21.09
2019

RESULTS OF THE RADIOMETRIC RESEARCH IN THE AREA OF OBUKHOVO-SESLAV URANE ORE

5/2019

Summary

The Bukhovo-Seslav uranium ore field is located in the central part of the Balkan Mountains. The first uranium minerals (otunite, torurnite) have been known since 1925. They have been identified by geologists at Sofia University via samples supplied by Bukhov resident Stoinev, taken from a quarry located on the southeast slope of Goten Peak. Until 1940, the exploration and extraction of uranium was carried out by German companies. Systematic prospecting and extraction works during the period 1946-1958 were carried out by a mixed Soviet-Bulgarian Mining Enterprise (SBGS), and after 1958 to 1992 by the State Fund for Rare Metals. Significant volumes of medium- and large-scale geological and geophysical mapping, drilling and mining exploration have been conducted. Detailed mineralogical-petrographic and chemical-technological investigations have been carried out. In the 1970s and 1980s, particular attention was paid to the material composition of uranium ores. Industry-proven technologies have been developed to extract a number of associated elements (Pb, Zn, Cu, Au, Th, etc.) from complex ore deposits.

Keywords: radioactivity, isotope elements, radioactive decay, radioactive family – α-, β-, γ – radiation

Prof. eng. Ivan Bedrinov has fully connected his work experience and scientific interests with the problems of radiogeological science and practice in Bulgaria. He began work in 1951 as a geophysicist. He continues  as a geological engineer and head of prospecting and exploration units in the Central Rhodope ore area. He is also the leader of a number of thematic research groups within the Rare Metals system. The main topic of his research is uranium-containing and uranium-accompanying colored, earth mineralization and minerals in the Central Rhodope ore region. Most of the authors’ and co-authors’ works, in the form of annual and stage reports, have been published in the Rare Metals GeoFund. Over one hundred articles and reports on original scientific topics have been published in Bulgarian and foreign journals. In 2007, he was elected a full member of the International Academy of Environmental Sciences and Safety in Russia.

21.09
2019

PRECIOUS AND DECORATIVE MINERALS IN THE RHODOPES MOUNTAINS

Isuue 5/2019

Summary

The article deals with the basic construction of the Rhodope Rock Complex, together with the basic mineralogical and geochemical processes. The author focuses mainly on the decorative and colored minerals in the different regions of the mountain. The article describes in  detail the precious minerals aquamarine, emerald, heliodor, along with  epidotes, agates, jasper. Mentioned are the major lead-zinc ore minerals – galenith, sphalerite, chalcopyrite, as well as widespread calcite.

21.09
2019

ANALYSIS OF THE GEOMECHANICAL CONDITION OF ISOLATED INTER-CHAMBER SUPPORTING CELLS

Issue 5, 2019

Summary

Methods for measuring inter-chamber columns in development systems in mineral deposits are based primarily on extensive experience gained over the years in mining industry. As a result, the following two phenomena are observed: a deficiency in carrying capacity is detected after its entry into service, or the whole is resized.

The paper proposes practical  as well as laboratory evaluation methods aimed at characterizing and defining the geomechanical state of the inter-chamber cells in the course of their work. A practically new classification method for quantification has been presented and tested, enabling the reaction of the inter-chamber cells and the subsequent state of the open spaces (chambers) around it to be predicted.

Keywords: inter-chamber cells, voltages, strength, measurements

13.09
2019

THE FIRST NEW MINE IN BULGARIA FOR THE LAST 40 YEARS WAS LAUNCHED BY DUNDEE PRECIOUS METALS

On August 23, 2019, the Ada Tepe mine was officially opened in the city of Krumovgrad. The ceremony was attended by National Assembly Speaker Tsveta Karayancheva, Prime Minister Boyko Borisov, Deputy Prime Minister Mariana Nikolova, Finance Minister Vladislav Goranov, Mayor of the City of Sebihan Mehmed, President of Euromin Mark Rahovidas, representatives of Bulgarian enterprises and representatives of Bulgarian enterprises guests. In addition to the Vice President of Dundee Precious Metals, Dr. Ilia Garkov, who hosted the event, it was also attended by President and CEO Rick House and Chairman of the Board of Directors Jonathan Goodman. At the beginning of the  ceremony, guests were able to see short clips telling the story of  Ada Tepe and the people working at the mine and the processing plant.

 

 

 

 

 

 

 

 

More information about the event can be found in issue no. 8/2019 of Mining and Geology magazine.

 

21.08
2019

MINING COMMUNITY IN BULGARIA CELEBRATED ITS HOLIDAY

Today, on August 18, the mining community in Bulgaria celebrated its professional holiday – the Miner’s Day. The official celebration took place at Sofia Hotel Balkan, where traditionally hundreds of industry representatives gathered. Special guests of the celebration were the Minister of Energy Mrs. Temenuzhka Petkova, who is also the patron of the holiday, the Vice-President of the European Association of Mining Industries Mr. Roman Stiftner, representatives of the institutions in the sector, national and employers’ organizations, trade unions, regional governors and mayors from the country and academia.

In his overview report, the chairman of the Scientific and Technical Union for Mining, Geology and Metallurgy, Dr. Eng. Kremena Delyanova summarized the state of the industry in 2018, as well as the major events and initiatives in the sector.

Our country ranks third in copper production, fourth in gold and fifth in lignite production in Europe. The main raw materials extracted in Bulgaria are lignite, lead-zinc, copper and polymetallic ores, gypsum, limestone, bentonite, kaolin, quartz sands, refractory clays and marble.The total extraction of minerals for 2018 is 108.4 million tons, and the value of the production is close to BGN 3 billion. The industry reports nearly 2.5 times higher productivity than the industry average in the country. Directly employed in the industry are  22,000, and through related industries and services their number reaches up to 120,000. Salaries in the sector remain among the highest and in 2018 marks an increase of 10%, with the average annual salary reaching BGN 1700.The development of this industry is a priority of our government. Businesses and institutions go hand in hand – this is a guarantee for the success of the sector”, Energy Minister Ms Temenuzhka Petkova said in her welcoming  speech. The updated National Strategy for the Mineral Resources Industry gives a vision for development and guarantees the interests of investors”, Minister Petkova argued.

In her speech, she also stressed the development of coal mining, which is one of the major challenges facing the Bulgarian energy sector.The Deputy Chairman of  Euromin, Mr. Roman Stiftner, highlighted Bulgaria’s contribution to the European extractive industries during the Bulgarian Presidency of the Council of Europe. “I would like to thank Bulgaria and the Bulgarian Chamber of Mining and Geology for the founding rules for the sector, with which they have been able to contribute to the European industry.” He also drew attention to the importance of convincing the new European Parliament team regarding  the great importance of the mineral – raw industry. “We need to make politicians understand that we cannot survive one day without this industry”, Mr Schiftner added. During the celebration, the Bulgarian Mining Chamber honored the top mining companies for 2018 in the categories:  best results, care for nature, safety and health, innovation and corporate social responsibility.

Personal awards were presented to people who have contributed to the industry – namely  the Journalist Award and the best student at the University of Mining and Geology “St. Ivan Rilski.

The Bulgarian Mining Chamber Annual Award 2018 for the highest annual results in the mineral industry:

  • Gorubso – Madan AD with CEO Sergei Atanasov for a growth in production in 2018 by 5.8% compared to 2017.
  • Innovation Award
  • Elatsite – Med AD with Executive Director Eng. Dragomir Draganov for the project “Implementation of modern technology for increasing the stability of Benkovski-2 tailings dam”
  • Safety and Health Award –  Zero Accidents in 2018, certified by a document from the National Social Security Institute.
  • Assarel Medet AD with Executive Director Eng. Delcho Nikolov
  • Assarel-Repair Ltd. with its manager eng. Ivan Ignatov
  • Imeris Minerals Bulgaria AD with its Executive Director Ms. Juliana Mareva
  • Care for the nature Award – for no breaches and sanctions and for full compliance with environmental standards in 2018, certified by a document from RIEW
  • Assarel Medet AD with Executive Director Eng. Delcho Nikolov
  • Награда „Грижа за природата“ – за липса на нарушения и санкции във връзка със спазване на екологичните норми през 2018 г., удостоверено с документ от РИОСВ
  • “Асарел – Медет” АД с изпълнителен директор инж. Делчо Николов.

Award for socially responsible campaign of a company in the mineral industry

  • Dundee Precious Metals Krumovgrad EAD with Executive Director Dr. Ilia Garkov for the Micro, Small and Medium Enterprises Assistance Fund Project

Personal Awards for Contribution to the Mineral Industry – Anniversaries of Leaders of Long-standing and Active Members of the Mining Association:

  • Prof. DSc Eng. Tsolo Vutov (Geotechmin Ltd.) – 70 years of age
  • Delcho Nikolov (Asarel-Medet JSC) – 60 years of ag
  • Dr. Nikolay Kolev (Ognianovo-K AD) – 60 years of age
  • Prof. Dr. Pavel Pavlov (Deputy Rector of Mining University “St. Ivan Rilski”) – 50 years years of age
  • Prof. Dr. Stefcho Stoynev – Manager of Geotechnics ABS Ltd.) – 60 years of age
  • Ivan Ignatov (Assarel – Repair Ltd.) –  70 years of age
  • Mitko Mladenov (Rudmetal AD) – 60 years of age
  1. Awards for contribution to the Bulgarian mineral resources industry – diploma for the anniversary of a long-standing and active member of the Mining Association:
  • 44 years since the creation of IOC Elatsite and 20 years since the accession of Elatsite-Med AD to the GEOTECHMIN Group60 years Lucky Enrichment Factory  – Lucky Invest AD with CEO Atanas Marinsky

Award for objective and consistent reflection of the industry:

  • Mrs. Mariana Boykova – 24 Chasa daily

Award for contribution to the mineral industry:

  • Metodi  Savov – a vetera

The Best Student Award “St. Ivan Rilski”:

  • Bozhil Demerdzhiev – majoring Gas Fuel and Purification Equipment and Technologies, final assessment 5,61 – diploma and money award from The Association of Bulgarian Miners.
  • Ivanka Stoyanova – Majoring in Mine surveyor and Geodesy, final assessment 5.60 – cash prize  by  “Minstroy Holding” AD
  • Bozhurka Georgieva – majoring Geophysics, final assessment 5.83 – award by  Asarel Foundation, established in the name of Prof. Dr. Luchezar Tsotsorkov

Prizes of the Scientific and Technical Union for Mining, Geology and Metallurgy awarded during the National Miner Day Celebration:

  1. Award Honorable Miner – Eng. Nedelcho Bonev
  2. Award Honorable Geologist – Prof. Dr. Ruslan Kostov and Assoc. Prof. Dr. Stefan Boyadzhiev.

 

16.08
2019

HAPPY MINER’S DAY!

Every year, on the day of the Assumption of St. Ivan Rilski, August 18, we celebrate the  Miners Day.

Since 1996, the Bulgarian Chamber of Mining and Geology along with its partners the Scientific and Technical Union of Mining, Geology and Metallurgy and the Mining Federations at CITUB and Podkrepa labor unions have been celebrating the professional holiday of all those working in the mineral – raw industry. The celebration brings together generations of mining professionals, geologists, business executives, friends and partners of the Bulgarian Mining-Geology Union. The annual awards of the Chamber are also presented during the solemn assembly, as well as anniversaries of persons for contributing to the industry. The Minister of Energy is the patron of the holiday. Until the end of August, the Miners Day is celebrated with events in the developed mining regions as well.

This year Elatsite-Med AD, Assarel-Medet AD, Dundee Precious Metals Chelopech, Dundee Precious Metals Krumovgrad, Kaolin EAD, Gorubso Madan, Gorubso Zlatograd, Mini Maritza- East, Lucky Invest will celebrate the Day of the Miner. Hundreds of employees of the companies, their families, veterans, thousands of residents of the respective regions and many guests will participate in the celebrations. Along with the reporting of professional results and honorable awards, there will also be a rich entertainment program. Congratulatory address

are published in no. 7/19 of Mining and Geology magazine and can be found HERE.

15.08
2019

MINING AND GEOLOGY MAGAZINE, ISUUE 7/2019 Г. ONLINE

We would like to present you the CORPORATE SECTION, issue 7/2019 of Mining and Geology magazine.You can find the full version (PDF) HERE

You can find summaries of the scientific articles on the website in the SCIENCE SECTION.

23.07
2019

MINING AND GEOLOGY MAGAZINE, ISUUE 6/2019 Г. ONLINE

We would like to present you the CORPORATE SECTION, issue 6/2019 of Mining and Geology magazine.You can find the full version (PDF) HERE

You can find summaries of the scientific articles on the website in the SCIENCE SECTION.

22.07
2019

ENG. ANDON ANDONOV IS THE CHAIRMAN OF THE BOARD OF DIRECTORS OF THE BULGARIAN ENERGY HOLDING EAD

“I take the position as a new responsibility and as a new opportunity for coal energy. Sustainable Energy and Maritza East Complex will be the motto from now on. I hope I will be able to protect the Maritza East complex because our work is dependent on the operation of the plants”, comments Andonov.

Energy Minister Temenuzhka Petkova performed the changes of the leadership of the Bulgarian Energy Holding EAD with a protocol decision appointing Jacqueline Cohen, Zhivko Dinchev – executive director of TPP Maritza-East2 EAD and Andon Andonov to be members of the Board of Director for a period of three years. The Energy Minister’s decision will come into force after being entered in the Commercial Register.

Minister Petkova thanked the previous composition of the Board of Directors of the holding for their professionalism and the efforts made to stabilize the energy companies of the BEH EAD Group.

The newly elected Board of Directors has appointed Jacqueline Cohen as Executive Director of Bulgarian Energy Holding EAD.

 

 

17.07
2019

XV INTERNATIONAL CONFERENCE ON OPEN AND DEEP SEA MINING

In the period 3 – 7 June 2019 in St. St. Constantine and Elena resort, Varna was held the 15th International Conference on Open and Deep Sea Mining at the Astor Garden Hotel.

More information about the event can be found in issue 6/19 of Mining and Geology magazine.