Results 121 to 130 of about 771,265 (286)

Processes and Patterns of Dolomite Precipitation in Aptian Pre‐Salt Deposits of Santos Basin, Brazil

Journal of Petroleum Geology, EarlyView.
ABSTRACT The Aptian pre‐salt lacustrine carbonates represent the most significant oil exploration target along the South Atlantic margin. Dolomitization of the Santos Basin Barra Velha Formation (BVF) is critical for reservoir quality, yet its origin, patterns, and evolution remain poorly understood.
J. T. F. Oste, R. Fricks Sayão, L. F. De Ros, L. Borghi   +3 more
wiley   +1 more source

Mantle dynamics and petrogenesis of Gomer basalts in the Northwestern Ethiopia: A geochemical perspective

Open Geosciences
This study investigates the petrological and geochemical characteristics of basalts from the Gomer area in the Northwestern Ethiopian Volcanic Province to explore their petrogenesis and mantle source characteristics.
Wondem Habtamu, Teferi Minyahl, Jothimani Muralitharan, Wondem Demeke   +3 more
doaj   +1 more source

The Zagros Core: Deformation of the continental lithospheric mantle [PDF]

The Zagros of Iran form one of the youngest collisional orogenic belts on Earth. At shallow depths, shortening across the Zagros is accommodated by folding in the sediments, high-angle thrust faulting in the basement and thickening of the lower crust ...
Barron, J., Debayle, E., McKenzie, D. P., Tatar, M., Priestley, K. F.   +4 more
core   +1 more source

Periodontitis and Diabetes: Mechanistic Evidence of a Circular Relationship

Journal of Periodontal Research, EarlyView.
This narrative review aimed to explore the underlying mechanisms that connect periodontitis to diabetes (and vice versa) and that influence disease susceptibility, progression and response to treatment. ABSTRACT The circular relationship between periodontitis and diabetes mellitus is one of the most established oral‐systemic links.
Philip M. Preshaw, Ren Jie Jacob Chew, Charlene Enhui Goh, Ali A. Abdulkareem, Dana T. Graves   +4 more
wiley   +1 more source

A Magnetotelluric Study of Mantle Heterogeneities Beneath the Northeastern United States

Geochemistry, Geophysics, Geosystems
Analysis of magnetotelluric (MT) data across the northern Appalachian region reveals significant mantle heterogeneity. By inverting a subset of long‐period EarthScope USArray MT data, we constructed a three‐dimensional electrical resistivity model that ...
Jae Deok Kim, Rob. L. Evans
doaj   +1 more source

Neurite Imaging Reveals Widespread Alterations in Grey Matter Neurite Morphology in Obstructive Sleep Apnoea

Journal of Sleep Research, EarlyView.
ABSTRACT Obstructive sleep apnoea (OSA) is a common chronic multisystem disorder, and cortical structural alterations have been detected via conventional neuroimaging techniques. Recent advances in diffusion‐weighted imaging have yielded novel techniques for investigating neural microstructure, which may potentially offer supplementary insights into ...
Liping Qi, Qiu Chu, Ya‐Jie Liu, Rong‐Hua Li, Ling Wen, Yong‐Zhong Lin   +5 more
wiley   +1 more source

A Microkrystite from the Australasian Tektite/Microtektite Strewn Field

Meteoritics &Planetary Science, EarlyView.
Abstract Microkrystites are glassy impact spherules. They contain primary crystallites carrying information on the physical and chemical conditions prevailing during vaporization, melting, and ejection in large impact cratering events. We report on the geochemistry and mineralogy down to nanometer scale of the first microkrystite (ODP1144A,14) from the
Matteo Del Rio, Luigi Folco, Matteo Masotta, Ana Černok, Enrico Mugnaioli   +4 more
wiley   +1 more source

Ancient storage of anomalous mercury isotope signatures in the Earth’s transition zone

Nature Communications
Characterizing the mantle transition zone (MTZ) is essential for understanding Earth’s evolution and dynamics. Petrological, geochemical, and geophysical evidence suggests that the MTZ may host subducted slabs containing sediments and volatiles ...
Rong Xu, Runsheng Yin, William M. White, Michael Bizimis, Yue Cai, Junbo Zhang, Chunfei Chen, Zhendong Tian, Ting Ruan, Yibing Li, Ganglan Zhang, Liang Liu, Zhongjie Bai, Meifu Zhou, Yongsheng Liu   +14 more
doaj   +1 more source

CaSiO3 perovskite at lower mantle pressures [PDF]

, 2005
We investigate by first-principles the structural behavior of CaSiO3 perovskite up to lower mantle pressures. We confirm that the cubic perovskite modification is unstable at all pressures.
Price, GD, Wentzcovitch, R, Caracas, R, Brodholt, J   +3 more
core  

Fault‐Controlled Permeability: A Key Parameter in Geothermal Electricity Production Assessment

Terra Nova, EarlyView.
ABSTRACT Geothermal energy is central to the global green energy transition, but its development has long focused on regions with positive thermal anomalies. Through a semi‐quantitative global‐scale review and spatial analysis of 361 geothermal sites, we show that 56.2% of global geothermal electricity production occurs in regions with thermal ...
Vincent Roche, Gaétan Milesi
wiley   +1 more source