Zinc and strontium isotope evidence for climate cooling and constraints on the Frasnian-Famennian (~ 372 Ma) mass extinction

X Wang, SA Liu, Z Wang, D Chen, L Zhang - Palaeogeography …, 2018 - Elsevier
Abstract The Frasnian-Famennian (FF) mass extinction is one of the “Big Five” biotic crises
during the Phanerozoic, whereas the cause of this catastrophic event still remains debated …

Sea-level changes vs. organic productivity as controls on Early and Middle Devonian bioevents: Facies-and gamma-ray based sequence-stratigraphic correlation of …

O Bábek, M Faměra, D Šimíček, H Weinerová… - Global and Planetary …, 2018 - Elsevier
The Devonian marine stratigraphic record is characterized by a number of bioevents–
overturns in pelagic and benthic faunal assemblages, which are associated with distinct …

Cerro Verde-Santa Rosa Copper-Molybdenum Deposits, Peru: Magmatic, Hydrothermal, and Supergene Characteristics of Two Adjacent Porphyry Systems

RJ Stegen, MD Barton, JA Waegli - 2018 - pubs.geoscienceworld.org
Abstract At the Cerro Verde district in southern Peru, granodiorite porphyry stocks formed
two adjacent porphyry copper-molybdenum deposits that collectively form one of the largest …

[PDF][PDF] Refining the timing of the Middle-Late Ordovician inflection point in seawater 87Sr/86Sr using conodont apatite

TD Avila, MR Saltzman, EM Griffith - researchgate.net
Background➢ The global 87Sr/86Sr signal has two common uses: a relative dating
technique across sites and as a proxy for global silicate weathering patterns. Due to …