iduapriem Mine started operating in June 1992. The original plant, designed to treat about 2.4Mtpa of ore, has undergone several expansions. The most recent expansion work was completed and commissioned in 2009 which incorporated a new 800tph 2- stage crushing plant, a second ball mill at the CIL plant together with a 24 meter diameter thickener, a second Knelson concentrator, and an upgrade of the oxygen plant capacity from 4.0 to 8.0 tonnes per day. The main objective of the expansion project was to increase plant throughput to 4.3Mtpa. a) GRAVITY / ILR A gravity circuit comprising of 2 XD48 centrifugal (Knelson) concentrators and an In-line Leach Reactor (ILR – Series 1000) recovers free gold (gravity gold) by processing the dense particles from the cyclone underflow slurry.
    [Show full text]
  • A N N U a L R E P O R T 2 0
    ANNual RepOrt 2010 Company Particulars DIRECTORS AUDITORS Mr Josef El-Raghy, Deloitte Touche Tohmatsu Executive Chairman Level 14, Woodside Plaza, Mr Harry Michael, 240 St Georges Terrace Chief Executive Officer Perth WA 6000 Mr Trevor Schultz, Executive Director of Operations UK BROKERS Mr H Stuart Bottomley, Ambrian Partners Limited Senior Non Executive Director Old Change House, Mr Colin Cowden, 128 Queen Victoria Street Non Executive Director London EC4V 4BJ, United Kingdom T: + 44 (0) 207 7634 4700 Dr Thomas Elder, Non Executive Director Bank of America Merrill Lynch 2 King Edward Street Professor G Robert T Bowker, London EC1A 1HQ, United Kingdom Non Executive Director T: + 44 20 7996 1000 COMPANY SECRETARY Stifel Nicolaus Weisel 10 Dominion Street, 5th Floor Mrs Heidi Brown London EC2M 2EE, United Kingdom T: + 20 7877 4300 CHIEF FINANCIAL OFFICER Mr Mark Di Silvio FINANCIAL PUBLIC RELATIONS ADVISER GENERAL MANAGER – EGYPT Buchanan Communications Mr Youssef El-Raghy 45 Moorfields, London EC2Y 9AE T: + 44 (0) 20 7466 5000 HEAD OFFICE 57 Kishorn Road STOCK EXCHANGES Mount Pleasant, Western Australia, 6153 The Company is listed on the following T: + 61 8 9316 2640 stock exchanges: F: + 61 8 9316 2650 - the Main Market of the London Stock W: www.centamin.com Exchange (LSE:CEY); and EGYPT OFFICE - the Toronto Stock Exchange (TSX:CEE). 361 El-Horreya Road The Primary Listing is in London. Sedi Gaber Alexandria, Egypt LOCATION OF REGISTERS T: + 2 0354 1125 9 OF SECURITIES F: + 2 0352 2635 0 Australia BANKERS Computershare Investor Services
    [Show full text]
  • Erasmus Thesis.Pdf
    KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY FACULTY OF RENEWABLE NATURAL RESOURCES DEPARTMENT OF AGROFORESTRY EVALUATION OF LAND RECLAMATION PRACTICES AT ANGLOGOLD ASHANTI, IDUAPRIEM MINE LTD, TARKWA. A THESIS SUBMITTED TO THE SCHOOL OF GRADUATE STUDIES, KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY, KUMASI IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN AGROFORESTRY. BY TETTEH, ERASMUS NARTEH (BSc. NAT. RES. MGT., KUMASI) AUGUST, 2010 1 DECLARATION I declare that except for references to other people’s research which have been duly cited, this thesis submitted to School of Graduate Studies, Kwame Nkrumah University of Science and Technology, Kumasi for the degree of Master of Science in Agroforestry is my own investigation. TETTEH ERASMUS NARTEH ........................ ...................... (STUDENT, MSc. AGROFORESTRY) SIGNATURE DATE DR. K. TWUM-AMPOFO ...................... ................. (SUPERVISOR) SIGNATURE DATE DR. (MRS.) OLIVIA AGBENYEGA ...................... ................... (HEAD OF DEPARTMENT) SIGNATURE DATE 2 ACKNOWLEDGEMENTS I am grateful to the Almighty God who has been gracious to me through our Lord and Saviour Jesus Christ to enable me pursue this degree to a successful end. I am indebted to my supervisor, Dr. Kwame Twum-Ampofo for his useful fatherly advice, guidance and constructive criticisms in planning and execution of this study. Despite his busy schedules, read, made comments and produced reports on time with encouragement to successfully complete this work. My profound gratitude goes to Dr. Naresh Thevathasan of the School of Environmental Biology, University of Guelph, Canada who has been my mentor and father during my five months stay in Canada on the project and also doubles as the Project Manager of Agroforestry Practices to enhance Resources Poor Livelihood (APERL) of which I got the scholarship to fund this study.
    [Show full text]
  • Ni 43-101 Technical Report on a Feasibility Study of the Wassa Open
    NI 43-101 TECHNICAL REPORT ON A FEASIBILITY STUDY OF THE WASSA OPEN PIT MINE AND UNDERGROUND PROJECT IN GHANA Effective Date December 31, 2014 Prepared For Golden Star Resources Ltd 150 King Street West Sun Life Financial Tower, Suite 1200 Toronto ON M5H 1J9 Canada Report Prepared by SRK Consulting (UK) Limited UK6238 SRK Qualified Persons Mike Beare CEng, BEng, ACSM, MIoM3 Rod Redden BEng, MBA MAusIMM(CP) Neil Marshall CEng, MSc(DIC), MIoM3 Chris Bray BEng, MAusIMM(CP) Paul Riley CEng, FIMMM ) GSR Qualified Person Mitch Wasel BSc, MAusIMM(CP) SRK Consulting Wassa FS – Details COPYRIGHT AND DISCLAIMER Copyright (and any other applicable intellectual property rights) in this document and any accompanying data or models is reserved by SRK Consulting (UK) Limited ("SRK") and is protected by international copyright and other laws. This document may not be utilised or relied upon for any purpose other than that for which it is stated within and SRK shall not be liable for any loss or damage caused by such use or reliance. In the event that the recipient of this document wishes to use the content of this document in support of any purpose beyond or outside that which it is expressly stated or for the raising of any finance from a third party where the document is not being utilised in its full form for this purpose, the recipient shall, prior to such use, present a draft of any report or document produced by it that may incorporate any of the content of this document to SRK for review so that SRK may ensure that this is presented in a manner which accurately and reasonably reflects any results or conclusions produced by SRK.
    [Show full text]