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dc.contributor.author
Khanolkar, Sonal
dc.contributor.author
Schiebel, Ralf
dc.contributor.author
Singh, Asmita
dc.contributor.author
Saraswati, Pratul K.
dc.contributor.author
Jochum, Klaus P.
dc.contributor.author
Weis, Ulrike
dc.contributor.author
Stoll, Brigitte
dc.contributor.author
Haug, Gerald H.
dc.date.accessioned
2021-04-07T15:37:33Z
dc.date.available
2021-04-07T03:06:03Z
dc.date.available
2021-04-07T15:37:33Z
dc.date.issued
2021-03
dc.identifier.issn
1525-2027
dc.identifier.other
10.1029/2020GC009443
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/477596
dc.identifier.doi
10.3929/ethz-b-000477596
dc.description.abstract
Amphistegina are common larger benthic foraminifer in coral reefs, with a nearly circumtropical distribution, and are major contributors to the CaCO3 budget of shallow marine environments. The family Amphisteginidae is dominant in Cenozoic carbonates. However, its potential as a proxy for paleoclimate reconstruction has not been completely explored. The intratest variability in trace elements of Amphistegina lessonii has been investigated using femtosecond‐laser ablation‐inductively coupled plasma‐mass spectrometry (fs‐LA‐ICP‐MS). We collected and analyzed adult specimens of A. lessonii in September 2003, November 2003, January 2004, and March 2004, from ∼2 m water depth in the coral reefs of Akajima, Okinawa, Japan. Tests of A. lessonii from these four collections were analyzed for Mg/Ca of the septa to observe Test Size‐Lifespan relationships. The lifespan of a specimen of A. lessonii of 1,200 µm in diameter is estimated at ∼3 and ∼2 months for specimens 900 µm in size. Over the estimated lifespans, Mg/Ca of individual specimens of A. lessonii is highly variable and displays co‐variation with temperature and tidal heights. Future projects may apply and further test this approach for the reconstruction of the tropical shallow marine paleoenvironments.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
American Geophysical Union
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Amphistegina lessonii
en_US
dc.subject
fs‐LA‐ICP‐MS
en_US
dc.subject
sea‐surface temperature
en_US
dc.subject
tidal heights
en_US
dc.subject
trace elements
en_US
dc.title
Intratest Variations in Trace Element Composition of Amphistegina lessonii Using Femtosecond‐Laser Ablation‐ICP‐Mass Spectrometry: A Field Study From Akajima, Okinawa Prefecture, Japan
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2021-01-17
ethz.journal.title
Geochemistry, Geophysics, Geosystems
ethz.journal.volume
22
en_US
ethz.journal.issue
3
en_US
ethz.journal.abbreviated
Geochem. geophys. geosyst.
ethz.pages.start
e2020GC009443
en_US
ethz.size
14 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.scopus
ethz.publication.place
Washington, DC
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2021-04-07T03:06:11Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-04-07T15:37:44Z
ethz.rosetta.lastUpdated
2021-04-07T15:37:44Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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