Metamorphic constraints on Archean tectonics
The tectonic style of the Archean Earth is contentious, with ongoing debate concerning the
dominant surface processes controlled by either a plate tectonics regime or alternative styles …
dominant surface processes controlled by either a plate tectonics regime or alternative styles …
Early continental crust generated by reworking of basalts variably silicified by seawater
The Archaean continental crust comprises two major groups of silicon-rich granitoids: the
tonalite–trondhjemite–granodiorite and granite–monzonite–syenite suites, which differ in …
tonalite–trondhjemite–granodiorite and granite–monzonite–syenite suites, which differ in …
Diamondiferous lamproites of the Luangwa Rift in central Africa and links to remobilized cratonic lithosphere
NS Ngwenya, S Tappe - Chemical Geology, 2021 - Elsevier
Mesozoic diamondiferous lamproite pipes occur along the Kapamba River within the
Luangwa Valley of eastern Zambia, which is a ca. 300–200 Ma old Karoo-age precursor …
Luangwa Valley of eastern Zambia, which is a ca. 300–200 Ma old Karoo-age precursor …
The non-chondritic Ni isotope composition of Earth's mantle
Nickel is a major element in the Earth. Due to its siderophile nature, 93% of Ni is hosted in
the core and the Ni isotope composition of the bulk silicate Earth might inform on the …
the core and the Ni isotope composition of the bulk silicate Earth might inform on the …
Archaean and Proterozoic diamond growth from contrasting styles of large-scale magmatism
Precise dating of diamond growth is required to understand the interior workings of the early
Earth and the deep carbon cycle. Here we report Sm-Nd isotope data from 26 individual …
Earth and the deep carbon cycle. Here we report Sm-Nd isotope data from 26 individual …
[HTML][HTML] The Paleoarchean Buffalo River komatiites: Progressive melting of a single large mantle plume beneath the growing Kaapvaal craton
Several Archean granitoid-greenstone terranes are exposed on the southeastern Kaapvaal
craton in South Africa, but they received little scientific attention compared to the archetypal …
craton in South Africa, but they received little scientific attention compared to the archetypal …
Diamondiferous Paleoproterozoic mantle roots beneath Arctic Canada: A study of mantle xenoliths from Parry Peninsula and Central Victoria Island
J Liu, LE Brin, DG Pearson, L Bretschneider… - … et Cosmochimica Acta, 2018 - Elsevier
While the mantle roots directly beneath Archean cratons have been relatively well studied
because of their economic importance, much less is known about the genesis, age …
because of their economic importance, much less is known about the genesis, age …
Pacific lithosphere evolution inferred from Aitutaki mantle xenoliths
E Snortum, JMD Day, MG Jackson - Journal of Petrology, 2019 - academic.oup.com
Highly siderophile element (HSE: Os, Ir, Ru, Pt, Pd, Re), major and trace element
abundances, and 187Re–187Os systematics are reported for xenoliths and lavas from …
abundances, and 187Re–187Os systematics are reported for xenoliths and lavas from …
Experiment constraints on orthopyroxene enrichment in the Kaapvaal craton lithospheric mantle
M Gao, C Wang, H Xu, J Zhang - Chemical Geology, 2021 - Elsevier
Peridotite xenoliths from the Kaapvaal cratonic lithosphere are characterized by high modal
orthopyroxene (Opx), which is inconsistent with the mineralogy of residues of partial melting …
orthopyroxene (Opx), which is inconsistent with the mineralogy of residues of partial melting …
[PDF][PDF] The genesis and evolution of subcontinental lithospheric mantle beneath Botswana and N. South Africa
The processes that led to the formation and stabilisation of sub continental lithospheric
mantle (SCLM) remain a matter of debate (eg, Pearson & Wittig, 2014; Aulbach et al., 2017) …
mantle (SCLM) remain a matter of debate (eg, Pearson & Wittig, 2014; Aulbach et al., 2017) …