Aspartic acid racemisation dating of mid-Holocene to recent estuarine sedimentation in New South Wales, Australia: a pilot study
The degree of aspartic acid racemisation measured in radiocarbon-dated specimens of fossil estuarine molluscs, collected from Lake Illawarra, a Holocene barrier estuary in New South Wales, Australia, is evaluated in the context of results of laboratory-induced racemisation established in heating (si...
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| Veröffentlicht in: | Marine geology 2004-11, Vol.212 (1), p.45-59 |
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| creator | Sloss, C.R. Murray-Wallace, C.V. Jones, B.G. Wallin, T. |
| description | The degree of aspartic acid racemisation measured in radiocarbon-dated specimens of fossil estuarine molluscs, collected from Lake Illawarra, a Holocene barrier estuary in New South Wales, Australia, is evaluated in the context of results of laboratory-induced racemisation established in heating (simulated ageing) experiments. The general kinetic trend of aspartic acid racemisation in both heating experiments and fossil molluscs
Anadara trapezia and
Notospisula trigonella conforms to a model of apparent parabolic kinetics. Using the apparent parabolic kinetic model, numeric ages based on the degree of aspartic acid racemisation in the fossil molluscs have been calculated.
An aminostratigraphy of the Lake Illawarra Holocene basin fill has been established based on the extent of aspartic acid racemisation measured in 29 specimens of fossil molluscs. Aspartic acid
d/
l ratios in
A. trapezia and
N. trigonella range from 0.079±0.005 to 0.436±0.004, representing an age range from |
| doi_str_mv | 10.1016/j.margeo.2004.07.009 |
| format | Article |
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Anadara trapezia and
Notospisula trigonella conforms to a model of apparent parabolic kinetics. Using the apparent parabolic kinetic model, numeric ages based on the degree of aspartic acid racemisation in the fossil molluscs have been calculated.
An aminostratigraphy of the Lake Illawarra Holocene basin fill has been established based on the extent of aspartic acid racemisation measured in 29 specimens of fossil molluscs. Aspartic acid
d/
l ratios in
A. trapezia and
N. trigonella range from 0.079±0.005 to 0.436±0.004, representing an age range from <50 to ca. 5750 years. The aspartic acid chronology has been used to quantify rates of sedimentation within Lake Illawarra over the course of the Holocene and since European settlement. The data indicate that, for much of Lake Illawarra, the rate of sedimentation during Holocene time was <1 mm/year. Following European settlement within the surrounding drainage basin, rates of sedimentation increased significantly to 2.6–7 mm/year.</description><identifier>ISSN: 0025-3227</identifier><identifier>EISSN: 1872-6151</identifier><identifier>DOI: 10.1016/j.margeo.2004.07.009</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>aminostratigraphy ; Brackish ; estuarine bivalves ; radiocarbon dating ; sedimentation rates</subject><ispartof>Marine geology, 2004-11, Vol.212 (1), p.45-59</ispartof><rights>2004 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a358t-1cd4e244689d3f2f3230a29d3201fecd1306bf75a409caf2299dd294998f46373</citedby><cites>FETCH-LOGICAL-a358t-1cd4e244689d3f2f3230a29d3201fecd1306bf75a409caf2299dd294998f46373</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S002532270400221X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>Sloss, C.R.</creatorcontrib><creatorcontrib>Murray-Wallace, C.V.</creatorcontrib><creatorcontrib>Jones, B.G.</creatorcontrib><creatorcontrib>Wallin, T.</creatorcontrib><title>Aspartic acid racemisation dating of mid-Holocene to recent estuarine sedimentation in New South Wales, Australia: a pilot study</title><title>Marine geology</title><description>The degree of aspartic acid racemisation measured in radiocarbon-dated specimens of fossil estuarine molluscs, collected from Lake Illawarra, a Holocene barrier estuary in New South Wales, Australia, is evaluated in the context of results of laboratory-induced racemisation established in heating (simulated ageing) experiments. The general kinetic trend of aspartic acid racemisation in both heating experiments and fossil molluscs
Anadara trapezia and
Notospisula trigonella conforms to a model of apparent parabolic kinetics. Using the apparent parabolic kinetic model, numeric ages based on the degree of aspartic acid racemisation in the fossil molluscs have been calculated.
An aminostratigraphy of the Lake Illawarra Holocene basin fill has been established based on the extent of aspartic acid racemisation measured in 29 specimens of fossil molluscs. Aspartic acid
d/
l ratios in
A. trapezia and
N. trigonella range from 0.079±0.005 to 0.436±0.004, representing an age range from <50 to ca. 5750 years. The aspartic acid chronology has been used to quantify rates of sedimentation within Lake Illawarra over the course of the Holocene and since European settlement. The data indicate that, for much of Lake Illawarra, the rate of sedimentation during Holocene time was <1 mm/year. Following European settlement within the surrounding drainage basin, rates of sedimentation increased significantly to 2.6–7 mm/year.</description><subject>aminostratigraphy</subject><subject>Brackish</subject><subject>estuarine bivalves</subject><subject>radiocarbon dating</subject><subject>sedimentation rates</subject><issn>0025-3227</issn><issn>1872-6151</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLLDEQhYMoOD7-gYus7spuK0k_70IYxBeILlRchphUNENPZ0zSijt_upF27aoOxTmHqo-QIwYlA9acrMq1Ci_oSw5QldCWAP0WWbCu5UXDarZNFgC8LgTn7S7Zi3EFAEwwviBfy7hRITlNlXaGBqVx7aJKzo_U5DG-UG_p2pniyg9e44g0eRowq0QxpkkFl3cRjVvn1Rx0I73FD3rvp_RKn9SA8Zgup5iCGpz6TxXduMEnmtPm84DsWDVEPPyd--Tx4vzh7Kq4ubu8PlveFErUXSqYNhXyqmq63gjLreACFM-aA7OoDRPQPNu2VhX0WlnO-94Y3ld939mqEa3YJ__m3k3wb1O-XOY_NQ6DGtFPUbK2YYx1dTZWs1EHH2NAKzfBZb6fkoH8wS1XcsYtf3BLaGXGnWOncwzzE-8Og4za4agzmEwrSePd3wXfZViMIg</recordid><startdate>20041130</startdate><enddate>20041130</enddate><creator>Sloss, C.R.</creator><creator>Murray-Wallace, C.V.</creator><creator>Jones, B.G.</creator><creator>Wallin, T.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope></search><sort><creationdate>20041130</creationdate><title>Aspartic acid racemisation dating of mid-Holocene to recent estuarine sedimentation in New South Wales, Australia: a pilot study</title><author>Sloss, C.R. ; Murray-Wallace, C.V. ; Jones, B.G. ; Wallin, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a358t-1cd4e244689d3f2f3230a29d3201fecd1306bf75a409caf2299dd294998f46373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>aminostratigraphy</topic><topic>Brackish</topic><topic>estuarine bivalves</topic><topic>radiocarbon dating</topic><topic>sedimentation rates</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sloss, C.R.</creatorcontrib><creatorcontrib>Murray-Wallace, C.V.</creatorcontrib><creatorcontrib>Jones, B.G.</creatorcontrib><creatorcontrib>Wallin, T.</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Marine geology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sloss, C.R.</au><au>Murray-Wallace, C.V.</au><au>Jones, B.G.</au><au>Wallin, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Aspartic acid racemisation dating of mid-Holocene to recent estuarine sedimentation in New South Wales, Australia: a pilot study</atitle><jtitle>Marine geology</jtitle><date>2004-11-30</date><risdate>2004</risdate><volume>212</volume><issue>1</issue><spage>45</spage><epage>59</epage><pages>45-59</pages><issn>0025-3227</issn><eissn>1872-6151</eissn><abstract>The degree of aspartic acid racemisation measured in radiocarbon-dated specimens of fossil estuarine molluscs, collected from Lake Illawarra, a Holocene barrier estuary in New South Wales, Australia, is evaluated in the context of results of laboratory-induced racemisation established in heating (simulated ageing) experiments. The general kinetic trend of aspartic acid racemisation in both heating experiments and fossil molluscs
Anadara trapezia and
Notospisula trigonella conforms to a model of apparent parabolic kinetics. Using the apparent parabolic kinetic model, numeric ages based on the degree of aspartic acid racemisation in the fossil molluscs have been calculated.
An aminostratigraphy of the Lake Illawarra Holocene basin fill has been established based on the extent of aspartic acid racemisation measured in 29 specimens of fossil molluscs. Aspartic acid
d/
l ratios in
A. trapezia and
N. trigonella range from 0.079±0.005 to 0.436±0.004, representing an age range from <50 to ca. 5750 years. The aspartic acid chronology has been used to quantify rates of sedimentation within Lake Illawarra over the course of the Holocene and since European settlement. The data indicate that, for much of Lake Illawarra, the rate of sedimentation during Holocene time was <1 mm/year. Following European settlement within the surrounding drainage basin, rates of sedimentation increased significantly to 2.6–7 mm/year.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.margeo.2004.07.009</doi><tpages>15</tpages></addata></record> |
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| ispartof | Marine geology, 2004-11, Vol.212 (1), p.45-59 |
| issn | 0025-3227 1872-6151 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | aminostratigraphy Brackish estuarine bivalves radiocarbon dating sedimentation rates |
| title | Aspartic acid racemisation dating of mid-Holocene to recent estuarine sedimentation in New South Wales, Australia: a pilot study |
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