Claypool continued: Extending the isotopic record of sedimentary sulfate
Abstract The Proterozoic Eon spans Earth's middle age during which many important
transitions occurred. These transitions include the oxygenation of the atmosphere …
transitions occurred. These transitions include the oxygenation of the atmosphere …
The Smithian/Spathian boundary (late Early Triassic): A review of ammonoid, conodont, and carbon-isotopic criteria
The transition from the Smithian substage to the Spathian substage of the Olenekian stage
of the late Early Triassic was a critical time marked by a series of biological and …
of the late Early Triassic was a critical time marked by a series of biological and …
Cooling-driven oceanic anoxia across the Smithian/Spathian boundary (mid-Early Triassic)
Abstract The Smithian/Spathian boundary (SSB) represents a major climatic-oceanic-biotic
event within the~ 5-Myr-long recovery interval of the Early Triassic following the end …
event within the~ 5-Myr-long recovery interval of the Early Triassic following the end …
Lipid biomarkers for the reconstruction of deep-time environmental conditions
Lipids can survive long geological intervals within sediments and provide a unique tool that
allows the reconstruction of past organismic diversity and environmental conditions. The …
allows the reconstruction of past organismic diversity and environmental conditions. The …
Frequent and intense fires in the final coals of the Paleozoic indicate elevated atmospheric oxygen levels at the onset of the End-Permian Mass Extinction Event
Z Yan, L Shao, IJ Glasspool, J Wang, X Wang… - International Journal of …, 2019 - Elsevier
Abstract During the End-Permian mass extinction event (EPME) there is extensive evidence
for depletion of oxygen in the marine realm. Atmospheric models based upon …
for depletion of oxygen in the marine realm. Atmospheric models based upon …
Records of carbon and sulfur cycling during the Silurian Ireviken Event in Gotland, Sweden
Abstract Early Silurian (∼ 431 Ma) carbonate rocks record a ca. 4.5‰ positive excursion in
the stable isotopic composition of carbonate carbon (δ 13 C carb). Associated with this …
the stable isotopic composition of carbonate carbon (δ 13 C carb). Associated with this …
Marine sulfur cycle evidence for upwelling and eutrophic stresses during Early Triassic cooling events
A Stebbins, TJ Algeo, L Krystyn, H Rowe… - Earth-Science …, 2019 - Elsevier
Perturbations to the global carbon and sulfur cycles recurred episodically throughout the~ 5-
Myr-long Early Triassic, in the aftermath of the end-Permian mass extinction, the largest …
Myr-long Early Triassic, in the aftermath of the end-Permian mass extinction, the largest …
Global-ocean circulation changes during the Smithian–Spathian transition inferred from carbon‑sulfur cycle records
Early Triassic marine ecosystems experienced multiple environmental perturbations and a
delayed biotic recovery following the end-Permian mass extinction. The Smithian–Spathian …
delayed biotic recovery following the end-Permian mass extinction. The Smithian–Spathian …
Multiple sulfur isotope signals associated with the late Smithian event and the Smithian/Spathian boundary
Abstract The Early Triassic is generally portrayed as a time of various, high ecological
stresses leading to a delayed biotic recovery after the devastating end-Permian mass …
stresses leading to a delayed biotic recovery after the devastating end-Permian mass …
Sulfur-isotope evidence for recovery of seawater sulfate concentrations from a PTB minimum by the Smithian-Spathian transition
A Stebbins, TJ Algeo, C Olsen, H Sano, H Rowe… - Earth-Science …, 2019 - Elsevier
Abstract The Smithian-Spathian substage boundary (SSB) in the Early Triassic was an
important time interval during the protracted recovery of marine faunas and ecosystems …
important time interval during the protracted recovery of marine faunas and ecosystems …