. "RIV/00025798:_____/04:00001041" . . "79" . "Gaba\u0161ov\u00E1, Ananda" . "The hornblende-plagioclase hornfels from the contact aureole of the Tanvald granite, northern Bohemia - the raw material for Neolithic tools"@en . "The hornblende-plagioclase hornfels from the contact aureole of the Tanvald granite, northern Bohemia - the raw material for Neolithic tools"@en . "3"^^ . "RIV/00025798:_____/04:00001041!RIV08-MZP-00025798" . . "566679" . "4"^^ . "1" . . . "Bulletin of Geosciences" . "A horblende-plagioclase hornfels is described from a new exposure near the village of Je\u0159manice, where it is present as a 30-35 cm thick layer within spotted phyllites at the exocontact of the Krkono\u0161e-Jizera granite massif in the northern Bohemia. It corresponds to the metabasites used in the production of Neolithic artifacts (e.g. the Jistebsko archeological site near Jablonec nad Nisou), which were hitherto known only as loose fragments from localities on the lower slopes to the south of the granite ridge between Liberec and Tanvald. New data show that this rock is situated inside the contact aureole of the Tanvald alkali-feldspar granite, its remarkable mechanical strenth being due to the effects of contact metamorphism. The hornfels corresponds composionally to tholeiitic basalt. Its major minerals are amphiboles ranging in composition from the predominate magnesiohornblende to subordinate actinolite, calcic plagioclase, and ilmenite."@en . . . "Z(MZP:N03/98:00)" . "The hornblende-plagioclase hornfels from the contact aureole of the Tanvald granite, northern Bohemia - the raw material for Neolithic tools" . . "63-70" . "The hornblende-plagioclase hornfels from the contact aureole of the Tanvald granite, northern Bohemia - the raw material for Neolithic tools" . . . . "metabasites, nephrite, contact metamorphism, mineral whiskers, amphiboles, apaque minerals,, Neolithic artifacts"@en . . "Fediuk, Ferry" . "Aktinolitick\u00FD rohovec byl v kontaktn\u00ED aureole krkono\u0161sko-jizersk\u00E9ho mas\u00EDvu identifikov\u00E1n ji\u017E Gr\u00E4nzerem (1933) jako nefrit a materi\u00E1l k v\u00FDrob\u011B neolitick\u00FDch kamenn\u00FDch n\u00E1stroj\u016F z jihov\u00FDchodn\u00EDho okol\u00ED Mar\u0161ovick\u00E9ho vrchu. Amfibolick\u00FD rohovec je jemnozrnn\u00E1, ho\u0159\u010D\u00EDkem bohat\u00E1 hornina \u0161edozelen\u00E9 barvy , s n\u00E1znakem a\u017E lasturnat\u00E9ho lomu , m\u00EDsty se z\u0159etelnou laminac\u00ED. Jej\u00EDm hlavn\u00EDm miner\u00E1lem je jehli\u010Dkovit\u00FD aktinolit. Hornina pravd\u011Bpodobn\u011B tvo\u0159\u00ED synformn\u00ED polohy mal\u00E9 mocnosti uvnit\u0159 kontaktn\u011B metamofovan\u00FDch sericitick\u00FDch fylit\u016F ponikelsk\u00E9 skupiny. Z archeologick\u00E9ho hlediska jde o unik\u00E1tn\u00ED horninu vysok\u00E9 tvrdosti, kter\u00E1 slou\u017Eila k v\u00FDrob\u011B kamenn\u00FDch n\u00E1stroj\u016F, nalezen\u00FDch na mnoha prav\u011Bk\u00FDch s\u00EDdli\u0161t\u00EDch u n\u00E1s i v Evrop\u011B. Prav\u011Bk\u00E1 d\u00EDlna tedy je pro archeologii d\u016Fle\u017Eit\u00FDm referen\u010Dn\u00ED bodem celoevropsk\u00E9ho v\u00FDznamu."@cs . "1214-1119" . "Schov\u00E1nek, Pavel" . . "[F2195D93783A]" . . "Klom\u00EDnsk\u00FD, Josef" . . . "CZ - \u010Cesk\u00E1 republika" . "Amfibol-plagiokl\u00E1sov\u00FD rohovec z kontaktn\u00ED aureoly tanvalsk\u00E9ho granitu v severn\u00EDch \u010Cech\u00E1ch - surovina pro neolitick\u00E9 n\u00E1stroje"@cs . . . "A horblende-plagioclase hornfels is described from a new exposure near the village of Je\u0159manice, where it is present as a 30-35 cm thick layer within spotted phyllites at the exocontact of the Krkono\u0161e-Jizera granite massif in the northern Bohemia. It corresponds to the metabasites used in the production of Neolithic artifacts (e.g. the Jistebsko archeological site near Jablonec nad Nisou), which were hitherto known only as loose fragments from localities on the lower slopes to the south of the granite ridge between Liberec and Tanvald. New data show that this rock is situated inside the contact aureole of the Tanvald alkali-feldspar granite, its remarkable mechanical strenth being due to the effects of contact metamorphism. The hornfels corresponds composionally to tholeiitic basalt. Its major minerals are amphiboles ranging in composition from the predominate magnesiohornblende to subordinate actinolite, calcic plagioclase, and ilmenite." . "Amfibol-plagiokl\u00E1sov\u00FD rohovec z kontaktn\u00ED aureoly tanvalsk\u00E9ho granitu v severn\u00EDch \u010Cech\u00E1ch - surovina pro neolitick\u00E9 n\u00E1stroje"@cs . . . "8"^^ . .