Pregled bibliografske jedinice broj: 534024
The Guadalupian (Permian) Kamura event in European Tethys
The Guadalupian (Permian) Kamura event in European Tethys // Palaeogeography, palaeoclimatology, palaeoecology, 308 (2011), 1/2; 12-21 doi:10.1016/j.palaeo.2010.09.034 (međunarodna recenzija, članak, znanstveni)
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Naslov
The Guadalupian (Permian) Kamura event in European Tethys
Autori
Isozaki, Yukio ; Aljinović, Dunja ; Kawahata, Hodaka
Izvornik
Palaeogeography, palaeoclimatology, palaeoecology (0031-0182) 308
(2011), 1/2;
12-21
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Permian; Guadalupian; Capitanian; carbon isotope; Paeo-Tethys; productivity; cooling; eutrophication; extinction; Dinarides
Sažetak
In order to document paleoenvironmental conditions of the equatorial western Paleo-Tethys during the late Middle Permian prior to the end-Guadalupian mass extinction, chemostratigraphic analysis using stable carbon isotopes was conducted for the Guadalupian rocks at Brusane in the Velebit Mtn., central Croatia. By analyzing 72 carbonate samples of the Capitanian (Upper Guadalupian) Velebit Formation, we found an interval with unusually high δ13Ccarb values (+4 to+6‰) in the ca. 150 m-thick Yabeina (fusuline) Zone. The present find clarifies that the primary productivity and burial rate into the sediments were considerably high during the Capitanian in westernmost Paleo-Tethys. This chemostratigraphic signal is properly correlated with the “Kamura event” detected in a mid-Panthalassan paleo-atoll limestone in Japan. The present results identify the Capitanian “Kamura event” for the first time in European Paleo-Tethys on the opposite side of the globe from the mid-Panthalassan paleo-seamount, and prove the global context of the event as well as its utility in chemostratigraphic correlation. In order to enhance bioproductivity on a global scale, the increase in nutrient supply is inevitable. In addition to riverine run-off from Pangea, active oceanic circulation, in particular upwelling of deep-sea water enriched in nutrients, was likely vital both in Panthalassa and Paleo- Tethys. The extinction of some Guadalupian fauna, in particular photosymbiotic community (large-tested fusulines, large bivalves, rugose corals), was likely related to a temporary cooling coupled with eutrophication in low-latitude shallow marine environments of Paleo-Tethys and Panthalassa.
Izvorni jezik
Engleski
Znanstvena područja
Geologija
POVEZANOST RADA
Projekti:
195-0000000-3202 - Definicija facijesa u bazi Dinarida i usporedba sa širim tetiskim prostorom (Aljinović, Dunja, MZOS ) ( CroRIS)
195-1953068-2704 - Dinarski krš: geološka evolucija, mineralne sirovine, paleotla i tla (Durn, Goran, MZOS ) ( CroRIS)
Ustanove:
Rudarsko-geološko-naftni fakultet, Zagreb
Profili:
Dunja Aljinović
(autor)
Poveznice na cjeloviti tekst rada:
Pristup cjelovitom tekstu rada doi www.sciencedirect.com dx.doi.orgCitiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus