气候变化领域集成服务门户(CCPortal): Chronology of Miocene terrestrial deposits and fossil vertebrates from Quebrada Honda (Bolivia)

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DOI	10.1016/j.palaeo.2020.110013
	Chronology of Miocene terrestrial deposits and fossil vertebrates from Quebrada Honda (Bolivia)
	Gibert L.; Deino A.; Valero L.; Anaya F.; Lería M.; Saylor B.; Croft D.A.
发表日期	2020
ISSN	0031-0182
卷号	560
英文摘要	At ~3500 m above sea level in the Eastern Andean Cordillera, Quebrada Honda Basin exposes more than 300 m of middle Miocene sedimentary strata, developed on distal alluvial fan sediments interstratified with volcanoclastic deposits, overlying Paleozoic basement. These deposits are rich in exotic vertebrate fauna adapted to a wetter and warmer climate at lower paleoelevation, as contrasted with the present high-elevation cold and dry Andean conditions. This study provides new magnetostratigraphic and 40Ar/39Ar age control of the Quebrada Honda, Río Rosario and Huayllajara fossiliferous areas, demonstrating that they are 13.1–12.4 Ma. Part of the succession evidences cyclical deposition of calcretes and reddish mudstones which may be a response to precessional orbital-forcing climatic processes. Paleomagnetic measurements show a significant clockwise tectonic rotation related to postdepositional tectonism, associated with evidence of an important uplift after the deposition of Quebrada Honda sediments. This uplift of the Andean Eastern Cordillera was associated with the formation of the Subandean fold-thrust belt and the development of the Amazon and La Plata drainage basins. Proposed uplift rates of >200 m/Ma are compatible with well-established rates of uplift recorded in contemporaneous alpine sections. © 2020 Elsevier B.V.
英文关键词	40Ar/39Ar; Andes; Eastern Cordillera; Paleomagnetism; Quebrada Honda; Serravallian
语种	英语
scopus关键词	alluvial deposit; alluvial fan; chronology; magnetostratigraphy; Paleozoic; sea level change; succession; tectonic rotation; Andes; Argentina; Bolivia; Buenos Aires [Argentina]; Cordillera Oriental [Andes]; La Plata; Rosario; Santa Fe [Argentina]; Vertebrata
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150285
作者单位	Dept. of Mineralogy, Petrology and Applied Geology, Barcelona University, Martí i Franqués, Barcelona, 08028, Spain; Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, United States; Departement des Sciences de la Terre, Université de Genève, Rue des Maraîchers, 13, Genève, 1205, Switzerland; Facultad de Ingeniería Geológica, Universidad Autónoma Tomás Frías, Av. Del Maestro s/n, Potosí, Bolivia; Departament de Dibuix, Universitat de Barcelona, C/Pau Margallo, 4, Barcelona, 08028, Spain; Department of Earth, Environmental and Planetary Sciences, Case Western Reserve University, Cleveland, OH, United States; Department of Anatomy, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106-4930, United States
推荐引用方式 GB/T 7714	Gibert L.,Deino A.,Valero L.,et al. Chronology of Miocene terrestrial deposits and fossil vertebrates from Quebrada Honda (Bolivia)[J],2020,560.
APA	Gibert L..,Deino A..,Valero L..,Anaya F..,Lería M..,...&Croft D.A..(2020).Chronology of Miocene terrestrial deposits and fossil vertebrates from Quebrada Honda (Bolivia).Palaeogeography, Palaeoclimatology, Palaeoecology,560.
MLA	Gibert L.,et al."Chronology of Miocene terrestrial deposits and fossil vertebrates from Quebrada Honda (Bolivia)".Palaeogeography, Palaeoclimatology, Palaeoecology 560(2020).