Results 251 to 260 of about 4,634,599 (340)

Hydrous Asthenosphere Underneath the Northern Pannonian Basin

Terra Nova, EarlyView.
ABSTRACT This study reveals the structural hydroxyl content in clinopyroxenes of three cumulate xenoliths from the Nógrád‐Gömör/Novohrad‐Gemer Volcanic Field (northern Pannonian Basin), with values ranging from 275 to 384 ppm. Based on these data, the water content of the equilibrium parental alkali basaltic melt was estimated to be between 1.5 and 2.1 
Levente Patkó, Ákos Kővágó, Monika Huraiová, Szilvia Kövér, Szilveszter Gergely, Patrik Konečný, Vratislav Hurai   +6 more
wiley   +1 more source

Accurate identification of traps and pinch-outs on a stratigraphic reservoir-A case from Hala'alate Mountain in the Junggar Basin, China. [PDF]

PLoS One
Li X, Yang X, Wang H, Wu C, Xie J, Pu Q, Zhang X, Hao X, Li Y.   +8 more
europepmc   +1 more source

The Chamrousse Ophiolite (Western Alps, France): Relict of a Devono‐Carboniferous Ocean

Terra Nova, EarlyView.
ABSTRACT The Chamrousse ophiolite (Western Alps, France) is one of the best‐preserved Variscan relicts of Cambro‐Ordovician oceanisation within the northern Gondwana margin. This study presents new in situ U–Pb isotope analyses on zircon grains from that ophiolite, revealing that the oceanic stage in Chamrousse has occurred 150 Ma later than estimated.
Maureen Gunia, Carole Cordier, Emilie Janots, Adrien Vezinet, Valentine Milloud, Jean‐Baptiste Jacob, Stéphane Guillot   +6 more
wiley   +1 more source

Schist Belts of the Benin‐Nigeria Shield Reveal a Neoproterozoic History

Terra Nova, EarlyView.
ABSTRACT Belts of metasedimentary rocks (schist belts) in the Benin‐Nigeria Shield (BNS) are investigated for the first time using U–Pb dating and Lu‐Hf isotope analysis of detrital zircons. We report maximum depositional ages that place their deposition firmly in the Neoproterozoic and link them with strata in the Dahomey Belt, the central African ...
Axel Hofmann, Silas Dada, Samuel B. Olobaniyi, Isaac Ajigo, Marlina Elburg, Fabricio A. Caxito, Andrey Bekker   +6 more
wiley   +1 more source

Molting in early Cambrian armored lobopodians. [PDF]

Commun Biol
Chen A, Vannier J, Guo J, Wang D, Gąsiorek P, Han J, Ma W.   +6 more
europepmc   +1 more source

Drainage Divide Migration in Response to Asymmetric Uplift at Eastern Qinling, China

Terra Nova, EarlyView.
ABSTRACT Drainage divide migration shapes landscape, sediment patterns, and biodiversity, which is affected by a variety of factors. While geomorphic index and numerical simulations have been employed to investigate divide migration, previous studies ignore the present‐day vertical velocity field.
Wei Li, Junjie Zou, Shao Liu, Hao Zhang
wiley   +1 more source

Yuzhoua juvenilis: Another Angiosperm Seen in the Early Permian? [PDF]

Life (Basel)
Wang X, Lei Y, Fu Q.
europepmc   +1 more source

Analysing Temporal Variations in Radon Concentrations: Identifying Trends and Changes

Terra Nova, EarlyView.
ABSTRACT Radon is a well‐known precursor for geodynamic events such as earthquakes and volcanic tremors. Radon concentration variations in soil gas have been monitored worldwide, and extreme radon values have been identified as radon anomalies associated with geodynamic events.
Mutlu İçhedef, İlayda Sapmaz, Caner Taşköprü, Vivek Walia   +3 more
wiley   +1 more source

Deep learning for enhanced spectral analysis of MA-XRF datasets of paintings. [PDF]

Sci Adv
Preisler Z, Andolina R, Busacca A, Caliri C, Miliani C, Romano FP.   +5 more
europepmc   +1 more source

Intermittent Brittle and Ductile Deformation as Recorded by Dating of Ultramylonites and Pseudotachylytes in Extending Continental Crust (Ivrea‐Verbano Zone, Italy)

Terra Nova, EarlyView.
ABSTRACT Mylonites and pseudotachylytes play a crucial role in defining the rheology of extending continental crust. In this context, determining the age of brittle‐ductile deformation is fundamental to understanding the rifting evolution stages. Here, we investigate the Premosello Shear Zone, an extensional structure of the Ivrea‐Verbano lower crust ...
Stefania Corvò, Chiara Montemagni, Stefano Zanchetta, Antonio Langone   +3 more
wiley   +1 more source