“The Answer to the Great Question... Of Life, the Universe and Everything... Is... Forty-two,” said Deep Thought, with infinite majesty and calm…“I checked it very thoroughly,” said the …
To improve estimates of the extent of ocean oxygenation during the late Ediacaran Period, we measured the U and Mo isotope compositions of euxinic (anoxic and sulfidic) organic …
SE Grasby, X Liu, R Yin, RE Ernst, Z Chen - Geology, 2020 - pubs.geoscienceworld.org
Large spikes in mercury (Hg) concentration are observed globally at the latest Permian extinction (LPE) horizon that are thought to be related to enhanced volcanic emissions of the …
A 6.7 million year record of marine sedimentation through the Permo Triassic Biotic Crisis shows notable shifts in mercury concentrations that varied over an order of magnitude …
NE Holden, TB Coplen, JK Böhlke… - Pure and Applied …, 2018 - degruyter.com
Abstract The IUPAC (International Union of Pure and Applied Chemistry) Periodic Table of the Elements and Isotopes (IPTEI) was created to familiarize students, teachers, and non …
Z Qin, D Xu, B Kendall, X Zhang, Q Ou, X Wang… - … et Cosmochimica Acta, 2022 - Elsevier
Oceanic redox changes may be a key environmental trigger for the “Cambrian explosion”. However, a hypothesized predominantly oxygenated early Cambrian ocean, inferred from …
A detailed, 10 my redox history of Changhsingian to Anisian (latest Permian to Middle Triassic) oceans in ramp settings is reconstructed based on framboidal pyrite analysis from …
The recovery of life after the latest Permian extinction was protracted over Early Triassic time. Detailed geochemistry of marine sections along northwest Pangea indicates that …
Stratigraphic records from northwestern Pangea provide unique insight into global processes that occurred during the latest Permian extinction (LPE). We examined a detailed …