{"id":1468,"date":"2024-05-22T20:48:33","date_gmt":"2024-05-22T19:48:33","guid":{"rendered":"https:\/\/sga.cuni.cz\/?p=1468"},"modified":"2024-05-22T21:07:33","modified_gmt":"2024-05-22T20:07:33","slug":"excursion-to-slanske-a-zemplinske-vrchy-2024","status":"publish","type":"post","link":"https:\/\/sga.cuni.cz\/?p=1468","title":{"rendered":"Excursion to Slansk\u00e9 a Zemplinsk\u00e9 vrchy 2024"},"content":{"rendered":"\n

The excursion took place from 24.4.-28.4.2024 in the locality of the neovolcanic Slansk\u00e9 vrchy mountain range, which extends in the eastern part of Slovakia east of the city of Pre\u0161ov and with its length of 100 km extends to the territory of neighboring Hungary. The Slovak part of the mountain range consists dominantly of andesite stratovolcanoes reaching heights from 800 m.a.s.l. up to 1092 m.a.s.l., which stretch in a crescent-shaped chain from north to south. They were formed at the fault interface between the tectonic units of the Z\u00e1padn\u00ed Karpaty (gemerikum, fatrikum) in the west and hard-to-classify units in the east – zemplinikum, Pozdi\u0161ovsko-Ina\u010dovsk\u00e1 unit. The first magmatic activity is dated to the Lower Miocene as a result of the Alpine orogeny. The well-recognizable stratovolcanoes include, from north to south: \u0160\u0165avnica, Zlatob\u00e1\u0148sk\u00fd, Makovica, Strechovy vrch, Bogota, Hradisko, Bradlo and Velk\u00fd Mili\u010d. During their formation, parts of them also underwent significant hydrothermal transformation, during which ore and opal mineralization were established.<\/p>\n\n\n\n

some visited localities:<\/p>\n\n\n\n

Zlat\u00e1 Ba\u0148a
– Zlatobansky stratovolcano
– 140 types of minerals described
-polymetallic (Mo-Cu-Pb-Zn-Ag) and antimony mineralization
– antimonite, amethyst, bournonite, boulangerite, metastibnite, cinnabarite, galena, pyrite<\/p>\n\n\n\n

\"\"<\/a>
Fig. 1 – Zlat\u00e1 Ba\u0148a locality <\/figcaption><\/figure>\n\n\n\n

Dubnik
– the southern part of the Zlat\u00e1 Ba\u0148a stratovolcano
– the formation of mineralization in andesite lava flows by post-magmatic hydrothermal activity
– significant deposit of opals (precious, milky,  hyalit)
-historical mining of cinnabarite as an ore of mercury<\/p>\n\n\n\n

\"\"<\/a>
Fig. 2 – Dubnik precious opal<\/figcaption><\/figure>\n\n\n\n

Herlany
-Strechov\u00fd vrch stratovolcano
– the famous m\u00e4sovy opal of a brown-red color<\/p>\n\n\n\n

The next part of the excursion took place in an elevation formed by Permocarbon continental sediments with anthracite and thick layers of tuffs – the Zemplinsk\u00e9 vrchy. It is a synclinal structure of a complex structure consisting mainly of highly metamorphosed rocks (mainly gneisses, amphibolites).<\/p>\n\n\n\n

By\u0161ta – Brezina
-near the Velk\u00fd Mili\u010d stratovolcano
– agates, chalcedony<\/p>\n\n\n\n

Velk\u00e1 Tr\u0148a
– the western slope of the Zemplinsk\u00e9 Vrchy
-Anthracite<\/p>\n\n\n\n

\"\"<\/a>
Fig. 3 – Excursion checking the geological map in the field<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

The excursion took place from 24.4.-28.4.2024 in the locality of the neovolcanic Slansk\u00e9 vrchy mountain range, which extends in the eastern part of Slovakia east of the city of Pre\u0161ov and with its length of 100 km extends to the territory of neighboring Hungary. The Slovak part of the mountain \u2026 Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[3,6,1,4],"tags":[53,46,22,48,56,50,51,52,18,47,55,54],"class_list":["post-1468","post","type-post","status-publish","format-standard","hentry","category-events","category-news","category-nezarazene","category-our-activities","tag-dubnik","tag-east-slovakia","tag-gold","tag-herlany","tag-miocene","tag-opal","tag-precious","tag-precious-opal","tag-sga","tag-slovakia","tag-stratovolcano","tag-zlata-bana"],"_links":{"self":[{"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/posts\/1468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1468"}],"version-history":[{"count":4,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/posts\/1468\/revisions"}],"predecessor-version":[{"id":1497,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/posts\/1468\/revisions\/1497"}],"wp:attachment":[{"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}