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      • Understanding Himalayan erosion and the significance of the Nicobar Fan

        McNeill, Lisa C.,Dugan, Brandon,Backman, Jan,Pickering, Kevin T.,Pouderoux, Hugo F.A.,Henstock, Timothy J.,Petronotis, Katerina E.,Carter, Andrew,Chemale Jr., Farid,Milliken Jr., Kitty L.,Kutterolf Jr Elsevier 2017 Earth and planetary science letters Vol.475 No.-

        <P><B>Abstract</B></P> <P>A holistic view of the Bengal–Nicobar Fan system requires sampling the full sedimentary section of the Nicobar Fan, which was achieved for the first time by International Ocean Discovery Program (IODP) Expedition 362 west of North Sumatra. We identified a distinct rise in sediment accumulation rate (SAR) beginning ∼9.5 Ma and reaching 250–350 m/Myr in the 9.5–2 Ma interval, which equal or far exceed rates on the Bengal Fan at similar latitudes. This marked rise in SAR and a constant Himalayan-derived provenance necessitates a major restructuring of sediment routing in the Bengal–Nicobar submarine fan. This coincides with the inversion of the Eastern Himalayan Shillong Plateau and encroachment of the west-propagating Indo–Burmese wedge, which reduced continental accommodation space and increased sediment supply directly to the fan. Our results challenge a commonly held view that changes in sediment flux seen in the Bengal–Nicobar submarine fan were caused by discrete tectonic or climatic events acting on the Himalayan–Tibetan Plateau. Instead, an interplay of tectonic and climatic processes caused the fan system to develop by punctuated changes rather than gradual progradation.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Sediment accumulation rates in Nicobar Fan abruptly increase 9.5 Ma. </LI> <LI> Increased sediment flux to eastern Indian Ocean and restructuring of sediment routing. </LI> <LI> Nicobar Fan holds significant record of Indian Ocean sedimentation in late Neogene. </LI> <LI> Shillong Plateau and Indo–Burmese wedge uplift drive sediment south in late Miocene. </LI> </UL> </P>

      • SOCIAL INVOLVEMENT AND CONSUMPTION MOTIVATION: CO-CREATION OF MAGIC IN THE BAR SERVICESCAPE

        Lisa McNeill,Damien Mather 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

        In service experiences, customers often look to create their own magic in the service environment, through interaction with other customers, not the producer of the experience (the provider) at all. The current study examines the bar environment, where hedonically-driven service encounter experiences are constructed, not by the provider, but by the social interactions of the consumers of the environment. The study surveys 130 consumers, measuring experiential, situational and social involvement levels in relation to consumption motivation and overall experience evaluation. The research finds that, while bar consumers are likely to be highly socially involved, they still need the company of close friends to become fully involved in the bar service experience. In addition, where atmospheric theory discusses the value of extraordinary or surprising service environments, consumers in the already hedonic bar environment may indeed prefer environments which are simply comfortable and consistent with their expectations (in regard to motivations to consume and overall positive evaluations).

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        Release of mineral-bound water prior to subduction tied to shallow seismogenic slip off Sumatra

        Hupers, Andre,Torres, Marta E.,Owari, Satoko,McNeill, Lisa C.,Dugan, Brandon,Henstock, Timothy J.,Milliken, Kitty L.,Petronotis, Katerina E.,Backman, Jan,Bourlange, Sylvain,Chemale Jr., Farid,Chen, We American Association for the Advancement of Scienc 2017 Science Vol.356 No.6340

        <P>Plate-boundary fault rupture during the 2004 Sumatra-Andaman subduction earthquake extended closer to the trench than expected, increasing earthquake and tsunami size. International Ocean Discovery Program Expedition 362 sampled incoming sediments offshore northern Sumatra, revealing recent release of fresh water within the deep sediments. Thermal modeling links this freshening to amorphous silica dehydration driven by rapid burial-induced temperature increases in the past 9 million years. Complete dehydration of silicates is expected before plate subduction, contrasting with prevailing models for subduction seismogenesis calling for fluid production during subduction. Shallow slip offshore Sumatra appears driven by diagenetic strengthening of deeply buried fault-forming sediments, contrasting with weakening proposed for the shallow Tohoku-Oki 2011 rupture, but our results are applicable to other thickly sedimented subduction zones including those with limited earthquake records.</P>

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