SIT4ME project: Up-scaling seismic methods for mineral exploration in the Zinkgruvan mining area, Sweden

2020 ◽  
Author(s):  
Alba Gil ◽  
Alireza Malehmir ◽  
Stefan Buske ◽  
Juan Alcalde ◽  
Puy Ayarza ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Raw Materials ◽  
Imaging Techniques ◽  
Mineral Exploration ◽  
Mineral Resources ◽  
Modern Society ◽  
Careful Analysis ◽  
Mining Area ◽  
Massive Sulphide ◽  
Up Scaling

<p>Mineral resources are used in large quantities than ever before because they are fundamental to our modern society. To this front and facing an up-scaling challenge, the EIT Raw-Materials funded project SIT4ME (Seismic Imaging Techniques for Mineral Exploration) was launched involving several European institutions. As part of the project, a dense multi-method seismic dataset was acquired in the Zinkgruvan mining area at the Bergslagen mineral district of Sweden, which hosts one of the largest volcanic-hosted massive sulphide (VMS) deposits in the country.</p><p>In November 2018, a dense multi-method seismic dataset was acquired in the Zinkgruvan mining area, in a joint collaborative approach among Swedish, Spanish and German partners. A combination of sparse 3D grid and dense 2D profiles in an area of approximately 6 km<sup>2 </sup>was acquired using a 32t seismic vibrator (10-150 Hz) of TU Bergakademie Freiberg, enabling reasonable pseudo-3D sub-surface illumination. For the data acquisition, a total of approximately 1300 receiver positions (10-20 m apart), using different recorders, and 950 source positions were surveyed. All receivers were active during the data acquisition allowing a combination of 2D and semi-3D data to be obtained for various imaging and comparative studies. The main objective of the study, apart from its commercial-realization approach, was also to provide information useful for deep-targeting and structural imaging in this complex geological setting. The main massive-sulphide bearing horizon, Zinkgruvan formation, is strongly reflective as correlated with the existing boreholes in the mine. Careful analysis of the seismic sections suggests a dominant northeast-dipping structure, consistent with the general plunge of the main Zinkgruvan fold that has been suggested in the area.</p><p>Acknowledgements: EIT-RawMaterials is gratefully thanked for funding this up-scaling project 17024.</p>

scholarly journals SIT4ME: seismic imaging of mineral-hosting structures in Sotiel-Coronada (Spain)

2020 ◽  
Author(s):  
Yesenia Martínez ◽  
Juan Alcalde ◽  
David Martí ◽  
Puy Ayarza ◽  
Mario Ruiz ◽  
...  
Keyword(s):  
Seismic Imaging ◽  
Raw Materials ◽  
Imaging Techniques ◽  
Mineral Exploration ◽  
P Wave ◽  
Target Area ◽  
Source Imaging ◽  
The North ◽  
Imaging Results ◽  
East West

<p>In order to tackle the ever-increasing demand of raw materials, the European Institute of Technology (EIT) promotes research and innovation solutions for safe and sustainable mineral exploration through its Raw Materials Programme. The SIT4ME project (“Seismic Imaging Techniques for Mineral Exploration”) has been funded as part of this program to develop efficient techniques in seismic acquisition and imaging methods for mineral exploration in crystalline environments. Within SIT4ME, a multidisciplinary data acquisition experiment (i.e. 3D-3C active and passive source seismic datasets) took place in November 2009 in Sotiel-Coronada (Iberian Pyrite Belt, SW Spain). The aim of this experiment was to image a 300-500 m depth pyrite-rich massive sulfide orebody interbedded with felsic volcanic rocks and shales. The seismic dataset involves the recording of 875 vibration points in 653 seismic receivers, distributed in a 3D mesh around the target and six 2D crooked lines. Conventional processing workflow (such as static corrections, surface-consistent deconvolution, amplitude equalization, frequency filtering, and velocity analysis) was combined with more advance methods (e.g. ground roll attenuation or post-stack coherency filtering) to obtain robust images of the subsurface of the target area. The processing workflow has been applied to four 2D seismic sections, one in the North-South and three in the East-West directions, distributed across the study area. The preliminary imaging results show coherent reflective packages down to two seconds two-way traveltime (TWT). The North-South line contains a north-dipping ~400 m long highly reflective zone in the center at 130 ms TWT. The east-west profiles show a slightly folded structure (antiform and synform) which is evident down to 0.25 s TWT. Towards the north, the seismic lines become parallel to subsurface structures and therefore the track of these structures is lost. Current work involves the incorporation of well-log data to improve the quality and resolution of the interpretations. The next processing steps will involve pre-stack depth migration, P-wave travel-time tomography and a combined analysis of controlled source imaging and ambient noise interferometry data.</p><p>The SIT4ME project has been funded by EIT Raw Materials (17024).</p>

scholarly journals To what extent is Denmark vulnerable to mineral supply shortage?

1969 ◽  
Vol 31 ◽  
pp. 95-98
Author(s):  
Per Kalvig ◽  
Rune J. Clausen ◽  
Niels Fold ◽  
Karen Hanghøj
Keyword(s):  
Raw Materials ◽  
Technological Development ◽  
Mineral Resources ◽  
Modern Society ◽  
Building Blocks ◽  
Political Agenda ◽  
Mineral Raw Materials ◽  
Key Factor ◽  
Increasing Demand ◽  
Culture And Development

Mineral resources are building blocks of modern society and essential for progress and prosperity. Mankind has always depended on access to mineral raw materials, which have been a key factor for wealth, culture and development. Modern societies are characterised by a rapidly increasing demand for specialised mineral raw materials, determined by their stage of technological development, the number of consumers, and their standard of living. Generally, the availability of mineral raw materials has not, until recently, been considered an issue by the average consumer or by companies in the downstream end of the value chains, and mineral resources have not been part of the political agenda. In this context China’s control over rare-earth elements (REE) has been an eye opener to both industry and politicians worldwide, and has subsequently led to discussions about the possible exhaustion of finite resources and potential threats to the availability of raw materials caused by geopolitical tension and market restrictions.

scholarly journals Deep Mineral Exploration of the Jinchuan Cu–Ni Sulfide Deposit Based on Aeromagnetic, Gravity, and CSAMT Methods

Minerals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 168 ◽  
Author(s):  
Jianmin Zhang ◽  
Zhaofa Zeng ◽  
Xueyu Zhao ◽  
Jing Li ◽  
Yue Zhou ◽  
...  
Keyword(s):  
Mineral Exploration ◽  
Effective Means ◽  
Physical Property ◽  
Mineral Resources ◽  
Mining Area ◽  
Sulfide Deposit ◽  
Inversion Method ◽  
Property Data ◽  
Physical Property Data ◽  
Continuous Demand

The exploration of deep mineral resources is an important prerequisite for meeting the continuous demand of resources. The geophysical method is one of the most effective means of exploring the deep mineral resources with a large depth and a high resolution. Based on the study of the geological background, petrophysical properties, and aeromagnetic anomaly characteristics of the Jinchuan Cu–Ni sulfide deposit, which is famous throughout the world, this paper uses the widely used gravity, aeromagnetic, and CSAMT (controlled source audio-frequency magnetotellurics) methods with a complementary resolution to reveal the favorable prospecting position. In order to obtain better inversion results, the SL0 norm tight support focusing regularization inversion method is introduced to process the section gravity and aeromagnetic data of the mining area. By combining the results with CSAMT, it is found that the medium-low resistivity, high density, and the high magnetic anomaly areas near the structural belt can nicely correspond with the known ore-bearing rock masses in the mining area. At the same time, according to the geophysical exploration model and geological and physical property data, four favorable ore-forming prospect areas are delineated in the deep part of the known mining area.

TRENDS IN MINERAL COMPLEX DEVELOPMENT AT THE TURN OF THE CENTUARY

2018 ◽  
pp. 3-15
Author(s):  
A. L. Dergachev ◽  
V. I. Starostin
Keyword(s):  
World Economy ◽  
Raw Materials ◽  
Supply And Demand ◽  
Mineral Resources ◽  
Strategy Of Development ◽  
Mineral Complex ◽  
Complex Development ◽  
Mineral Commodities ◽  
Working Out ◽  
Mineral Base

Important trends in development of world's mineral complex at the beginning of the 21st century are increase of supply and demand for mineral materials differentiated for various metals and nonmetallic mineral resources, regions and countries; concentration of production of mineral commodities in small number of countries; falling availability of economic reserves of raw materials for world economy even at current level of material extraction. The tendencies should be taken into account when working out strategy of development of Russian mineral base.

scholarly journals Mineralogy and Geochemistry of Ultramafic Rocks from Rachoni Magnesite Mine, Gerakini (Chalkidiki, Northern Greece)

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 934
Author(s):  
Evangelos Tzamos ◽  
Micol Bussolesi ◽  
Giovanni Grieco ◽  
Pietro Marescotti ◽  
Laura Crispini ◽  
...  
Keyword(s):  
Raw Materials ◽  
Mining Area ◽  
Ultramafic Rocks ◽  
Northern Greece ◽  
Icp Ms ◽  
Time In Literature ◽  
History Of ◽  
First Time ◽  
The Eu

The importance of magnesite for the EU economy and industry is very high, making the understanding of their genesis for the exploration for new deposits a priority for the raw materials scientific community. In this direction, the study of the magnesite-hosting ultramafic rocks can be proved very useful. For the present study, ultramafic rock samples were collected from the magnesite ore-hosting ophiolite of the Gerakini mining area (Chalkidiki, Greece) to investigate the consecutive alteration events of the rocks which led to the metallogenesis of the significant magnesite ores of the area. All samples were subjected to a series of analytical methods for the determination of their mineralogical and geochemical characteristics: optical microscopy, XRD, SEM, EMPA, ICP–MS/OES and CIPW normalization. The results of these analyses revealed that the ultramafic rocks of the area have not only all been subjected to serpentinization, but these rocks have also undergone carbonation, silification and clay alteration. The latter events are attributed to the circulation of CO2-rich fluids responsible for the formation of the magnesite ores and locally, the further alteration of the serpentinites into listvenites. The current mineralogy of these rocks was found to be linked to one or more alteration event that took place, thus a significant contribution to the metallo- and petrogenetic history of the Gerakini ophiolite has been made. Furthermore, for the first time in literature, Fe inclusions in olivines from Greece were reported.

scholarly journals Quantitative and Qualitative Research on the Waste from the Mining of Rock Raw Materials in Lower Silesia

Minerals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 375 ◽  
Author(s):  
Urszula Kaźmierczak ◽  
Jan Blachowski ◽  
Justyna Górniak-Zimroz ◽  
Herbert Wirth
Keyword(s):  
Raw Materials ◽  
Mineral Resources ◽  
Geological Structure ◽  
Mining Activity ◽  
Road Engineering ◽  
Quantitative And Qualitative Research ◽  
Sw Poland ◽  
Natural Aggregates ◽  
Graphical Presentation ◽  
Lower Silesia

The Lower Silesia area in SW Poland is characterized by a geological structure that is conducive to mining activity. The exploitation of rock raw materials plays an important role in this sector of the economy. By the end of 2017, there were in total approximately 400 current concessions for the exploitation of rock raw materials in the analysed area (Polish Geological Institute, MIDAS database—Management and Protection System of Polish Mineral Resources). The conducted mining activity results in waste, which in the greatest amount occurs in the process of obtaining crushed road and construction aggregates, natural aggregates, carbonate raw materials for the cement and lime industry, as well as stone elements for construction and road engineering. At the end of 2016, the mining plants accumulated 26,569,600 Mg of waste. As part of the European Regions Toward Circular Economy (CircE) project, research was conducted on the volume and composition of the mining waste of rock raw materials in the years 2010–2016 within Lower Silesia. This research used the methods of statistical, descriptive and spatial analysis to identify mining plants with the highest potential for using their wastes. In the course of this study, 6 mining plants with the highest potential of using their waste for industrial production purposes were selected. In order to objectively select these plants, the methodology of qualitative multi-criteria analysis was developed, and 7 criteria were selected for assessing the economic potential of using waste from the mining of rock raw materials. An additional result of this research is a database and graphical presentation of changes in the spatial distribution of generated waste in the Lower Silesia region in the years ranging from 2010 to 2016.

Labor Acquisition and Social Conflict on the Colombian Frontier, 1850–1936

1984 ◽  
Vol 16 (1) ◽  
pp. 27-49 ◽  
Author(s):  
Catherine LeGrand
Keyword(s):  
Nineteenth Century ◽  
Latin America ◽  
Agricultural Production ◽  
World Economy ◽  
Raw Materials ◽  
Mineral Resources ◽  
Significant Shift ◽  
Foreign Markets ◽  
Latin Americans ◽  
The World

Exporters of raw materials under Iberian rule, the nations of Latin America continued to perform a similar role in the world economy after Independence. In the nineteenth century, however, a significant shift occurred in the kind of materials exported. Whereas in colonial times the great wealth of Latin America lay in her mineral resources, particularly silver and gold, aster 1850 agricultural production for foreign markets took on larger importance. The export of foodstuffs was not a new phenomenon, but in the nineteenth century the growth in consumer demand in the industrializing nations and the developing revolution in. transport much enhanced the incentives for Latin Americans who would produce coffee, wheat, cattle, or bananas for overseas markets.

scholarly journals Use of Industrial Waste for the Optimization of Ceramic Construction Materials

2020 ◽  
Author(s):  
Carlos Galhano ◽  
Pedro Lamas ◽  
Diogo Seixas
Keyword(s):  
Industrial Waste ◽  
Mechanical Characteristics ◽  
Raw Materials ◽  
Bottom Ash ◽  
Construction Materials ◽  
Fine Fraction ◽  
Mineral Resources ◽  
Ceramic Materials ◽  
High Production Rate ◽  
Marble Powder

The massive growth of the ceramic industry and the consequent demand for construction materials worldwide has motivated the search for alternative solutions aimed at reducing the use of mineral / natural resources as the main source of raw materials. One of the strategies frequently adopted by the scientific community is the reuse of industrial waste. It is beneficial not only to reduce the overexploitation of mineral resources but also to reduce the environmental, economic and social impacts resulting from their incorrect disposal/treatment and consequent deposition on land unsuitable or that purpose. Duetoconsiderationssuchasphysico-mechanical characteristics and the high production rate, two different types of industrial waste were selected for this work, ashes resulting from the burning of coal in thermoelectric power plant, commonly known as bottom ash (B), and the Marble Powder (MP). It was intended to test the technological feasibility of the manufacture of ceramic materials produced from clay mixtures containing these two residues. For this purpose, the fine fraction(<63μm)obtained from the sieving of the marbleresidue(MR)and slag(Bf)was used,aswellasacoarsergrainslagfractionrangingfrom63-125μm(Bg). The resulting test samples were subjected to a firing of 950 °C under an oxidizing atmosphere, following a primary drying process. Faced with the standard values, the new ceramic materials obtained from MP have seen their mechanical and porous characteristics decrease and increase, respectively. Atthesametime,althoughtheadditionofBinno way influenced the mechanical characteristics,a significant improvement the porous characteristic was observed. The incorporation of these residues produced a color very close to the original sample material. Keywords: industrial waste, ceramic, construction materials, bottom ash, Marble Powder

scholarly journals PERSPECTIVES FOR DEVELOPMENT OF TECHNICAL BUILDING STONE- LIMESTONE IN THE REPUBLIC SRPSKA

2015 ◽  
Vol 1 (12) ◽  
Author(s):  
Slobodan Majstorović ◽  
Vladimir Malbašić ◽  
Miodrag Čelebić
Keyword(s):  
Raw Materials ◽  
Production Capacity ◽  
Mineral Resources ◽  
Building Stone ◽  
Raw Material ◽  
Material Base ◽  
Standard Quality ◽  
The Republic ◽  
Fragmentation Of Production ◽  
Republika Srpska

Curent situation of raw material base and study of limestone like construction stone deposits in the Republic of Serbian were relatively poorly considered during the last decades, and the main problems are the following: low production capacity fragmentation of production, needs for raw materials homogenization and delivering of standard quality, undeveloped market, the recession of the domestic economy and the economies in the region, the relatively low level of exploration by many deposits, especially lack of knowledge of the occurrence legality for certain types and quality of raw materials and lack of complete quality indicators for raw material, which sometimes causes the utilization of only the highest quality deposit parts.This paper provides an overview of active quarries in the Republic Srpska with exploitation of limestone like technical building stone and present an attempt to determine the basic quantitative and qualitative characteristics of the raw material and the current working conditions at these quarries. The purpose of such a review would be in an effort to create a clearer picture about production, market, social and other aspects of the limestone exploitation in the Republika Srpska and the realistic possibilities of maintaining and developing of these mineral resources utilization, which can certainlybe interesting for the development of many other industries in the Republic Srpska.

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