{"id":794,"date":"2016-10-15T18:00:12","date_gmt":"2016-10-15T17:00:12","guid":{"rendered":"http:\/\/sga.cuni.cz\/?p=794"},"modified":"2016-11-18T13:41:51","modified_gmt":"2016-11-18T12:41:51","slug":"field-trip-to-central-slovakia-neogene-volcanic-field","status":"publish","type":"post","link":"https:\/\/sga.cuni.cz\/?p=794","title":{"rendered":"Field trip to Central Slovakia Neogene Volcanic Field"},"content":{"rendered":"

Traditionally our Chapter organizes autumn field trips to abroad. This time it was to neogene volcanic field in Central Slovakia, in area of Bansk\u00e1 \u0160tiavnica and Bansk\u00e1 Bystrica<\/span>. Field trip took place from 7th to 10th October 2016<\/strong>.<\/p>\n

\"pseudomalachite\"<\/a>

pseudomalachite<\/p><\/div>\n

First day we visited quarry near Lehotka pod Brehmi<\/span>. We have seen here a lot of perlite and some obsidian peaces, volcanic glass of neogene age.<\/p>\n

Other day we focused on tertiary Fe, Cu mineralization in meta-greywackes and meta-sandstones of permian age in \u013dubietov\u00e1 \u2013 Podlipa area<\/span>. Here we visited heaps of mines Johan, Reiner and Doln\u00ed Ladislav<\/span> with nice samples of pseudomalachite and libethenite. Then we moved to \u0160pania Dolina<\/span>, famous by its historical mining of Fe and Cu ores from deposit Piesky<\/span> which is also formed by permian meta-sediments affected by tertiary volcanic processes with mesozoic carbonate rocks around. We were collecting here some samples of azurite and malachite.<\/p>\n

\"Sfalerite<\/a>

sfalerite in quartz vein<\/p><\/div>\n

Third day our interest was moved to locality Farbi\u0161t\u011b near Ponick\u00e1 Leh\u00f4tka<\/span> where we can find triassic carbonates penetrated by triassic andezites and ryolites. From primary tennantite and chalkopyrite grew up big amount of secondary minerals. Next we looked at Bansk\u00e1 Bel\u00e1<\/span> where we were looking for some nice quartz varieties from mesozoic quartzites.<\/p>\n

At the last day of excursion we divided into two groups. First group visited active gold mine Roz\u00e1lia<\/span> and second group visited the heap of this mine. Deposit is evolved in volcanics of \u0160tiavnica stratovolcano (mainly andesites). Before gold there was mined Cu, Pb and Zn. Gold with base metal mineralization is contained in brecciated and\/or banded quartz veins.<\/p>\n

\"DSCN1674\"<\/a>23 members of our Chapter participated on this excursion which was led by Chapter president Ond\u0159ej Kr\u00e1tk\u00fd.<\/p>\n

For more photos click here<\/a>.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Traditionally our Chapter organizes autumn field trips to abroad. This time it was to neogene volcanic field in Central Slovakia, in area of Bansk\u00e1 \u0160tiavnica and Bansk\u00e1 Bystrica. Field trip took place from 7th to 10th October 2016. First day we visited quarry near Lehotka pod Brehmi. We have seen here a \u2026 Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[6,4],"tags":[],"class_list":["post-794","post","type-post","status-publish","format-standard","hentry","category-news","category-our-activities"],"_links":{"self":[{"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/posts\/794","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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=794"}],"version-history":[{"count":14,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/posts\/794\/revisions"}],"predecessor-version":[{"id":875,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=\/wp\/v2\/posts\/794\/revisions\/875"}],"wp:attachment":[{"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sga.cuni.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}