Geologia
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ISSN 0138-0974
e-ISSN: 2353-0782
Issue Date
2009
Volume
T. 35
Number
Nr 3
Description
Journal Volume
Geologia
T. 35 (2009)
Projects
Pages
Articles
Geochemia bromu i wykształcenie utworów solnych cechsztynu w wybranych otworach wiertniczych w wysadzie solnym Góra koło Inowrocławia
(Wydawnictwa AGH, 2009) Czapowski, Grzegorz; Tomassi-Morawiec, Hanna; Tadych, Joanna; Grzybowski, Łukasz; Sztyrak, Tadeusz
Detailed macroscopic profiling of salt cores from selected wells drilled in the Góra salt diapir (central Poland), supported with bromine content analyses, enabled to define and characterize the succession of Zechstein (Upper Permian) lithostratigraphic units in each well. The study results allowed also to define better the type of tectonic macrodeformations (as folds) within studied salt series, being so common in any salt diapir, but difficult to observe in well sections.
Zaciskanie konturu typowej komory prostopadłościennej w Kopalni Soli Kłodawa
(Wydawnictwa AGH, 2009) Marcola-Sadowska, Jolanta; Bieniasz, Józef; Wojnar, Waldemar
For over 30 years Chemkop has researched convergence survey in Polish salt mines. In 1998 in one of typical salt chamber in Kłodawa installed unique measuring points system for convergence observation of vertical cross-section on 630 m depth. For 11 years measured multiple horizontal, vertical and oblique bases and levelled bench-marks. This measurements allowed determine relative velocity of area convergence about 1 per mille annually.
Wybrane problemy projektowania udostępnienia odległych pól eksploatacyjnych na przykładzie Kopalni Soli Kłodawa
(Wydawnictwa AGH, 2009) Andrusikiewicz, Wacław; Obracaj, Dariusz
The Kłodawa Salt Mine is the only active one which exploits salt with the dry method. The mine is located just upon the salt dome, that covers only a part of the dome - that is the belt ca. 8 × 2 km. The mining production takes place within five panels in the depth interval between 300-750 m. At the stage of designing of the access excavations in the field 5 at the 750 level there was a need to solve the ventilation problem. The central shafts used as inlet and exhausting peripheral shaft have to assure a proper air exchange rate within the all galleries and chambers. Thanks to the multi-variant analysis carried out, the optimum solution could be suggested. The following problem to be solved is a muck haulage. As in the beginning the volume of the muck from access works should not be a problem, as with elongation of haulage distance the problem is getting increase, reaching the critical point with starting exploitation works. The rail transportation used underground may appeared to be not sufficient and may be it will be necessary applying another alternative solution. The problems presented in the paper are only a fragment of the greater whole, which should be faced at the stage of designing process.
Pierwotny zasięg występowania najstarszej soli kamiennej (Na1) w południowej części monokliny przedsudeckiej (SW Polska)
(Wydawnictwa AGH, 2009) Markiewicz, Andrzej; Becker, Roman
The recently documented southern limit of the Oldest Halite (Na1) unit in SW Poland runs »longitudinally«, generally along the line between Kożuchów and Ostrzeszów. The results of hydrochemical analyses and petrographic-mineralogical investigations indicate that there was a process of »young« impregnation of the Lower Anhydrite (A1d) and Zechstein Limestone (Ca1) with halite. The process led to the formation of the so-called dispersion salt aureole within the salt-free zone of the Fore-Sudetic Monocline. Moreover, the breccia horizon BrA1, observed to the south of the Na1 unit limit, is associated with a contact of the Upper (A1g) and Lower (A1d) Anhydrites (so-called a tectonic weld). These phenomena developed mainly during the processes of intrastratal deformation, upward squeezing and dissolution of salts at time of Laramide tectonic movements. The above considerations imply that the Na1 salt unit occurred originally also in the southern-western part of the Fore-Sudetic Monocline.
Wstępne wyniki badań inkluzji fluidalnych z najstarszej soli kamiennej Na1 w rejonie Głogowa (SW Polska)
(Wydawnictwa AGH, 2009) Toboła, Tomasz; Markiewicz, Andrzej
New bore-hole SS-15 drilled in NW part of »Sieroszowice« deposit provided precious information about oldest salt (Na1) in that region. Observations of the core revealed that two main types of salt may by distinguished. The white or light grey, coarse-grained and crystal-grained salts with size of halite crystals reaching few cm prevailed in the entire profile. The vari-size grained salt occur much more rare. The lack of sedimentary structures in both types of salts indicates considerably alteration of halite. In order to characterize degree of recrystallization of halite, observation of fluid inclusion was carried out in selected samples of coarse-grained and crystal-grained salts. They revealed that fluid inclusions rarely occur and form very diverse fluid inclusion assemblages. Most fluid inclusions occur on the boundaries of halite crystals. Complicated system of the FIA occurrences confirms complexity and multistage transformations which underwent the salt rocks.