Results 121 to 130 of about 330,203 (416)

Metal stable isotope signatures as tracers in environmental geochemistry.

open access: yesEnvironmental Science and Technology, 2015
The biogeochemical cycling of metals in natural systems is often accompanied by stable isotope fractionation which can now be measured due to recent analytical advances.
J. Wiederhold
semanticscholar   +1 more source

Regional significance of volcanic geochemistry in the Far Triple Junction, Ethiopia [PDF]

open access: yes
Regional significance of volcanic geochemistry in far Triple Junction ...
Mohr, P. A.
core   +1 more source

GSUE: urban geochemical mapping in Great Britain [PDF]

open access: yes, 2005
The British Geological Survey is responsible for the national strategic geochemical survey of Great Britain. As part of this programme, the Geochemical Surveys of Urban Environments (GSUE) project was initiated in 1992 and to date, 21 cities have been ...
Ander, E.L.   +7 more
core   +2 more sources

Multi‐sequential order transgressive cycles from the last interglacial to the Holocene revealed by deep‐core sediment facies analysis in the Baeksu tidal deposits, south‐west coast of Korea

open access: yesThe Depositional Record, EarlyView.
With the aid of a chronologically well‐constrained stratigraphy, facies and sequence analyses were carried out on three drill‐cores obtained from estuarine macrotidal flats. The sequence analysis of the late Quaternary tidal deposits shows that four transgressions occurred in multi‐sequential order, whereas the intervening regressive phases were much ...
Serin Lim   +4 more
wiley   +1 more source

Insights into the influences of biochar on the fate and transport of pesticides in the soil environment: a critical review

open access: yesBiochar
Pesticide misuse and overuse severely pollute agricultural soils, water, and crop yields, harming people and animals. This situation raises serious concerns about environmental pollution on a global scale. As an eco-friendly material for soil remediation,
Gratien Twagirayezu   +6 more
doaj   +1 more source

Elution of Adsorbed n-alkanes by 5Å Molecular Sieve Using Solvent Mixtures for Compound-Specific Hydrogen Isotopic Analysis

open access: yesYankuang ceshi, 2017
The extraction procedure using solvent mixtures has been used to elute n-alkanes adsorped by 5Å molecular sieve and subsequent stable carbon isotope ratio analysis of individual n-alkanes.
CHEN Sha-sha   +4 more
doaj   +1 more source

Основні напрямки розвитку пошукової та екологічної геохімії [PDF]

open access: yes, 2008
У статті коротко охрактеризований внесок фахівців Інституту геохімії, мінералогії та рудоутворення ім. М. П. Семененка НАН України у розвиток основних напрямів пошукової та екологічної геохімії — геохімії ландшафтів, геохімії осадових порід, процесів ...
Жовинський, Е.Я.   +2 more
core  

Oxygen-isotope and trace element constraints on the origins of silica-rich melts in the subarc mantle [PDF]

open access: yes, 2007
Peridotitic xenoliths in basaltic andesites from Batan island in the Luzon arc contain silica-rich (broadly dacitic) hydrous melt inclusions that were likely trapped when these rocks were within the upper mantle wedge underlying the arc.
Eiler, J. M.   +4 more
core   +3 more sources

Reply to the discussion and comments of Pestilho, A.L.S. and Mors, R.A. (2025) on the paper by Gomes et al. (2024). Early diagenetic evolution based on petrography and stable isotope analysis in the Barra Velha Formation of the Brazilian Pre‐salt. The Depositional Record, 1–25. https://doi.org/10.1002/dep2.288

open access: yesThe Depositional Record, EarlyView.
Abstract We very much appreciate the comments of André; Pestilho and Agustin Mors on our paper discussing the early diagenesis of the Pre‐salt carbonates (Barra Velha Formation, BVF) in the Santos Basin (Gomes et al., 2024). We welcome the opportunity to respond and to clarify our interpretations concerning dolomite formation, diagenetic timing and ...
João Paulo Borges Gomes   +6 more
wiley   +1 more source

High-temporal resolution fluvial sediment source fingerprinting with uncertainty: a Bayesian approach [PDF]

open access: yes, 2014
This contribution addresses two developing areas of sediment fingerprinting research. Specifically, how to improve the temporal resolution of source apportionment estimates whilst minimizing analytical costs and, secondly, how to consistently quantify ...
Acornley   +71 more
core   +1 more source

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