DOI: 10.1016/j.cretres.2019.104351
论文题名: Carbonate ecosystem and environmental evolution during the Valanginian–Barremian: Discussion on possible controlling factors in the Apennine Carbonate Platform record (Italy)
作者: Amodio S. ; Barattolo F. ; Martino M.
刊名: Cretaceous Research
ISSN: 1956671
出版年: 2020
卷: 108 语种: 英语
英文关键词: Biostratigraphy
; Biotic events
; Depositional sequences
; Eustatic cycles
; Shallow-water environments
Scopus关键词: Barremian
; biostratigraphy
; biotic factor
; carbonate platform
; depositional sequence
; eustacy
; fossil assemblage
; lithofacies
; paleoclimate
; paleoenvironment
; shallow water
; Valanginian
; Apennines
; Italy
; algae
; Chlorophyta
; Foraminifera
英文摘要: Shallow-water carbonate records are often characterised by low stratigraphic resolution and poor chronostratigraphic calibration despite abundant and diversified fossil content. We present here a stratigraphic study of a Valanginian–Barremian carbonate platform section, exposed in the southern Apennines (Italy). In the San Lorenzello section, we produced a high-resolution dataset integrating sedimentology, biostratigraphy, cyclostratigraphy and sequence stratigraphy to investigate how neritic biofacies responded to palaeonvironmental and palaeoclimatic changes in the time interval after the Weissert event. Fossil assemblages and lithofacies characteristics allowed the reconstruction of the paleoenvironmental history of the section, which is part of a shallow carbonate platform influenced by waves activity, storm events and sea-level changes. The latter induced cyclic emersions of this flat-topped subtropical platform, witnessed by karstification and pedogenesis. Investigations lead to a refinement of the previous biostratigraphy, also producing a close agreement between the biostratigraphic and C-isotope position of the Valanginian–Hauterivian boundary. Numerous green algae and benthic foraminifera bioevents have been identified and six biozones have been defined and anchored to the southern Tethys biozonal schemes. We used biostratigraphy and previous C-isotope stratigraphy to correlate local to global stratigraphic events and to discuss controlling factors influenced this carbonate platform system. An eustatic control on the hierarchical organization of the superbundles, also interpreted in terms of depositional sequences, is evidenced. Most Trangressive/Regressive Facies Trends (T/RFTs) boundaries have been correlated with the “global” Sequence Boundaries and to the Cretaceous eustatic curve. A correspondence between calcareous algae and benthic foraminiferal turnover phases and long-term eustatic events is also shown. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158589
Appears in Collections: 气候变化与战略
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作者单位: DiST, Dipartimento di Scienze e Tecnologie, Università degli Studi di Napoli “Parthenope”, Centro Direzionale Isola C4, Napoli, 80143, Italy; DiSTAR, Dipartimento di Scienze della Terra, dell'Ambiente e delle Risorse, Università degli Studi di Napoli Federico II, Complesso Universitario di Monte Sant'Angelo, via Cintia 21, Napoli, 80126, Italy
Recommended Citation:
Amodio S.,Barattolo F.,Martino M.. Carbonate ecosystem and environmental evolution during the Valanginian–Barremian: Discussion on possible controlling factors in the Apennine Carbonate Platform record (Italy)[J]. Cretaceous Research,2020-01-01,108