The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina)
<p>The Ljubija ore deposits are the loci typici of siderite-barite-polysulphide deposits withinthe Inner Dinarides, Gemerides and Eastern Alps. Numerous sites of ore outcrops, smalleror larger ore bodies of mineralization, consisting of Fe carbonates, sulphides, barite andfluorite are scattere...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Croatian Geological Survey
2016-02-01
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| Series: | Geologia Croatica |
| Subjects: | |
| Online Access: | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/732 |
| _version_ | 1819077590835527680 |
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| author | Ladislav Palinkaš Sibila Borojević Šoštarić Sabina Strmić Palinkaš Walter Prochaska Zoltan Pécskay Franz Neubauer Jorge E Spangenberg |
| author_facet | Ladislav Palinkaš Sibila Borojević Šoštarić Sabina Strmić Palinkaš Walter Prochaska Zoltan Pécskay Franz Neubauer Jorge E Spangenberg |
| author_sort | Ladislav Palinkaš |
| collection | DOAJ |
| description | <p>The Ljubija ore deposits are the loci typici of siderite-barite-polysulphide deposits withinthe Inner Dinarides, Gemerides and Eastern Alps. Numerous sites of ore outcrops, smalleror larger ore bodies of mineralization, consisting of Fe carbonates, sulphides, barite andfluorite are scattered over an area of 150 square km. The half billion tons of iron ore resourcesoccur as replacement in dolostones and limestones, and as open-space fillings(veins, veinlets) in phyllites and sandstones. The genesis of the Ljubija ore deposits hasbeen explained as (i) syngenetic sedimentary-exhalative, (ii) hydrothermal-metasomatic inMiddle Triassic time or (iii) hydrothermal replacement of sedimentary carbonates in Permiantime. Basically two alternatives Variscan or Alpine metallogeny, frame the time of genesisfrom the Middle Carboniferous to the Middle Triassic. Genetic interpretation of theLjubija ore deposits required convincing arguments based on recent achievements of platetectonics. This contribution presents a set of new data on ore petrology, geochemistry, geologyand time of formation. The Ljubija ore field could justifiably be termed the „Ljubijageothermal field“, due to its areal extent and the thermal characteristics of numerous oredeposits and occurrences within the Sana-Una Palaeozoic terrain. The Ljubija geothermalfield marks the first signs of thermal instability of Pangea, revealing its breakdown along thedeep fractures and heralding incipient intracontinental rifting, the first phase of the newAlpine Wilson cycle. The research reveals novel data on the P-T-X characteristics of oreforming fluids (microthermometry, ion chromatography, Raman spectrometry), sulphur isotopes,maturity of organic matter by vitrinite reflection, and age determination by 40Ar/39Arand K-Ar methods. It adopts argumentatively all the estimated research parameters thatconstrain a justified genetic model.</p> |
| first_indexed | 2024-12-21T18:59:37Z |
| format | Article |
| id | doaj.art-a5bd845bf2984a50bb8ac24cff813ac6 |
| institution | Directory Open Access Journal |
| issn | 1330-030X 1333-4875 |
| language | English |
| last_indexed | 2024-12-21T18:59:37Z |
| publishDate | 2016-02-01 |
| publisher | Croatian Geological Survey |
| record_format | Article |
| series | Geologia Croatica |
| spelling | doaj.art-a5bd845bf2984a50bb8ac24cff813ac62022-12-21T18:53:31ZengCroatian Geological SurveyGeologia Croatica1330-030X1333-48752016-02-0169133010.4154/GC.2016.02516The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina)Ladislav PalinkašSibila Borojević ŠoštarićSabina Strmić PalinkašWalter ProchaskaZoltan PécskayFranz NeubauerJorge E Spangenberg<p>The Ljubija ore deposits are the loci typici of siderite-barite-polysulphide deposits withinthe Inner Dinarides, Gemerides and Eastern Alps. Numerous sites of ore outcrops, smalleror larger ore bodies of mineralization, consisting of Fe carbonates, sulphides, barite andfluorite are scattered over an area of 150 square km. The half billion tons of iron ore resourcesoccur as replacement in dolostones and limestones, and as open-space fillings(veins, veinlets) in phyllites and sandstones. The genesis of the Ljubija ore deposits hasbeen explained as (i) syngenetic sedimentary-exhalative, (ii) hydrothermal-metasomatic inMiddle Triassic time or (iii) hydrothermal replacement of sedimentary carbonates in Permiantime. Basically two alternatives Variscan or Alpine metallogeny, frame the time of genesisfrom the Middle Carboniferous to the Middle Triassic. Genetic interpretation of theLjubija ore deposits required convincing arguments based on recent achievements of platetectonics. This contribution presents a set of new data on ore petrology, geochemistry, geologyand time of formation. The Ljubija ore field could justifiably be termed the „Ljubijageothermal field“, due to its areal extent and the thermal characteristics of numerous oredeposits and occurrences within the Sana-Una Palaeozoic terrain. The Ljubija geothermalfield marks the first signs of thermal instability of Pangea, revealing its breakdown along thedeep fractures and heralding incipient intracontinental rifting, the first phase of the newAlpine Wilson cycle. The research reveals novel data on the P-T-X characteristics of oreforming fluids (microthermometry, ion chromatography, Raman spectrometry), sulphur isotopes,maturity of organic matter by vitrinite reflection, and age determination by 40Ar/39Arand K-Ar methods. It adopts argumentatively all the estimated research parameters thatconstrain a justified genetic model.</p>http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/732Hydrothermal, metasomatic, geothermal, siderite, Permian |
| spellingShingle | Ladislav Palinkaš Sibila Borojević Šoštarić Sabina Strmić Palinkaš Walter Prochaska Zoltan Pécskay Franz Neubauer Jorge E Spangenberg The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina) Geologia Croatica Hydrothermal, metasomatic, geothermal, siderite, Permian |
| title | The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina) |
| title_full | The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina) |
| title_fullStr | The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina) |
| title_full_unstemmed | The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina) |
| title_short | The Ljubija geothermal field: A herald of the Pangea break-up (NW Bosnia and Herzegovina) |
| title_sort | ljubija geothermal field a herald of the pangea break up nw bosnia and herzegovina |
| topic | Hydrothermal, metasomatic, geothermal, siderite, Permian |
| url | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/732 |
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