Results 11 to 20 of about 7,546 (232)

Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)

Geochemistry, Geophysics, Geosystems
A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process.
Oriol Vilanova‐Pagès, Guillem Gisbert, Helena Albert, Adelina Geyer, Meritxell Aulinas, Raquel Arasanz, Jordi Ibañez‐Insa, Antonio Polo‐Sánchez, Antonio Álvarez‐Valero, Olga Prieto‐Ballesteros, Santiago Giralt   +10 more
doaj   +2 more sources

Enhancing Nitrate Removal With Industrial Wine Residue: Insights From Laboratory Batch and Column Experiments Using Chemical, Isotopic and Numerical Modeling Tools

Water Resources Research
Agricultural run‐off exposes recipient water bodies to nitrate (NO3−) pollution. Biological denitrification is a suitable method for removing NO3− in water resources that can be induced by the use of industrial organic liquid waste as an electron donor ...
Alex Abu, Raúl Carrey, Dídac Navarro‐Ciurana, Rosanna Margalef‐Marti, Albert Soler, Neus Otero, Jesús Causapé, Cristina Domènech   +7 more
doaj   +2 more sources

Troubles With Tubules: How Do Iron-Mineral Chemical Gardens Differ From Iron-Mineralized Sheaths of Iron Oxidizing Bacteria? [PDF]

Geobiology
ABSTRACT Microscopic tubules and filaments composed of iron minerals occur in various rock types of all ages. Although typically lacking carbonaceous matter, many are reasonably interpreted as the remains of filamentous microorganisms coated with crystalline iron oxyhydroxides. Iron‐oxidizing bacteria (IOB) acquire such a coating naturally during life.
Podbielski M, Knoll P, Brown G, Huld S, Neubeck A, Cartwright JHE, Sainz-Díaz CI, Pimentel C, McMahon S.   +8 more
europepmc   +2 more sources

PETROLOGIA, GEOQUÍMICA E TERMOBAROMETRIA DE ROCHAS METAULTRAMÁFICAS DA SEQUÊNCIA DE ITAGUARA (SETOR SUL DO CRÁTON DO SÃO FRANCISCO): POSSÍVEL FRAGMENTO DE MANTO LITOSFÉRICO OCEÂNICO PALEOPROTEROZOICO?

Geosciences = Geociências, 2022
A base de sequências ofiolíticas contém rochas ultramáficas do manto litosférico oceânico. Quando encontrados em terrenos continentais, esses litotipos evidenciam processos metamórficos que são registradas em sua mineralogia, composição química e ...
A. Barbosa, Alexandre de Oliveira Chaves
semanticscholar   +1 more source

Petrología y geoquímica de los Ortoneises aflorantes en los sectores central y este en el Macizo de Santander, Andes Colombianos

Revista Mexicana de Ciencias Geológicas, 2022
Los Ortoneises aflorantes en los sectores central y este en el Macizo de Santander, consisten en intercalaciones de neis hornbléndico, neis biotítico y neis cuarzo–feldespático, predominando las dos primeras variedades.
C. García-Ramírez, Vanessa Rey-León
semanticscholar   +1 more source

PETROLOGIA DE CORPOS FÉLSICOS DA PORÇÃO CENTRAL/NORDESTE DA MINA SERRA SUL LOCALIZADA EM CANAÃ DOS CARAJÁS, NO ESTADO DO PARÁ

Boletim Paranaense de Geociências, 2022
Uma unidade extrusiva ácida neoarqueana inserida na sequência metavulcanossedimentar (~2,76 Ga) do Grupo Grão Pará, Supergrupo Itacaiúnas, sendo representada por derrames basálticos sotopostos e sobrepostos a jaspilitos, riolitos, rochas vulcanoclásticas
Hélio Junior Lima Monteiro, Artur Corval, D. Roldão, Mozart Henrique Teixeira   +3 more
semanticscholar   +1 more source

Genetic markers associated with bone composition in Rhode Island Red laying hens

Genetics Selection Evolution, 2023
Background Bone damage has welfare and economic impacts on modern commercial poultry and is known as one of the major challenges in the poultry industry.
Moh Sallam, Peter W. Wilson, Björn Andersson, Matthias Schmutz, Cristina Benavides, Nazaret Dominguez‑Gasca, Estefania Sanchez‑Rodriguez, Alejandro B. Rodriguez‑Navarro, Ian C. Dunn, Dirk‑Jan De Koning, Martin Johnsson   +10 more
doaj   +1 more source

No evidence that selection for egg production persistency causes loss of bone quality in laying hens

Genetics Selection Evolution, 2021
Background The physiological adaptations that have evolved for egg laying make hens susceptible to bone fractures and keel bone damage. In modern laying hen breeds, longer periods of egg laying could result in a greater risk of poor bone quality, and ...
Ian C. Dunn, Dirk-Jan De Koning, Heather A. McCormack, Robert H. Fleming, Peter W. Wilson, Björn Andersson, Matthias Schmutz, Cristina Benavides, Nazaret Dominguez-Gasca, Estefania Sanchez-Rodriguez, Alejandro B. Rodriguez-Navarro   +10 more
doaj   +1 more source

Petrologia, química mineral e δ34S das mineralizações de Cu-Ni do Complexo Gabroico Canindé, Sistema Orogênico Sergipano, NE do Brasil

Geologia USP Série Científica, 2021
O Complexo Gabroico Canindé é um corpo máfico-ultramáfico com cerca de 240 km2 intrusivo em rochas do Domínio Geológico Canindé, do Sistema Orogênico Sergipano.
Fábio Bezerra Damasceno, Bruno Luiz Leite Martins, C. Marques de Sá   +2 more
semanticscholar   +1 more source

Petrologia do Stock Serra da Vaca, Domínio Poço Redondo, Sistema Orogênico Sergipano

Geologia USP Série Científica, 2021
O Stock Serra da Vaca (SSV, 19 km2) é alongado NE-SW e localiza-se no norte do Domínio Poço Redondo, no Sistema Orogênico Sergipano. A orientação desse stock trunca a foliação metamórfica regional NW-SE.
Douglas Barreto de Oliveira, Herbet Conceição, M. L. S. Rosa   +2 more
semanticscholar   +1 more source