Bisrat Yibas - Curriculum Vitae

CURRENT ADDRESS
Postal address: Department  of  Geology,  University  of  the  Free  State,  PO  Box  339,  Bloemfontein, 9300, South Africa.
Tel: +27 (0) 514013080.
Fax: Cell: +27 (0) 0733572033 / 082 4853002.
Email: YibasBabsoB@ufs.ac.za.

KEY EXPERIENCE

• Environmental geology & geochemistry
• Precambrian geology, geological mapping & exploration geology
• Geoscientific leadership and management

TERTIARY EDUCATION 

• Ph.D. in Precambrian geology, geochemistry and genesis and controls of gold mineralization, University of the Witwatersrand, Johannesburg, South Africa. 
• M.Sc. in Applied Geology, Department of Geology & Geophysics, Indian Institute of Technology (IIT), Kharagpur, India
• B.Sc. in Geology, Addis Ababa University, Ethiopia.

SCHOLARSHIPS/ AWARDS

• United Nations Scholarship for MSC study, 1987-88.
• Anglo-American Research Fund for PhD, 1996-2000  

SPECIALIST TRAINING/COURSES (selected)

• Project management /managing by project, by Davis & Dean, May 2017.
• Governance Beyond Boards, a leadership governance intervention, Understanding good governance in a ‘business’ environment, 27-28 September 2016, Pretoria, South Africa by Terrance M Booysen (Terry), CGF Research Institute.
• PFMA public financial management course: June 2016, Pretoria South Africa.
• Diversity & Inclusion in a work place, May 04-05 2016, Pretoria, South Africa, by Mandate Molefi. 
• Practical Job Grading Facilitation, Job Grading Training on Paterson Evaluation System, Job Grading Training on Paterson Evaluation System, June 03, 2015; by Business Enterprises, University of Pretoria.
• Groundwater modelling with DHI-Wasy FEFLOW - Finite element Subsurface Flow & Transport Simulation System, Sept 2011, Aachen, Germany.
• Introduction to STATISTICA, 2009, StatSoft SA – Enterprise Solutions (Pty) Ltd. 
• Advanced off-road driving and recovery Course, 2007, Gerotek Training, Pretoria, South Africa.
• Project Management principles and practices in organisations, 2006, Faculty of Engineering, Built Environment and Information Technology management, University of Pretoria.
• Training in HYDRUS 2D Modelling package for water and solute transport in unsaturated porous medium with particular emphasis on water balance modelling of mine residue deposits, SBEEH, University of KwaZulu Natal, 2005.
• The recognition and interpretation of microstructures, a short course by Prof. Cees Passchier, University of Mainz, Germany; 9-11 December 1998, Department of Geology, Wits University, Johannesburg.
• Stable isotopes as tracers of geological processes. 4-5th June 1998, Department of the Witwatersrand, Johannesburg, by Ian. S. Buick from the Department of Earth Sciences, La Trobe University, Melbourne, Australia.
• New techniques in Structural geology, by Peter Cobbold from Department of geosciences, University of Rennes, France. 29-30 September 1997 CSIR, MiningTech, Johannesburg, South Africa. 
• Precambrian sedimentation systems, 23rd October 1997, University of Pretoria presented by the Global Precambrian Sedimentation Syndicate on behalf of the sedimentary Division of the GSSA.
• A short course on industrial minerals organized by BGS and UNIDO, Lusaka, Zambia: March 7-14 1994.

WORK EXPERIENCE

• Since July 2019: Professor and Head of Department, Geology Department, Faculty of Natural and Agricultural Sciences (NAS), Univeristy of the Free State (UFS).
• July 2017 – June 2019: Specialist Geoscientist, Council for Geoscience, Pretoria, South Africa Responsibilities: leads and participates in major geo-scientific projects (environmental geology, mineral exploration & Mapping Geology).
• September 2014-June 2017:  Manager, Economic Geology Competency, Council for Geoscience, Pretoria, South Africa July 2005- August 2014 Specialist Geoscientist, Council for Geoscience, Pretoria, South Africa.
• Responsibilities: leads and participates in major geo-scientific projects (environmental geology, mineral exploration & Mapping Geology).
• 2002 –2005: Senior Geochemist at Pulles Howard & de Lange Inc.
• 2000-2001: researcher and consultant Geologist: mapping geologist, exploration geologist for gold and base metals; groundwater and environmental impact assessment studies.
• 1999: Exploration geologist, ZamAnglo Exploration Pty Ltd; A subsidiary of Anglo-American South Africa Ltd., Kitwe, Zambia.
• 1994-1996: Head Mineralogist: Mineralogical Laboratory Services, Eastern and Central African Mineral Resources Development Centre, P. O. Box 3053, Dar es Salaam, Tanzania.
• 1988 – 1994: Senior Geologist and lecturer (petrology - mineralogy) for Training in Mineral Exploration, United Nations Development Project, Ethiopian Institute of Geological Surveys. Duties: a) training geologists in modern mineral exploration techniques (integrated approach), b) supervision of mineral exploration projects.
• 1984 – 1986: Geologist for various mineral exploration projects (mainly gold, base metals and coal), Ethiopian Institute of the Geological Surveys, Ethiopia.

PUBLICATIONS

Chapters in books

1. Yibas B. (2020). Oxidation Processes and Formation of Acid Mine Drainage from Gold Mine Tailings: A South African Perspective, in Recovery of Byproducts from Acid Mine Drainage Treatment (Eds., E. Fosso-Kankeu, J. Burgess and C. Wolkersdorfer) © 2020 Scrivener Publishing LLC, pp 73–96.
2. Netshitungulwana R, Yibas B, Gauert C, Vermeulen D, Novhe O, and Motlakeng T (2015) Investigation of the metal contamination in the upper Olifants Primary catchment, using tram sediment geochemistry, Witbank coalfield, South Africa, in Sediment Matters (Eds.,P Heininger and J Cullman), Spirnger International Publishing International, Switzerland, 2015,  pp169-184.
3. Stern P.R., Johnson, Kröner A. and Yibas B. (2003). Neoproterozoic Ophiolites of the Arabian–Nubian shield, in: T. Kusky (Ed.), Precambrian Ophiolites and Related Rocks, Developments in Precambrian Geology, vol. 13, Elsevier, Amsterdam, pp. 95–128.

Peer-reviewed outputs (Journal articles, and conference proceedings) 

1. Novhe NO, Yibas B, Coetzee H, Mashalane T, Vadapalli V.R. K, Wolkersdorfer C. (2018). Geochemistry and Mineralogy of Precipitates Formed During Passive Treatment of Acid Mine Drainage in Ermelo Coalfield, South Africa in: “Risk to Opportunity” (Wolkersdorfer, Ch.; Sartz, L.; Weber, A.; Burgess, J. and Tremblay, G. , Eds., Proceedings of the11th ICARD | IMWA | MWD Conference –“Risk to Opportunity”, South Africa. P172-176.
2. 2.2. Lusunzi, R., Gumbo, J.R., Yibas, B. and Novhe O. Acid Base Accounting (ABA) of mine tailings for the Potential of Acid Mine Drainage in the Sabie-Pilgrim’s Rest Goldfields, South Africa in: “Risk to Opportunity” (Wolkersdorfer, Ch.; Sartz, L.; Weber, A.; Burgess, J. and Tremblay, G. , Eds., Proceedings of the11th ICARD | IMWA | MWD Conference –“Risk to Opportunity”, South Africa. p.392-398.
3. Mashalane, TB, Novhe, ON, Yibas, B, Coetzee, H, Wolkersdorfer, C. (2018). Metal removal from mine water using integrated passive treatment system at Witkrantz discharge point in the Ermelo Coal¬ elds, Mpumalanga, in: “Risk to Opportunity” (Wolkersdorfer, Ch.; Sartz, L.; Weber, A.; Burgess, J. and Tremblay, G. , Eds., Proceedings of the11th ICARD | IMWA | MWD Conference –“Risk to Opportunity”, South Africa. p146-150.
4. Lusunzi R., Gumbo, J. R., Yibas, B. and Novhe, NO. (2017). Geochemical and Mineralogical Characterization of Gold mine tailings for the potential of acid mine drainage in the Sabie-Pilgrim’s Rest Goldfields, South Africa, In: Mine Water and Circular Economy (Eds., Wolkersdorfer C, Sartz L, Sillanpää M and Häkkinen A), Lappeenranta, Finland. P1381-1398.
5. Lusunzi R., J. R.,Gumbo, Yibas, B., and Novhe, NO (2017). Mineralogical-geochemical properties of tailings from the sabie-pilgrim’s rest goldfields for the potential of acid mine drainage, South Africa, 9th Int`l Conf. on Research in Chemical, Agricultural, Biological & Environmental Sciences (RCABES-2017) Nov. 27-28, 2017 Parys, South Africa. 272-275.
6. Novhe NO, Yibas, B, Coetzee H, Atanasova M, Shabalala A (2016). Long-term remediation of acid mine drainage from abandoned coal mine using integrated (anaerobic and aerobic) passive treatment system, in South Africa, a pilot study: in Mining Meets Water – Conflicts and Solutions, (eds., Drebenstedt et. al.), Proceedings IMWA Annual Conference, Freiberg/Germany, July 11-15, 2016, pp68-75.
7. Novhe N. O., Yibas B., Netshitungulwana R., and Lusunzi R (2014). Geochemical and Mineralogical Characterization of Mine Residue Deposits in the Komati/Crocodile Catchment, South Africa: An Assessment for Acid/Alkaline Mine Drainage, in An Interdisciplinary Response to Mine Water Challenges (Eds. Sui, Sun & Wang), China University of Mining and Technology Press, Xuzhou, ISBN 978-7-5646, 2014, pp.359-365.
8. Yibas B, Netshitungulwana R., Novhe O, Mengistu H., Sakala E., Thomas A. and, Nyabeze P (2013). A holistic approach towards best management practices of mine pollution impacts using a catchment area strategy, South Africa, in Reliable Mine Water Technology, (Eds) Wolkersdorfer, Brown & Figueroa, (Editors), IMWA2013, pp 117-122. 
9. Novhe N. O., Netshitungulwana R., Yibas B., Motlakeng T, Sakala E. 2013. Metal pollution sources and transport in mined watershed: an insight from Ermelo Coalfield, South Africa, in Reliable Mine Water Technology, (Eds) Wolkersdorfer, Brown & Figueroa, (Editors), IMWA 2013, pp 67-72. 
10. Netshitungulwana R, Yibas B., Novhe, N. O. and Motlakeng, T, 2013. Stream sediment geochemistry of the areas impacted by mining around Emalahleni (formerly known as Witbank), South Africa: Finger printing AMD potential point sources in Reliable Mine Water Technology, (Eds) Wolkersdorfer, Brown & Figueroa, (Editors), IMWA 2013, pp 17-22.
11. Yibas, B, W Pulles, S Lorentz, B Maiyana, C Nengovhela (2012). Oxidation process and hydrology of tailings dams: Implication for acid mine drainage from TSFs management -The Witwatersrand experience, South Africa. – In: McCullough, C.D.; Lund, M.A.; Wyse, L.: International Mine Water Association Symposium. – p. 245 – 255; Bunbury, Australia.
12. Netshitungulwana, R and B. Yibas. (2012). Stream sediment geochemistry of the Olifants catchment, South Africa: Implication for acid mine drainage. – In: McCullough, C.D.; Lund, M.A.; Wyse, L.: International Mine Water Association Symposium. – p. 257 – 264; Bunbury, Australia.
13. Mengistu, H., Yibas, B., Diop S, Alemayehu T. and Demile M (2012), Investigation of phosphatic-vermiculite-heavy metal interaction and the implication to pollution of Solati River in Limpopo Province, South Africa. – In: McCullough, C.D.; Lund, M.A.; Wyse, L.: International Mine Water Association Symposium. – p. 713 – 721; Bunbury, Australia.
14. Ogola, J., Maiyana, B. and Yibas B., (2011). Water balance determination in mine water residue deposits: case studies in the Witwatersrand basin, South Africa., pp615. Proceedings of the International Mine water Association Congress 2011, RWTH Aachen, Germany, 4-11 September 2011. ISBN 978-1-897009-47-5.
15. Nengovhela, AC, Yibas, B and Ogola, JS (2007). An investigation into the availability of oxygen in gold tailings dams of the Witwatersrand basin with reference to their acid mine drainage potential. Water SA Vol. 33 No. 2, p271-274. DOI: 10.4314/wsa.v33i2.49088. eISSN: 0378-4738.
16. Nengovhela, AC, Yibas, B and Ogola, JS (2006). Characterisation of gold tailings dams of the Witwatersrand Basin with reference to their acid mine drainage potential, Johannesburg, South Africa. Water SA Vol. 32 No. 4, p409-506.
17. Yibas B., Reimold, W. U. and Koeberl, C. (2003). Geochemistry of the Mafic Rocks of the ophiolitic fold and thrust belts of Southern Ethiopia: Constraints on the Tectonic setting during the Neoproterozoic, Precambrian Research, Vol. 121, 3-4, p157-183. DOI-10.1016/S0301-9268(02)00197-3.
18. Yibas B., Reimold, W. U., Armstrong, R., Koeberl, C. Anhaeusser, C. R. and Phillips D., 2002. The tectonostratigraphy, granitoid geochronology and geological evolution of the Precambrian of southern Ethiopia, Journal of African Earth Sciences, V34/1-2, pp.57-84. https://doi.org/ 10.1016/S0899-5362(01)00099-9.
19. Yibas B., Reimold, W. U. and Anhaeusser C. R. The geodynamic evolution of the Precambrian of southern Ethiopia, 2001, Gondwana Research, V.4, p835-6. https://doi.org/10.1016/S1342-937X(05)70616-X.
20. Yibas, B. 1999. Provenance and Tectonic Setting of the Metasedimentary Rocks of the Neoproterozoic Adola Belt of Southern Ethiopia. Gondwana Research, Volume 2, Issue 3, p.377-386. https://doi.org/10.1016/S1342-937X(05)70277-X.

Technical reports (peer Reviewed)

1. Nyabeze P, Saeze H, Yibas B, Tekere M, Tshibalo AE, Venter JS, Olivier J, Jonker CZ, Sekiba M, & Motalkeng T, The geological and biological hot spring scene in South Africa, 2013, Chapter 2 (p21): in Optimal utilisation of thermal springs in South Africa, (Eds, Olvier, J & Jonker, CZ), WRC Report No, TT577/13, p.158, Nov 2013. ISBN 978-1-4312—0481-6.
2. Yibas, B, Pulles, W., Lorentz, S. and Maiyana, B., 2011. Development Of Water Balances For Operational And Post-Closure Situations For Gold Mine Residue Deposits To Be Used As Input To Pollution Prediction Studies For Such Facilities, WRC Report No. 1460/1/11, ISBN 978-1-4312-0109-9.
3. Zhao B; Usher B; Yibas B; Pulles W; Evaluation and validation of geochemical prediction techniques for underground coal mines in the Witbank/Vryheid regions, Report to the Water Research Commission WRC Report No: 1249/1/10, 212p.
4. Yibas, B, Pulles W and C Nengovhela (May 2010), Kinetic Development Of Oxidation Zones In Tailings Dams With Specific Reference To The Witwatersrand Gold Mine Tailings Dams, Report to the Water Research Commission, WRC Report No. 1554/1/10, 105p. ISBN 978-1-77005-970-2.

Conference proceedings

1. Yibas B., The Geodynamic evolution of the Precambrian of Southern Ethiopia and its implication for Gold Mineralization, Geocongress 2018, 18-20 July 2018, pp264, Abstract volume, University of Johannesburg, South Africa.
2. Yibas B., The Ophiolites of Ethiopia and their implication on the assembly of Gondwana, pp265, Abstract volume. Geocongress 2018, 18-20 July 2018, Abstract volume, p.265, University of Johannesburg, South Africa.
3. Yibas, B. Netshitungulwana, R., Novhe O, Oberholster P. Management of mine water and AMD challenges using river water catchment area and Geo-environmental provinces approach, South Africa, Geocongress 2018, Abstract Volume, p.266, University of Johannesburg, South Africa.
4. Yibas B., The Geodynamic evolution of the Precambrian of Southern Ethiopia and its implication for Gold Mineralisation. The 9th International Conference on the Geology of Africa (ICGA), Assiut, Egypt, from 7-9 November 2017.
5. Yibas, B., Nengovhela, C. and Pulles, W., 2012. Kinetic development of oxidation zones in tailings dams with specific reference to the Witwatersrand gold mine tailings dams, Proceedings of the 34th International Geological Congress 2012, 5-10 August 2012, Brisbane Australia, p788.
6. 6.6. E. Sakala, E. Chirenje and B. Yibas, 2013. Investigation of possible contaminant plumes emanating from residual mine deposits in the Mpumalanga Province of South Africa: results from geophysical surveys, 13th Biennial Groundwater Division Conference and Exhibition (GWD), 9 pp, 17 - 19 Sep 2013, Durban South Africa.
7. Vadapalli, V. R. K., Yibas, B., Novhe, O, Netshitungulwana, R., and Hanise, B., 2013. Assessment of health impacts due to mining activities In South Africa. The 5th International Conference on Medical Geology, 2nd Symposium on Advances in Geospatial Technologies for Health, 25–29 August 2013, Hilton Crystal City Hotel, Arlington, Virginia, abstracts with programs, p58.
8. Yibas, B., Olivier, J., Tekere, M., Motlakeng T, and Jonker, CZ (2011). Preliminary health risk analysis of some of the thermal springs in Limpopo province, South Africa, Kenya Geothermal Conference, Safari Park Hotel, Nairobi, November 21-23, 2011 proceedings.
9. Yibas, B., Reimold, W.U., Armstrong, R., and Anhaeusser, C., (2005) Deformational belts and suture zones in the East African Orogen: a revisit in light of recent data from the Precambrian of southern Africa, GEO2005, Annual meetings of the geological society of South Africa, School of Geosciences, University of KwaZulu Natal, Durban, 4-7 July 2005.
10. Yibas, B., Nengovhela, C. Zhao, B., Eksteen, M., and Ogola, J. 2005. Development of Oxidation zones in the Witwatersrand gold mine tailings dams and implication to acid mine drainage.  GEO2005, Annual meetings of the geological society of South Africa, School of Geosciences, University of KwaZulu Natal, Durban, 4-7 July 2005.
11. Yibas B., Zhao, B. and Pulles, W. (2004). Geochemical prediction for acid mine drainage (AMD) from a small-scale coalmine project in South Africa: Geoscience Africa 2004, Abstract Volume, University of the Witwatersrand, Johannesburg, South Africa, pp.718-719.
12. Usher B., Yibas, B. and Zhao, B. (2004). The application of laboratory geochemical tests for water quality prediction at underground collieries: Geoscience Africa 2004, Abstract Volume, University of the Witwatersrand, Johannesburg, South Africa, pp659-661.
13. Zhao B., Usher, B., Yibas, B, and Pulles. W (2004). Geochemical modelling for long-term water quality prediction for underground coal mines in the Highveld and Vryheid regions: Geoscience Africa 2004, Abstract Volume, University of the Witwatersrand, Johannesburg, South Africa, pp738-739.
14. Yibas B., Reimold, W.U., and Anhaeusser C. R. 2000 The geological evolution of the Precambrian of southern Ethiopia, Abstract 27th Earth Science congress of the Geological Society of South Africa, 4-6 July 2000 Stellenbosch South Africa, supplement to abstract volume, p16-17.

Conference contributions

1. Netshitungulwana, R., Gauert, C., Vermeulen, D., Yibas, B. and Novhe, N.O., Geochemical baselines and metal deportment in the Upper Olifants Primary Catchment by using stream sediment geochemistry, Witbank Coalfield, South Africa. 35th International Geological Congress, Cape, Town, 28 August–2 September 2016.
2. Yibas, B., Reimold, W.U., Anhaeusser, C., and Hunt, J.P. 2016. Gold Mineralisation in the Precambrian of Southern Ethiopia, in: The Tectonic Evolution of Gondwana, 35th International Geological Congress, 27 August - 4 September 2016 Cape Town, South Africa.
3. Novhe, N.O., Yibas, B., Coetzee, H., Atanasova, M. and Netshitungulwana, R., Characterization of precipitates formed in anaerobic and aerobic units designed to treat acid mine drainage from an abandoned coal mine in Carolina, Mpumalanga (South Africa). 35th International Geological Congress, Cape, Town, 28 August–2 September 2016.
4. Netshitungulwana, Robert, Yibas, B. and Motlakeng, T. 2013. Stream sediment geochemistry of the B1 catchment areas impacted by Acid Mine Drainage, Olifants catchment, South Africa, Abstract, 6th International Conference on Water Resources and Environment Research, 3 – 7 June 2013 | Koblenz, Germany.
5. 5.P.K. Nyabeze, B. Yibas and E. Sakala. 2012. Investigation of contaminant plumes emanating from residual mine deposits in the Limpopo Province of South Africa, results from geophysical surveys. GeoManitoba 2012, September 30 - October 3, 2012 Winnipeg, Manitoba, p 90.
6. Yibas B. 1997. The tectonic implication of the geochemistry of the metabasic rocks of the Adola Neoproterozoic Belt of southern Ethiopia, in Cox, R. and Ashwal, L. D. (editors), Proceedings of the UNESCO-IUGS-IGCP-348/368 international field workshop on Proterozoic geology of Madagascar, Antananarivo, 16-30 August 1997. Gondwana Research Group, Miscellaneous Publ. No.5.

VI. Special contributions per invitation

1. Yibas B, Netshitungulwana, R., and Novhe, NO (2016). Management of mine water and AMD challenges using river water catchment area and Geo-environmental provinces approach, South Africa (Keynote presentation) in: 35th International Geological Congress, 27 August - 4 September 2016, Cape Town, South Africa.
2. Yibas, B., (2012) Management of impacts of subsidence in coal mining regions: An Overview, the 9th Sino-American technology and engineering conference, p80-90.  
3. Ramontja, T., Coetzee, H., Hobbs, P. J., Burgess, J. E., Thomas, A., Keet, M., Yibas, B., van Tonder, D., Netili, F., Rust, U. A., Wade, P. and Maree, J. (2011). Mine Water Management in the Witwatersrand Gold Fields With Special Emphasis on Acid Mine Drainage Pretoria, Inter-Ministerial-Committee on Acid Mine Drainage. Report of the Team of Experts for the Inter-Ministerial Committee on Acid Mine Drainage: 146.

Research Reports

1. Robert Netshitungulwana and Yibas B, Investigations of the stream sediments geochemistry for metal pollution sources of the Olifants River Catchment, with emphasis on AMD: addressing nation-wide challenges using catchment-based approach: 87pp. Council for Geoscience, March 2012.
2. Yibas, B, Venter, J, Zhao, B, Nengobela, N. Lekoadu, S. Motlakeng, T., M. Kotoane, M Kwata, Sithole, Z. & Roelofse F. (2010). Geochemical assessment for prediction of pollution and acid mine drainage from gold mines of the West Rand, Wits, 87pp.
3. Yibas, B., Geochemical assessment for prediction of pollution of acid mine drainage from the Witwatersrand gold mines- a conceptual model methodologies, March 2008, Council for Geoscience, South Africa, Open Report No. 2007-0290, 22p.
4. Yibas, B., Foya, S., Selomane, M., and Molonyama, L. (2008). Oxidation processes and acid mine drainage from the Witwatersrand gold tailings dams, Council for Geoscience, South Africa, report No: 2007- 0289, 25p.
5. Yibas, B. Detailed site-specific geochemical assessment of borehole samples from Douglas colliery, 2005.
6. Yibas B. (2004), Water balance and hydrological modelling for the Tyre waste rock dump, Grootegeluk Colliery Tyre Dump Rehabilitation project (in final report complied by Pulles, W. 2004)
7. Yibas B. (2004) Geochemical sampling, analysis and ABA assessment of the Tyre waste rock dump, for Grootegeluk Colliery Tyre Dump Rehabilitation project (in final project report complied by Pulles, W. 2004)
8. Zhao, B., Yibas B., and Pulles, W. (2004) Conceptual model report for Grootegeluk Colliery Tyre dump rehabilitation project (in final project report complied by Pulles, W. 2004)
9. Yibas B., Zhao, B. and Nenegovhela, C. (2004) Geochemical and hydrological characterisation of selected gold tailings dams for studies of the kinetic development of oxidation zones in tailings dams with specific reference to the Witwatersrand gold mine tailings dams, WRC project no. K5/1554. Project Progress report to the WRC.
10. Yibas B. and Eksteen, M. (2004) Dynamic water- and salt-balance, Cullinan Diamond Mine, De Beers.
11. Pulles W. and Yibas, B. (2004), Hazard assessment of Vanchem magnetic and non-magnetic fractions from Highveld vanadium and chemicals (VANCHEM).
12. Yibas, B. (2003) Geochemical Assessment and Acid Base Accounting (ABA) of the coalmine waste (Durnacol No.7 Dump) for Environmental Rehabilitation Management Actions, Durban Navigation collieries.
13. William, P., Yibas, B., and Zhao B. (2003) Hazardous classification of "clean" slimes from Highveld Vanadium and chemicals (VANCHEM).
14. Yibas, B. (2002) Geochemical data analysis for assessment of the pollution potential of existing waste rock dumps and tailings dams for remediation planning, AngloGold, South Africa.
15. Yibas, B., Zhao, B., Pulles, W. (2002) Acid mine drainage potential prediction through geochemical assessment for the Magdala coalmine project.
16. Yibas B. (2002) Detailed soil survey and soil characterization for soil cover installation for the prevention of acid mine drainage from coalmine deposit No 7, Durban Navigation collieries.
17. Germishuyse T. and Yibas, B. (2002) Statistical study on sample size optimization for assessment of the pollution potential of gold mine waste deposits of AngloGold, South Africa
18. Pulles, W. Zhao, B., Germishuyse, T., and Yibas, B. (2002), geochemical assessment of the pollution potential of waste deposits, AngloGold.
19. Yibas, B, Prasad K., Tessema, A. and Molefe, S., 2009. The economic geology and stratigraphy of the Nietverdiend (2526AA) and Sesobe (2526AB) 1: 50000 map sheets, Annual progress report for 2008/2009, 26pp, NO: 2009- 0173, Council for Geoscience.
20. Macey, P.H., Miller, J.A., Armstrong, R.A., Bisnath, A., Yibas, B., Chevallier, L., Mukosi, N.C., Cole, J., le Roux, P. and Haddon, I.G. (2009). Map Explanation of 1:100 000 scale Sheets I46 – Ambararata, J46 – Beopoaka, I47 – Itondy, J47 – Belobaka, K47 – Ambatofotsy, I48 – Miandrivazo, J48 – Betrondro, K48 – Ambatondradama, I49 – Ankotrofotsy, J49 – Dabolava, K49 – Anjoma-Ramartina, L49 – Vasiana, M49 – Ankazomiriotra, N49 – Antsirabe, Ministère de L’Energie et des Mines – Project de Gouvernance des Ressources Minérales, Antananarivo, Madagascar and Council for Geoscience, Pretoria, South Africa.
21. Macey, P.H., Miller, J.A., Armstrong, R.A., Ingram, B.A., Bisnath, A., Yibas, B., Chevallier, L.,Finkelstein, J. and Haddon, I.G. (2008). Map Explanation of 1:100 000 scale sheets G41 – Ambohipaky, H41 – Bevary, G42 – Mangoboky, H42 – Bekodoka, G43 – Andolamasa, H43 - Andrafialava and parts of G40 – Ankasakasa, F40 - Saint-Andre, F41 – Betsalampy, H40 – Maroboaly-Sud, I40 – Soalala-Sud,I41 – Andranomavo, F42 – Marovoay Kely, I42 – Mahabe, F43 – Bebao, F44 – Antranogoaika, G44 – Morafeno, I43 – Ampoza, H44- Bemolanga and I44 Makaraingo. Ministère de L’Energie et des Mines – Project de Gouvernance des Ressources Minérales, Antananarivo, Madagascar and Council for Geoscience, Pretoria, South Africa.
22. Macey, P.H., Armstrong, R.A., Botha, P.M.W., Haddon, I.G., Wilson, M., Bisnath, A., Yibas, B. & Ingram, B. 2007. Project de gouvernance des ressources minerales services d`assistance tichnique pour le leve geologique des Zone E et F. CGS Status Report and the Resubmission of the Zone F Geological Report, Council for Geoscience. :1-69.
23. Macey, P.H., Miller, J.A., Armstrong, R.A., Bisnath, A., Yibas, B., Chevallier, L., Mukosi, N.C., Cole, J., le Roux, P. and Haddon, I.G. (2009). Map Explanation of 1:100 000 scale Sheets I46 – Ambararata, J46 – Beopoaka, I47 – Itondy, J47 – Belobaka, K47 – Ambatofotsy, I48 – Miandrivazo, J48 – Betrondro, K48 – Ambatondradama, I49 – Ankotrofotsy, J49 – Dabolava, K49 – Anjoma-Ramartina, L49 – Vasiana, M49 – Ankazomiriotra, N49 – Antsirabe, Ministère de L’Energie et des Mines – Project de Gouvernance des Ressources Minérales, Antananarivo, Madagascar and Council for Geoscience, Pretoria, South Africa.
24. Yibas, B, Ingram, BA, Baglow, N and Minnaar, H., 2007. Geology of the area north of Ambodilafa, Fianarantsoa province, Madagascar, 32pp, Report no. 2007-0249, Council for Geoscience, South Africa.
25. Yibas B., Reimold, W. U., Anhaeusser C. R. and Koeberl, C. Geochemistry of the granitoids of the Precambrian of southern Ethiopia: Constraints on the tectonic regime during the Neoproterozoic-Early Palaeozoic (900-500 Ma). Inform. Circ. Econ. Geol. Res. Inst., Univ. Witwatersrand, Johannesburg 350, 31pp.
26. Yibas B., Reimold, W. U. and Anhaeusser C. R., Geochemistry of the Mafic Rocks of the Ophiolitic fold and thrust belts of Southern Ethiopia: Constraints on the Tectonic Regime during the Neoproterozoic (900-700 Ma). Inf. Circ. Econ. Geol. Res. Inst., Univ. Witwatersrand, Johannesburg No. 349, 46pp.
27. Yibas B., Reimold W.U., and Anhaeusser C. R., Armstrong, R. and Phillips, D. July 2000. The Geology of the Precambrian of southern Ethiopia: II- U-Pb single zircon SHRIMP and laser argon dating of granitoids. Inf. Circ. Econ. Geol. Res. Inst., Univ. Witwatersrand, Johannesburg No. 345, 46pp.
28. Yibas, B., Reimold W.U. and Anhaeusser, C. R. July 2000. The geology of the Precambrian of southern Ethiopia: I - The tectonostratigraphic record. Inf. Circ. Econ. Geol. Res. Inst., Univ. Witwatersrand, Johannesburg No 344, 30pp.
29. Yibas, B. 2000. The Precambrian geology, tectonic evolution, and controls of gold mineralization in the Precambrian of southern Ethiopia. Ph.D. thesis, the University of the Witwatersrand, Johannesburg, South Africa.

  Theses & Dissertations:

1. B Yibas (2000). The Precambrian geology, tectonic evolution and controls of gold mineralization in southern Ethiopia. Ph.D. Thesis, Unpublished, University of the Witwatersrand, South Africa.
2. B Yibas (1988). The P-T path evolution of the apatite-magnetite mineralization in the Singhbhum shear zone (SSZ), MSc Thesis, Indian institute of Technology, Kharagpur, India.

 Professional membership and affiliation
1. SACANSP (South African Council for Natural scientific professions) 
2. WISA (Water Institute of Southern Africa)
3. Fellow of the GSSA (Geological Society of South Africa)