Oxygen isotope ratios and rare earth elements in 3.3 to 4.4 Ga zircons: Ion microprobe evidence for high δ 18 O continental crust and oceans in the Early Archean

  title={Oxygen isotope ratios and rare earth elements in 3.3 to 4.4 Ga zircons: Ion microprobe evidence for high $\delta$ 18 O continental crust and oceans in the Early Archean},
  author={William H. Peck and John W. Valley and Simon A. Wilde and Colin M. Graham},
  journal={Geochimica et Cosmochimica Acta},

Figures and Tables from this paper

4.4 billion years of crustal maturation: oxygen isotope ratios of magmatic zircon
Analysis of δ18O in igneous zircons of known age traces the evolution of intracrustal recycling and crust-mantle interaction through time. This record is especially sensitive because oxygen isotope


Oxygen-isotope evidence from ancient zircons for liquid water at the Earth's surface 4,300 Myr ago
In situ U–Pb and oxygen isotope results for detrital zircons found within 3-Gyr-old quartzitic rocks in the Murchison District of Western Australia are consistent with the presence of a hydrosphere interacting with the crust by 4,300 Myr ago and are postulated to form from magmas containing a significant component of re-worked continental crust.
Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago
The discovery of a detrital zircon with an age as old as 4,404 ± 8 Myr is reported, about 130 million years older than any previously identified on Earth and represents the earliest evidence for continental crust and oceans on the Earth.
Neodymium and lead isotope evidence for enriched early Archaean crust in North America
THERE has been considerable debate as to whether isotopically enriched continental crust was an important geochemical reservoir in earliest Archaean times. Fundamental questions such as the volume of
3.96 Ga zircons from an Archean quartzite, Beartooth Mountains, Montana
U-Pb isotopic systematics of detrital zircons incorporated in a middle Archean quartzite from the Beartooth Mountains, Montana, were investigated with the SHRIMP ion microprobe. These new data reveal
Ion microprobe identification of 4,100–4,200 Myr-old terrestrial zircons
We report here the existence of detrital zircons from Western Australia which are far older than any known terrestrial rocks. They are from quartzites at Mt Narryer (Fig. 1), a locality which has
Hydrothermal alteration of oxygen isotope ratios in quartz phenocrysts, Kidd Creek mine, Ontario: Magmatic values are preserved in zircon
Zircons from rhyolites hosting the Kidd Creek volcanogenic massive sulfide deposit preserve magmatic oxygen isotope ratios (δ 18 O = 5.4‰ ± 0.3‰, n = 11) that are indistinguishable from average