globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2015.08.027
论文题名:
Terrestrial Laser Scanner imaging for the cyclostratigraphy and astronomical tuning of the Ypresian-Lutetian pelagic section of Smirra (Umbria-Marche Basin, Italy)
作者: Franceschi M.; Penasa L.; Coccioni R.; Gattacceca J.; Smit J.; Cascella A.; Mariani S.; Montanari A.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 440
起始页码: 33
结束页码: 46
语种: 英语
英文关键词: Astrochronological time scale ; Biostratigraphy ; Cyclostratigraphy ; Magnetostratigraphy ; Terrestrial laser scanning ; Ypresian-Lutetian
英文摘要: Terrestrial laser scanner imaging is applied, together with calcimetry and lithofacies logging, for the cyclostratigraphic characterization of the Ypresian-Lutetian pelagites exposed in the Smirra section (Umbria-Marche Basin, Italy). The necessary chronostratigraphic framework is provided by detailed bio- and magnetostratigraphic analyses, which allow locating the Ypresian-Lutetian boundary in this section. Terrestrial laser scanner intensity is compared to carbonate content values obtained through calcimetric analyses carried out on samples taken from the same section, and is found to represent a good proxy for lithology in these pelagic homogenites. Time-series analysis highlights Milankovitch frequencies, particularly evident in the high-resolution terrestrial laser scanner intensity series. The recognition of distinctive low-frequency (>. 1. Myr) features in the amplitude oscillations of short eccentricity as well as its ~. 400. kyr modulation (long eccentricity), promote a tuning of the Smirra series using the most recent astronomic solution (La2010 nominal), which provides insights on the ages of the Y-L boundary and of the main biostratigraphic and magnetostratigraphic events in the Umbria-Marche Basin. Results confirm the value of high-resolution (mm-scale) terrestrial laser scanning for scrutinizing pelagite successions in search of low-frequency cycles that may help in the refinement of the astrochronological time scale. © 2015 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68771
Appears in Collections:过去全球变化的重建

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作者单位: Department of Geosciences, Università degli Studi di Padova, Via Gradenigo, 6, Padova, Italy; Dipartimento di Scienze della Terra, Della Vita e dell'Ambiente, Universita degli Studi di Urbino 'Carlo Bo', Campus Scientifico 'E. Mattei', Localita Crocicchia, Urbino, Italy; Jérôme Gattacceca, CEREGE, Aveneu Philibert, BP 80, Aix-en-Provence Cedex 4, France; Vrije Universiteit, Faculty of Earth and Life Sciences, de Boelelaan 1085, Amsterdam, Netherlands; Istituto Nazionale di Geofisica e Vulcanologia, Via della Faggiola 32, Pisa; Gruppo Speleologico CAI Fabriano, Via Alfieri 9, Fabriano, Italy; Osservatorio Geologico di Coldigioco, Apiro (MC), Italy

Recommended Citation:
Franceschi M.,Penasa L.,Coccioni R.,et al. Terrestrial Laser Scanner imaging for the cyclostratigraphy and astronomical tuning of the Ypresian-Lutetian pelagic section of Smirra (Umbria-Marche Basin, Italy)[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,440
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