Young volcanic terrains are windows into early microbial colonization

N Hadland, CW Hamilton, S Duhamel - Communications Earth & …, 2024‏ - nature.com
Volcanic eruptions generate initially sterile materials where biological processes are absent,
allowing for the fresh colonization by new organisms. This review summarizes the …

Secular mantle oxidation across the Archean-Proterozoic boundary: Evidence from V partitioning in komatiites and picrites

RW Nicklas, IS Puchtel, RD Ash, PM Piccoli… - … et Cosmochimica Acta, 2019‏ - Elsevier
The oxygen fugacities of nine mantle-derived komatiitic and picritic systems ranging in age
from 3.55 Ga to modern day were determined using the redox-sensitive partitioning of V …

Timing and origin of magmatism in the Sverdrup Basin, Northern Canada—Implications for lithospheric evolution in the High Arctic Large Igneous Province (HALIP)

DM Dockman, DG Pearson, LM Heaman, SA Gibson… - Tectonophysics, 2018‏ - Elsevier
Cretaceous magmatism in the Sverdrup Basin of Arctic Canada is widely considered to be
part of the circum-Arctic High Arctic Large Igneous Province (HALIP). Recent studies have …

The nature of Earth's first crust

RW Carlson, M Garçon, J O'neil, J Reimink, H Rizo - Chemical Geology, 2019‏ - Elsevier
Recycling of crust into the mantle has left only small remnants at Earth's surface of crust
produced within a billion years of Earth formation. Few, if any, of these ancient crustal rocks …

Trace element analysis of high-Mg olivine by LA-ICP-MS–Characterization of natural olivine standards for matrix-matched calibration and application to mantle …

Y Bussweiler, A Giuliani, A Greig, BA Kjarsgaard… - Chemical …, 2019‏ - Elsevier
The trace element composition of olivine is becoming increasingly important in petrological
studies due to the ubiquity of olivine in the Earth's upper mantle and in primitive magmatic …

[HTML][HTML] A mantle plume origin for the Palaeoproterozoic Circum-Superior large Igneous Province

TJR Ciborowski, MJ Minifie, AC Kerr, RE Ernst… - Precambrian …, 2017‏ - Elsevier
Abstract The Circum-Superior Large Igneous Province (LIP) consists predominantly of
ultramafic-mafic lavas and sills with minor felsic components, distributed as various …

Understanding the Paleoproterozoic Circum-Superior Large Igneous Province constrains the thermal properties of Earth's mantle through time

C Herzberg - Precambrian Research, 2022‏ - Elsevier
Basalts and komatiites in the∼ 1880 Ma Paleoproterozoic Circum-Superior Large Igneous
Province are associated in space and time with the closure/subduction of the Manikewan …

[HTML][HTML] The komatiite-mantle platinum-group element paradox

P Waterton, J Mungall, DG Pearson - Geochimica et Cosmochimica Acta, 2021‏ - Elsevier
The platinum-group element (PGE) contents of komatiites have been used to estimate the
PGE contents of their mantle sources and investigate temporal variations in the PGE …

Trace element contents of mantle-derived magmas through time

SJ Barnes, M Williams, RH Smithies… - Journal of …, 2021‏ - academic.oup.com
A large compilation of quality-curated major and trace element data has been assembled to
investigate how trace element patterns of mafic and ultramafic magmas have varied with …

[HTML][HTML] No mantle residues in the Isua Supracrustal Belt

P Waterton, JM Guotana, I Nishio, T Morishita… - Earth and Planetary …, 2022‏ - Elsevier
A critical component of our understanding of the evolution of Earth's mantle comes from
rocks identified as direct mantle samples. Eoarchaean dunite lenses from the Isua …