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Article: Composition patterns of long-chain alkenones in lacustrine settings

TitleComposition patterns of long-chain alkenones in lacustrine settings
湖相长链烯酮的分布特征
Authors
KeywordsLong-chain alkenones
Lacustrine setting
Marine setting
Depositional environment
Issue Date2012
PublisherEditorial Dept of Journal of Earth Environment. The Journal's web site is located at http://jee.ieecas.cn/en/
Citation
地球环境学报, 2012, v. 3 n. 4, p. 942-949 How to Cite?
Journal of Earth Environment, 2012, v. 3 n. 4, p. 942-949 How to Cite?
AbstractLong-chain alkenones have been used widely for reconstructions of paleoclimatological and paleoenvironmental changes, especially in marine environments. Over the last few years, the number of reported cases with alkenones found in lacustrine settings has increased dramatically, providing great potential to be used for terrestrial environmental studies. Here we review the reported occurrences of alkenones from lakes in China and around the world. We then evaluate whether alkenone composition patterns in lakes are distinct from those in marine settings, by comparing their three features: (1) the presence of tetra-unsaturated C37 alkenone (C37:4), (2) the ratio of C37 over C38 contents (C37/C38), and (3) the lack of di- and tri-unsaturated methyl CC38 alkenones (C37:3ME and C38:2ME). We also discuss that in some cases confounding compounds in lacustrine samples could interfere with alkenone peaks and thus could affect the identification of composition patterns. We conclude that alkenone composition patterns in lacustrine settings indeed differ from those in open oceans, which could be used to indicate depositional environments.
Persistent Identifierhttp://hdl.handle.net/10722/185827
ISSN

 

DC FieldValueLanguage
dc.contributor.authorLiu, ZHen_US
dc.contributor.authorLiu, WGen_US
dc.date.accessioned2013-08-20T11:42:58Z-
dc.date.available2013-08-20T11:42:58Z-
dc.date.issued2012en_US
dc.identifier.citation地球环境学报, 2012, v. 3 n. 4, p. 942-949en_US
dc.identifier.citationJournal of Earth Environment, 2012, v. 3 n. 4, p. 942-949-
dc.identifier.issn1674-9901-
dc.identifier.urihttp://hdl.handle.net/10722/185827-
dc.description.abstractLong-chain alkenones have been used widely for reconstructions of paleoclimatological and paleoenvironmental changes, especially in marine environments. Over the last few years, the number of reported cases with alkenones found in lacustrine settings has increased dramatically, providing great potential to be used for terrestrial environmental studies. Here we review the reported occurrences of alkenones from lakes in China and around the world. We then evaluate whether alkenone composition patterns in lakes are distinct from those in marine settings, by comparing their three features: (1) the presence of tetra-unsaturated C37 alkenone (C37:4), (2) the ratio of C37 over C38 contents (C37/C38), and (3) the lack of di- and tri-unsaturated methyl CC38 alkenones (C37:3ME and C38:2ME). We also discuss that in some cases confounding compounds in lacustrine samples could interfere with alkenone peaks and thus could affect the identification of composition patterns. We conclude that alkenone composition patterns in lacustrine settings indeed differ from those in open oceans, which could be used to indicate depositional environments.-
dc.languageengen_US
dc.publisherEditorial Dept of Journal of Earth Environment. The Journal's web site is located at http://jee.ieecas.cn/en/-
dc.relation.ispartof地球环境学报en_US
dc.relation.ispartofJournal of Earth Environment-
dc.subjectLong-chain alkenones-
dc.subjectLacustrine setting-
dc.subjectMarine setting-
dc.subjectDepositional environment-
dc.titleComposition patterns of long-chain alkenones in lacustrine settingsen_US
dc.title湖相长链烯酮的分布特征-
dc.typeArticleen_US
dc.identifier.emailLiu, ZH: zhliu@hku.hken_US
dc.identifier.authorityLiu, ZH=rp00750en_US
dc.identifier.doi10.7515/JEE201204004-
dc.identifier.hkuros219539en_US
dc.identifier.volume3en_US
dc.identifier.issue4-
dc.identifier.spage942en_US
dc.identifier.epage949en_US
dc.publisher.placeChina-

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