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  • 1
    Electronic Resource
    Electronic Resource
    Coupled major and trace elements as indicators of the extent of melting in mid-ocean-ridge peridotites (2001)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 410 (2001), S. 677-681 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Rocks in the Earth's uppermost sub-oceanic mantle, known as abyssal peridotites, have lost variable but generally large amounts of basaltic melt, which subsequently forms the oceanic crust. This process preferentially removes from the peridotite some major constituents such as aluminium, as ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/35070546
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Hydrous partial melting within the lower oceanic crust (2005)
    Oxford, UK : Blackwell Science Ltd
    Terra nova 17 (2005), S. 0 
    Details
    ISSN: 1365-3121
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: We studied more than 60 oceanic gabbros from the recent oceanic crust and from ophiolites (East Pacific Rise, Mid-Atlantic Ridge, Southwest Indian Ridge, Oman ophiolite) by scanning electron microscopy and found in nearly all samples microstructures suggesting that hydrous partial melting reactions proceeded. The characteristic paragenesis consists of orthopyroxene and pargasite rimming olivine and clinopyroxene primocrysts in intimate contact with neoblastic plagioclase strongly enriched in anorthite. This is in agreement with recent water-saturated melting experiments on a variety of natural gabbros between 900 and 1000 °C. The observed microtextures in the natural gabbros imply the propagation of water-rich fluids on grain boundaries in a ductile regime causing hydrous partial melting. Thus, this type of hydrothermal activity proceeds within the deep oceanic crust at very high temperatures (900–1000 °C) without a crack system, a prerequisite in current models for enabling hydrothermal circulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3121.2005.00613.x
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  • 3
    Electronic Resource
    Electronic Resource
    Nd and Sr isotope evidence linking mid-ocean-ridge basalts and abyssal peridotites (1994)
    [s.l.] : Nature Publishing Group
    Nature 371 (1994), S. 57-60 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Most studies of abyssal peridotite either assume a relationship with MORB, and thus cannot be used to demonstrate its existence11'12, or do not address this question at all13'14. The best evidence so far for this link comes from worldwide covariations in basalt and abyssal peridotite major-element ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/371057a0
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  • 4
    Electronic Resource
    Electronic Resource
    Of Hess crust and layer cake (1995)
    [s.l.] : Nature Publishing Group
    Nature 374 (1995), S. 413-414 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] FOR over 35 years, the ocean floor has been of prime interest to geologists be-cause of its role in plate tectonics. Today, basalt and gabbro (extrusive and intrusive volcanic rocks) are regarded as the pri-mary constituents of the oceanic crust, a view largely brought about by the students and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/374413a0
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  • 5
    Electronic Resource
    Electronic Resource
    Foreign workers in Europe (1996)
    [s.l.] : Nature Publishing Group
    Nature 379 (1996), S. 294-294 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - As an American postdoc for the past two years in both France and Germany, I feel compelled to comment on both your figures and their interpretation in your leading article about Germany (Nature 378, 755; 1995). There appears to be a disparity between the number of European Commission (EC) ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/379294c0
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  • 6
    Electronic Resource
    Electronic Resource
    Record conditions for cycling (1994)
    [s.l.] : Nature Publishing Group
    Nature 371 (1994), S. 552-552 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Miguel Indurain recently broke the world 1-hour cycling record, riding 53.040 km. The previous record was held by Graeme Obree, who rode an innovative bicycle of his own design and manufac-ture. Subsequently, the UCI (Union Cyc-liste Internationale) changed its rules to outlaw such ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/371552d0
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  • 7
    Electronic Resource
    Electronic Resource
    Constraints on Earth accretion deduced from noble metals in the oceanic mantle (1998)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 391 (1998), S. 166-169 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] If the Earth's mantle were in equilibrium with its core, the mantle would contain three orders of magnitude less of the noble metals (platinum-group elements Pt, Os, Ir, Ru, Pd and Rh, plus Au and Re) than are observed. An explanation put forward to account for this disparity has been that the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/34396
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  • 8
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    First results from the Arctic Mid-Ocean Ridge Expedition with POLARSTERN and HEALY
    PANGAEA
    Details
    Publication Date: 2023-07-05
    Description: Helicopter borne sea ice thickness measurements, documentation of sediment cores, meteorological observations, physical oceanography, dredge samples and other data obtained during the Arctic Mid-Ocean Ridge Expedition with POLARSTERN and HEALY.
    Keywords: AWI_BioOce; AWI_Meteo; AWI_Paleo; AWI_SeaIce; Biological Oceanography @ AWI; Meteorological Long-Term Observations @ AWI; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Sea Ice Physics @ AWI
    Type: Dataset
    Format: application/zip, 61 datasets
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  • 9
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    Petrological analysis of dredge samples from POLARSTERN cruise ARK-XVII/2 (AMORE) to the Arctic Ocean
    PANGAEA
    Details
    Publication Date: 2023-07-05
    Keywords: Alteration; Angularity; ARK-XVII/2; AWI_Paleo; Comment; DEPTH, sediment/rock; Dredge, frame; Dredge, pipe; DRG_F; DRG_P; Elevation of event; Event label; Gakkel Ridge, Arctic Ocean; GC; Giant box corer; GKG; Grain size description; Gravity corer; Latitude of event; Lithology/composition/facies; Longitude of event; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS59/199-1; PS59/201; PS59/204; PS59/206; PS59/211; PS59/212-1; PS59/212-2; PS59/214-1; PS59/214-2; PS59/216-1; PS59/218; PS59/220; PS59/221; PS59/222; PS59/223; PS59/224; PS59/225; PS59/226; PS59/227-1; PS59/227-2; PS59/228-1; PS59/229-1; PS59/230; PS59/231; PS59/232; PS59/233-3; PS59/234-1; PS59/235; PS59/236-1; PS59/238; PS59/239; PS59/240; PS59/241; PS59/242; PS59/243; PS59/244; PS59/246; PS59/247; PS59/248; PS59/249; PS59/250; PS59/251; PS59/252-1; PS59/253; PS59/254; PS59/255-1; PS59/257-1; PS59/260; PS59/261; PS59/262; PS59/263; PS59/265; PS59/266; PS59/268; PS59/270; PS59/271-1; PS59/272; PS59/274-1; PS59/275-1; PS59/276-1; PS59/289; PS59/290-1; PS59/291; PS59/293; PS59/294; PS59/295; PS59/297; PS59/299; PS59/300; PS59/301; PS59/302; PS59/303; PS59/304; PS59/305; PS59/306; PS59/307; PS59/309; PS59/310-1; PS59/311; PS59/312; PS59/313-2; PS59/315; PS59/317; PS59/318; PS59/320; PS59 AMORE; Sample, optional label/labor no; Sample mass; Sample method; Surface description; Television-Grab; Texture; TVG
    Type: Dataset
    Format: text/tab-separated-values, 2580 data points
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  • 10
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    Documentation of dredge samples at station HLY0102/D44
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2023-07-05
    Keywords: AWI_Paleo; D44; Dredge; DRG; Healy; HLY0102; HLY0102/D44; Paleoenvironmental Reconstructions from Marine Sediments @ AWI
    Type: Dataset
    Format: unknown
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