Results 131 to 140 of about 94,563 (267)

Selknamella: a new agglutinated foraminiferal genus from the early Eocene southern high latitudes [PDF]

open access: yes, 2014
A new, unusual agglutinated foraminifera, Selknamella basketi n. gen., n. sp. is described from the Fuegian lower Eocene, Magallanes Basin, southernmost South America.
Arenillas, I.   +3 more
core  

Çevirme Formasyonu’nun (Kırıkkale) Eosen Mikropaleontolojisi

open access: yesVan Yüzüncü Yıl Üniversitesi Mühendislik Fakültesi Dergisi
Kırıkkale güneydoğusunda; Ceritkale ve Hacıaliobası civarında transgresif özellikli Çevirme Formasyonu'nun sığ kesimlerinde yüzeyleyen kireçtaşları yeralmaktadır.
Aslı Karabaşoğlu, Büşra Tezel
doaj  

Supercritical‐flow structures in a Cretaceous submarine channel–lobe transition zone, Point Loma Formation, California

open access: yesThe Depositional Record, Volume 12, Issue 3, June 2026.
We document meter‐scale antidune and cyclic‐step deposits in channel–lobe transition zone (CLTZ) deposits of the Upper Cretaceous Point Loma Formation in San Diego, California. These results provide new insights into sediment transport dynamics in CLTZ environments, which are critical for understanding reservoir connectivity and heterogeneity in ...
Luthfi Saifudin   +4 more
wiley   +1 more source

The United States Magnetotelluric Array and the National Impedance Map

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert   +7 more
wiley   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon   +21 more
wiley   +1 more source

Early Eocene Palynofloral Diversity and <i>Nothofagus</i> Niche Modeling Across Western Gondwana. [PDF]

open access: yesPlants (Basel)
Hinojosa LF   +4 more
europepmc   +1 more source

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

open access: yesGeostandards and Geoanalytical Research, Volume 50, Issue 2, Page 391-406, June 2026.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich   +4 more
wiley   +1 more source

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