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Mantle convection models constrain central Neo-Tethys Ocean reconstructions (2016)

Rainer Nerlich, Lorenzo Colli, Siavash Ghelichkhan, Bernhard Schuberth, Hans-Peter Bunge

Wiley

In: Geophysical Research Letters

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Publikationsdatum: 2016-09-11

Beschreibung: A striking feature of the Indian Ocean is a distinct geoid low south of India, pointing to a regionally anomalous mantle density structure. Equally prominent are rapid plate convergence rate variations between India and SE Asia, particularly in Late Cretaceous/Paleocene times. Both observations are linked to the central Neo-Tethys Ocean subduction history, for which competing scenarios have been proposed. Here we evaluate three alternative reconstructions by assimilating their associated time-dependent velocity fields in global high-resolution geodynamic Earth models, allowing us to predict the resulting seismic mantle heterogeneity and geoid signal. Our analysis reveals that a geoid low similar to the one observed develops naturally when a long-lived back-arc basin south of Eurasia's paleo-margin is assumed. A quantitative comparison to seismic tomography further supports this model. In contrast, reconstructions assuming a single northward dipping subduction zone along Eurasia's margin or models incorporating a temporary southward dipping intra-oceanic subduction zone cannot sufficiently reproduce geoid and seismic observations.

Print ISSN: 0094-8276

Digitale ISSN: 1944-8007

Thema: Geologie und Paläontologie , Physik

Publiziert von Wiley im Namen von American Geophysical Union (AGU).

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The olfactory epithelium as a port of entry in neonatal neurolisteriosis (2018)

Dennis Pägelow; Chintan Chhatbar; Andreas Beineke; Xiaokun Liu; Andreas Nerlich; Kira van Vorst; Manfred Rohde; Ulrich Kalinke; Reinhold Förster; Stephan Halle; Peter Valentin-Weigand; Mathias W. Hornef; Marcus Fulde

Springer Nature

In: Nature Communications

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Publikationsdatum: 2018-10-16

Beschreibung: The olfactory epithelium as a port of entry in neonatal neurolisteriosis The olfactory epithelium as a port of entry in neonatal neurolisteriosis, Published online: 15 October 2018; doi:10.1038/s41467-018-06668-2 Listeria monocytogenes causes meningitis in newborns. Here, Pägelow et al. present a mouse model of neonatal cerebral listeriosis, and show that nasal inoculation, but not intragastric administration, leads to early brain infection in the absence of bacteraemia during the neonatal period.

Digitale ISSN: 2041-1723

Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft , Physik