Results 101 to 110 of about 112,509 (371)

Study of Garnets in Hellenistic–Roman Jewellery From the Collections of the Archaeological Museum of Thessaloniki, Greece

Journal of Raman Spectroscopy, EarlyView.
This study presents the gemological analysis of 25 garnets from Hellenistic and Roman jewellery in the Archaeological Museum of Thessaloniki using mobile Raman spectroscopy and micro‐EDXRF. The garnets are classified into three geochemical clusters, with notable differences in distribution between Thessaloniki and Pydna, suggesting distinct trading ...
Maria Nikopoulou, Stefanos Karampelas, Evangelia Tsangaraki, Lambrini Papadopoulou, Christos Katsifas, Ioannis Nazlis, Annareta Touloumtzidou, Vasilios Melfos, Nikolaos Kantiranis   +8 more
wiley   +1 more source

Palaeoproterozoic prograde metasomatic-metamorphic overprint zones in Archean tonalitic gneisses, eastern Finland [PDF]

Bulletin of the Geological Society of Finland, 1999
Several occurrences of coarse-grained kyanite rocks are exposed in the Archaean area of eastern Finland in zones trending predominantly northwest-southeast that crosscut all the Archaean structures and, locally, the Palaeoproterozoic metadiabase dykes ...
M. Pajunen, M. Poutiainen
doaj   +1 more source

Determine the Elemental Composition of Minerals From Complex Solid‐Solution Series by Raman Spectroscopy: Implications for Mars Exploration Missions

Journal of Raman Spectroscopy, EarlyView.
This study presents a hierarchical Raman‐based classification model for determining the elemental composition of garnets within complex solid‐solution systems. The workflow combines spectral preprocessing, dimensionality reduction, and two‐level classification: first distinguishing between pyralspite and ugrandite groups, and then classifying ...
Sofia Julve‐Gonzalez, Jose Antonio Manrique, Marco Veneranda, Pilar Renedo, Paula Xiaozhen Vega, Iván Reyes‐Rodríguez, María Mayoral, Sergio Jiménez, Lidia Asenjo, Aurelio Sanz‐Arranz, Elena Charro Huerga, Jaime Delgado Iglesias, Olga Prieto‐Ballesteros, Andoni Moral, Emmanuel Alexis Lalla, Belen Barrios‐Areinamo, Fernando Rull, Guillermo Lopez‐Reyes   +17 more
wiley   +1 more source

A large, infrequent ecosystem subsidy (cicada carcasses) and warming additively accelerate development and increase growth of larval amphibians

Limnology and Oceanography, EarlyView.
Abstract Many ecosystems receive resource subsidies that affect productivity and food webs. Ecosystem subsidies vary in quantity, quality, and timing, and effects are often mediated by environmental factors, including temperature. Deposition of periodical cicada carcasses into ponds represents a large, high‐quality, infrequent subsidy.
Elizabeth N. Gallagher, María J. González, Alexis D. Perminter, Michael J. Vanni   +3 more
wiley   +1 more source

Mineralogy and metabasites formation conditions from ophiolite association at northern slope of Kuznetsk Alatau

Литосфера, 2017
The ophiolites of the northern slope of the Kuznetsk-Alatau Ridge are the most representative fragments of the sub-oceanic crust in the region. In this article, we present the results of a study of the metabasites from ophiolite paragenesis of the ...
N. A. Dugarova, P. A. Tishin, I. F. Gertner, T. S. Krasnova   +3 more
doaj   +1 more source

An investigation into the controls of granite plutonism in the Sierra da Freita region, Northern Portugal [PDF]

, 2012
The Serra da Freita region of north central Portugal was chosen for study as it displays the complex relationships between regional structure, plutonism, regional and contact metamorphism typical of this part of Iberia.
Reavy, Reginald John
core  

Deeply subducted continental fragments - Part 2: Insight from petrochronology in the central Sesia Zone (western Italian Alps) [PDF]

, 2018
Subducted continental terranes commonly comprise an assembly of subunits that reflect the different tectono-metamorphic histories they experienced in the subduction zone.
Burn, Marco, Engi, Martin, Giuntoli, Francesco, Kunz, Barbara Eva, Lanari, Pierre   +4 more
core   +3 more sources

Iterative Modeling via Structural Diffusion (IMSD): Exploring Fold‐Switching Pathways in Metamorphic Proteins Using AlphaFold2‐Based Generative Diffusion Model UFConf

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Metamorphic proteins (MPs) can fold into two or more distinct spatial structures. Increasing interest in MPs has spurred the search for computational tools to predict proteins fold‐switching potential and model their refolding pathways. Here we address this problem by using the recently reported generative diffusion predictor UFConf, based on ...
Dmitrii A. Luzik, Nikolai R. Skrynnikov
wiley   +1 more source

Field Studies of the Archean in Grand Canyon [PDF]

, 1933
The oldest rocks of Arizona which form the precipitous walls of the inner or granite gorge of the Grand Canyon have never received the intensive study that has been given to their counterparts over the great northeastern plains of Canada, in the ...
Campbell, Ian, Maxson, John
core  

The role of developmental plasticity in eco‐phenotypic population dynamics

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Individual variation in development can strongly impact population density via its impact on demography. When this variation in development is caused by developmental plasticity, the resulting effects on population density are characterised as ‘eco‐phenotypic dynamics ...
Lukas H. A. Edwards, Isabel M. Smallegange   +1 more
wiley   +1 more source