[HTML][HTML] A global review of Hf-Nd isotopes: New perspectives on the chicken-and-egg problem of ancient mantle signatures

R Tilhac, GC Begg, SY O'Reilly, WL Griffin - Chemical Geology, 2022 - Elsevier
We present the first global review on the Smsingle bondNd and Lusingle bondHf isotope
systematics of the mantle; it includes all published data on peridotites and pyroxenites from …

Sampling the volatile-rich transition zone beneath Bermuda

SE Mazza, E Gazel, M Bizimis, R Moucha, P Béguelin… - Nature, 2019 - nature.com
Intraplate magmatic provinces found away from plate boundaries provide direct sampling of
the composition and heterogeneity of the Earth's mantle. The chemical heterogeneities that …

Heavy δ57Fe in ocean island basalts: A non-unique signature of processes and source lithologies in the mantle

CR Soderman, S Matthews, O Shorttle… - … et Cosmochimica Acta, 2021 - Elsevier
Lithological heterogeneity is a widely accepted feature of the Earth's mantle, with recycled
crustal material accounting for a significant part of heterogeneity in ocean island basalt (OIB) …

The Origin and Differentiation of CO2-Rich Primary Melts in Ocean Island Volcanoes: Integrating 3D X-Ray Tomography with Chemical Microanalysis of Olivine …

TD van Gerve, DA Neave, P Wieser… - Journal of …, 2024 - academic.oup.com
Constraining the initial differentiation of primary mantle melts is vital for understanding
magmatic systems as a whole. Chemical compositions of olivine-hosted melt inclusions …

[HTML][HTML] Spatial controls on the generation of low-δ18O basalts on São Miguel, Azores

BS Ellis, A Pimentel, C Harris, EA Cortes-Calderon… - Lithos, 2024 - Elsevier
Volcanism in the Azores is generally accepted to result from the decompression melting in
the upper mantle associated with the Azorean plume. Basalts on the island of São Miguel …

The behavior of nickel isotopes during mantle melting

XH Dong, SJ Wang, KN Pang, J Shen, YX Chen… - … et Cosmochimica Acta, 2024 - Elsevier
Mantle-derived mafic rocks show relatively large variations in nickel (Ni) isotopes and mostly
isotopically light compared to the bulk silicate Earth (BSE). Whether this signature is due to …

Rifting of the oceanic Azores Plateau with episodic volcanic activity

B Storch, KM Haase, RHW Romer, C Beier… - Scientific reports, 2020 - nature.com
Abstract Extension of the Azores Plateau along the Terceira Rift exposes a lava sequence
on the steep northern flank of the Hirondelle Basin. Unlike typical tholeiitic basalts of oceanic …

Sulfide mantle source heterogeneity recorded in basaltic lavas from the Azores

CL Waters, JMD Day, S Watanabe, K Sayit… - … et Cosmochimica Acta, 2020 - Elsevier
New highly siderophile element (HSE: Os, Ir, Ru, Pt, Pd, Re) abundance and Os isotopic
compositions, along with major-and trace-element abundance and Sr-Nd-Hf-Pb isotope data …

Geophysical evidence for lithospheric scale asymmetry and inherited mantle in the SE Brazilian-Angola and Newfoundland-Iberia rifted margins

LSA Szameitat, M Heilbron, MANF De Aragão… - Journal of South …, 2023 - Elsevier
Rift systems in the central South Atlantic and the southern Northern Atlantic margins exhibit
anomalous wide ocean-continent transitions, extreme thinning of the continental crust, and …

Constraints on the source of Siberian Trap magmas from Mo isotope evidence

AE Marfin, M Bizimis, PC Lightfoot… - … et Cosmochimica Acta, 2024 - Elsevier
The relative contributions of asthenospheric mantle, lithospheric mantle, and continental
crust in the genesis of the Siberian Traps Large Igneous Province (ST-LIP) remain poorly …