{"id":48659,"date":"2026-07-29T05:57:34","date_gmt":"2026-07-29T05:57:34","guid":{"rendered":"https:\/\/www.hgi-cgs.hr\/?page_id=48659"},"modified":"2026-07-29T06:03:09","modified_gmt":"2026-07-29T06:03:09","slug":"mineralogical-and-geochemical-variability-of-the-mamutovac-1a-upper-eocene-karst-bauxite-deposit-croatian-dinarides-and-its-crm-potential","status":"publish","type":"page","link":"https:\/\/www.hgi-cgs.hr\/en\/mineralogical-and-geochemical-variability-of-the-mamutovac-1a-upper-eocene-karst-bauxite-deposit-croatian-dinarides-and-its-crm-potential\/","title":{"rendered":"Mineralogical and Geochemical Variability of the Mamutovac-1a Upper Eocene Karst Bauxite Deposit (Croatian Dinarides) and Its CRM Potential"},"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=”4.27.7″ 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

Mineralogical and Geochemical Variability of the Mamutovac-1a Upper Eocene Karst Bauxite Deposit (Croatian Dinarides) and Its CRM Potential<\/span><\/strong><\/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\/07\/minerals.png” alt=”Geosciences logo” title_text=”minerals” align=”center” align_tablet=”center” align_phone=”” align_last_edited=”on|desktop” _builder_version=”4.27.7″ width=”25%” 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=”4.27.7″ 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

U\u00a0 \u010dasopisu Minerals objavljen je znanstveni rad pod naslovom Mineralogical and Geochemical Variability of the Mamutovac-1a Upper Eocene Karst Bauxite Deposit (Croatian Dinarides) and Its CRM Potential. Rad predstavlja rezultate detaljnog mineralo\u0161kog i geokemijskog istra\u017eivanja le\u017ei\u0161ta boksita Mamutovac-1a na podru\u010dju Promine. Istra\u017eivanje je provedeno u suradnji s Geolo\u0161kim odsjekom Prirodoslovno-matemati\u010dkog fakulteta Sveu\u010dili\u0161ta u Zagrebu u okviru projekta Prospects of REE recovery from bauxite and bauxite residue in the ESEE region (REEBAUX), financiranog od strane EIT Raw Materials.<\/span><\/p>\n

Istra\u017eivanje se temelji na analizi istra\u017ene bu\u0161otine dubine 25,1 m, pri \u010demu su kombinirane petrografske analize, rendgenska difrakcija (XRD), mjerenja magnetskog susceptibiliteta te geokemijske analize glavnih elemenata, elemenata u tragovima te elemenata rijetkih zemalja (REE). Rezultati pokazuju izra\u017eenu vertikalnu promjenjivost le\u017ei\u0161ta, na temelju koje su izdvojene \u010detiri facijesne zone s karakteristi\u010dnim mineralo\u0161kim i geokemijskim obilje\u017ejima. Dobiveni rezultati upu\u0107uju na to da je le\u017ei\u0161te nastalo tijekom vi\u0161e razvojnih faza, uklju\u010duju\u0107i procese in situ boksitizacije, naknadnog transporta i redepozicije materijala te promjene oksidacijsko-reduktivnih uvjeta tijekom njegova formiranja.<\/span><\/p>\n

Poseban naglasak stavljen je na raspodjelu elemenata rijetkih zemalja (REE) i drugih kriti\u010dnih elemenata. Rezultati pokazuju da se koncentracije REE pove\u0107avaju prema dubljim dijelovima le\u017ei\u0161ta te upu\u0107uju na va\u017enu ulogu fosfatnih faza u njihovom vezivanju. Povi\u0161ene koncentracije i pove\u0107ana izlu\u017eljivost pojedinih kriti\u010dnih elemenata (La, Sc, Ga i V) ukazuju da boksitno le\u017ei\u0161te Mamutovac-1a predstavlja perspektivno le\u017ei\u0161te za daljnja istra\u017eivanja potencijala kriti\u010dnih mineralnih sirovina. Rad donosi nove spoznaje o procesima boksitizacije i razvoju kr\u0161kih boksita u hrvatskim Dinaridima.<\/span><\/p>\n

Rad je dostupan na poveznici: <\/span>https:\/\/doi.org\/10.3390\/min16050547<\/a><\/em><\/p>\n

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NAJNOVIJI OBJAVLJENI RADOVIMineralogical and Geochemical Variability of the Mamutovac-1a Upper Eocene Karst Bauxite Deposit (Croatian Dinarides) and Its CRM PotentialU\u00a0 \u010dasopisu Minerals objavljen je znanstveni rad pod naslovom Mineralogical and Geochemical Variability of the Mamutovac-1a Upper Eocene Karst Bauxite Deposit (Croatian Dinarides) and Its CRM Potential. Rad predstavlja rezultate detaljnog mineralo\u0161kog i geokemijskog istra\u017eivanja le\u017ei\u0161ta […]<\/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-48659","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\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