Results 121 to 130 of about 4,118 (239)

Pattern of Radiogenic Heat Production in Rock Samples of Southwestern Nigeria [PDF]

open access: yes, 2020
Survey for radiometric minerals has become important over the last few decades because of the demand for alternative to present common source of energy.
E O Joshua, O O Alabi
core  

Hotspot magmatism and volcanic hazard at Cape Verde through the lens of shipborne surveying and dredging

open access: yesGeology Today, Volume 42, Issue 4, Page 174-182, July/August 2026.
The Cape Verde archipelago is a long‐lived volcanic ocean island chain formed by a mantle plume in the Atlantic Ocean. The archipelago is characterized by ten subaerial islands with complex age relationships, abundant submarine volcanism and variable volcanic hazards.
Brian Oller   +13 more
wiley   +1 more source

Modulation of the northward penetration of Antarctica intermediate waters into the eastern equatorial Indian Ocean under glacial and interglacial conditions

open access: yesScientific Reports
The Indo-Pacific warm pool is the warmest and most dynamic ocean–atmosphere-climate system on Earth and was subject to significant climate changes during the Pleistocene glacial-interglacial transitions.
Sandrine Le Houedec   +3 more
doaj   +1 more source

Multi-isotope characteristics and residence time of saline geothermal waters in the coastal area of Xiamen bay, southeast China

open access: yesJournal of Hydrology: Regional Studies
Study region: Xiamen bay, China: Study focus: The formation and circulation of saline geothermal water in coastal areas are crucial for the application of geothermal resources; however, its residence time and interaction with seawater are poorly ...
Jing Li   +5 more
doaj   +1 more source

Variable Sr Diffusion and Implications for Rb–Sr Biotite Geochronology

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 6, Page 417-439, July 2026.
ABSTRACT The rubidium–strontium (Rb–Sr) system has a long pedigree as a geochronological tool that relies on the application of an isochron approach. In particular, biotite contains strongly radiogenic Rb–Sr isotopes, and thus can yield meaningful crystallisation or cooling ages via this approach. However, the response of the Rb–Sr system in biotite to
Riley Rohrer   +4 more
wiley   +1 more source

Impact‐diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 7, Page 1538-1565, July 2026.
Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie   +11 more
wiley   +1 more source

Isotopes : principles and applications [PDF]

open access: yes
Covering radiogenic, radioactive, and stable isotopes, this comprehensive text contains five sections that present fundamentals of atomic physics; dating methods for terrestrial and extraterrestrial rocks by means of radiogenic isotopes; geochemistry of ...
Faure, Gunter
core  

The North American Repository for Archaeological Isotopes

open access: yesScientific Data
Here, we present the North American Repository for Archaeological Isotopes (NARIA), the largest open-access compilation of previously reported isotopic measurements (n = 28,374) from bioarchaeological samples in North America (i.e., Canada, Greenland ...
Traci N. Billings   +7 more
doaj   +1 more source

Geochemical investigation of impactites from the Boltysh impact structure and possible relationship to early Danian sediments from the Umbria–Marche Basin, Italy

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 7, Page 1309-1332, July 2026.
Abstract Within the Danian Scaglia Rossa Formation appears a regionally correlatable horizon cutting across multiple sections and outcrops within the Umbria–Marche Basin of NE Italy, where it is intercalated with uniform pelagic carbonate successions. This horizon is called “ALE layer” and has tentatively been interpreted as a fine‐grained volcanic ash.
Toni Schulz   +5 more
wiley   +1 more source

The Orenburg Urals Population from the End of the Middle to the Beginning of the Late Bronze Age based on Isotopic Research

open access: yesАрхеология евразийских степей
This study analyzes the ratios of strontium isotopes, and stable isotopes of nitrogen and carbon, in samples from human and animal remains originating from multicultural sites in the Orenburg Urals region dating to the end of the Middle and the beginning
Lidiya V. Kuptsova, Maria B. Mednikova
doaj   +1 more source

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