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Reconstructed Seasonality During the Mid Pliocene Warm Interval and Early Pleistocene Cooling as Recorded in Oxygen Isotope Ratios from Shells of the Hard Clam, Mercenaria Spp.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Reconstructed Seasonality During the Mid Pliocene Warm Interval and Early Pleistocene Cooling as Recorded in Oxygen Isotope Ratios from Shells of the Hard Clam, Mercenaria Spp./
Author:	Braniecki, Garrett.
Description:	1 online resource (189 pages)
Notes:	Source: Masters Abstracts International, Volume: 84-03.
Contained By:	Masters Abstracts International84-03.
Subject:	Paleoclimate science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29261675click for full text (PQDT)
ISBN:	9798841742234

Reconstructed Seasonality During the Mid Pliocene Warm Interval and Early Pleistocene Cooling as Recorded in Oxygen Isotope Ratios from Shells of the Hard Clam, Mercenaria Spp.
Braniecki, Garrett.

Reconstructed Seasonality During the Mid Pliocene Warm Interval and Early Pleistocene Cooling as Recorded in Oxygen Isotope Ratios from Shells of the Hard Clam, Mercenaria Spp. - 1 online resource (189 pages)

Source: Masters Abstracts International, Volume: 84-03.

Thesis (M.S.)--The University of North Carolina at Chapel Hill, 2022.

Includes bibliographical references

The Mid Pliocene Warm Interval (MPWI) has been identified as an analogue for future global warming because it had warmer temperatures and higher atmospheric CO2 levels than today. The subsequent early Pleistocene cooling is more similar to modern climate. We compared seasonal climate variability during the MPWI and early Pleistocene to modern climate by utilizing seasonally resolved oxygen isotope proxy records of sea surface temperature (SST) recorded in shells of the ecologically and economically important bivalve, Mercenaria spp. Seasonal amplitude for the MPWI (~11±3°C) is reduced compared to modern instrument records (~16±3°C), while the early Pleistocene (~14±2°C) is similar to today. A −1.6‰ shift in mean stable carbon isotope ratios of fossil (0.92±0.66‰) and modern (−0.65±0.44‰) shells are consistent with anthropogenic burning of fossil fuels known as the "Suess Effect". Future work will focus on the novel clumped isotope proxy to better constrain seasonal SST and reconstruct δ18Oseawater values.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798841742234Subjects--Topical Terms:

3173835
Paleoclimate science.
Subjects--Index Terms:

Early PleistoceneIndex Terms--Genre/Form:

542853
Electronic books.

Reconstructed Seasonality During the Mid Pliocene Warm Interval and Early Pleistocene Cooling as Recorded in Oxygen Isotope Ratios from Shells of the Hard Clam, Mercenaria Spp.
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504 $a Includes bibliographical references
520 $a The Mid Pliocene Warm Interval (MPWI) has been identified as an analogue for future global warming because it had warmer temperatures and higher atmospheric CO2 levels than today. The subsequent early Pleistocene cooling is more similar to modern climate. We compared seasonal climate variability during the MPWI and early Pleistocene to modern climate by utilizing seasonally resolved oxygen isotope proxy records of sea surface temperature (SST) recorded in shells of the ecologically and economically important bivalve, Mercenaria spp. Seasonal amplitude for the MPWI (~11±3°C) is reduced compared to modern instrument records (~16±3°C), while the early Pleistocene (~14±2°C) is similar to today. A −1.6‰ shift in mean stable carbon isotope ratios of fossil (0.92±0.66‰) and modern (−0.65±0.44‰) shells are consistent with anthropogenic burning of fossil fuels known as the "Suess Effect". Future work will focus on the novel clumped isotope proxy to better constrain seasonal SST and reconstruct δ18Oseawater values.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Paleoclimate science. $3 3173835
650 4 $a Biological oceanography. $3 2122748
650 4 $a Paleontology. $3 518862
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653 $a Stable isotope ratios
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710 2 $a The University of North Carolina at Chapel Hill. $b Geological Sciences. $3 1035690
773 0 $t Masters Abstracts International $g 84-03.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29261675 $z click for full text (PQDT)