Results 151 to 160 of about 5,077 (206)

Bio-mediated CN cycling in serpentinites and the origin of life. [PDF]

Sci Rep
Tenuta S, Evans KA, Reddy SM, Tutolo BM, Rickard WDA, Saxey DW.   +5 more
europepmc   +1 more source

Three-stage niobium mineralization at Bayan Obo, China. [PDF]

Natl Sci Rev
Yu Y, Li Y, Liu Y, Ling XX, Wu LG, Yang L, Yang L, Yang B, Zhao YG, Li XH.   +9 more
europepmc   +1 more source

The role of C-O-H-F-Cl fluids in the making of Earth's continental roots. [PDF]

Nat Commun
Gibson SA, Jackson CJ, Crosby JC, Day JAF.   +3 more
europepmc   +1 more source

Dating ductile deformation of the Earth’s crust: the critical role of fluids

Jakobsson V, Spikings R, Kutzschbach M, Berger A, Kouzmanov K, Müller W.   +5 more
europepmc   +1 more source

Rethinking Lunar Mare Basalt Regolith Formation: New Concepts of Lava Flow Protolith and Evolution of Regolith Thickness and Internal Structure [PDF]

Geophysical Research Letters, 2020
Lunar mare regolith is traditionally thought to have formed by impact bombardment of newly emplaced coherent solidified basaltic lava. We use new models for initial emplacement of basalt magma to predict and map out thicknesses, surface topographies and ...
Lionel Wilson
exaly   +4 more sources

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The Rock Abundance of Crater Populations as a Probe of Mare Protolith Properties

Journal of Geophysical Research E: Planets, 2023
Abstract The volcanic parent rock (“protolith”) composing the lunar maria is likely to have developed diverse mechanical properties upon emplacement. The abundance of rocks ejected by impacts may be sensitive to protolith properties. We investigate the relationship between the possible diversity of mare protoliths and the abundance of
Emily S Costello, Marley A Chertok, Paul G Lucey   +2 more
exaly   +2 more sources

Inherited 142Nd anomalies in Eoarchean protoliths

Earth and Planetary Science Letters, 2013
Abstract Geological records of the earliest history of the Earth are rare; rocks older than 3700 Ma comprise only a few percent of continental surfaces. Evidence is mounting, however, that vestiges of primordial planetary differentiation continued to influence the compositions of the oldest rocks during the Hadean and into the Archean.
Roth, Antoine S.G., Bourdon, Bernard, Mojzsis, Stephen, Touboul, Mathieu, Sprung, Peter, Guitreau, Martin, Blichert-Toft, Janne   +6 more
openaire   +3 more sources

Orogenic Massifs: Protolith, Process and Provenance

Journal of Petrology, 1991
Orogenic or alpine massifs comprise clinopyroxene-rich (lherzolite) and clinopyroxene-poor (harzburgite) peridotites with associated concordant (old) and discordant (young) mafic layers. The protolith is believed to be residual peridotite produced by partial melting processes in post-Archaean times and the mafic layers are interpreted as polybaric ...
M. A. Menzies, C. Dupuy
openaire   +1 more source

Protolith age of eclogites from the southern part of Pezhostrov Island, Belomorian belt: Protolith of metabasites as indicator of eclogitization time

Petrology, 2016
Several types of metabasites of different age were identified in the southern part of Pezhostrov Island: eclogites with a magmatic protolith age of about 2200 Ma and 2500 Ma old metagabbroanorthosites that retained no eclogitic assemblage. It is shown that the Paleoproterozoic eclogites dominate volumetrically over Archean eclogites in the Belomorian ...
S. G. Skublov, A. V. Berezin, A. E. Melnik, B. Yu. Astafiev, O. A. Voinova, V. I. Alekseev   +5 more
openaire   +1 more source

Komsomolskaya diamondiferous eclogites: evidence for oceanic crustal protoliths

Contributions to Mineralogy and Petrology, 2014
The Komsomolskaya kimberlite is one of numerous (>1,000) kimberlite pipes that host eclogite xenoliths on the Siberian craton. Eclogite xenoliths from the adjacent Udachnaya kimberlite pipe have previously been geochemically well characterized; however, data from surrounding diamond-bearing kimberlite pipes from the center of the craton are relatively ...
Pernet-Fisher, John F., Howarth, Geoffrey H., Liu, Yang, Barry, Peter H., Carmody, Laura, Valley, John W., Bodnar, Robert J., Spetsius, Zdislav V., Taylor, Lawrence A.   +8 more
openaire   +1 more source