Results 101 to 110 of about 264,999 (349)

Permian tectonic switch of the southern Central Asian Orogenic Belt: Constraints from magmatism in the southern Alxa region, NW China

open access: yesOpen Geosciences
Late Paleozoic plutons are widely distributed in the Alxa region, southernmost Central Asian Orogenic Belt, and provided an important clue in constraint for the closing time of the Paleo-Asian Ocean (PAO). In this article, we present new zircon U-Pb ages
Wang Erteng   +9 more
doaj   +1 more source

Modern geochemical situation in Staroosko-Gubkinsky mining region, an KMA

open access: yes, 2013
Evaluation of contemporary geochemical situation in the in Staroosko-Gubkinsky industrial area, as one of the most converted regions of extraction of iron ores in Kursk magnetic anomaly was made.
Gordeev, L. Y.   +2 more
core  

Robust CoDA balances and the role of the variance in complex riverine geochemical systems

open access: yes
This study introduces a robust method for analyzing the geochemical behavior of chemical species in river catchment water. It focuses on isometric log-ratio coordinates obtained from a sequential partition method that successively maximizes the explained
Gozzi, Caterina   +2 more
core   +1 more source

Health risk assessment of heavy metal accumulation in fruits exposed to geothermal waters: a case study and global implications

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The present study investigated the potential health risks of heavy metals (HMs) in the fruits and leaves of mulberry and sour cherry trees exposed to water from Sivas geothermal basin (Turkey). RESULTS The target HMs were ranked according to their hazard index as: Cd < Pb < Zn < Cu < Ni < Mn < Cr. The total hazard index for mulberry
E Işıl Arslan Topal   +3 more
wiley   +1 more source

Long‐Term Nitrogen Addition Weakens the Linkage Between Phosphorus Cycling Gene Abundance and Phosphatase Activity Through Soil Acidification in a Larix gmelinii Plantation

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Anthropogenic nitrogen (N) enrichment propels global forest ecosystems toward phosphorus (P) limitation, theoretically triggering the upregulation of microbial P‐acquisition capacity to maintain stoichiometric balance. However, the extent to which N addition regulates this adaptive capacity remains uncertain.
Xiang Zhang   +6 more
wiley   +1 more source

Petrogenesis of Early Cretaceous silicic volcanism in SE Uruguay: The role of mantle and crustal sources

open access: yes, 2010
Early Cretaceous (similar to 129 Ma) silicic rocks crop out in SE Uruguay between the Laguna Merin and Santa Lucia basins in the Lascano, Sierra Sao Miguel.
MORBIDELLI, Lucio   +7 more
core  

Beyond Chemical Compliance: A Critical Review Toward Microbiome‐Informed Ecological Exit Criteria for Bioremediated Soils

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Chemical compliance remains the usual endpoint for closing contaminated‐soil remediation projects, although it does not establish recovery of soil function or the durability of the post‐treatment state. This critical review examines when microbiological evidence can contribute to ecological closure decisions.
Mariusz Cycoń
wiley   +1 more source

Mapping geochemical patterns distribution at large scale using compoite samples to reduce the analytical costs

open access: yes, 2011
Use of composite samples from European FOREGS database as a tool to reduce the analytical costs in geochemical projects at continental ...
DE VIVO, BENEDETTO   +6 more
core  

Bio‐Derived Carbon Nanoparticles: A Green Amendment for Alleviating Heavy Metals in Soil–Plant Systems

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Heavy metal (HM) contamination of soil–plant systems poses persistent ecological and health risks, driving interest in nanoparticle‐based remediation. Although conventional chemically synthesized nanoparticles (CSNPs) are effective, their energy‐intensive production and residual toxicity limit sustainable deployment.
Babar Hussain   +6 more
wiley   +1 more source

Geochemical mapping using a geomorphologic approach beased on catchments

open access: yes, 2006
The Extended Sample Catchment Basin (ESCB) mapping technique, discussed in this paper, can be used to display the spatial distribution of geochemical variables measured in stream sediments taking into consideration the geomorphologic settings and the ...
Spadoni M
core  

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