Results 81 to 90 of about 315,024 (237)

Heat Generation in Cratonic Mantle Roots—New Trace Element Constraints From Mantle Xenoliths and Implications for Cratonic Geotherms

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Heat generation within the cratonic lithospheric mantle (CLM) is an important but poorly determined parameter for constructing cratonic geotherms. Direct measurement of heat producing element (HPE: K, U, and Th) concentrations in bulk‐rock samples of ...
T. McIntyre   +3 more
doaj   +1 more source

Mineralogy of the HSE in the subcontinental lithospheric mantle —An interpretive review

open access: yesLithos, 2020
We thank Laurie Reisberg, Hannah Hughes and an anonymous referee for their criticism, which greatly improved the quality of our manuscript. We also are indebted to Prof. Sisir K. Mondal for Editorial handling of this work and their constructive edits.
González-Jiménez, J.M.   +15 more
openaire   +4 more sources

Influence of the Hainan Plume on the Deep Thermal Structure and Shallow Geothermal Field of Southeastern Coastal China

open access: yesJournal of Marine Science and Engineering
Thermal anomalies within the lithosphere are an important manifestation of mantle plume–lithosphere interaction. Early studies primarily concentrated on the presence of the Hainan plume and its surface responses, with comparatively little research ...
Huihui Zhang, Lijuan He, Yaqi Wang
doaj   +1 more source

Rapid Cenozoic ingrowth of isotopic signatures simulating “HIMU” in ancient lithospheric mantle: Distinguishing source from process

open access: yes, 2016
Chemical and isotopic heterogeneities in the lithospheric mantle are increasingly being recognised on all scales of examination, although the mechanisms responsible for generating this variability are still poorly understood.
A. McCoy-West, V. Bennett, Y. Amelin
semanticscholar   +1 more source

Re-os isotope constraints on the age of the Lithospheric mantle beneath western Greenland. [PDF]

open access: yes, 2007
Alkaline magmatic activity across Western Greenland (W.G.) provides a record of lithosphere evolution over the last 600 Ma. Ultra Mafic Lamprophyre (UML) magmatism in particular has erupted an exceptional inventory of mantle xenoliths allowing a detailed
Webb, Michelle
core  

Carbonatites from the Southern Brazilian platform: I

open access: yesOpen Geosciences, 2020
We present a comprehensive overview of the geochemical characteristics and evolution of the carbonatites from the southern Brazilian Platform (Paraná Basin).
Speziale Sergio   +5 more
doaj   +1 more source

The development of magmatism along the Cameroon Volcanic Line: Evidence from teleseismic receiver functions

open access: yes, 2012
[1] The Cameroon Volcanic Line (CVL) in West Africa is a chain of Cenozoic volcanism with no clear age progression. The reasons for its existence are unclear, and the nature of its magmatic plumbing system is poorly understood.
Bastow, I.D., Gallacher, R.J.
core   +1 more source

Petrogenetic processes in the ultramafic, alkaline and carbonatitic magmatism in the Kola Alkaline Province: a review [PDF]

open access: yes, 2005
Igneous rocks of the Devonian Kola Alkaline Carbonatite Province (KACP) in NW Russia and eastern Finland can be classified into four groups: (a) primitive mantle-derived silica-undersaturated silicate magmas; (b) evolved alkaline and nepheline syenites; (
Balaganskaya, Elena   +9 more
core   +1 more source

Abnormal lithium isotope composition from the ancient lithospheric mantle beneath the North China Craton

open access: yesScientific Reports, 2014
Lithium elemental and isotopic compositions of olivines in peridotite xenoliths from Hebi in the North China Craton provide direct evidence for the highly variable δ7Li in Archean lithospheric mantle.
Yan-Jie Tang   +6 more
semanticscholar   +1 more source

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