Trace element and helium isotope geochemistry of the Cenozoic intraplate volcanism in the East Sea (Sea of Japan): Implications for lithosphere-asthenosphere interaction

Lithos ◽  
2021 ◽  
Vol 388-389 ◽  
pp. 106075
Author(s):  
Wonhee Lee ◽  
Hyunwoo Lee ◽  
Donghwan Kim ◽  
Jonguk Kim ◽  
Jihye Oh ◽  
...  
Keyword(s):  
Trace Element ◽  
Sea Of Japan ◽  
Isotope Geochemistry ◽  
East Sea ◽  
Helium Isotope ◽  
Intraplate Volcanism

Detailed Bathymetry and Submarine Terraces in the Coastal Area of the Dokdo Volcano in the Ulleung Basin, the East Sea (Sea of Japan)

2013 ◽  
Vol 65 ◽  
pp. 523-528 ◽  
Author(s):  
Chang Hwan Kim ◽  
Jae Woo Park ◽  
Myoung Hoon Lee ◽  
Chan Hong Park
Keyword(s):  
Sea Of Japan ◽  
Coastal Area ◽  
East Sea ◽  
Ulleung Basin

TRACE ELEMENT AND Sr-Nd ISOTOPE GEOCHEMISTRY OF FLUORITE FROM THE XIANGSHAN URANIUM DEPOSIT, SOUTHEAST CHINA

2006 ◽  
Vol 101 (8) ◽  
pp. 1613-1622 ◽  
Author(s):  
Y.-h. Jiang ◽  
H.-f. Ling ◽  
S.-y. Jiang ◽  
W.-z. Shen ◽  
H.-h. Fan ◽  
...  
Keyword(s):  
Trace Element ◽  
Uranium Deposit ◽  
Isotope Geochemistry ◽  
Nd Isotope ◽  
Southeast China

Tectonic control on mass‐transport deposit and canyon‐fed fan system in the Ulleung Basin, East Sea (Sea of Japan)

2020 ◽  
Author(s):  
Yongjoon Park ◽  
Donggeun Yoo ◽  
Nyeonkeon Kang ◽  
Boyeon Yi ◽  
Byoungyeop Kim
Keyword(s):  
Mass Transport ◽  
Sea Of Japan ◽  
East Sea ◽  
Ulleung Basin ◽  
Tectonic Control

scholarly journals Nd-Hf isotope geochemistry and lithogeochemistry of the Rambler Rhyolite, Ming VMS deposit, Baie Verte Peninsula, Newfoundland: evidence for slab melting and implications for VMS localization

2021 ◽  
Author(s):  
S J Piercey ◽  
J -L Pilote
Keyword(s):  
Rare Earth ◽  
Trace Element ◽  
Isotope Geochemistry ◽  
Primitive Mantle ◽  
Isotopic Data ◽  
Depleted Mantle ◽  
Element Enrichment ◽  
Felsic Volcanic ◽  
Magmatic History ◽  
Felsic Rocks

New high precision lithogeochemistry and Nd and Hf isotopic data were collected on felsic rocks of the Rambler Rhyolite formation from the Ming volcanogenic massive sulphide (VMS) deposit, Baie Verte Peninsula, Newfoundland. The Rambler Rhyolite formation consists of intermediate to felsic volcanic and volcaniclastic rocks with U-shaped primitive mantle normalized trace element patterns with negative Nb anomalies, light rare earth element-enrichment (high La/Sm), and distinctively positive Zr and Hf anomalies relative to surrounding middle rare earth elements (high Zr-Hf/Sm). The Rambler Rhyolite samples have epsilon-Ndt = -2.5 to -1.1 and epsilon-Hft = +3.6 to +6.6; depleted mantle model ages are TDM(Nd) = 1.3-1.5 Ga and TDM(Hf) = 0.9-1.1Ga. The decoupling of the Nd and Hf isotopic data is reflected in epsilon-Hft isotopic data that lies above the mantle array in epsilon-Ndt -epsilon-Hft space with positive ?epsilon-Hft values (+2.3 to +6.2). These Hf-Nd isotopic attributes, and high Zr-Hf/Sm and U-shaped trace element patterns, are consistent with these rocks having formed as slab melts, consistent with previous studies. The association of these slab melt rocks with Au-bearing VMS mineralization, and their FI-FII trace element signatures that are similar to rhyolites in Au-rich VMS deposits in other belts (e.g., Abitibi), suggests that assuming that FI-FII felsic rocks are less prospective is invalid and highlights the importance of having an integrated, full understanding of the tectono-magmatic history of a given belt before assigning whether or not it is prospective for VMS mineralization.

scholarly journals Major and Trace Element and Sr-Nd-Pb-Hf Isotope Geochemistry of the Fonualei Ridge Spreading Centre, northeast Lau Basin: Mixing between Indian upper mantle and a Samoan Plume Component

2021 ◽  
Author(s):  
Avrinder Singh Sandhu ◽  
Kaj Hoernle ◽  
Maxim Portnyagin ◽  
Reinhard Werner ◽  
Folkmar Hauff ◽  
...  
Keyword(s):  
Trace Element ◽  
Upper Mantle ◽  
Isotope Geochemistry ◽  
Hf Isotope ◽  
Lau Basin
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