Results 181 to 190 of about 36,744 (239)
Carbon Mineralization in Fractured Mafic and Ultramafic Rocks: A Review. [PDF]
Rev GeophysNisbet H +18 more
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The origin of glass in ultramafic xenoliths
International Kimberlite Conference Extended Abstracts: 1982, 2019 openaire +2 more sources
A rapid transition from subduction to Barrovian metamorphism: geochronology of mafic-ultramafic relicts of oceanic crust in the Central Alps, Switzerland. [PDF]
Swiss J GeosciLemke K, Rubatto D, Hermann J.
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Integrated multispectral remote sensing and field investigations for delineating ophiolitic complexes of Wadi Ghadir southeastern desert Egypt. [PDF]
Sci RepBadr MM +3 more
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Lichens and ultramafic rocks: a review
The Lichenologist, 2004Floristic, vegetational and ecological features of lichens in ultramafic environments are reviewed using a wide range of literature dating from the beginning of the 20th century. Co-presence of acidophytic (silicicolous) and basiphytic (calcicolous) species and the occurrence of species characterized by particular (disjunct) distribution patterns are ...
FAVERO LONGO, Sergio Enrico +2 more
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2007
The earth is divided into three layers: the crust, the mantle, and the core. There are two principle regions within the crust: continents and ocean basins. The rocks that make up these layers differ from one another in chemical composition and density.
Earl B. Alexander +3 more
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The earth is divided into three layers: the crust, the mantle, and the core. There are two principle regions within the crust: continents and ocean basins. The rocks that make up these layers differ from one another in chemical composition and density.
Earl B. Alexander +3 more
openaire +1 more source
Geochimica et Cosmochimica Acta, 1953
Abstract Quantitative spectrochemical determinations of potassium in 50 specimens of ultramafic rock confirm the preliminary observation ( Ahrens , Pinson and Kearns , 1952) that the abundance of potassium in this rock type is much lower than has usually been assumed.
W Holyk, L.H Ahrens
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Abstract Quantitative spectrochemical determinations of potassium in 50 specimens of ultramafic rock confirm the preliminary observation ( Ahrens , Pinson and Kearns , 1952) that the abundance of potassium in this rock type is much lower than has usually been assumed.
W Holyk, L.H Ahrens
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Ecological Entomology, 1999
Summary 1. Concentrations of magnesium, manganese, chromium, and cadmium were measured in Coleoptera, Diptera, Hemiptera, and Hymenoptera captured at ultramafic and non‐ultramafic sites in the Highlands of Scotland. 2.
Gemma Davison +4 more
exaly +2 more sources
Summary 1. Concentrations of magnesium, manganese, chromium, and cadmium were measured in Coleoptera, Diptera, Hemiptera, and Hymenoptera captured at ultramafic and non‐ultramafic sites in the Highlands of Scotland. 2.
Gemma Davison +4 more
exaly +2 more sources
Growth and Reproduction of Earthworms in Ultramafic Soils
Archives of Environmental Contamination and Toxicology, 2007Ultramafic soils are characterized by high concentrations of heavy metals of natural origin-such as chromium, cobalt, manganese, and nickel-as well as a shortage of primary nutrients. This can result in extremely disadvantageous living conditions for all soil-dwelling organisms.
R, Maleri +3 more
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