@article{7fa71b509df949ddb4e2818dbd527e9b,
title = "Shallow marine response to global climate change during the Paleocene-Eocene Thermal Maximum, Salisbury Embayment, USA",
abstract = "The Paleocene-Eocene Thermal Maximum (PETM) was an interval of extreme warmth that caused disruption of marine and terrestrial ecosystems on a global scale. Here we examine the sediments, flora, and fauna from an expanded section at Mattawoman Creek-Billingsley Road (MCBR) in Maryland and explore the impact of warming at a nearshore shallow marine (30–100 m water depth) site in the Salisbury Embayment. Observations indicate that at the onset of the PETM, the site abruptly shifted from an open marine to prodelta setting with increased terrestrial and fresh water input. Changes in microfossil biota suggest stratification of the water column and low-oxygen bottom water conditions in the earliest Eocene. Formation of authigenic carbonate through microbial diagenesis produced an unusually large bulk carbon isotope shift, while the magnitude of the corresponding signal from benthic foraminifera is similar to that at other marine sites. This proves that the landward increase in the magnitude of the carbon isotope excursion measured in bulk sediment is not due to a near instantaneous release of 12C-enriched CO2. We conclude that the MCBR site records nearshore marine response to global climate change that can be used as an analog for modern coastal response to global warming.",
author = "Self-Trail, {Jean M.} and Robinson, {Marci M.} and Bralower, {Timothy J.} and Sessa, {Jocelyn A.} and Hajek, {Elizabeth A.} and Kump, {Lee R.} and Trampush, {Sheila M.} and Willard, {Debra A.} and Edwards, {Lucy E.} and Powars, {David S.} and Wandless, {Gregory A.}",
note = "Funding Information: Funding for this study was provided by the USGS Climate and Land Use Change Research and Development Program, the USGS National Cooperative Geologic Mapping Program, and by National Science Foundation grant OCE-1416663. We are grateful to Tom Cronin and Jessica Rodysill for providing reviews of an early version of this manuscript. We acknowledge discussions with Allie Baczynski, Kate Freeman, Shelby Lyons, Peter Stassen, and Jim Zachos. Robert Speijer and an anonymous reviewer provided comments that greatly improved the manuscript. We are grateful to Mary Corey, Shannon Robinson, and the staff at Stream Valley Veterinary Hospital for use of their X-ray machine, to Amanda Fromer for foraminifera SEM imaging and plate production, to Peter Heaney for SEM and EDS assistance on siderite grains, to George Harlow at the AMNH for assistance with microdiffraction, and to Morgan Hill and Henry Towbin at the AMNH for CT scanning guidance. All data are included in the supporting information. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Publisher Copyright: {\textcopyright}2017. American Geophysical Union. All Rights Reserved.",
year = "2017",
month = jul,
doi = "10.1002/2017PA003096",
language = "English (US)",
volume = "32",
pages = "710--728",
journal = "Paleoceanography",
issn = "0883-8305",
publisher = "American Geophysical Union",
number = "7",
}
