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

@article{Wilde2001EvidenceFD,
  title={Evidence from detrital zircons for the existence of continental crust and oceans on the Earth 4.4 Gyr ago},
  author={S. Wilde and J. Valley and W. Peck and C. Graham},
  journal={Nature},
  year={2001},
  volume={409},
  pages={175-178}
}
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, the age of the oldest known components in the Acasta Gneiss of northwestern Canada. But evidence of an even older crust is provided by detrital zircons in metamorphosed sediments at Mt Narryer and Jack Hills in the Narryer Gneiss Terrane, Yilgarn Craton, Western Australia, where grains as old as ∼4,276 Myr have been found. Here… Expand

Figures, Tables, and Topics from this paper

Hf isotopes in detrital and inherited zircons of the Pilbara Craton provide no evidence for Hadean continents
Predictions of large volumes of stabilized continental crust by the early Archaean stand in stark contrast to the actual amount of pre-3.5 Ga rocks presently exposed on Earth's surface. The PilbaraExpand
The role of detrital zircons in Hadean crustal research
Abstract Meso-Archean sedimentary sequences at Mt. Narryer and the Jack Hills of the Narryer Terrane in Western Australia's Yilgarn Craton contain detrital zircon grains with ages as old as 4.37 Ga,Expand
No evidence for Hadean continental crust within Earth’s oldest evolved rock unit
Little is known about the character of the Hadean crust. Geochemical analyses of the 4-billion-year-old Acasta Gneiss from Canada suggest Earth’s earliest crust formed from a mafic reservoir, similarExpand
Episodic growth of the Gondwana supercontinent from hafnium and oxygen isotopes in zircon
TLDR
The first study that integrates hafnium and oxygen isotopes, all measured in situ on the same, precisely dated detrital zircon grains reveals that crust generation in part of Gondwana was limited to major pulses at 1.9 and 3.3 Gyr ago, and that the zircons crystallized during repeated reworking of crust formed at these times. Expand
Iceland is not a magmatic analog for the Hadean: Evidence from the zircon record
Abstract Tangible evidence of Earth's earliest (Hadean; >4.0 Ga) crust, and the processes and materials that contributed to its formation, exists almost entirely in a record of detrital zircon fromExpand
New evidence for ~4.45Ga terrestrial crust from zircon xenocrysts in Ordovician ignimbrite in the North Qinling Orogenic Belt, China
Abstract Evidence for the earliest known terrestrial crust comes predominantly from Jack Hills in Western Australia, where hafnium isotopic results from > 3.8 Ga detrital zircons indicate crustalExpand
Detrital zircon evidence for change in geodynamic regime of continental crust formation 3.7–3.6 billion years ago
Abstract The nature of the early terrestrial crust and how it evolved through time remains highly controversial. Whether conventional plate tectonics operated in the Hadean and early Archean and whenExpand
Hadean diamonds in zircon from Jack Hills, Western Australia
TLDR
Mineralogical features of the Jack Hills diamonds resemble those of diamonds formed during ultrahigh-pressure metamorphism and imply a relatively thick continental lithosphere and crust–mantle interaction at least 4,250 million years ago. Expand
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 isotopeExpand
Reworking of Earth's first crust: Constraints from Hf isotopes in Archean zircons from Mt. Narryer, Australia
Abstract Discoveries of >4 Ga old zircon grains in the northwest Yilgarn of Western Australia led to the conclusion that evolved crust formed on the Earth within the first few 100 Ma after accretion.Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 41 REFERENCES
Jack Hills, evidence of more very old detrital zircons in Western Australia
The age of the Earth's oldest crustal minerals sets a time-limit on the earliest preservation of buoyant solid crust. The oldest mineral ages reported so far are ∼4,180 Myr for detrital zircons fromExpand
Nature of the Earth's earliest crust from hafnium isotopes in single detrital zircons
Continental crust forms from, and thus chemically depletes, the Earth's mantle. Evidence that the Earth's mantle was already chemically depleted by melting before the formation of today's oldestExpand
The Earth's oldest known crust: A geochronological and geochemical study of 3900-4200 Ma old detrital zircons from Mt. Narryer and Jack Hills, Western Australia
Detrital zircons with 207Pb/206Pb ages between 3908 and 4270 Ma from the Narryer Gneiss Complex, Western Australia, are the oldest terrestrial minerals found to date. They occur in small proportionsExpand
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 hasExpand
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
Ion microprobe analyses of oxygen isotope ratios in Early Archean (Hadean) zircons (4.0- to 4.4-Ga) reveal variable magmatic δ18O values, including some that are high relative to the mantle,Expand
Complex geological histories extending for ≥4.0 Ga deciphered from xenocryst zircon microstructures
Abstract Zircons older than 4.0 Ga have previously been identified as detrital grains within ca. 3.0 Ga clastic metasedimentary rocks of the Narryer Terrane. In this study, a detailed microstructuralExpand
Priscoan (4.00–4.03 Ga) orthogneisses from northwestern Canada
Abstract Ancient crustal rocks provide the only direct evidence for the processes and products of early Earth differentiation. SHRIMP zircon U-Th-Pb dating has identified, amongst the Acasta gneissesExpand
Zircon megacrysts from kimberlite: oxygen isotope variability among mantle melts
Abstract The oxygen isotope ratios of Phanerozoic zircons from kimberlite pipes in the Kaapvaal Craton of southern Africa and the Siberian Platform vary from 4.7 to 5.9‰ VSMOW. High precision,Expand
Geochronology of the Jack Hills detrital zircons by precise U–Pb isotope dilution analysis of crystal fragments
Abstract U–Pb ages were determined for 12 whole grains and 45 fragments from further 14 grains of detrital zircon from the Jack Hills metaconglomerate, Western Australia, using isotope dilutionExpand
Zircon U-Pb ages for the Early Cambrian time-scale
Single zircons from two Early Cambrian volcanic horizons have been analysed using the SHRIMP ion microprobe. Full details of the analytical procedures and data reduction are given. Zircons from tuffExpand
...
1
2
3
4
5
...