Improved Os‐isotope stratigraphy of the Arctic Ocean
A Poirier, C Hillaire‐Marcel - Geophysical Research Letters, 2011 - Wiley Online Library
The history of the Arctic Ocean remained poorly known until the 2004 IODP coring of
Lomonosov Ridge sediments. Early studies of the recovered sequence demonstrated the …
Lomonosov Ridge sediments. Early studies of the recovered sequence demonstrated the …
Late Barremian/early Aptian Re–Os age of the Ipubi Formation black shales: Stratigraphic and paleoenvironmental implications for Araripe Basin, northeastern Brazil
Abstract The Ipubi Formation of the Santana Group, Araripe Basin, Brazil, is characterized by
black shales and overlying evaporite deposits and is suggested to record the transition from …
black shales and overlying evaporite deposits and is suggested to record the transition from …
Hot acidic Late Permian seas stifle life in record time
The end of Permian time (252–251Ma) hosts the largest mass extinction in Earth history, yet
events heralding this global catastrophe remain intensely disputed. We present a …
events heralding this global catastrophe remain intensely disputed. We present a …
Osmium isotope stratigraphy
B Peucker-Ehrenbrink, GE Ravizza - Geologic Time Scale 2020, 2020 - Elsevier
This chapter presents the currently available 187 Os/188 Os seawater data and emphasizes
some of the challenges involved in reconstructing the seawater record from the present to …
some of the challenges involved in reconstructing the seawater record from the present to …
[HTML][HTML] Exploring the long-term Cenozoic Arctic Ocean climate history: a challenge within the International Ocean Discovery Program (IODP)
The global climate evolution during Cenozoic times is characterized by the transformation
from warm Paleogene oceans with low latitudinal and bathymetric thermal gradients into the …
from warm Paleogene oceans with low latitudinal and bathymetric thermal gradients into the …
Geochemical evidence for volcanic activity prior to and enhanced terrestrial weathering during the Paleocene Eocene Thermal Maximum
R Wieczorek, MS Fantle, LR Kump… - … et Cosmochimica Acta, 2013 - Elsevier
Abstract The Re–Os and major element geochemistry of an expanded gray shale sequence
from the Central Basin in Spitsbergen, Svalbard Archipelago (Norway) over the Paleocene …
from the Central Basin in Spitsbergen, Svalbard Archipelago (Norway) over the Paleocene …
[HTML][HTML] Threshold in North Atlantic-Arctic Ocean circulation controlled by the subsidence of the Greenland-Scotland Ridge
High latitude ocean gateway changes are thought to play a key role in Cenozoic climate
evolution. However, the underlying ocean dynamics are poorly understood. Here we use a …
evolution. However, the underlying ocean dynamics are poorly understood. Here we use a …
Application of the 187Re-187Os geochronometer to crustal materials: Systematics, methodology, data reporting, and interpretation
The rhenium-osmium (187Re-187Os) system is a highly versatile chronometer that is
regularly applied to a wide range of geological and extraterrestrial materials. In addition to …
regularly applied to a wide range of geological and extraterrestrial materials. In addition to …
Chemical signals for oxidative weathering predict Re–Os isochroneity in black shales, East Greenland
Re and Os isotopes in shales are increasingly used for precise and accurate geochronology
and for tracking rates of continental weathering in the geologic past. Moreover, trace …
and for tracking rates of continental weathering in the geologic past. Moreover, trace …
Quantifying seawater exchange rates in the Eocene Arctic Basin using osmium isotopes
AJ Dickson, M Davies, ML Bagard… - Geochemical …, 2022 - oro.open.ac.uk
The closure of seaways that connected the Arctic Ocean to the global ocean during the early
Paleogene led to severe hydrographic restriction. We present new osmium isotope data …
Paleogene led to severe hydrographic restriction. We present new osmium isotope data …