Study geosciences zinc isotopes. Medical search. Frequent questions

Stable isotope ratios of trace metals can be used to answer a variety of questions spanning diverse fields, including oceanography, geochemistry, biology, medicine, anthropology and astronomy. (wikipedia.org)
He is an internationally recognized researcher across numerous fields, including aqueous geochemistry, cosmochemistry, experimental petrology and isotope metallomics. (edu.au)
Additionally, he conducts methods development research for scalable/commercializable trace metal isotope geochemistry and its environmental applications, applications to human health and disease, and to critical minerals research and exploration. (edu.au)
Several lines of evidence, including studies on the regional sedimentology, sediment geochemistry, nature of sulfide layering, paragenesis, and chemistry of base metal transport and deposition, are used here to demonstrate that a synsedimentary origin is likely for the HYC deposit. (edu.au)
Studies on the regional sedimentology and geochemistry of the Barney Creek Formation have shown that the host rocks to the ore deposit, the HYC Pyritic Shale, represent a period of water deepening. (edu.au)
Report on the 11th Applied Isotope Geochemistry Conference (AIG11)in Orleans, France - Ashish Sarkar, School of Petroleu. (vibdoc.com)
Nathalie Vigier, CNRS, Laboratoired'Océanographiede Villefranche, France.The AIG11brought together specialists in the different fields related to applied isotope geochemistry, to present the state-of-the-art developments as well as key examples of application and to promote exchange of ideas between scientists working around the world.Thewater resources were an area of special focus in this meeting. (vibdoc.com)

An international team of scientists has now applied a new method to investigate the diet of fossil humans: the analysis of stable zinc isotopes from tooth enamel. (sciencedaily.com)
In this study, researchers analysed the zinc stable isotope ratios from animal and human teeth from two sites in the Huà Pan Province of Laos: Tam Pà Ling and the nearby site of Nam Lot. (sciencedaily.com)
With zinc stable isotope ratios, we can now study Tam Pà Ling and learn what kind of food our earliest ancestors in this region were eating. (sciencedaily.com)
Another kind of analysis performed in this study -- stable carbon isotopes analysis -- indicates that the food consumed came strictly from forested environments," says Élise Dufour, researcher at the National Natural History Museum of Paris. (sciencedaily.com)
Trace metal stable isotope biogeochemistry is the study of the distribution and relative abundances of trace metal isotopes in order to better understand the biological, geological, and chemical processes occurring in an environment. (wikipedia.org)
Both stable and radioactive isotopes of trace metals exist, but this article focuses on those that are stable. (wikipedia.org)
In order to study trace metal stable isotope biogeochemistry, it is necessary to compare the relative abundances of isotopes of trace metals in a given biological, geological, or chemical pool to a standard (discussed individually for each isotope system below) and monitor how those relative abundances change as a result of various biogeochemical processes. (wikipedia.org)
Trace metal stable isotope biogeochemistry is still an emerging field, yet each trace metal isotope system has clear, powerful applications to diverse and important questions. (wikipedia.org)
While traditional stable isotope analyses of tooth enamel (e.g., carbon and oxygen) and trace element ratios (e.g. (blueskytccaalibaba.com)
Inter-comparison of stable iron, copper and zinc isotopic compositions in six reference materials of biological origin. (lifewatch.be)
Ore component mobility, transport and mineralization at mid-oceanic ridges: a stable isotopes (Zn, Cu and Fe) study of the Rainbow massif (Mid-Atlantic Ridge 36°14′N). (lifewatch.be)
The core of our work remains the applications of non-traditional stable isotopes (Zn, Cd, Cu, Fe) in addition to traditional radiogenic isotopes (Pb, Hf, Nd, Sr…), as tracers of sources and processes of global biogeochemical cycles in Earth, environmental pollution and paleo-environmental reconstruction. (ulb.be)
Use of Water Stable Isotopes in Hydrological Processes. (irb.hr)
Stable Isotope Studies of the Water Cycle and Terrestrial Environments. (irb.hr)
Stable isotope and clumped isotope measurements will be obtained in order to study the diagenetic processes that could have affected the shells. (baseline-earth.eu)

In this session, we'll shine the spotlight on current and future stars of geology, geophysics and more, with a focus on cutting edge geoscience research focussed on Queensland's mineral resources. (edu.au)
Haldar, S.K. and Deb, M. (2001) Geology and Mineralization of Rajpura-Dariba Lead-Zinc Belt, Rajasthan. (scirp.org)
There has been a mid-conference field trip on 23rd September 2015.The themes of the Scientific Sessions include Isotope Biogeochemistry, Advances in Methodologial andInstrumental Developments, Isotope Geology (Climate Change andGeoresources, Residence Times, Critical Zone, Groundwater Flow), Isotopes in Underground EnergyResources, Environmental Forensics, and Isotope Forensics. (vibdoc.com)

Nature Geoscience, 10(3), 167-173. (geotraces.org)

Additionally, at high temperatures, metals ions can evaporate (and subsequently condense upon cooling), and the relative differences in isotope masses of a given heavy metal leads to fractionation during these evaporation and condensation processes. (wikipedia.org)
Additionally, isotopes can have slight variations in their solubility and other chemical and physical properties, which can also drive fractionation. (wikipedia.org)
Laboratory study of iron isotope fractionation during dissolution of mineral dust and industrial ash in simulated cloud water. (lifewatch.be)
Iron, copper, and zinc isotopic fractionation in seafloor basalts and hydrothermal sulfides. (lifewatch.be)

For a more complete description of these notations, see the isotope notation section in Hydrogen isotope biogeochemistry. (wikipedia.org)

He joined JCU Geoscience in 2020. (edu.au)
Arabian Journal of Geosciences (2020) 13:354. (ac.rs)

International Journal of Geosciences , 6 , 567-576. (scirp.org)

Evaluation of acid mine drainage kinetics in the lead-zinc mine. (ac.rs)
For the final day of the trip on the 9th of June, ESRs crossed the border into Slovenia to visit the decommissioned Mežica lead-zinc mine situated within Triassic Carbonates. (baseline-earth.eu)

Nitrogen isotope analysis, in particular, can help scientists learn if past humans were eating animals or plants. (sciencedaily.com)
This omnivorous diet also differs from most nitrogen isotope data of humans in other regions of the world for that time period, where a meat-rich diet is almost consistently discerned. (sciencedaily.com)
In this study, we show that the nitrogen isotope composition of organic matter preserved in mammalian tooth enamel (δ 15 N enamel ) records diet and trophic position. (blueskytccaalibaba.com)

I have also worked with radiogenic isotopes to determine the source contributions to flood basalt magmatism, and hope to apply similar tools to alkaline systems to determine the origins of their rare metal endowment. (alkcarb.org)

Testing various pre-treatments on artificially waterlogged and pitch-contaminated wood for strontium isotope analyses. (lifewatch.be)

Trace metals are elements such as iron, magnesium, copper, and zinc that occur at low levels in the environment. (wikipedia.org)
The paper reported on elevated surface soil concentrations of lead, arsenic, copper, zinc and silver in the Junín Plain of central Peru. (union.edu)
In 1982, the U.S. Mint converted production of the 95% copper coin to a predominantly zinc alloy, but coated it with copper to preserve its appearance. (coussin-rideau-et-cie.fr)
One of the dental alloy types used for decades consists of silver, copper, zinc and other metals held together by liquid mercury. (sciencing.com)
Chauhan, D.S. (1977) The Dariba Main Lode of the Rajpura-Dariba Zinc-Lead-Copper Belt, Udaipur District, Rajasthan. (scirp.org)

The fine-grained, laminated, stratiform zinc-lead ores of the McArthur River (HYC) ore deposit have been the subject of continued debate in regard to the timing of zinc-lead mineralization. (edu.au)
Sedimentary manganese deposition was immediately followed by zinc-lead mineralization in the deep-water, reduced facies of the HYC Pyritic Shale Member. (edu.au)
This report outlines interim data from a study of potential linkages between magmatism and SEDEX mineralization in the Selwyn Basin, Yukon. (gc.ca)
This region is an ideal study site due to the close spatial and temporal relationships between SEDEX deposits and magmatism, particularly in the MacMillan Pass, where volcanic rocks have been drilled with mineralization at the Boundary deposit. (gc.ca)
2018. The Study of alteration, mineralization, and fluid inclusion in the Howz-e-Sefid zinc-lead deposit (Central Iran). (ac.ir)

Fluid inclusion studies show distinct variations in composition, final homogenization temperature, and salinity in four stages. (hindawi.com)

Time-integrated geochemical and isotopic studies of stratigraphic volcanic series on the Kerguelen Archipelago: modeling of the plume activity, characterization of the enriched component (EM-I) and implications for deep mantle anomalous velocity zones. (ubc.ca)

A complete understanding of all processes that fractionate trace metal isotopes is presently lacking, but in general, isotopes of trace metals are fractionated during various chemical and biological processes due to kinetic and equilibrium isotope effects. (wikipedia.org)
Some metals, such as lithium or zinc, which are usually rare in the environment, can be considerably enriched because of our massive use of high-tech objects, which are little recycled. (anr.fr)
Lead isotope studies suggest that the metals were extracted from local basement rocks. (hal.science)
Dr Brandon Mahan is a trace element and isotope geochemist, with a focus on trace metals and their isotope systematics in Earth Systems and in Life Sciences. (edu.au)
As an advocate for the use of metals and their isotopes in understanding and diagnosing human disease, and in the transition to green energy, Dr Mahan actively seeks R&D projects with external academic, government and industry stakeholders towards aligned methods development and projects. (edu.au)
This study suggests that the Gardeneshir Pb-Zn deposit is an epigenetic, thrust fold-controlled and stratabound deposit with fluids and metals derived via the Triassic sedimentary strata. (ac.ir)
Exploration of Pacific Salmon's Ocean Life and anthropogenic impact (trace metals and Pb isotopes). (ubc.ca)

Furthermore, as different biogeochemical processes vary the relative abundances of the isotopes of a given trace metal, different reaction pools or substances will become enriched or depleted in specific isotopes. (wikipedia.org)
In sediments, oceans, and rivers, distinct trace metal isotope ratios exist due to biological processes such as metal ion uptake and abiotic processes such as adsorption to particulate matter that preferentially remove certain isotopes. (wikipedia.org)
Sulfur isotope data and studies of organic matter indicate that the reduced sulfur in the ores was derived from the reduction of Mesozoic marine sulfate by thermochemical sulfate reduction or bacterially mediated processes at a different time or place from ore deposition. (hal.science)
The studies of the Trèves ores provide insights into the ore-forming processes of a typical MVT deposit in the Cévennes region. (hal.science)
Zinc-lead deposition was the result of two possible processes: (1) thermo-chemical reduction of brine sulfate by organic matter in anoxic basin water, and (2) diffusion of H2S from the anoxic water column into the metalliferous brine layer. (edu.au)
Sulfur isotope data are best explained if both processes operated together to deposit galena and sphalerite. (edu.au)
In Januray, 2016 the cultivation of Pajaudina atlantica Logan, 1988 started at the facilities of GEOMAR , where BASE-LiNE Earth investigates the incorporation (partition coefficient) during growth of certain redox sensitive elements in cultured and living brachiopods to also better understand the inherent biomineralization processes and mechanisms, which will enable us to apply the trace element and isotope systems to fossil archives. (baseline-earth.eu)

Study of the isotopic compositions of aerosols emitted by metallurgical activities has been developed in the perspective to trace their sources and impacts. (ulb.be)

The Calamines and the others: the great family of supergene nonsulfide zinc ores. (ac.ir)

Distribution of elements and isotopes in Earth systems with emphasis on the use abundances and isotopic ratios in defining the source and evolution of igneous rocks, the interaction between different reservoirs (mantle, crust and atmosphere) and the role of tectonic settings. (ubc.ca)

The Geological Survey of Queensland (GSQ) Open Data Portal has been created to unlock Queensland's geoscience data, supporting exploration and attracting investment in the resources sector. (qld.gov.au)

Together, the zinc and carbon isotope results may suggest a mix of specialized adaptations to tropical rainforests seen from other Southeast Asian archaeological sites. (sciencedaily.com)

In contrast, the nitrogen (N) isotope ratio of organic material (expressed as δ 15 N vs. AIR in ‰, where δ 15 N = [( 15 N/ 14 N sample / 15 N/ 14 N reference ) − 1] × 1000) derived from bulk tissues or specific compounds (e.g., amino acids) is a widely used proxy for the dietary and trophic behavior of animals in terrestrial and marine food webs. (blueskytccaalibaba.com)
Despite the potential of nitrogen isotopes for trophic reconstruction, their application in the paleontological record has been limited due to the poor preservation of N-containing organic matter. (blueskytccaalibaba.com)

I have recently completed a PhD at Southampton University and in collaboration with Teck Ireland Ltd, studying Pb-Zn mineralisation associated with diatremes in Ireland. (alkcarb.org)

The fossil human studied in this research dates from the Late Pleistocene, more precisely from 46,000 to 63,000 years ago. (sciencedaily.com)
When we compare the zinc isotope values from the fossil Homo sapiens of Tam Pà Ling to that of the animals, it strongly suggests that its diet contained both plants and animals. (sciencedaily.com)

It will be interesting, in the future, to compare our zinc isotope data with data from other prehistoric human species of Southeast Asia, like Homo erectus and Homo floresiensis , and see if we could understand better why they went extinct while our species survived," concludes first author Nicolas Bourgon, a researcher at the Max Planck Institute for Evolutionary Anthropology. (sciencedaily.com)
We have chosen not to deposit the data at this time but declare that data supporting the findings of this study are available within this article and its Supplementary Information , and all additional data are available from the corresponding author on request. (nature.com)

The strong similarities between zinc and silicon vertical profiles have led many studies to suggest the uptake of zinc in diatom frustules, followed by simultaneous remineralisation at depth. (geotraces.org)

The Trèves zinc-lead deposit is one of several Mississippi Valley-type (MVT) deposits in the Cévennes region of southern France. (hal.science)

Fluid inclusion studies show that the ore was deposited at temperatures between approximately 80 and 150°C from a brine that derived its salinity mainly from the evaporation of seawater past halite saturation. (hal.science)

I have been applying specialised geological and geophysical techniques in the study and exploration of carbonatite-hosted industrial mineral deposits over the last 25 years. (alkcarb.org)

Reconstructing the history of Pb pollution in the Vancouver area, through a systematic study of Pb isotopes in fallen trees from Stanley Park and sediments off the coast of Vancouver Island. (ubc.ca)

This 'longitudinal' study of Jellyfish Lake is complemented by biotic surveys of Jellyfish Lake and other marine lakes in Palau that allow a glimpse of how lake communities differ from one another, and what physical characteristics contribute to these differences. (coralreefpalau.org)

Geochronologic studies emphasize the episodic nature of the deposition of giant iron formations, as they are coeval with, and genetically linked to, time periods when large igneous provinces (LIPs) were emplaced. (docslib.org)

Redox transfer at subduction zones: insights from Fe isotopes in the Mariana forearc. (lifewatch.be)

However, this study shows that early Homo sapiens could adapt to different environments. (sciencedaily.com)

Applied geoscience research really interests me, so I am excited about the impact HiTech AlkCarb will make on critical raw materials in Europe. (alkcarb.org)
Some of the best geoscience research is being done by upcoming students - both at home and abroad. (edu.au)
In this role and as part of the Earth and Environmental Science (EES) at JCU, Dr Mahan applies his skillset to drive novel research agendas, while continuously building depth and breadth within the Geosciences by cultivating relationships with complementary research teams across Biomedical Science, Chemistry, Archaeology and Marine Science. (edu.au)
Her research interests lie at the interface of biology, chemistry and physics, with a specific focus on developing analytical techniques and workflows to quantify temporal dynamics of intracellular metal species, their subcellular localisation, and identification of key biomolecules involved in their binding and transport with minimal disruption to the system of study through the use of both elemental mass spectrometry and synchrotron X-ray spectroscopy based bioimaging techniques. (rsc.org)

Conventional notations used to mathematically describe isotope abundances, as exemplified here for 56Fe, include the isotope ratio (56R), fractional abundance (56F) and delta notation (δ56Fe). (wikipedia.org)

My background is in physical volcanology, geomorphology and sedimentology, especially in relation to hazard and risk associated with Icelandic volcanoes, and I have interests in geoscience communication. (alkcarb.org)

The Targeted Geoscience Initiative (TGI) is a collaborative federal geoscience program that provides industry with the next generation of geoscience knowledge and innovative techniques, which will result in more effective targeting of buried mineral deposits. (gc.ca)

I am a senior geologist at the British Geological Survey and have been working on alkaline rocks and carbonatites for over 20 years, studying localities from Greenland to Madagascar. (alkcarb.org)
The study of melt inclusion (sulfide melt) of sphalerite showed the maximum temperature of melting which was 923 ° C on the Linkam-TMS94 (the maximum temperature limit of the system is up to 1500 ° C). The maximum temperature of melting of sphalerite reveals that the dolerite and/or pegmatite intrusion might have supplied sulfide rich melt during the study area in the geological past. (scirp.org)

Isotopes in environmental and health studies, 57 (2), 142-165 doi:10.1080/10256016.2020.1852235. (irb.hr)

Diffusion of isotopes through a solution or material can also result in fractionations, as the lighter mass isotopes are able to diffuse at a faster rate. (wikipedia.org)

Chemicals and Drugs5

Analytical, Diagnostic and Therapeutic Techniques and Equipment1

Phenomena and Processes1

Geochemistry7

Stable15

Geology3

Nature Geoscience1

Fractionation4

Biogeochemistry1

20202

Journal of Geosciences1

Lead-zinc2

Nitrogen isotope3

Radiogenic isotopes1

Analyses1

Copper5

Mineralization5

Composition1

Geochemical1

Metals7

Processes7

Compositions1

Ores1

Ratios1

Queensland's1

Carbon1

Trophic2

Mineralisation1

Fossil2

Data2

Uptake1

Deposit1

Evaporation1

Exploration1

Sediments1

Differences1

Deposition1

Redox1

Environments1

Research4

Abundances1

Sedimentology1

Mineral deposits1

Geological2

Environmental1

Mass1