{"id":42169,"date":"2023-06-01T06:39:45","date_gmt":"2023-06-01T06:39:45","guid":{"rendered":"https:\/\/www.hgi-cgs.hr\/?page_id=42169"},"modified":"2023-06-01T07:22:44","modified_gmt":"2023-06-01T07:22:44","slug":"collapse-of-terrestrial-ecosystems-linked-to-heavy-metal-poisoning-during-the-toarcian-oceanic-anoxic-event","status":"publish","type":"page","link":"https:\/\/www.hgi-cgs.hr\/en\/collapse-of-terrestrial-ecosystems-linked-to-heavy-metal-poisoning-during-the-toarcian-oceanic-anoxic-event\/","title":{"rendered":"Collapse of terrestrial ecosystems linked to heavy metal poisoning during the Toarcian oceanic anoxic event"},"content":{"rendered":"

[et_pb_section fb_built=”1″ fullwidth=”on” _builder_version=”4.16″ custom_padding=”0px||0px|||” global_colors_info=”{}”][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=”{}”][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”][\/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”][\/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”][\/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”][\/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”][\/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”][\/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”][\/et_pb_slide][\/et_pb_fullwidth_slider][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_text _builder_version=”4.16″ text_font_size=”32px” header_2_text_color=”#1e5096″ global_colors_info=”{}”]<\/p>\n

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

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Collapse of terrestrial ecosystems linked to heavy metal poisoning during the Toarcian oceanic anoxic event<\/h2>\n

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U znanstvenom \u010dasopisu Geology (Q1, broj 1 u kategoriji Geology prema WoSCC, IF 6.324) objavljen je znanstveni rad pod naslovom \u201eCollapse of terrestrial ecosystems linked to heavy metal poisoning during the Toarcian oceanic anoxic event\u201c. Rad je rezultat suradnje znanstvenika iz Hrvatskoga geolo\u0161kog instituta te iz brojnih drugih institucija iz Kine i Kanade.<\/p>\n

U \u010dlanku smo prona\u0161li dokaz za zna\u010dajnu krizu kopnenih biota i promjenu vegetacije tijekom mezozojske hiperterme, toarcijskog oceanskog anoksi\u010dnog doga\u0111aja (T-OAE). Novi geokemijski i palinolo\u0161ki podaci iz jezerske sukcesije u Sjevernoj Kini otkrivaju pove\u0107anu pojavu mutantnih\/aberantnih palinomorfa kao \u0161to su patuljasti rast spora, asimetri\u010dne tetrade Classopollisa i aberantne spore istovremeno s pove\u0107anjem te\u0161kih metala (Hg, Cu, Cr, Cd, Pb, As). Pojava teratolo\u0161kih spora i peludi u vi\u0161e skupina biljaka ukazuje na ukupnu ekolo\u0161ku krizu vegetacije. Na\u0161i podaci pokazuju da je kombinacija \u0161iroko rasprostranjene floristi\u010dke krize s ve\u0107om oksidacijom i razgradnjom kopnene organske tvari, poja\u010danim hidrolo\u0161kim ciklusom, tro\u0161enjem i istovremenim vulkanizmom velikih razmjera rezultirala vi\u0161im koncentracijama toksi\u010dnih te\u0161kih metala u kopnenim ekosustavima. Ovi te\u0161ki metali mogli su otrovati biljke uzrokuju\u0107i mutacije i ometaju\u0107i njihov reproduktivni ciklus, \u010dine\u0107i ih ranjivijima na sekundarne stresove kao \u0161to su klimatski ekstremi i\/ili promjene stani\u0161ta, \u0161to bi na kraju dovelo do rasprostranjenog kolapsa na svim zemaljskim trofi\u010dkim razinama.<\/p>\n

Rad je dostupan na sljede\u0107oj poveznici: <\/em><\/a>Collapse of terrestrial ecosystems linked to heavy metal poisoning during the Toarcian oceanic anoxic event | Geology | GeoScienceWorld<\/em><\/a><\/p>\n

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NAJNOVIJI OBJAVLJENI RADOVICollapse of terrestrial ecosystems linked to heavy metal poisoning during the Toarcian oceanic anoxic eventU znanstvenom \u010dasopisu Geology (Q1, broj 1 u kategoriji Geology prema WoSCC, IF 6.324) objavljen je znanstveni rad pod naslovom \u201eCollapse of terrestrial ecosystems linked to heavy metal poisoning during the Toarcian oceanic anoxic event\u201c. Rad je rezultat suradnje […]<\/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-42169","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