Results 81 to 90 of about 7,546 (232)
How the Sima de los Huesos was won
Abstract Although the first discovery of a human fossil in the Sima de los Huesos took place in 1976, systematic excavations did not begin there until 1984. Since then, this site has been continuously excavated in month‐long camps. The site is dated by different radiometric techniques to between 430,000 and 300,000 years ago.
Juan‐Luis Arsuaga +10 more
wiley +1 more source
Este trabalho utiliza metodologias que permitem o estudo de evolução da paisagem a longo-prazo (termocronologia por traço de fissão em apatita - TFA) e curto-prazo (análise morfométrica da rede de drenagem, pelo índice de relação declividade – extensão ...
Daniel Henrique de Souza +3 more
doaj +1 more source
Leitzako Failari (Nafarroa) loturiko arroka metamorfiko prealpetarren petrologia [PDF]
MENDIA ARANGUREN, M.S.
doaj +1 more source
Genetic variation in eggshell crystal size and orientation is large and these traits are correlated with shell thickness and are associated with eggshell matrix protein markers [PDF]
The size and orientation of calcium carbonate crystals influence the structure and strength of the eggshells of chickens. In this study, estimates of heritability were found to be high (0.6) for crystal size and moderate (0.3) for crystal orientation ...
Ahmed +28 more
core +1 more source
Volcanic Unrest After the 2021 Eruption of La Palma
Abstract La Palma, Canary Islands, had its largest historical eruption in 2021. From January 2022 to May 2023 there were >2,100 seismic events, primarily at depths ≤20 km, prompting us to update the deformation and modeling study, using interferometric synthetic aperture radar observations and a last generation interpretation tool.
José Fernández +5 more
wiley +1 more source
Millora de competències transversals mitjançant el treball col·laboratiu amb wikis [PDF]
L'aplicació de wikis en el desenvolupament de treballs col·laboratius és una eina virtual que millora la gestió de la informació científica que es recull i en facilitat la disponibilitat a tots els membres del grup.
Aulinas Juncà, Meritxell +4 more
core
Magmatic Storage and Volatile Fluxes of the 2021 La Palma Eruption
Abstract The 2021 La Palma eruption (Tajogaite) was unprecedented in magnitude, duration, and degree of monitoring compared to historical volcanism on La Palma. Here, we provide data on melt inclusions in samples from the beginning and end of the eruption to compare the utility of both melt and fluid inclusions as recorders of magma storage.
K. Dayton +6 more
wiley +1 more source
O Batólito Pelotas é constituído por suítes graníticas com idades U/Pb (em zircão, Evaporação e SHRIMP) e Pb/Pb (em zircão, por evaporação) situadas no intervalo de 575 a 633 Ma, com um padrão de idade mais antigo entre 625 e 635 Ma (Suíte Pinheiro ...
Ruy Paulo Philipp +2 more
doaj +1 more source
Petrología de Malpartida de Plasencia (Cáceres) [PDF]
Los leucogranitos se han producido durante momentos en torno a la fase tardía principal. Tanto sus relaciones con rocas migmatíticas como sus características petrográficas permiten establecer que se trata de granitos originados por anatexia de niveles ...
Ruíz García, Casilda
core +1 more source
The present article intends to gather the available information about consolidants and water repellents, which were applied in restoration campaigns in Portuguese monuments.The survey was based on documents from the ex-DGEMN (General Directorate for ...
M. Pamplona +3 more
doaj +1 more source

