globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-013-0969-2
Scopus记录号: 2-s2.0-84894249164
论文题名:
Insight into the development of a carbonate platform through a multi-disciplinary approach: A case study from the Upper Devonian slope deposits of Mount Freikofel (Carnic Alps, Austria/Italy)
作者: Pas D.; Da Silva A.-C.; Suttner T.; Kido E.; Bultynck P.; Pondrelli M.; Corradini C.; De Vleeschouwer D.; Dojen C.; Boulvain F.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 103, 期:2
起始页码: 519
结束页码: 538
语种: 英语
英文关键词: Carbonate platform ; Cellon-Kellerwand Nappe ; Geochemistry ; Magnetic susceptibility ; Mid-Late Devonian ; Stable carbon isotope
英文摘要: The development and behavior of million year-scaled depositional sequences recorded within Palaeozoic carbonate platform has remained poorly examined. Therefore, the understanding of palaeoenvironmental changes that occur in geological past is still limited. We herein undertake a multi-disciplinary approach (sedimentology, conodont biostratigraphy, magnetic susceptibility (MS), and geochemistry) of a long-term succession in the Carnic Alps, which offers new insights into the peculiar evolution of one of the best example of Palaeozoic carbonate platform in Europe. The Freikofel section, located in the central part of the Carnic Alps, represents an outstanding succession in a fore-reef setting, extending from the Latest Givetian (indet. falsiovalis conodont zones) to the Early Famennian (Lower crepida conodont zone). Sedimentological analysis allowed to propose a sedimentary model dominated by distal slope and fore-reef-slope deposits. The most distal setting is characterized by an autochthonous pelagic sedimentation showing local occurrence of thin-bedded turbiditic deposits. In the fore-reef slope, in a more proximal setting, there is an accumulation of various autochthonous and allochthonous fine- to coarse-grained sediments originated from the interplay of gravity-flow currents derived from the shallow-water and deepwater area. The temporal evolution of microfacies in the Freikofel section evolves in two main steps corresponding to the Freikofel (Unit 1) and the Pal (Unit 2) limestones. Distal slope to fore-reef lithologies and associate changes are from base to top of the section: (U1) thick bedded litho- and bioclastic breccia beds with local fining upward sequence and fine-grained mudstone intercalations corresponding, in the fore-reef setting, to the dismantlement of the Eifelian-Frasnian carbonate platform during the Early to Late Frasnian time (falsiovalis to rhenana superzones) with one of the causes being the Late Givetian major rift pulse; (U2) occurrence of thin-bedded red nodular and cephalopod-bearing limestones with local lithoclastic grainstone intercalations corresponding to a significant deepening of the area and the progressive withdrawal of sedimentary influxes toward the basin, in relation with Late Frasnian sea-level rise. MS and geochemical analyses were also performed along the Freikofel section and demonstrate the inherent parallel link existing between variation in MS values and proxy for terrestrial input. Interpretation of MS in terms of palaeoenvironmental processes reflects that even though distality remains the major parameter influencing MS values, carbonate production and water agitation also play an important role. © 2013 Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894249164&doi=10.1007%2fs00531-013-0969-2&partnerID=40&md5=d6f446175cb8f46447f12b6cc30801ee
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70407
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Sedimentary Petrology, B20, University of Liège (ULg), Sart-Tilman, 4000 Liège, Belgium; Institute for Earth Sciences (Geology and Paleontology), University of Graz, Heinrichstrasse 26, 8010 Graz, Austria; Department of Paleontology, Royal Belgian Institute of Natural Sciences, Rue Vautier 29, 1000 Brussels, Belgium; Dipartimento di Ingegneria e Geologia, International Research School of Planetary Sciences, Università d'Annunzio, viale Pindaro 42, 65127 Pescara, Italy; Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, via Trentino 51, 09127 Cagliari, Italy; Earth System Science, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium; Landesmuseum für Kärnten, Museumsgasse 2, 9021 Klagenfurt, Austria

Recommended Citation:
Pas D.,Da Silva A.-C.,Suttner T.,et al. Insight into the development of a carbonate platform through a multi-disciplinary approach: A case study from the Upper Devonian slope deposits of Mount Freikofel (Carnic Alps, Austria/Italy)[J]. International Journal of Earth Sciences,2014-01-01,103(2)
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