scholarly journals Chemical analysis of the Assale (Ethiopia) rock salt deposit

2006 ◽  
Vol 20 (2) ◽  
Author(s):  
Yigzaw Binega
Keyword(s):  
Chemical Analysis ◽  
Rock Salt ◽  
Salt Deposit

USING A GEORADAR TO IDENTIFY POTENTIAL SOURCES OF GAS RISKS AND TO RECOGNIZE THE GEOLOGICAL STRUCTURE OF THE ZECHSTEIN OLDEST HALITE ROCK SALT DEPOSIT (NA1) AT THE POLKOWICE-SIEROSZOWICE MINE

2017 ◽  
pp. 35-46
Author(s):  
Tomasz Chrul ◽  
Waldemar Pawlik ◽  
Joanna Wrzosek
Keyword(s):  
Rock Salt ◽  
Hydrogen Sulphide ◽  
Geological Structure ◽  
Upper Permian ◽  
Salt Deposit ◽  
Potential Sources ◽  
Salt Deposits

The Polkowice-Sieroszowice Mine the KGHM Polska Miedź S.A. uses the georadar method to recognize the geological structure of the Zechstein (Upper Permian) Oldest Halite rock salt deposits (Na1). The incentive to use the georadar was the occurrence of a gas risk in mining excavations. This method is ideal for locating anhydrite blocks, that are potential sites of hydrogen sulphide accumulation, and is helpful in determining the top and base of the salt deposits. In the tests, 100 MHz and 30 MHz antennas were used, which reached the ranges of 40 m and 60 m and resolutions of 0.25 m and 1.0 m, respectively. The profiling with use of a georadar was performed in research boreholes and along the floors of excavation drifts.

scholarly journals Isotope Dating of the Potash and Rock Salt Deposit at Bamnet Narong, NE-Thailand

2016 ◽  
Vol 06 (08) ◽  
pp. 875-894 ◽  
Author(s):  
Bent T. Hansen ◽  
Klaus Wemmer ◽  
Monique Eckhardt ◽  
Prinya Putthapiban ◽  
San Assavapatchara
Keyword(s):  
Rock Salt ◽  
Salt Deposit ◽  
Isotope Dating

scholarly journals Labile technogenic geological system of the flooded Shevchenko salt mine (Ukraine)

2018 ◽  
Vol 27 (2) ◽  
pp. 184-201
Author(s):  
L. Bosevska ◽  
Anirban Chowdhury
Keyword(s):  
Rock Salt ◽  
Salt Mine ◽  
Salt Deposit ◽  
Mine Area ◽  
Deformation Control ◽  
Deformation Processes ◽  
Analytical Processing ◽  
Destructive Processes ◽  
Salt Mining

This paper presents the analog ecological-mining-geological model of the labile technogenic geological system created at the Shevchenko flooded salt mine area within Artyomovsk rock salt deposit, which is the largest rock salt deposit in Europe. Description of all the system elements taking into account their interconnection and interaction are presented on the basis of the analytical processing and compilation of basic mining and geological data as well as the results of the long-term complex ecological-mining-geological monitoring.The paper describes both the geology of the mine area and the condition assessment of the mine including its shape, parameters, and layout. In addition, scientific interpretation of the mechanism of multi-act intrasystem destructive processes, which have been taking place in the last few decades are provided. Natural and technogenic factors determining the development of the created technogenic geological system (such as man-made karst and critical geomechanical deformations) are summarized and analysed. Predictive evaluation of the time-dependent deformation processes development has been carried out using theexisting methodology for assessing the geomechanical condition of the mined-out area of the salt massive. Correctness of the method for evaluation of stability of the unsupported workings system currently in use for the Artyomovsk rock salt deposit development has been confirmed. This work concerns the scientific problems of maintenance of the geo-ecological safety in the densely populated areas disturbed by underground salt mining. Hereinabove research results add information and analytical base to improve the deformation control system for ductile salt layers in various dynamic conditions of man-caused and natural loads. It is shown that such control is required for the aim of reduction of environmental risks and ensuring the safe operation of salt deposits, salt resources protection as well as infrastructure objects at the Earth’s surface nearby sites of modern salt mining activity.

scholarly journals SALT PROCESSING AT THE NAKHICHEVAN SALT DEPOSIT

2021 ◽  
Vol 07 (03) ◽  
pp. 35-40
Author(s):  
Jeyhun Shirinov Jeyhun Shirinov
Keyword(s):  
Rock Salt ◽  
New Technologies ◽  
Ventilation System ◽  
Physical And Mechanical Properties ◽  
Animal Husbandry ◽  
Geological Structure ◽  
Salt Deposit ◽  
New Production ◽  
North West ◽  
Field Development

One of the topical issues is the study of the formation conditions, geological structure, chemical composition and methods of development of the "Duzdag" salt deposit, formed in the Babek region of the Nakhchivan depression on the territory of Azerbaijan, in order to meet the salt needs of the population. The field is divided into two sections: southern - Nakhchivan and Sust, located 4.5 km north-west of it. The physical and mechanical properties of both sections are close to each other. Losses are allowed during field development due to the fact that salt layers alternate with clay layers. The constantly growing demand for salt has predetermined the need to develop more advanced and progressive production methods based on the mechanization of technological processes, the use of new technologies and world experience. Depending on the formation of salt deposits, different methods of salt extraction are used in world practice. The main method of production of table salt in the world should be its extraction in the form of a solution and evaporation in the sun. The share of each of these methods is about 35%, and about 30% of the salt is extracted from an underground mine. The productive layer of the Nakhchivan rock salt deposit is 93-95% halite and is of high quality. The excess content of clay minerals in the field forces them to be used only in animal husbandry. Frosts drilled in the Nakhchivan rock salt deposit can be widely used in the treatment of liver diseases. The mountain has 130 million tons of natural salt reserves that are effective in treating respiratory ailments. Since the ice is horizontal, patients adapt to the underground part. To open new production facilities and treatment facilities in Duzdag, it is necessary to continue the installation of equipment that meets modern standards, the introduction of mines into a fully automated, controlled technological regime, equipped with a modern ventilation system. Keywords: Nakhchivan salt deposit, processing methods, salt beds.

scholarly journals Improving the Stability of the Directional Room G 31-33, Horizon 210 - East, Ocnele Mari-Coceneṣti Salt Mine, By Reinforcement with Anchors and Shotcrete

Mining Revue ◽  
2021 ◽  
Vol 27 (4) ◽  
pp. 19-27
Author(s):  
Dacian-Paul Marian ◽  
Ilie Onica
Keyword(s):  
Finite Element ◽  
Numerical Modelling ◽  
Rock Salt ◽  
Systematic Measurement ◽  
Salt Mine ◽  
Salt Deposit ◽  
3D Finite Element ◽  
G 31 ◽  
The Stability ◽  
Horizontal Displacements

Abstract The rock salt deposit from Ocnele Mari - Coceneşti was mined by the method with rooms and small square pillars, at the levels + 226m and + 210m. Although the saline is not deep, certain instability phenomena (cracks, exfoliations) have occurred in the resistance structures (pillars, ceilings), especially in the G31-33 directional room, horizon 210E. These instability phenomena were also highlighted following the 3D finite element numerical modelling. In order to prevent the degradation of the mining excavations and the resistance structures, the affected surfaces were supported with anchors and reinforced shotcrete. The ceiling of the consolidated section of the G31-33 directional room, horizon 210E is monitored by the systematic measurement, on topographic landmarks mounted on the ceiling, of the vertical and horizontal displacements.

scholarly journals New leaching method on the rock salt deposit 'Tetima' near Tuzla

2015 ◽  
pp. 69-96
Author(s):  
Amir Susic ◽  
Adnan Hodzic ◽  
Sanel Nuhanovic ◽  
Jovo Miljanovc
Keyword(s):  
Rock Salt ◽  
Salt Deposit

scholarly journals PORE PRESSURE AND FRACTURING PRESSURE INFLUENCE AT BOREHOLES CONSTRUCTION ON THE ROCK SALT DEPOSIT ''TETIMA'' TUZLA

2015 ◽  
Vol 1 (12) ◽  
Author(s):  
Sanel Nuhanović ◽  
Adnan Hodžić ◽  
Almir Šabović
Keyword(s):  
Pore Pressure ◽  
Rock Salt ◽  
Graphical Method ◽  
Salt Water ◽  
Drilling Fluid ◽  
Fluid Loss ◽  
Salt Deposit ◽  
Pore Pressures

In the rock salt deposit "Tetima" by analysis of situation and pore (layers) pressures and fracturing pressures development it has been proved that the values of pore and fracturing pressures are quite low (in the part of deposit which is currently exploited) and on the border of use salt water such as fluid for canal rinse in some drilling intervals. That especially relates to the'' weak'' breccia layer, stationed just above rock salt series, which is rated as most likely zone of drilling fluid loss and hermeticity loss of all constructed boreholes in that part of deposit. Calculated values of pore pressures, fracturing pressures and their gradients indicate on need for correction of existing boreholes construction on the rock salt deposit ''Tetima''. Analysis results of six constructed boreholes are presented in this paper, by analytical and graphical method.

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