Search Results - Earth's crustal evolution

Spot the difference: Zircon disparity tracks crustal evolution by Barham, Milo, Kirkland, Chris, Hollis, Julie

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Crustal evolution, intra-cratonic architecture and the metallogeny of an Archaean craton by Mole, David, Fiorentini, M., Cassidy, K., Kirkland, Chris, Thebaud, N., Mccuaig, T., Doublier, M., Duuring, P., Romano, S., Maas, R., Belousova, E., Barnes, S., Miller, J.

“…Furthermore, this work shows that crustal evolution plays an important role in the development and localization of favourable sources of nickel, gold and iron by controlling the occurrence of thick BIFs, ultramafic lavas and fertile (juvenile) crust, respectively. …”
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Oxygen isotopes in detrital zircons: Insight into crustal recycling during the evolution of the Greenland Shield by Kirkland, Chris, Whitehouse, M., Pease, V., Van Kranendonk, M.

“…These data refl ect differences in crustal evolution between the Archean and Proterozoic Earth. …”
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Fluid processes in the early Earth and the growth of continents by Hartnady, Michael, Johnson, Tim, Schorn, S., Hugh Smithies, R., Kirkland, Christopher, Richardson, S.H.

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Hadean crustal evolution revisited: New constraints from Pb-Hf isotope systematics of the Jack Hills zircons by Kemp, A., Wilde, Simon, Hawkesworth, C., Coath, C., Nemchin, Alexander, Pidgeon, Robert, Vervoort, J., DuFrane, S.

“…The detrital zircons define a subchondritic εHf–time array that attests to a far simpler evolution for the Hadean Earth than claimed by recent studies.This evolution is consistent with the protracted intra-crustal reworking of an enriched, dominantly mafic protolith that was extracted from primordial mantle at 4.4–4.5 Ga, perhaps during the solidification of a terrestrial magma ocean. …”
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Archean komatiite volcanism controlled by the evolution of early continents by Mole, D., Fiorentini, M., Thebaud, N., Cassidy, K., McCuaig, C., Kirkland, Chris, Romano, S., Doublier, M., Belousova, E., Barnes, S., Miller, J.

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Late Neoarchean potassic high Ba–Sr granites in the Taishan granite–greenstone terrane: Petrogenesis and implications for continental crustal evolution by Peng, T., Wilde, Simon, Fan, W., Peng, B.

“…In combination with previous data from the region, it is noted that, apart from rapid crustal growth at ~ 2.7 Ga, other additions of mantle-derived magma, such as minor 2.6–2.5 Ga sanukitoids, siliceous high-Mg basalts (SHMBs) and high Ba–Sr granites, also made a significant contribution to continental crustal evolution in the TSGT.…”
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Pb isotope insight into the formation of the Earth's first stable continents by Hartnady, Michael, Kirkland, Christopher, Smithies, R. Hugh, Johnson, S.P., Johnson, Tim

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Role of deep-Earth water cycling in the growth and evolution of continental crust: Constraints from Cretaceous magmatism in southeast China by Li, Zhen, Wang, Xuan-Ce, Wilde, Simon, Liu, L., Li, W., Yang, X.

“…The variations in Hf–Nd–O isotopic compositions are correlated with decreasing abundance of magma water contents, presenting a case that water-fluxed melting generated large-scale granitic magmatism. Deep-Earth water cycling provides an alternative or additional mechanism to supply volatiles (e.g., H2O) for hydrous basaltic underplating, continental crustal melting, and magmatic differentiation.…”
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Geochemistry, geochronology, and Sr–Nd isotopes of the Late Neoproterozoic Wadi Kid volcano-sedimentary rocks, Southern Sinai, Egypt: Implications for tectonic setting and crustal... by Moghazi, A., Ali, K., Wilde, Simon, Zhou, Q., Andersen, T., Andresen, A., El-Enen, M., Stern, R.

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Origin of Archean Pb isotope variability through open-system Paleoarchean crustal anatexis by Hartnady, Michael, Kirkand, C.L., Johnson, S.P., Smithies, Hugh, Doucet, Luc, Mole, D.R.

“…We report new in situ Pb isotope data from orthoclase in 144 granites sampled across the Archean Yilgarn craton (Western Australia) to characterize its Pb isotope variability and evolution. Granite Pb isotope compositions reveal three Pb sources, a mantle-derived Pb reservoir and two crustal Pb reservoirs, distinguished by their implied source 232Th/238U (κPb). …”
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Modelling U-Pb discordance in the Acasta Gneiss: Implications for fluid–rock interaction in Earth's oldest dated crust by Kirkland, Chris, Johnson, Tim, Kinny, Pete, Kapitany, T.

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Will Earth's next supercontinent assemble through the closure of the Pacific Ocean? by Huang, Chuan, Li, Zheng-Xiang, Zhang, Nan

“…Our work provides a new understanding of the secular evolution of plate tectonics and geodynamics as the Earth cooled.…”
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Oxygen isotopes in Pilbara Craton zircons support a global increase in crustal recycling at 3.2Ga by Van Kranendonk, M., Kirkland, Chris, Cliff, J.

“…Oxygen isotopes were measured in zircon crystals from a suite of Paleo- to Mesoarchean igneous and sedimentary rocks from the Pilbara Craton in order to test prevailing models of early Earth tectonic evolution. Our results indicate that igneous zircon crystals older than 3.2 Ga in the Pilbara Craton have mantle-like oxygen isotope signatures, whereas zircon grains younger than c. 3.2 Ga show, on average, isotopically heavier δ18O values. …”
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Cubic zirconia in >2370 °C impact melt records Earth's hottest crust by Timms, Nicholas Eric, Erickson, T., Zanetti, M., Pearce, M., Cayron, C., Cavosie, Aaron, Reddy, S., Wittmann, A., Carpenter, P.

“…Consequently, impact melt temperatures in global bombardment models of the early Earth and Moon are poorly constrained, and may not accurately predict the survival, stabilization, geochemical evolution and cooling of early crustal materials. …”
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Provenance and depositional age of Paleoproterozoic metasedimentary rocks in the Kuluketage Block, northern Tarim Craton: Implications for tectonic setting and crustal growth by Long, X., Wilde, Simon, Yuan, C., Hu, A., Sun, M.

“…Precambrian geology of the Tarim Craton, especially for the crustal evolution, is poorly constrained. Paleoproterozoic metasedimentary rocks are extensively exposed in the Kuluketage Block, northern Tarim Craton, and thus have recorded abundant geological information of its tectonic history. …”
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The world turns over: Hadean–Archean crust–mantle evolution by Griffin, W., Belousova, E., O'Neil, C., O'Reilly, S., Malkoverts, V., Pearson, N., Spetsius, S., Wilde, Simon

“…We integrate an updated worldwide compilation of U/Pb, Hf-isotope and trace-element data on zircon, and Re–Os model ages on sulfides and alloys in mantle-derived rocks and xenocrysts, to examine patterns of crustal evolution and crust–mantle interaction from 4.5 Ga to 2.4 Ga ago. …”
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Large impact cratering during lunar magma ocean solidification by Miljkovic, Katarina, Wieczorek, M.A., Laneuville, M., Nemchin, Alexander, Bland, Phil, Zuber, M.T.

“…Lunar basins formed while the lunar magma ocean was still solidifying may escape detection, which is agreeing with studies that suggest a higher impact flux than previously thought in the earliest epoch of Earth-Moon evolution.…”
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The Mesoproterozoic thermal evolution of the Musgrave Province in central Australia - Plume vs. the geological record by Smithies, R., Kirkland, Chris, Korhonen, F., Aitken, A., Howard, H., Maier, W., Wingate, M., Quentin de Gromard, R., Gessner, K.

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Neoproterozoic evolution and Cambrian reworking of ultrahigh temperature granulites in the Eastern Ghats Province, India by Mitchell, R., Johnson, Tim, Clark, Christopher, Gupta, S., Brown, M., Harley, S., Taylor, Richard

“…The limited decompression inferred at Vizianagaram may be explained by partial exhumation due to thrusting of this crustal block over the adjacent Paderu–Anantagiri–Salur crustal block. …”
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