Results 71 to 80 of about 16,262 (232)
Geoneutrinos and reactor antineutrinos at SNO+ [PDF]
, 2016 In the heart of the Creighton Mine near Sudbury (Canada), the SNO+ detector is foreseen to observe almost in equal proportion electron antineutrinos produced by U and Th in the Earth and by nuclear reactors.
Baldoncini, M +6 more
core +2 more sources
Геохімія техногенезу, 2019 The paper presents the results of mineralogical, petrographic, electron microscopy, isotopic and X-ray structural studies of Paleoprotero-zoic high-carbon schungite-like rocks of the Mlynkivska area (Pravoberezhnyi district of the Kryvyi Rih-Kremenchuk ...
Yatsenko V. +5 more
doaj +1 more source
Paleoproterozoic evolution of Fennoscandia and Greenland
Episodes, 2008 The Paleoproterozoic evolution of Fennoscandia and Greenland can be divided into major rifting and orogenic stages. The Paleoproterozoic rifting of Fennoscandia started with 2.505‐2.1 Ga, multiphase, southwest-prograding, intraplate rifting. Both Fennoscandia and Greenland experienced 2.1‐ 2.04 Ga drifting and separation of their Archean cratons by ...
Raimo Lahtinen +2 more
openaire +2 more sources
Dating the cyanobacterial ancestor of the chloroplast [PDF]
, 2009 Cyanobacteria have played a pivotal role in the history of life on Earth being the first organism to carry out oxygenic photosynthesis, which changed atmospheric chemistry and allowed the evolution of Eukarya.
Amanda Castillo +2 more
core +1 more source
An iron shuttle for deepwater silica in Late Archean and early Paleoproterozoic iron formation [PDF]
, 2009 Iron formations are typically thinly bedded or laminated sedimentary rocks containing 15% or more of iron and a large proportion of silica (commonly > 40%). In the ca.
Fischer, Woodward W., Knoll, Andrew H.
core +1 more source
Brazilian Journal of Geology, 2019 The Buritirama Formation (BF) occurs at the extreme north of the Carajás Province, close to the contact with the Bacajá domain, in the southeastern portion of the Amazon Craton (Brazil). The BF consists of a 40 km long, ca.
Silas Santos Salgado +3 more
doaj +1 more source
, 2019 The field workshop on the Paleoproterozoic record of the São Francisco craton (SFC) has been designed to provide a view on the aspects of the Paleoproterozoic geology.
Teixeira, Wilson +2 more
openaire +1 more source
New monazite U-Pb age constraints on the evolution of the Paleoproterozoic Vaasa granitoid batholith, western Finland [PDF]
, 2016 The Vaasa batholith, western Finland, is a large, peraluminous granitoid pluton that crystallized at 1.88-1.87 Ga during the culmination of the Svecofennian orogeny.
Hölttä, Pentti +4 more
core +2 more sources
Primordial magnetotaxis in putative giant paleoproterozoic magnetofossils
Proceedings of the National Academy of SciencesMagnetotactic bacteria produce chains of nanoscopic iron minerals used for navigation, which can be preserved over geological timescales in the form of magnetofossils. Micrometer-sized magnetite crystals with unusual shapes suggesting a biologically controlled mineralization have been found in the geological record and termed giant magnetofossils.
Ualisson Donardelli Bellon +4 more
openaire +3 more sources
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Topographic highlands commonly develop along convergent plate boundaries through long‐term processes such as subduction and continental collision. However, the pre‐Cenozoic mountain‐building history of deep‐time orogenic systems in northeastern Pangaea remains poorly constrained due to later tectonic overprinting and denudation.
Heng Peng +9 more
wiley +1 more source