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Article: High-precision 40Ar/39Ar age for the Jehol Biota

TitleHigh-precision 40Ar/39Ar age for the Jehol Biota
Authors
Keywords40Ar/39Ar geochronology
Cretaceous
Jehol Biota
Jiufotang Formation
Tuchengzi Formation
Issue Date2009
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/palaeo
Citation
Palaeogeography, Palaeoclimatology, Palaeoecology, 2009, v. 280 n. 1-2, p. 94-104 How to Cite?
Abstract
Abundant fossils of the terrestrial Jehol Biota, including plants, insects, dinosaurs, birds, mammals and freshwater invertebrates, were discovered from the Yixian Formation and the overlying Jiufotang Formation in Inner Mongolia, Hebei Province and Liaoning Province, northeastern China. Because of the exceptional preservation of fossils, the Jehol Biota is one of the most important Mesozoic lagerstätten and is referred to as a "Mesozoic Pompeii". The Jehol Biota has provided a rare opportunity to address questions about the origin of birds, the evolution of feathers and flight, the early diversification of angiosperms and the timing of placental mammal radiation. Six tuff samples and two basalt samples collected from the Tuchengzi, the Yixian and the Jiufotang formations near the classic outcrops in western Liaoning, NE China yielded high-precision 40Ar/39Ar ages. We obtain an age of 129.7 ± 0.5 Ma for a basaltic lava from the bottom of the Yixian Formation and an age of 122.1 ± 0.3 Ma for a tuff from the lowermost part of the overlying Jiufotang Formation. Our age results provide an age calibration of the whole Yixian Formation and show that the whole formation was deposited entirely within Early Cretaceous time over an interval of ~ 7 Ma. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/132844
ISSN
2013 Impact Factor: 2.752
2013 SCImago Journal Rankings: 1.547
ISI Accession Number ID
Funding AgencyGrant Number
National Science Foundation of China40872015
Ann and Gordon Getty Foundation
Leroy Hill Opportunity Fund
Funding Information:

This research was supported by the National Science Foundation of China (40872015), the Ann and Gordon Getty Foundation, and the Leroy Hill Opportunity Fund. We thank Pei-ji Chen for suggesting the sampling locations and Tim Becker for mass spectrometry assistance. We thank Paul M. Barrett and an anonymous reviewer for their constructive comments. S. Chang thanks her dissertation committee member Prof. Kevin Padian for his comments.

 

DC FieldValueLanguage
dc.contributor.authorChang, Scen_HK
dc.contributor.authorZhang, Hen_HK
dc.contributor.authorRenne, PRen_HK
dc.contributor.authorFang, Yen_HK
dc.date.accessioned2011-04-04T06:21:53Z-
dc.date.available2011-04-04T06:21:53Z-
dc.date.issued2009en_HK
dc.identifier.citationPalaeogeography, Palaeoclimatology, Palaeoecology, 2009, v. 280 n. 1-2, p. 94-104en_HK
dc.identifier.issn0031-0182en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132844-
dc.description.abstractAbundant fossils of the terrestrial Jehol Biota, including plants, insects, dinosaurs, birds, mammals and freshwater invertebrates, were discovered from the Yixian Formation and the overlying Jiufotang Formation in Inner Mongolia, Hebei Province and Liaoning Province, northeastern China. Because of the exceptional preservation of fossils, the Jehol Biota is one of the most important Mesozoic lagerstätten and is referred to as a "Mesozoic Pompeii". The Jehol Biota has provided a rare opportunity to address questions about the origin of birds, the evolution of feathers and flight, the early diversification of angiosperms and the timing of placental mammal radiation. Six tuff samples and two basalt samples collected from the Tuchengzi, the Yixian and the Jiufotang formations near the classic outcrops in western Liaoning, NE China yielded high-precision 40Ar/39Ar ages. We obtain an age of 129.7 ± 0.5 Ma for a basaltic lava from the bottom of the Yixian Formation and an age of 122.1 ± 0.3 Ma for a tuff from the lowermost part of the overlying Jiufotang Formation. Our age results provide an age calibration of the whole Yixian Formation and show that the whole formation was deposited entirely within Early Cretaceous time over an interval of ~ 7 Ma. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/palaeoen_HK
dc.relation.ispartofPalaeogeography, Palaeoclimatology, Palaeoecologyen_HK
dc.subject40Ar/39Ar geochronology-
dc.subjectCretaceous-
dc.subjectJehol Biota-
dc.subjectJiufotang Formation-
dc.subjectTuchengzi Formation-
dc.titleHigh-precision 40Ar/39Ar age for the Jehol Biotaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0031-0182&volume=280&spage=94&epage=104&date=Sep&atitle=High-precision+40Ar/39Ar+age+for+the+Jehol+Biota-
dc.identifier.emailChang, SC: suchin@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.palaeo.2009.06.021en_HK
dc.identifier.scopuseid_2-s2.0-68549095959en_HK
dc.identifier.hkuros216718-
dc.identifier.volume280en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage94en_HK
dc.identifier.epage104en_HK
dc.identifier.eissn1872-616X-
dc.identifier.isiWOS:000269990600007-
dc.publisher.placeNetherlandsen_HK
dc.identifier.citeulike5519809-

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