Results 21 to 30 of about 7,546 (232)

Gypsum Gardens: Self-Assembled Tubular Structures of Calcium Sulfate with Relevance for the Detection of Extraterrestrial Life. [PDF]

open access: yesAngew Chem Int Ed Engl
Chemical gardens are self‐assembled architectures with “life‐like” morphologies that form in the absence of any biological activity. Here we show that such structures can also be obtained by contacting reservoirs of calcium and sulfate ions, under conditions that plausibly emulate those prevailing on early Mars.
Reigl S   +5 more
europepmc   +2 more sources

Single cell analysis reveals the involvement of the long non-coding RNA Pvt1 in the modulation of muscle atrophy and mitochondrial network [PDF]

open access: yes, 2019
Long non-coding RNAs (lncRNAs) are emerging as important players in the regulation of several aspects of cellular biology. For a better comprehension of their function, it is fundamental to determine their tissue or cell specificity and to identify their
Alessio, Enrico   +13 more
core   +1 more source

Estudo da relação pedomorfogeológica na distribuição de solos com horizontes B textural e B nítico na paisagem de Lavras (MG) Study of the relationship pedo-geomorphological in the soil distribution with argillic horizons in the landscape of Lavras (MG), Brazil

open access: yesRevista Brasileira de Ciência do Solo, 2008
O entendimento das relações entre geologia, geomorfologia e pedologia auxilia nas atividades de classificação dos solos e na avaliação da distribuição pedológica de uma área. Este trabalho foi motivado pela escassez de estudos dessa natureza na região de
Marilusa Pinto Coelho Lacerda   +4 more
doaj   +1 more source

Grundmannite, CuBiSe2, the Se-analogue of emplectite, a new mineral from the El Dragón mine, Potosí, Bolivia [PDF]

open access: yes, 2016
© 2016 E. Schweizerbart'sche Verlagsbuchhandlung Science Publishers. Also published by Deutsche Mineralogische Gesellschaft, Sociedad Española de Mineralogía, Società Italiana di Mineralogia e Petrologia, Société Française de Minéralogie et de ...
Bindi, L   +2 more
core   +1 more source

Petrología y geoquímica de los granitoides peralumínicos de la Faja TIPA, en el borde occidental de Gondwana, sistema de Famatina, Argentina

open access: yesEstudios Geologicos, 1996
En este trabajo se presentan las principales características petrográficas y geoquímicas de las rocas que constituyen las Sierra de Copacabana, flanco oriental de la Sierra de Paimán y extremo NW de la Sierra de Velasco, dentro de la importante ...
J. P. López, A. J. Toselli
doaj   +1 more source

Full‐Field Numerical Simulation of Halite Dynamic Recrystallization From Subgrain Rotation to Grain Boundary Migration

open access: yesJournal of Geophysical Research: Solid Earth, Volume 128, Issue 12, December 2023., 2023
Abstract Full‐field numerical modeling is a useful method to gain understanding of rock salt deformation at multiple scales, but it is quite challenging due to the anisotropic and complex plastic behavior of halite, together with dynamic recrystallization processes. This contribution presents novel results of full‐field numerical simulations of coupled
B. Hao   +6 more
wiley   +1 more source

Petrologia de nova ocorrência dos Anfibolitos Alto Alegre, SE do Cinturão Dom Feliciano, Brasil

open access: yesPesquisas em Geociências, 2020
Na região de Herval, extremo sul do setor brasileiro do Cinturão Dom Feliciano, foram encontradas novas ocorrências dos Anfibolitos Alto Alegre. Esses anfibolitos ocorrem como xenólitos em granitoides de ca. 630-610 Ma da suíte intrusiva Pinheiro Machado,
Rodrigo Chaves Ramos   +2 more
semanticscholar   +1 more source

Caracterização química de cromitas nos maciços de Cromínia e Mairipotaba, Goiás, Brasil

open access: yesGeologia USP. Série Científica, 2010
Corpos metaultramáficos ocorrem alojados tectonicamente nos metassedimentos do Grupo Araxá, e são interpretados como mélange ofiolítica, que aflora no sudeste do estado de Goiás.
Nélson Angeli   +3 more
doaj   +1 more source

Petrología, geoquímica y vinculación regional de las unidades neoproterozoicas-cámbricas de la Sierra de Guasayán, Sierras Pampeanas Orientales, Noroeste de Argentina

open access: yes, 2020
“Petrology, geochemistry and regional relationship of the Neoproterozoic-Cambrian units of the Sierra de Guasayán, Sierras Pampeanas Orientales, Northwest Argentina”.
Laura Iudith Bellos   +7 more
semanticscholar   +1 more source

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