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  • 1
    Electronic Resource
    Electronic Resource
    The Hæmoglobin Particles (1961)
    [s.l.] : Nature Publishing Group
    Nature 190 (1961), S. 480-482 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIS article presents a summary of work on the primary structure of human haemoglobin A which was begun five years ago in the Max-Planck-Institut fur Biochemie; the results have been published during the past two years in various publications, and we wish to summarize and discuss them here. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/190480a0
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  • 2
    Electronic Resource
    Electronic Resource
    Nature of the Ionic Conductivity of Glass (1932)
    [s.l.] : Nature Publishing Group
    Nature 129 (1932), S. 507-508 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT has been found experimentally,1 that the equivalent conductivity of glasses of the system B2O3 + Na2O increases very sharply (a million-fold) with the concentration of sodium in the glass. This increase begins at a definite concentration, about ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/129507a0
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  • 3
    Electronic Resource
    Electronic Resource
    Earth science An Indian cheetah (2007)
    [s.l.] : Nature Publishing Group
    Nature 449 (2007), S. 795-796 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Look up 'speed boosting' on the Internet and you'll find recipes for boosting the speed of computers, modems, cars, photographic film, gas turbines and even your golf cart. But how would you increase the speed of a continent ploughing through Earth's viscous, churning mantle? Kumar et al. (page ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/449795a
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  • 4
    Electronic Resource
    Electronic Resource
    Increased Tyrosine Hydroxylase Activity after Drug-induced Alteration of Sympathetic Transmission (1969)
    [s.l.] : Nature Publishing Group
    Nature 221 (1969), S. 1264-1264 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sprague-Dawley male rats, 120-180 g, were obtained from Hormone Assay (Chicago, Illinois) and housed 72 h before use. The weights of control and treated animals were within a 20 g range at the start of each experiment. Animals were killed by a blow on the head and the adrenal glands were rapidly ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2211264a0
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  • 5
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    Deformation-related volcanism in the Pacific Ocean linked to the Hawaiian–Emperor bend (2015)
    Nature Publishing Group
    In:  Nature Geoscience, 8 (5). pp. 393-397.
    Details
    Publication Date: 2019-09-23
    Description: Ocean islands, seamounts and volcanic ridges are thought to form above mantle plumes. Yet, this mechanism cannot explain many volcanic features on the Pacific Ocean floor and some might instead be caused by cracks in the oceanic crust linked to the reorganization of plate motions. A distinctive bend in the Hawaiian–Emperor volcanic chain has been linked to changes in the direction of motion of the Pacific Plate, movement of the Hawaiian plume, or a combination of both. However, these links are uncertain because there is no independent record that precisely dates tectonic events that affected the Pacific Plate. Here we analyse the geochemical characteristics of lava samples collected from the Musicians Ridges, lines of volcanic seamounts formed close to the Hawaiian–Emperor bend. We find that the geochemical signature of these lavas is unlike typical ocean island basalts and instead resembles mid-ocean ridge basalts. We infer that the seamounts are unrelated to mantle plume activity and instead formed in an extensional setting, due to deformation of the Pacific Plate. 40Ar/39Ar dating reveals that the Musicians Ridges formed during two time windows that bracket the time of formation of the Hawaiian–Emperor bend, 53–52 and 48–47 million years ago. We conclude that the Hawaiian–Emperor bend was formed by plate–mantle reorganization, potentially triggered by a series of subduction events at the Pacific Plate margins.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Format: archive
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  • 6
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    Origin of Indian Ocean Seamount Province by shallow recycling of continental lithosphere (2011)
    Nature Publishing Group
    In:  Nature Geoscience, 4 (12). pp. 883-887.
    Details
    Publication Date: 2020-10-26
    Description: The origin of the Christmas Island Seamount Province in the northeast Indian Ocean is enigmatic. The seamounts do not form the narrow, linear and continuous trail of volcanoes that would be expected if they had formed above a mantle plume1, 2. Volcanism above a fracture in the lithosphere3 is also unlikely, because the fractures trend orthogonally with respect to the east–west trend of the Christmas Island chain. Here we combine 40Ar/39Ar age, Sr, Nd, Hf and high-precision Pb isotope analyses of volcanic rocks from the province with plate tectonic reconstructions. We find that the seamounts are 47–136 million years old, decrease in age from east to west and are consistently 0–25 million years younger than the underlying oceanic crust, consistent with formation near a mid-ocean ridge. The seamounts also exhibit an enriched geochemical signal, indicating that recycled continental lithosphere was present in their source. Plate tectonic reconstructions show that the seamount province formed at the position where West Burma began separating from Australia and India, forming a new mid-ocean ridge. We propose that the seamounts formed through shallow recycling of delaminated continental lithosphere entrained in mantle that was passively upwelling beneath the mid-ocean ridge. We conclude that shallow recycling of continental lithosphere at mid-ocean ridges could be an important mechanism for the formation of seamount provinces in young ocean basins.
    Type: Article , PeerReviewed
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    Format: text
    Format: other
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