Secular evolution of continents and the Earth system

PA Cawood, P Chowdhury, JA Mulder… - Reviews of …, 2022‏ - Wiley Online Library
Understanding of secular evolution of the Earth system is based largely on the rock and
mineral archive preserved in the continental lithosphere. Based on the frequency and range …

LIP printing: Use of immobile element proxies to characterize Large Igneous Provinces in the geologic record

JA Pearce, RE Ernst, DW Peate, C Rogers - Lithos, 2021‏ - Elsevier
LIP printing is a term adapted from forensic science to describe the use of geochemical
proxies for tectonic and petrogenetic fingerprinting of Large Igneous Provinces (LIPs). Here …

Identification, classification, and interpretation of boninites from Anthropocene to Eoarchean using Si-Mg-Ti systematics

JA Pearce, MK Reagan - Geosphere, 2019‏ - pubs.geoscienceworld.org
Boninites are rare, high-Si, high-Mg, low-Ti lavas that have considerable tectonic
significance, especially for recognizing and interpreting episodes of subduction initiation in …

Zinc isotope composition of the Earth and its behaviour during planetary accretion

PA Sossi, O Nebel, HSC O'Neill, F Moynier - Chemical Geology, 2018‏ - Elsevier
The terrestrial planets are depleted in volatile elements with respect to chondritic meteorites,
their possible building blocks. However, the timing, extent and origin of volatile depletion is …

When crust comes of age: on the chemical evolution of Archaean, felsic continental crust by crustal drip tectonics

O Nebel, FA Capitanio, JF Moyen… - … of the Royal …, 2018‏ - royalsocietypublishing.org
The secular evolution of the Earth's crust is marked by a profound change in average crustal
chemistry between 3.2 and 2.5 Ga. A key marker for this change is the transition from …

Origin of the oldest (3600–3200 Ma) cratonic core in the Western Dharwar Craton, Southern India: Implications for evolving tectonics of the Archean Earth

M Jayananda, M Guitreau, KR Aadhiseshan… - Earth-Science …, 2023‏ - Elsevier
This contribution presents a comprehensive synthesis on the origin of oldest (3600–3200
Ma) cratonic core in the Western Dharwar Craton (WDC), Southern India based our new …

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 …

Earth's evolving geodynamic regime recorded by titanium isotopes

Z Deng, M Schiller, MG Jackson, MA Millet, L Pan… - Nature, 2023‏ - nature.com
Earth's mantle has a two-layered structure, with the upper and lower mantle domains
separated by a seismic discontinuity at about 660 km (refs.,). The extent of mass transfer …

Extensive crustal extraction in Earth's early history inferred from molybdenum isotopes

AJ McCoy-West, P Chowdhury, KW Burton, P Sossi… - Nature …, 2019‏ - nature.com
Estimates of the volume of the earliest crust based on zircon ages and radiogenic isotopes
remain equivocal. Stable isotope systems, such as molybdenum, have the potential to …

The Fe and Zn isotope composition of deep mantle source regions: Insights from Baffin Island picrites

AJ McCoy-West, JG Fitton, ML Pons, EC Inglis… - … et Cosmochimica Acta, 2018‏ - Elsevier
Young (61 Ma) unaltered picrites from Baffin Island, northeast Canada, possess some of the
highest 3 He/4 He (up to 50 Ra) seen on Earth, and provide a unique opportunity to study …