The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +3 more sources
Evidence of hydrological control of Sr behavior in stream water (Strengbach catchment, Vosges mountains, France) [PDF]
, 2002 Strontium and particularly 87Sr/86Sr ratios in stream water have often been used to calculate weathering rates in catchments. Nevertheless, in the literature, discharge variation effects on the geochemical behavior of Sr are often omitted or considered ...
Amiotte-Suchet +48 more
core +2 more sources
Diversity, 2018 Coral reefs globally are impacted by natural and anthropogenic stressors that are compounded by climate change. Understanding past reef responses to natural stressors (cyclones, sea-level change, freshwater inputs, and sedimentation) can provide ...
Emma J. Ryan +4 more
doaj +1 more source
Strontium isotopes and the reconstruction of the Chaco regional system: evaluating uncertainty with Bayesian mixing models. [PDF]
PLoS ONE, 2014 Strontium isotope sourcing has become a common and useful method for assigning sources to archaeological artifacts.In Chaco Canyon, an Ancestral Pueblo regional center in New Mexico, previous studiesusing these methods have suggested that significant ...
Brandon Lee Drake +3 more
doaj +1 more source
Bulletin of the Mineral Research and Exploration, 2020 The Salda Lake basin which is in the southwestern Turkey is an important water body in view of environmental values. We used stable isotopes (δD and δ18O), δ3H and 14C composition of the water samples to understand recharge process effective in the ...
Simge VAROL +6 more
doaj +1 more source
Cretaceous-to-recent record of elevated 3He/4He along the Hawaiian-Emperor volcanic chain [PDF]
, 2004 Helium isotopes are a robust geochemical tracer of a primordial mantle component in hot spot volcanism. The high 3He/4He (up to 35 RA, where RA is the atmospheric 3He/4He ratio of 1.39 × 10−6) of some Hawaiian Island volcanism is perhaps the classic ...
Duncan, R. A. +4 more
core +1 more source
Oxygen isotope geochemistry of the second HSDP core [PDF]
, 2003 Oxygen isotope ratios were measured in olivine phenocrysts (~1 mm diameter), olivine microphenocrysts (generally ~100–200 µm diameter), glass, and/or matrix from 89 samples collected from depths down to 3079.7 m in the second, and main, HSDP core (HSDP-2)
Eiler, John M. +2 more
core +1 more source
Nature Communications, 2017 Fishing of keystone herbivores such as parrotfish is thought to negatively impact corals. Here, Cramer and colleagues analyse the sedimentary record for the last 3,000 years from three coral reef sites in the Caribbean and show that indeed coral declines
Katie L. Cramer +4 more
doaj +1 more source
Amphibole: A major carrier of helium isotopes in crustal rocks [PDF]
, 2016 The first evidence for a specific role of amphiboles in He isotope balance of crustal rocks was presented in early contributions by Gerling et al. (1971, 1976).
A.B. Verchovsky +65 more
core +1 more source
Neodymium isotopic composition and concentration in the western North Atlantic Ocean: results from the GEOTRACES GA02 section [PDF]
, 2015 The neodymium (Nd) isotopic composition of seawater is commonly used as a proxy to study past changes in the thermohaline circulation. The modern database for such reconstructions is however poor and the understanding of the underlying processes is ...
Coles, B +9 more
core +1 more source