Podmínky vzniku hydrotermální mineralizace z vrtu Janovice-9
| Title in English | Conditions of origin of the hydrothermal mineralization in the Janovice-9 borehole |
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| Authors | |
| Year of publication | 2001 |
| Type | Article in Periodical |
| Magazine / Source | Geol. výzk. Mor. Slez. v r.2000 |
| MU Faculty or unit | |
| Citation | |
| Field | Geology and mineralogy |
| Keywords | Culm; sulphide mineralization; fluid inclusions; stable isotopes |
| Description | Formation conditions of the base metal sulphide mineralization found in Ja-9 borehole (10 km SE from Frýdek-Místek, NE Moravia) have been investigated. Homogenization temperatures of the fluid inclusions in sphalerite, quartz and calcite range between 31 and 157 C. Minerals precipitated from Ca-Na-Cl fluid with higher salinities between 9 and 19 wt. % NaCl equiv. Isotopic composition indicates marine origin of the mineralizing solutions. Combined fluid inclusion and sulphur isotope thermometry allow to estimate pressure condition as high as 30 MPa. This value corresponds with a present-day position of the studied sample in depth 1085 m. |
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