Results 131 to 140 of about 51,712 (271)

The Yilgarn Craton western Australia: A tectonic synthesis [PDF]

open access: yes
The Yilgarn Craton in Western Australia is one of the larger contiguous preserved Archaean crustal fragments, with an area of about 650,000 square kilometres. Of this, by area, about 70% is granitoid and 30% greenstone.
Fripp, R. E. P.
core   +1 more source

X‐ray computed tomography study of terrestrial analog cores in preparation for Mars sample return

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Mars Sample Return (MSR) is expected to transform planetary science by providing unprecedented access to pristine Martian material. Initial characterization in the sample receiving facility (SRF) will rely on nondestructive techniques such as X‐ray computed tomography (XCT) to document the condition, distribution, and internal features of ...
Sophie Benaroya   +3 more
wiley   +1 more source

Rb-Sr Systematics of the Ungrouped Achondrites [PDF]

open access: yesGoldschmidt Abstracts, 2020
Evgenii Krestianinov, Yuri Amelin
openaire   +1 more source

Drelów, the 13th and latest meteorite fall in Poland—A typical L6 chondrite with shock veins

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract On Tuesday, February 18, 2025, at 18:04:14 local time, residents of Poland observed a bright fireball registered by many Polish fireball stations belonging to the Skytinel Network established a few months before by Mateusz Żmija. Thus, the meteoroid's orbit, atmospheric trajectory, and the strewn field were calculated, and over 70 fragments ...
Addi Bischoff   +18 more
wiley   +1 more source

40Ar-39Ar and Rb-Sr Geochronology

open access: yes, 2019
Fil: Camacho, A. Servicio Geológico Minero Argentino; Argentina.
openaire   +1 more source

Initial Isotopic Heterogeneities in ZAGAMI: Evidence of a Complex Magmatic History [PDF]

open access: yes
Interpretations of Zagami s magmatic history range from complex [1,2] to relatively simple [3]. Discordant radiometric ages led to a suggestion that the ages had been reset [4].
Nyquist, L. E.   +2 more
core   +1 more source

Rb-Sr And Sm-Nd Ages, and Petrogenesis of Depleted Shergottite Northwest Africa 5990 [PDF]

open access: yes, 2011
Northwest Africa (NWA) 5990 is a very fresh Martian meteorite recently found on Hamada du Draa, Morocco and was classified as an olivine-bearing diabasic igneous rock related to depleted shergottites [1].
Irving, A. J.   +3 more
core   +1 more source

Beyond species means – the intraspecific contribution to global wood density variation

open access: yesNew Phytologist, EarlyView.
Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fabian Jörg Fischer   +105 more
wiley   +1 more source

Global and Local Deviance Effects in the Processing of Temporal Patterns

open access: yesAnnals of the New York Academy of Sciences, EarlyView.
ABSTRACT Perceptual and sensorimotor events are often experienced as temporal patterns, that is, identified as sequences based on their temporal features. While current timing models propose separate mechanisms supporting the processing of single intervals and temporal patterns, they leave partially unclear whether the latter entails the processing of ...
Dunia Giomo   +3 more
wiley   +1 more source

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