Results 111 to 120 of about 23,483 (232)
A mid-Archaean ophiolite complex, Barberton Mountain land [PDF]
New field observations and structurally restored geologic sections through the southern part of 3.5-3.6 Ga Barberton greenstone belt show that its mafic to ultramafic rocks form a pseudostratigraphy comparable to that of Phanerozoic ophiolites; this ...
Dewit, M. J., Hart, R., Hart, R.
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Stored mafic/ultramafic crust and early Archean mantle depletion [PDF]
Both early and late Archean rocks from greenstone belts and felsic gneiss complexes exhibit positive epsilon(Nd) values of +1 to +5 by 3.5 Ga, demonstrating that a depleted mantle reservoir existed very early.
Chase, Clement G., Patchett, P. J.
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Journal of Economic Geology, 2013 Mafic and ultramafic plutonic igneous bodies, with small and big outcrops, between Shemshak rock units (Jurassic) are observed in east of Imam Zadeh Hashem, in southern Guilan province.
Mojgan Salavati, Reza Fahim Guilani
doaj
Workshop on a Cross Section of Archean Crust [PDF]
Various topics relevant to crustal genesis, especially the relationship between Archean low - and high-grade terrains, were discussed. The central Superior Province of the Canadian Shield was studied.
Ashwal, L. D., Card, K. D.
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High H2 production in sediment-hosted hydrothermal fluids at an ultraslow spreading mid-ocean ridge
Communications Earth & EnvironmentHydrothermal systems at ultraslow-spreading mid-ocean ridges remain poorly characterized, particularly where sedimentary and ultramafic influences intersect.
Alexander Diehl +17 more
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A survey of lunar rock types and comparison of the crusts of earth and moon [PDF]
The principal known types of lunar rocks are briefly reviewed, and their chemical relationships are ...
Wood, J. A.
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Mafic and Ultramafic Rock Association in the East Arc of Sulawesi
Journal of Mathematical and Fundamental Sciences, 2019 Busur Timur Sulawesi, yang terdiri dari Sulawesi Timur dan Tenggara, sebagian besar ditempati oleh suatu komplek luas terdiri dari kelompok batuan ultramafic yang diperkirakan berumur Mososoik hingga Tersier Bawah.
R. Soeria Atmadja +2 more
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Speculations on the igneous history of Mars: Inferences from the SNC meteorites [PDF]
In general, attempts to delineate an a priori sampling strategy for missions to terrestrial planets must be simple. In the case of the Moon, for example, the simplest and most obvious plan that to sample both the highly-cratered, high-albedo highlands ...
Jones, John H.
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Bacterially induced weathering of ultramafic rock and its implications for phytoextraction. [PDF]
Appl Environ Microbiol, 2013 Becerra-Castro C +8 more
europepmc +1 more source