Lithium isotopes may trace subducting slab signatures in Aleutian arc lavas and intrusions
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DOI: 10.1016/j.gca.2019.07.049
Abstract: Abstract We report [Li] and δ7Li values for a well-characterized suite of 52 geographically (165–184°W), compositionally (SiO2 = 46–70 wt.%), and temporally (0–38 Ma) diverse lavas and intrusive samples. The δ7Li in these rocks range from −0.7‰ to… read more here.
Keywords: lavas; may trace; trace subducting; lithium isotopes ... See more keywords
Geochemistry of post-collisional Yolçatı (Bingöl) volcanic rocks in Eastern Anatolia, Turkey
Sign Up to like & getrecommendations! Published in 2020 at "Journal of African Earth Sciences"
DOI: 10.1016/j.jafrearsci.2019.103653
Abstract: Abstract Yolcati volcanic rocks are products of the volcanic activities occurred in collisional and post collisional - post orogenic stages along the suture zone between the Anatolian and the Eurasian plates. The volcanic suite is… read more here.
Keywords: collisional yol; post collisional; geochemistry; lavas ... See more keywords
Ultramafic lavas and high-Mg basaltic dykes from the Othris ophiolite complex, Greece
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DOI: 10.1016/j.lithos.2017.07.015
Abstract: We evaluate the petrography and geochemistry of an unusual suite of subduction-related Phanerozoic high-MgO rocks from the Othris ophiolite complex in Greece, some of which have previously been described as komatiitic lavas. In particular, we… read more here.
Keywords: othris ophiolite; basaltic dykes; complex greece; lavas ... See more keywords
The origin of low-Ca olivine from ultramafic xenoliths and host basaltic lavas in a back-arc setting, James Ross Island, Antarctic Peninsula
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DOI: 10.1016/j.lithos.2019.05.039
Abstract: Abstract The James Ross Island Volcanic Group (JRIVG) at the northern tip of the Antarctic Peninsula is composed of various types of volcanic rocks erupted during the Late Miocene to Late Pleistocene. The sub-aerial lavas… read more here.
Keywords: lavas; olivine; james ross; ultramafic xenoliths ... See more keywords
Magmatic evolution of Low-Ti lavas in the southern Paraná-Etendeka Large Igneous Province
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DOI: 10.1016/j.lithos.2021.106359
Abstract: Abstract The southern section of the Parana-Etendeka large igneous province exposes a sequence of heterogeneous Low-Ti lava packages that range compositionally from olivine tholeiites to rhyolites. The recent advances in the volcanic stratigraphy provide a… read more here.
Keywords: lavas; large igneous; etendeka large; lava ... See more keywords
High–μ signature in lavas of Mt. Oku: Implications for lithospheric and asthenospheric contributions to the magmatism of the Cameroon Volcanic Line (West Africa)
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DOI: 10.1016/j.lithos.2021.106416
Abstract: Abstract This study presents geochemical data for mafic lavas from Mt. Oku to investigate the mantle source for Mt. Oku lavas and regional variations in isotopic ratios along the Cameroon Volcanic Line (CVL). The investigated… read more here.
Keywords: lavas; cameroon volcanic; oku lavas; lavas oku ... See more keywords
Automatic identification of VT substrate in the era of ultrahigh‐density mapping: Do humans or machines emerge victoriously?
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Cardiovascular Electrophysiology"
DOI: 10.1111/jce.15146
Abstract: The legendary story of John Henry is the classic human versus machine tale set in 1800s in West Virginia, United States. John Henry worked on the railroad construction for the Westward expansion of America. He… read more here.
Keywords: mapping; ablation; annotation; lavas ... See more keywords
Geochemical study of Cenozoic mafic volcanism in the west-central Great Basin, western Nevada, and the Ancestral Cascades Arc, California
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DOI: 10.1130/ges01535.1
Abstract: Processes linked to shallow subduction, slab rollback, and extension are recorded in the whole-rock major-, trace-element, and Sr, Nd, and Pb isotopic compositions of mafic magmatic rocks in both time and space over southwestern United… read more here.
Keywords: nevada ancestral; west central; lavas; great basin ... See more keywords
Oxygen isotope geochemistry of mafic phenocrysts in primitive mafic lavas from the southernmost Cascade Range, California
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DOI: 10.2138/am-2017-5588
Abstract: Abstract Previously reported whole-rock δ18O values (5.6–7.8‰) for primitive quaternary mafic lavas from the southernmost Cascades (SMC) are often elevated (up to 1‰) relative to δ18O values expected for mafic magmas in equilibrium with mantle… read more here.
Keywords: mafic lavas; lavas southernmost; geochemistry; lavas ... See more keywords
Sr-Nd-Pb-Ca Isotopes of Holocene Basalts from Jingpohu, NE China: Implications for the Origin of Their Enriched Mantle Signatures
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DOI: 10.3390/min11080790
Abstract: The geochemistry on Holocene lavas from the Jingpohu volcanic field in NE China are compared with other Cenozoic lavas from across the back-arc rift of NE China, in order to constrain their enriched mantle sources.… read more here.
Keywords: lavas; holocene basalts; isotopes holocene; enriched mantle ... See more keywords
Cretaceous magmatic evolution in the Deylaman igneous complex, Alborz zone, Iran: change from extensional to compressional regime
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DOI: 10.7306/gq.1500
Abstract: The Deylaman igneous complex, as a part of the Late Cretaceous rock unit that lies behind the Paleogene Alborz magmatic arc, in the northern Alborz zone, is composed of basaltic sheet lavas alternating with the… read more here.
Keywords: zone; deylaman igneous; igneous complex; lavas ... See more keywords