[HTML][HTML] Secular change and the onset of plate tectonics on Earth

RM Palin, M Santosh, W Cao, SS Li… - Earth-Science …, 2020 - Elsevier
The Earth as a planetary system has experienced significant change since its formation c.
4.54 Gyr ago. Some of these changes have been gradual, such as secular cooling of the …

[HTML][HTML] Uranium mobility in organic matter-rich sediments: A review of geological and geochemical processes

SA Cumberland, G Douglas, K Grice, JW Moreau - Earth-Science Reviews, 2016 - Elsevier
Uranium (U) is of enormous global importance because of its use in energy generation,
albeit with potential environmental legacies. While naturally occurring U is widespread in the …

“Fingerprinting” tectono-magmatic provenance using trace elements in igneous zircon

CB Grimes, JL Wooden, MJ Cheadle… - Contributions to Mineralogy …, 2015 - Springer
Over 5300 recent SHRIMP-RG analyses of trace elements (TE) in igneous zircon have been
compiled and classified based on their original tectono-magmatic setting to empirically …

Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon

EA Bell, P Boehnke, TM Harrison… - Proceedings of the …, 2015 - National Acad Sciences
Evidence of life on Earth is manifestly preserved in the rock record. However, the microfossil
record only extends to∼ 3.5 billion years (Ga), the chemofossil record arguably to∼ 3.8 Ga …

Forty years of TTG research

JF Moyen, H Martin - Lithos, 2012 - Elsevier
TTGs (tonalite–trondhjemite–granodiorite) are one of the archetypical lithologies of
Archaean cratons. Since their original description in the 1970s, they have been the subject …

Ce and Eu anomalies in zircon as proxies for the oxidation state of magmas

D Trail, EB Watson, ND Tailby - Geochimica et cosmochimica acta, 2012 - Elsevier
Chondrite normalized rare earth element (REE) patterns of zircons generally have enriched
Ce values relative to La and Pr, and depleted Eu values relative to Sm and Gd. High Ce …

The composition of zircon and igneous and metamorphic petrogenesis

PWO Hoskin, U Schaltegger - Reviews in mineralogy …, 2003 - pubs.geoscienceworld.org
Zircon is the main mineral in the majority of igneous and metamorphic rocks with Zr as an
essential structural constituent. It is a host for significant fractions of the whole-rock …

Zircon trace element geochemistry: partitioning with garnet and the link between U–Pb ages and metamorphism

D Rubatto - Chemical geology, 2002 - Elsevier
With the aim to link zircon composition with paragenesis and thus metamorphic conditions,
zircons from eclogite-and granulite-facies rocks were analysed for trace elements using LA …

Crystallization thermometers for zircon and rutile

EB Watson, DA Wark, JB Thomas - Contributions to Mineralogy and …, 2006 - Springer
Zircon and rutile are common accessory minerals whose essential structural constituents, Zr,
Ti, and Si can replace one another to a limited extent. Here we present the combined results …

Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago

SA Wilde, JW Valley, WH Peck, CM Graham - Nature, 2001 - nature.com
No crustal rocks are known to have survived since the time of the intense meteor
bombardment that affected Earth between its formation about 4,550 Myr ago and 4,030 Myr …