Toward an improved understanding of the marine barium cycle and the application of marine barite as a paleoproductivity proxy
Marine barite (BaSO4) is a relatively ubiquitous, though minor, component of ocean
sediments. Modern studies of the accumulation of barite in ocean sediments have …
sediments. Modern studies of the accumulation of barite in ocean sediments have …
Bioactive trace metals and their isotopes as paleoproductivity proxies: An assessment using GEOTRACES‐era data
Phytoplankton productivity and export sequester climatically significant quantities of
atmospheric carbon dioxide as particulate organic carbon through a suite of processes …
atmospheric carbon dioxide as particulate organic carbon through a suite of processes …
Constraining the oceanic barium cycle with stable barium isotopes
Z Cao, C Siebert, EC Hathorne, M Dai… - Earth and Planetary …, 2016 - Elsevier
The distribution of barium (Ba) concentrations in seawater resembles that of nutrients and
Ba has been widely used as a proxy of paleoproductivity. However, the exact mechanisms …
Ba has been widely used as a proxy of paleoproductivity. However, the exact mechanisms …
Barium and strontium isotope fractionation by cyanobacteria forming intracellular carbonates
While barium (Ba) and strontium (Sr) stable isotopes are increasingly used as tracers of
biogeochemical processes and paleo-proxies, the role of biotic processes on Ba and Sr …
biogeochemical processes and paleo-proxies, the role of biotic processes on Ba and Sr …
Barium isotopes in mid-ocean ridge hydrothermal vent fluids: A source of isotopically heavy Ba to the ocean
YT Hsieh, L Bridgestock, PP Scheuermann… - … et Cosmochimica Acta, 2021 - Elsevier
Mid-ocean ridge (MOR) hydrothermal vent fluids are enriched with dissolved barium, but
due to barite (BaSO 4) precipitation during mixing between Ba-bearing vent fluids and SO 4 …
due to barite (BaSO 4) precipitation during mixing between Ba-bearing vent fluids and SO 4 …
Estuarine processes modify the isotope composition of dissolved riverine barium fluxes to the ocean
Barium (Ba) isotope variations offer the potential to trace environmental processes, including
long-term changes in river discharge and marine export production. Riverine inputs are an …
long-term changes in river discharge and marine export production. Riverine inputs are an …
Barium in deep-sea bamboo corals: Phase associations, barium stable isotopes, & prospects for paleoceanography
Reconstruction of past seawater δ 138/134 Ba NIST (barium-isotopic compositions) can
augment existing proxies of water mass provenance and deep-ocean circulation. Deep-sea …
augment existing proxies of water mass provenance and deep-ocean circulation. Deep-sea …
Seasonal riverine barium isotopic variation in the middle Yellow River: Sources and fractionation
Barium (Ba) isotopes have been used to trace water mass mixing and export productivity in
the oceans. However, the sources, isotopic signature and seasonal variation of dissolved Ba …
the oceans. However, the sources, isotopic signature and seasonal variation of dissolved Ba …
Controls on the barium and strontium isotopic records of water chemistry preserved in freshwater bivalve shells
KS Dobra, RC Capo, BW Stewart… - … Science & Technology, 2024 - ACS Publications
Biogenic carbonates, including bivalve shells, record past environmental conditions, but
their interpretation requires understanding environmental and biological factors that affect …
their interpretation requires understanding environmental and biological factors that affect …
Barium isotopic fractionation in latosol developed from strongly weathered basalt
Weathering is a key process in the transfer of material from continents to the hydrosphere. A
latosol profile in Zhanjiang, Guangdong Province, South China, formed through intense …
latosol profile in Zhanjiang, Guangdong Province, South China, formed through intense …