Results 141 to 150 of about 5,408 (193)

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

Sedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot, Giovanna Della Porta, Mathias Mueller, Fabrizio Berra, Benjamin F. Walter, Aratz Beranoaguirre, Sylvia Riechelmann, Oskar Schramm, Adrian Immenhauser   +8 more
wiley   +1 more source

Metabolic Specialization and Synergy in Alkane Degradation By a Microbial Consortium: An Integrated Genomic and Geochemical Approach. [PDF]

Curr Microbiol
de Santana Nazaré PGB, de Menezes Neto AA, de Oliveira LA, de Souza Queiroz AF, de Oliveira OMC, Lima DF.   +5 more
europepmc   +1 more source

Geochemical fractions of rare earth elements in soil around a mine tailing in Baotou, China. [PDF]

Sci Rep, 2015
Wang L, Liang T.
europepmc   +1 more source

Siliceous sponges or seawater as a silicon source? Tracing silicon burial pathways of the Upper Cretaceous opal‐CT deposits using δ30Si and δ7Li

Sedimentology, EarlyView.
ABSTRACT Classical models of formation of sedimentary siliceous rocks (flint, chert, opoka) commonly assume that the Cretaceous marine silicon (Si) cycle was primarily biologically controlled, broadly analogous to the modern ocean. In this framework, siliceous sponges are regarded as the principal source of dissolved silica (dSi) to sediment porewaters,
Agata Jurkowska, Ewa Świerczewska‐Gładysz, Marek Szczerba, Tomáš Magna, Szymon Kowalik Filipowicz   +4 more
wiley   +1 more source

Landscape-scale controls on trace metals partitioning and mobility in tropical soils affected by legacy lead smelting. [PDF]

Environ Geochem Health
Victor VB, Gloaguen TV, Costa ODV, Bomfim MR, Santos JAG, Soares SAR, Hadlich GM.   +6 more
europepmc   +1 more source

Rare Earth Element Potential in the Araí Rift Metavolcanic, Central Brazil: Gamma‐Ray Signatures, Mineralogy and Exploration Implications

Terra Nova, EarlyView.
ABSTRACT Although central Brazil hosts significant ion‐adsorption rare earth element (REE) deposits associated with A‐type granites, their coeval volcanic counterparts have been largely overlooked as exploration targets. This study demonstrates that acidic metavolcanic rocks of the Araí Group share strong radiometric, geochemical and mineralogical ...
Yuri Ribeiro, Nilson Francisquini Botelho, Valmir da Silva Souza, Diego Guilherme da Costa Gomes   +3 more
wiley   +1 more source

Geochemical fate of lead in contaminated residential soils following application of amendments for lead immobilization. [PDF]

Front Chem
Saleh H, Braida W, Zhang Z, Datta R, Sarkar D.   +4 more
europepmc   +1 more source

Integrated assessment of heavy metal dynamics, ecological risk, and plant-mediated phytostabilization in mining-affected soils. [PDF]

Front Plant Sci
Daurov D, Zhambakin K, Daurova A, Sapakhova Z, Isgandarov I, Abilda Z, Sunatullayev Z, Klein I, Vyrakhmanova A, Ramazanova R, Sumbembayev A, Shamekova M.   +11 more
europepmc   +1 more source

Occurrence and Detection Profiles of Technology-Critical Elements (Ga, Ge, Nb, Ta and W) in Wild Mushrooms from Leicester and Leicestershire, UK. [PDF]

Toxics
Peña-Fernández A, Cámara-Pastor T, Durán GT, Lobo-Bedmar MC.   +3 more
europepmc   +1 more source

Sedimentary DNA and Fossil Archives Reveal Long-Term Phytoplankton Shifts and Their Biogeochemical Influence in a Subtropical Lake. [PDF]

Mol Ecol
Zhao Y, Zheng J, Zhong M, Zheng W, Qin B, Zhu K, Zhang C, Zhao Y, Zhang E, Capo E, Wang R.   +10 more
europepmc   +1 more source