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James C. Zachos

University of California, Santa Cruz · US
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Area of research
Atmospheric Science · Ecology
Research interest
Research interests include Geology and Paleoclimatology Research, Isotope Analysis in Ecology, Paleontology and Stratigraphy of Fossils, and Methane Hydrates and Related Phenomena.
h-index
99
citations
46,725
works
648
NIH funding
primary concept
Geology
email

Recent publications

Continuous Sediment Sourcing and Changes in Weathering During the PETM in the Salisbury Embayment
Paleoceanography and Paleoclimatology 2025cited by 2position: middledoi
Continuous Sediment Sourcing and Changes in Weathering During the PETM in the Salisbury Embayment
Paleoceanography and Paleoclimatology 2025cited by 2position: contributordoi
Oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum
Science 2024cited by 27position: middledoi
Long- and short-term coupling of sea surface temperature and atmospheric CO <sub>2</sub> during the late Paleocene and early Eocene
Proceedings of the National Academy of Sciences 2024cited by 10position: lastdoi
Oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum.
2024cited by 7position: contributordoi
Long- and short-term coupling of sea surface temperature and atmospheric CO<sub>2</sub> during the late Paleocene and early Eocene.
2024cited by 3position: contributordoi
Foraminifera nitrogen isotopes and body size reveal an oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum (PETM)
2024cited by 0position: middledoi
Toward a Cenozoic history of atmospheric CO <sub>2</sub>
Science 2023cited by 183position: middledoi
Toward a Cenozoic history of atmospheric CO<sub>2</sub>.
2023cited by 37position: contributordoi
North Atlantic Drift Sediments Constrain Eocene Tidal Dissipation and the Evolution of the Earth‐Moon System
Paleoceanography and Paleoclimatology 2023cited by 14position: middledoi
Surface ocean warming and acidification driven by rapid carbon release precedes Paleocene-Eocene Thermal Maximum
Science Advances 2022cited by 54position: lastdoi
Shelf Ecosystems Along the U.S. Atlantic Coastal Plain Prior to and During the Paleocene‐Eocene Thermal Maximum: Insights Into the Stratigraphic Architecture
Paleoceanography and Paleoclimatology 2022cited by 16position: contributordoi
Surface ocean warming and acidification driven by rapid carbon release precedes Paleocene-Eocene Thermal Maximum.
2022cited by 9position: contributordoi
An astronomically dated record of Earth’s climate and its predictability over the last 66 million years
Science 2020cited by 2,080position: lastdoi
On impact and volcanism across the Cretaceous-Paleogene boundary
Science 2020cited by 338position: lastdoi
An astronomically dated record of Earth's climate and its predictability over the last 66 million years.
2020cited by 334position: contributordoi
On impact and volcanism across the Cretaceous-Paleogene boundary.
2020cited by 57position: contributordoi
A Warm, Stratified, and Restricted Labrador Sea Across the Middle Eocene and Its Climatic Optimum
Paleoceanography and Paleoclimatology 2020cited by 27position: middledoi
The Habitat of the Nascent Chicxulub Crater
AGU Advances 2020cited by 18position: contributordoi
Enhanced Poleward Flux of Atmospheric Moisture to the Weddell Sea Region (ODP Site 690) During the Paleocene‐Eocene Thermal Maximum
Paleoceanography and Paleoclimatology 2020cited by 8position: contributordoi
The Coupled Evolution of Temperature and Carbonate Chemistry during the Paleocene–Eocene; New Orbital-Resolution Trace Metal Records from the Low-Latitude Indian Ocean
2020cited by 0position: contributordoi
The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database
Geoscientific model development 2019cited by 251position: middledoi
A High‐Fidelity Benthic Stable Isotope Record of Late Cretaceous–Early Eocene Climate Change and Carbon‐Cycling
Paleoceanography and Paleoclimatology 2019cited by 129position: contributordoi
The DeepMIP contribution to PMIP4: methodologies for selection, compilation and analysis of latest Paleocene and early Eocene climate proxy data, incorporating version 0.1 of the DeepMIP database
2019cited by 43position: middledoi
Orbitally Paced Carbon and Deep‐Sea Temperature Changes at the Peak of the Early Eocene Climatic Optimum
Paleoceanography and Paleoclimatology 2018cited by 65position: middledoi
Astronomical calibration of the Ypresian timescale: implications for seafloor spreading rates and the chaotic behavior of the solar system?
Climate of the past 2017cited by 170position: middledoi
The DeepMIP contribution to PMIP4: experimental design for model simulations of the EECO, PETM, and pre-PETM (version 1.0)
Geoscientific model development 2017cited by 151position: middledoi
Eocene temperature gradients
Nature Geoscience 2017cited by 56position: lastdoi
Subtropical sea-surface warming and increased salinity during Eocene Thermal Maximum 2
Geology 2017cited by 32position: lastdoi
Environmental impact and magnitude of paleosol carbonate carbon isotope excursions marking five early Eocene hyperthermals in the Bighorn Basin, Wyoming
Climate of the past 2016cited by 70position: middledoi

Grants

Collaborative Research: NSFGEO-NERC: C-FORCE Carbon-Cycle Feedbacks from Response to Carbon Emissions
NSF2244896$303,6422022–2027PIRePORTER
Accomplishment Based Renewal: Intensification of the Hydrologic Cycle during the Paleocene-Eocene Thermal Maximum
NSF2103513$395,3762021–2026PIRePORTER
Collaborative Research: An Eocene perspective on future recovery rates of climate and ocean chemistry
NSF1658017$262,1522017–2023PIRePORTER
Ocean Acidification: Collaborative Research: The response of calcareous nannoplankton to ocean acidification during the Paleocene-Eocene thermal maximum
NSF1415958$277,1922014–2017PIRePORTER
Collaborative Research: Eocene Orbital-scale Oceanographic Variability in the North Atlantic: Inferences from Expedition 342 Cores
NSF1334209$103,0002013–2016PIRePORTER
Ocean Acidification: Collaborative Research: Establishing The Magnitude Of Sea-Surface Acidification During The Paleocene-Eocene Thermal Maximum
NSF1220615$319,2032012–2017PIRePORTER
An Astronomically-tuned High Resolution Benthic Isotope Stratigraphy for the Late Paleocene and Early Eocene
NSF0959117$180,0002010–2013PIRePORTER
Collaborative Research: Reconstructing deep sea acidification during the Paleocene-Eocene Thermal Maximum
NSF0903014$244,9892009–2012PIRePORTER
Acquisition of a Gas Source Mass Spectrometer and Carbonate Preparation Device
NSF0824978$419,4802008–2013PIRePORTER
Collaborative Research: Dynamics of carbon release and sequestration: Case studies of two early Eocene hyperthermals
NSF0628719$419,5002006–2011PIRePORTER
Antarctic and Southern Ocean Climate Instability during the Middle Eocene "Greenhouse" to "Icehouse" Transition
NSF0338337$97,2942004–2006PIRePORTER
Collaborative Proposal: SHALDRIL - A Demonstration Drilling Cruise to the James Ross Basin
NSF0125562$67,8802002–2007PIRePORTER
BIOCOMPLEXITY: Consequences of Greenhouse Warming for Biocomplexity and Biogeochemical Cycles: A Multidisciplinary Case Study Across the Paleocene-Eocene Boundary
NSF0120727$2,498,3922001–2007PIRePORTER
The Role of Orbital Forcing in Periodic and Non-Periodic Climate Change During the Late Oligocene and Early and Middle Miocene
NSF0117532$142,0002001–2006PIRePORTER
COLLABORATIVE RESEARCH: Towards a Milankovitch-Scale Stable Isotope Stratigraphy of the Late Oligocene to early Miocene
NSF9725789$113,9911998–2001PIRePORTER
NSF Young Investigator
NSF9458367$157,0501994–2000PIRePORTER
GRGC: Coll Resc: Climatic & Environmental Response of the Western Equatorial Pacific to Long & Short-Term Global Warming in the Lake Paleocene and Early Eocene
NSF9406099$134,7121994–1997PIRePORTER
Acquisition of a Gas-Source Ratio Mass Spectrometer For a New Marine and Earth Sciences Light Stable Isotope Facility at the University of California, Santa Cruz.
NSF9223070$168,7381993–1996PIRePORTER
COLLABORATIVE RESEARCH: Chronostratigraphy and Paleoclimate of the Palocene-Eocene Boundary in the Big Horn Basin: An Isotopic Approach
NSF9396045$22,7221992–1995PIRePORTER
Earliest Oligocene Climate Transition and the Dynamics of Continental Ice Sheet Evolution: Constraints from High Resolution (10 4 Yr) Deep-Sea Foraminifera
NSF9396033$2,4901992–1995PIRePORTER
Earliest Oligocene Climate Transition and the Dynamics of Continental Ice Sheet Evolution: Constraints from High Resolution (10 4 Yr) Deep-Sea Foraminifera
NSF9101861$142,7211991–1992PIRePORTER
COLLABORATIVE RESEARCH: Chronostratigraphy and Paleoclimate of the Palocene-Eocene Boundary in the Big Horn Basin: An Isotopic Approach
NSF9105147$37,3001991–1992PIRePORTER
High Resolution Paleogene Latitudinal and Vertical Temperature Gradients of the Indian Ocean
NSF9012389$110,8431990–1992PIRePORTER

Frequent collaborators

· 9 papers (2019–2025)Lucas Joost Lourens · University of Applied Sciences Utrecht6 papers (2015–2020)Appy Sluijs · Utrecht University6 papers (2012–2020)Vittoria Lauretano · University of Bristol5 papers (2015–2020)Thomas Westerhold · University of Padua4 papers (2017–2023) · 4 papers (2012–2024)Richard D. Norris · Scripps Institution of Oceanography4 papers (2012–2024)Heiko Pälike · Universidad de Salamanca3 papers (2012–2023)Claudia Agnini · University of Padua3 papers (2017–2023)Gavin L. Foster · National Oceanography Centre3 papers (2012–2022)Dustin T. Harper · University of Utah3 papers (2017–2024)Bärbel Hönisch · Earth Island Institute3 papers (2012–2024)Ellen Thomas · Wesleyan University3 papers (2012–2024)Donald E. Penman · Columbia University3 papers (2022–2024)Donald E. Penman · Utah State University3 papers (2020–2024)Ursula Röhl · University of Bremen3 papers (2017–2020) · 2 papers (2024–2024)Ralf Schiebel · University of Southampton2 papers (2024–2024)Marcel Polling · Utrecht University2 papers (2015–2020)Samantha J. Gibbs · University of Southampton2 papers (2012–2012)
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