{"id":49340,"date":"2026-10-29T07:58:33","date_gmt":"2026-10-29T07:58:33","guid":{"rendered":"https:\/\/www.hgi-cgs.hr\/?page_id=49340"},"modified":"2026-10-29T07:58:40","modified_gmt":"2026-10-29T07:58:40","slug":"1reactivation-of-variscan-subduction-modified-mantle-during-middle-triassic-rifting-insights-from-andesitic-pyroclastics-of-northern-adriatic-passive-margin-mt-zumberak-nw-croatia","status":"publish","type":"page","link":"https:\/\/www.hgi-cgs.hr\/en\/1reactivation-of-variscan-subduction-modified-mantle-during-middle-triassic-rifting-insights-from-andesitic-pyroclastics-of-northern-adriatic-passive-margin-mt-zumberak-nw-croatia\/","title":{"rendered":"1Reactivation of Variscan subduction-modified mantle during Middle Triassic rifting: Insights from andesitic pyroclastics of northern Adriatic passive margin (Mt. \u017dumberak, NW Croatia)"},"content":{"rendered":"

[et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”4.16″ custom_padding=”0px||0px|||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_fullwidth_slider _builder_version=”4.16″ min_height=”112px” height=”400px” custom_margin=”0px||||false|false” custom_padding=”0px||18px||false|false” auto=”on” auto_ignore_hover=”on” locked=”off” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_slide heading=”Hrvatski geolo\u0161ki institut” _builder_version=”4.16″ header_font=”|||on|||||” background_image=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2020\/03\/Br\u010di\u0107_Drvenik02-scaled.jpg” background_enable_image=”on” locked=”off” global_colors_info=”{}” sticky_transition=”on” theme_builder_area=”post_content”][\/et_pb_slide][et_pb_slide heading=”Hrvatski geolo\u0161ki institut” _builder_version=”4.16″ header_font=”|||on|||||” background_image=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2020\/03\/ban2-scaled.jpg” background_enable_image=”on” locked=”off” global_colors_info=”{}” sticky_transition=”on” theme_builder_area=”post_content”][\/et_pb_slide][et_pb_slide heading=”Hrvatski geolo\u0161ki institut” _builder_version=”4.16″ header_font=”|||on|||||” background_image=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2020\/03\/20190228_094232-scaled.jpg” background_enable_image=”on” locked=”off” global_colors_info=”{}” sticky_transition=”on” theme_builder_area=”post_content”][\/et_pb_slide][et_pb_slide heading=”Hrvatski geolo\u0161ki institut” _builder_version=”4.16″ header_font=”|||on|||||” background_image=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2020\/03\/ban3-scaled.jpg” background_enable_image=”on” locked=”off” global_colors_info=”{}” sticky_transition=”on” theme_builder_area=”post_content”][\/et_pb_slide][et_pb_slide heading=”Hrvatski geolo\u0161ki institut” _builder_version=”4.16″ header_font=”|||on|||||” background_image=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2020\/03\/Bijele_stijene-Gorski_kotar-scaled.jpg” background_enable_image=”on” locked=”off” global_colors_info=”{}” sticky_transition=”on” theme_builder_area=”post_content”][\/et_pb_slide][et_pb_slide heading=”Hrvatski geolo\u0161ki institut” _builder_version=”4.16″ header_font=”|||on|||||” background_image=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2020\/03\/ban4-scaled.jpg” background_enable_image=”on” locked=”off” global_colors_info=”{}” sticky_transition=”on” theme_builder_area=”post_content”][\/et_pb_slide][et_pb_slide heading=”Hrvatski geolo\u0161ki institut” _builder_version=”4.16″ header_font=”|||on|||||” background_image=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2020\/03\/ban5-scaled.jpg” background_enable_image=”on” locked=”off” global_colors_info=”{}” sticky_transition=”on” theme_builder_area=”post_content”][\/et_pb_slide][\/et_pb_fullwidth_slider][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.16″ global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.16″ text_font_size=”32px” header_2_text_color=”#1e5096″ global_colors_info=”{}” theme_builder_area=”post_content”]<\/p>\n

NAJNOVIJI OBJAVLJENI RADOVI<\/strong><\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.9″ text_font_size=”32px” header_2_text_color=”#1e5096″ header_2_line_height=”1.3em” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n

Reactivation of Variscan subduction-modified mantle during <\/span>Middle Triassic rifting: Insights from andesitic pyroclastics of <\/span>northern Adriatic passive margin (Mt. \u017dumberak, NW Croatia)<\/span><\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ custom_padding=”20px||41px|||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row _builder_version=”4.16″ custom_padding=”0px|||||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_image src=”https:\/\/www.hgi-cgs.hr\/wp-content\/uploads\/2026\/10\/Geologica-Acta_Logo.jpg” alt=”Geologia Croatica logo” title_text=”Geologica Acta_Logo” align=”center” align_tablet=”center” align_phone=”” align_last_edited=”on|desktop” _builder_version=”4.27.9″ width=”32%” max_width=”65%” module_alignment=”center” hover_enabled=”0″ border_radii=”on|5px|5px|5px|5px” box_shadow_style=”preset1″ box_shadow_blur=”15px” global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ min_height=”192px” custom_margin=”12px|auto||auto||” custom_padding=”0px|||||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.27.9″ text_font=”||||||||” link_font=”||||||||” link_text_color=”#e09900″ custom_margin=”18px|||||” custom_padding=”|10px||10px|false|true” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n

Rezultati istra\u017eivanja u okviru projekta GOST (IP-2019-04-3824) Hrvatske zaklade za znanost i projekta GeoDrift (NRRP 2021\u20132026 of the EU \u2013 NextGenerationEU) objavljeni u \u010dasopisu Geologica Acta prikazuju mineralo\u0161ke, petrolo\u0161ke, geokemijske te litostatigrafske i biostratigrafske podatke o srednjotrijaskim (kasni anizik; ilir) piroklasti\u010dnim stijenama koje se izmjenjuju sa siliciklasti\u010dnim i karbonatnim sedimentima unutar vulkano-sedimentne sukcesije \u017dumbera\u010dke gore. U piroklasti\u010dnom materijalu prevladavaju andezitni kristalno-vitritni tufovi kalcijsko-alkalijskog do \u0161o\u0161onitnog afiniteta. Nastanak magme bio je sna\u017eno uvjetovan naslije\u0111em iz ranijih subdukcijskih procesa. Izvor u subkontinentalnom litosfernom pla\u0161tu bio je metasomatski izmijenjen tijekom variscijske subdukcije dodatkom komponenti podrijetlom iz sedimenata, \u010dime je stvorena kemijski heterogena domena litosfernog pla\u0161ta, oboga\u0107ena elementima mobilnim u fluidima i taljevini. Tijekom kasnijeg srednjotrijaskog \u0161irenja litosfere, adijabatsko taljenje povezano s riftanjem selektivno je reaktiviralo prethodno izmijenjene domene pla\u0161ta, \u0161to je rezultiralo nastankom hibridnih magmi. One zadr\u017eavaju jasan geokemijski potpis subdukcije, unato\u010d tome \u0161to su nastale u tektonskom re\u017eimu ekstenzije. Eksplozivni vulkanizam bio je koncentriran du\u017e dubokih diskontinuiteta u kori koji su slu\u017eili kao naslije\u0111eni strukturni kanali, povezuju\u0107i zone taljenja u pla\u0161tu s razvijaju\u0107om arhitekturom rifta. Piroklasti\u010dni materijal transportiran je strujama i\/ili raspr\u0161ivanjem kroz atmosferu te je talo\u017een zajedno sa siliciklasti\u010dnim i karbonatnim sedimentima dubokomorskog okoli\u0161a, unutar kratkotrajnog, nerazvijenog intrakontinentalnog ekstenzijskog bazena (polugrabena) generiranog riftanjem. Ovaj, tzv. Sjevernohrvatski trijaski rifni bazen (NCTRB) razvio se du\u017e sjevernog ruba Adria plo\u010de (Velika Adrija) tijekom srednjeg do kasnog anizika te kasnog ladinika. Piroklasti\u010dne stijene sa \u017dumbera\u010dke gore pokazuju sna\u017enu pozitivnu korelaciju s genetski srodnim andezitnim tufovima iste starosti, koji izdanjuju na drugim lokacijama unutar NCTRB-a \u2013 osobito na podru\u010dju Ivan\u0161\u010dice \u2013 \u0161to potvr\u0111uje postojanje magmatskog potpisa zajedni\u010dkog za cijeli bazen, a koji potje\u010de iz litosfere izmijenjene subdukcijom.<\/p>\n

Rad je dostupan na poveznici: https:\/\/revistes.ub.edu\/index.php\/GEOACTA\/article\/view\/53374\/48107<\/em><\/a><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

NAJNOVIJI OBJAVLJENI RADOVIReactivation of Variscan subduction-modified mantle during Middle Triassic rifting: Insights from andesitic pyroclastics of northern Adriatic passive margin (Mt. \u017dumberak, NW Croatia)Rezultati istra\u017eivanja u okviru projekta GOST (IP-2019-04-3824) Hrvatske zaklade za znanost i projekta GeoDrift (NRRP 2021\u20132026 of the EU \u2013 NextGenerationEU) objavljeni u \u010dasopisu Geologica Acta prikazuju mineralo\u0161ke, petrolo\u0161ke, geokemijske te litostatigrafske […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-49340","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t