کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8868300 | 1622096 | 2018 | 71 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-diversity European palaeoflora favoured by early Pliocene warmth: New chronological constraints from the Caâ² Viettone section, NW Italy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
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چکیده انگلیسی
We present new chronological constraints for a reference European palaeoflora based on integrated stratigraphic, palaeobotanical, palaeomagnetic and micropalaeontological analysis carried out on the Pliocene section of Caâ² Viettone, northwestern Italy. This site is characterized by rich fossil plant records of high taxonomic diversity, good preservation, and varied taphonomic mode. Palaeofloral analysis shows that the Caâ² Viettone assemblage reflects a chronologically delimited and distinguishable stage of vegetation development in northern Italy (called Caâ² Viettone Florenkomplex). Palaeomagnetic analyses show a dominant normal polarity that, however, seems to be the result of a remagnetization process due to secondary oxidation. Layers with no evidence of oxidation have registered a reverse polarity, which likely represents the original magnetization of the sediments. These results, in combination with biochronological indications, suggest that deposition of the succession preceded the Gilbert-Gauss reversal and took place during the final part of the Gilbert chron. This confirms a late Zanclean age for the rich Caâ² Viettone palaeoflora and allows us to propose this locality both as reference for a regional Florenkomplex and as a representative example of terrestrial vegetation in Europe during the early Pliocene warm interval.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Palaeogeography, Palaeoclimatology, Palaeoecology - Volume 496, 1 May 2018, Pages 248-267
Journal: Palaeogeography, Palaeoclimatology, Palaeoecology - Volume 496, 1 May 2018, Pages 248-267
نویسندگان
Edoardo Martinetto, Evdokia Tema, Andrea Irace, Donata Violanti, Marco Ciuto, Elena Zanella,