Results 31 to 40 of about 340 (151)

Mapeamento Geológico do Pegmatito Alto do Urubu, município de Picuí (PB), Faixa Seridó, Província Pegmatítica da Borborema

open access: yesRevista Principia, 2018
The Alto do Urubu Pegmatite is located in the municipality of Picuí, northern of Paraíba, in Borborema Pegmatitic Province (PPB), the area that has the greatest concentration of pegmatites in the Brazilian Northeast, corresponding to the eastern part of ...
Raissa Yohana Oliveira Santos   +5 more
doaj   +1 more source

Cadomian metabasites of the Eastern Pyrenees revisited

open access: yesGeologica Acta, 2022
This study presents a new geochemical, petrological, and geochronological U–Pb dataset from Ediacaran metabasites of the Canigó and Cap de Creus massifs, Eastern Pyrenees.
Núria Pujol-Solà   +7 more
doaj   +1 more source

Geocronologia e geoquímica pelo método dos traços nucleares: alguns exemplos de utilização em geologia aplicada

open access: yesBoletim IG-USP. Série Científica, 1988
Various applications of the "Nuclear Track Method" to Applied Geology and case studies are presented. In Geochronology, after a short review of the fission-track (FT) dating principles and main uses, one discuss some typical applications to Metallogeny and Petroleum Geology.
G Poupeau, E Soliani Jr
openaire   +2 more sources

A geologia do holocénico aplicada ao ordenamento da Zona Costeira

open access: yesEstudos do Quaternário / Quaternary Studies, 2000
É apresentada uma síntese dos conhecimentos sobre a estratigrafia e geocronologia das formações sedimentares do Plistocénico-Holocénico, nas quais se identificaram indicadores da alternância de paleoambientes (lagunares, de praia, eólicos) e paleossolos (exemplo, um solo do tipo podzol).
openaire   +2 more sources

Outcrop and subsurface characterisation of a mixed tidal and wave‐influenced coastline (Triassic Red Beds, SE Spain)

open access: yesSedimentology, EarlyView.
ABSTRACT Paralic depositional systems are complex and heterogeneous sedimentary environments, presenting challenges for predicting reservoir architecture and connectivity. Their stratigraphic and facies variability arises from the dynamic interplay between fluvial, tidal and wave processes, and their sensitivity to sea‐level fluctuations, sediment ...
Luis Miguel Yeste   +4 more
wiley   +1 more source

Geology of giant quartz veins and their host rocks from the Eastern Pyrenees (Southwest Europe)

open access: yesJournal of Maps, 2023
Giant Quartz Veins (GQVs) are ubiquitous in different tectonic settings and, besides being often related to hydrothermal ore deposits, also represent large-scale fingerprints of the structural and geochemical history of the rocks in which they are hosted.
Eloi González-Esvertit   +5 more
doaj   +1 more source

GEOLOGIA APLICADA À GESTÃO E PLANEJAMENTO URBANO – ANÁLISE DE MULTICRITÉRIO DA PORÇÃO SUL DA MANCHA URBANA DE NOVA LIMA E HONÓRIO BICALHO

open access: yesGeonomos, 2019
Este estudo visa mostrar a aplicação da geologia em áreas urbanizadas para resolução de problemas geoambientais decorrentes da interação do homem com o meio físico. Muitas vezes estes problemas são ocasionados pela falta de planejamento governamental e conhecimento da sociedade acerca de fatores geológicos, morfológicos, hidrológicos, e suas ...
Carlos V. H. M. Oliveira   +2 more
openaire   +2 more sources

Development of CCMb: A Low‐Mg Calcite Reference Material for In Situ Measurement of δ18O, δ13C and Selected Trace Elements

open access: yesGeostandards and Geoanalytical Research, Volume 50, Issue 3, Page 677-700, September 2026.
Key Points Low‐Mg calcite RM developed for in situ microanalysis applications in palaeoclimatology (δ18O, δ13C; Mg, Sr m/m). New data for calcite CRM IAEA‐603 (δ18O, δ13C by SIMS and GS‐IRMS; Mg m/m). No detectable IMF effect of Mg on SIMS δ18O determinations for mass fractions < 3650 μg g‐1.
Andreas T. Hertwig   +13 more
wiley   +1 more source

Influence of basement rocks on fluid evolution during multiphase deformation: the example of the Estamariu thrust in the Pyrenean Axial Zone [PDF]

open access: yesSolid Earth, 2020
Calcite veins precipitated in the Estamariu thrust during two tectonic events are studied in order to (i) decipher the temporal and spatial relationships between deformation and fluid migration in a long-lived thrust and (ii) determine the influence of ...
D. Muñoz-López   +5 more
doaj   +1 more source

Influence of Oxidation State on the Catalytic Activity of Iron Catalysts for CO2 Fixation to Cyclic Carbonates

open access: yesChemSusChem, Volume 19, Issue 16, 27 August 2026.
Air stable bimetallic iron one‐component systems capable of CO2 cycloaddition to epoxides under 1 bar of pressure of CO2. In this work, one‐component iron catalysts for the atom‐economical reaction of CO2 with epoxides have been used as efficient catalysts for the carbon dioxide cycloaddition into cyclic carbonates in excellent yields.
María P. Caballero   +10 more
wiley   +1 more source

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