Astronomical time scale for the Paleozoic Era
Milankovitch cycles are quasi-periodic fluctuations in insolation forced by the variation in
Earth's astronomical parameters. The astronomically induced climate change affected the …
Earth's astronomical parameters. The astronomically induced climate change affected the …
Pre-Cenozoic cyclostratigraphy and palaeoclimate responses to astronomical forcing
D De Vleeschouwer, LME Percival… - Nature Reviews Earth & …, 2024 - nature.com
Astronomical insolation forcing is well established as the underlying metronome of
Quaternary ice ages and Cenozoic climate changes. Yet its effects on earlier eras …
Quaternary ice ages and Cenozoic climate changes. Yet its effects on earlier eras …
[HTML][HTML] Dynamic oceanic redox conditions across the late Cambrian SPICE event constrained by molybdenum and uranium isotopes
Abstract The Steptoean Positive Carbon Isotope Excursion Event (SPICE) represents one of
the largest carbon cycle perturbations in the Cambrian, which coincided with climatic …
the largest carbon cycle perturbations in the Cambrian, which coincided with climatic …
The Ordovician of Scandinavia: a revised regional stage classification
AT Nielsen, P Ahlberg, JOR Ebbestad… - Geological Society …, 2023 - lyellcollection.org
Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …
investigated for over two centuries and, through time, various chronostratigraphic schemes …
Astronomical forced sequence infill of Early Cambrian Qiongzhusi organic-rich shale of Sichuan Basin, South China
S Liu, S Jin, Y Liu, A Chen - sedimentary Geology, 2022 - Elsevier
Abstract Early Cambrian Qiongzhusi Formation has attracted great attention due to shale
gas finding. However, this organic-rich shale formation is yet no robust high-resolution …
gas finding. However, this organic-rich shale formation is yet no robust high-resolution …
Late Cambrian geomagnetic instability after the onset of inner core nucleation
Abstract The Ediacaran Period marks a pivotal time in geodynamo evolution when the
geomagnetic field is thought to approach the weak state where kinetic energy exceeds …
geomagnetic field is thought to approach the weak state where kinetic energy exceeds …
Novel age constraints for the onset of the Steptoean Positive Isotopic Carbon Excursion (SPICE) and the late Cambrian time scale using high-precision U-Pb detrital …
HR Cothren, TP Farrell, FA Sundberg… - …, 2022 - pubs.geoscienceworld.org
Abstract The Steptoean Positive Isotopic Carbon Excursion (SPICE) is a prominent+ 4–5‰
shift in the Cambrian δ13C record used for global chronostratigraphic correlation. The onset …
shift in the Cambrian δ13C record used for global chronostratigraphic correlation. The onset …
Fine clay shuttle as a key mechanism for V hyper-enrichment in shallow water Tremadocian black shale from Baltica
The essential role of the fine mineral fraction in V hyper-enrichment in black shales has
been suggested in previous studies; however,'the operational details' of such metallogenic …
been suggested in previous studies; however,'the operational details' of such metallogenic …
[HTML][HTML] A 20-million-year reconstruction to decipher the enigmatic Cambrian extinction–Ordovician biodiversification transition
Abstract The late Cambrian extinction–Early Ordovician biodiversification represents one of
the crucial lower Paleozoic biological changes. However, the mechanisms responsible for …
the crucial lower Paleozoic biological changes. However, the mechanisms responsible for …
No evidence for a volcanic trigger for late Cambrian carbon-cycle perturbations
The early Paleozoic was marked by several carbon-cycle perturbations and associated
carbon-isotope excursions (CIEs). Whether these CIEs are connected to significant …
carbon-isotope excursions (CIEs). Whether these CIEs are connected to significant …