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  • 1
    Call number: 9/M 07.0421(501)
    In: Geological Society special publication : 501
    Type of Medium: Monograph available for loan
    Pages: 664 Seiten , Illustrationen
    ISSN: 978-1-78620-478-3
    Series Statement: Geological Society special publication no. 501
    Language: English
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  • 2
    Keywords: earthquake ; tsunami ; history ; historical earthquakes ; historical tsunamis
    Description / Table of Contents: 24 December 2019 --- Geohazards in coastal areas near the northernmost Sagami Trough, central Japan: review of neotectonic activity in onshore and offshore areas of the Izu island arc collision–subduction zone / S. Mori and Y. Ogawa / Geological Society, London, Special Publications, 501, https://doi.org/10.1144/SP501-2019-52 --- 19 December 2019 --- Evidence of giant earthquakes and tsunamis of the 17th-century type along the southern Kuril subduction zone, eastern Hokkaido, northern Japan: A review / Nanayama Futoshi / Geological Society, London, Special Publications, 501, https://doi.org/10.1144/SP501-2019-99 --- Tsunami - triggered dispersal and deposition of microplastics in marine environments and their use in dating recent turbidite deposits / Kiichiro Kawamura, Kazumasa Oguri, Takashi Toyofuku, Olivier Radakovitch, Christophe Fontanier, Kenta Sasaki, Minami Fujii and Masafumi Murayama / Geological Society, London, Special Publications, 501, https://doi.org/10.1144/SP501-2019-45 --- Estimation of human damage and economic loss of buildings related to tsunami inundation in the city of Augusta, Italy / Gianluca Pagnoni, Alberto Armigliato and Stefano Tinti / Geological Society, London, Special Publications, 501, https://doi.org/10.1144/SP501-2019-134 --- Today in Thailand: Multidisciplinary Perspectives on the Current Tsunami Disaster Risk Reduction / Natt Leelawat, Panon Latcharote, Anawat Suppasri, Titaya Sararit, Mongkonkorn Srivichai, Jing Tang, Terence Chua, Darin Kumnertrut, Kumpol Saengtabtim and Fumihiko Imamura / Geological Society, London, Special Publications, 501, https://doi.org/10.1144/SP501-2019-97 --- Importance of surface ruptures and fault damage zones in earthquake hazard assessment: A review and new suggestions / Kwangmin Jin and Young-Seog Kim / Geological Society, London, Special Publications, 501, https://doi.org/10.1144/SP501-2019-98
    Pages: Illustrationen, Diagramme, Karten
    Edition: online first
    Language: English
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  • 3
    Keywords: West African Craton
    Description / Table of Contents: 21 April 2020 --- Morphological, mineral and geochemical characterization of soil profiles in Meïganga as tools for rock weathering intensity and trend evaluation and residual ore deposit prospection in the mineralized domain of central Cameroon / T. W. Tchaptchet, P. Tematio, T. N. Guimapi, E. Happi, I. Tiomo and N. M. Momo / Geological Society, London, Special Publications, 502, 21 April 2020, https://doi.org/10.1144/SP502-2019-84 --- 17 April 2020 --- Shear-hosted gold mineralization in the Oumé-Fettèkro greenstone belt, Côte d'Ivoire: the Bonikro deposit / Zié Ouattara, Yacouba Coulibaly and Marie-Christine Boiron / Geological Society, London, Special Publications, 502, 17 April 2020, https://doi.org/10.1144/SP502-2019-103 --- 14 April 2020 --- Accepted manuscript The Samapleu mafic-ultramafic intrusion (Western Ivory Coast): Cumulate of a High-Mg Basaltic Magma with (coeval) ultra-high temperature - medium pressure metamorphism / Franck Gouedji, Christian Picard, Marc-Antoine Audet, Philippe Goncalvés, Yacouba Coulibaly and Bouaké Bakayoko / Geological Society, London, Special Publications, 502, https://doi.org/10.1144/SP502-2019-130 --- 9 April 2020 --- Aeromagnetic modelling of Precambrian subsurface structures of the Tasiast area, NW Mauritania / Tahar Aïfa and Khalidou Lo / Geological Society, London, Special Publications, 502, 9 April 2020, https://doi.org/10.1144/SP502-2019-101 --- Syn-kinematic ferroan high-K I-type granites from Dschang in southwestern Cameroon: U–Pb age, geochemistry and implications for crustal growth in the late Pan-African orogeny / Maurice Kwékam, István Dunkl, Eric Martial Fozing, Gerald Hartmann, Théophile Njanko, Kouémo Jules Tcheumenak and Emmanuel Njonfang / Geological Society, London, Special Publications, 502, 9 April 2020, https://doi.org/10.1144/SP502-2019-19 --- Cobalt–nickel–copper arsenide, sulfarsenide and sulfide mineralization in the Bou Azzer window, Anti-Atlas, Morocco: one century of multi-disciplinary and geological investigations, mineral exploration and mining / Moha Ikenne, Mustapha Souhassou, Nicolas J. Saintilan, AbdelHaq Karfal, Abdelfattah E. L. Hassani, Younes Moundi, Mehdi Ousbih, Mohamed Ezzghoudi, Mohamed Zouhir and Lhou Maacha / Geological Society, London, Special Publications, 502, 9 April 2020, https://doi.org/10.1144/SP502-2019-132 --- 30 March 2020 --- Sidi M'Barek: a representative example of the Moroccan massive sulfide deposits / Abdelhak Outigua, Abderrahim Essaifi, Michel Corsini, Mohamed Outhounjite and Mohamed Zouhair / Geological Society, London, Special Publications, 502, 30 March 2020, https://doi.org/10.1144/SP502-2019-65 --- 19 March 2020 --- Clay mineralogy, chemical and geotechnical characterization of bentonite from Beni Bou Ifrour Massif (the Eastern Rif, Morocco) / H. Ait Hmeid, M. Akodad, M. Aalaoul, M. Baghour, A. Moumen, A. Skalli, A. Anjjar, P. Conti, A. Sfalanga, F. Ryazi Khyabani, S. Minucci and L. Daoudi / Geological Society, London, Special Publications, 502, 19 March 2020, https://doi.org/10.1144/SP502-20
    Pages: Illustrationen, Diagramme, Karten
    Edition: online first
    Language: English
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  • 4
    Publication Date: 2015-11-26
    Description: We report the global distribution of areas exhibiting no absorption features (featureless or FL) on the lunar surface, based on the reflectance spectral data set obtained by the Spectral Profiler onboard Kaguya/SELENE. We found that FL sites are located in impact basins and large impact craters in the Feldspathic Highlands Terrane (FHT), while there are no FL sites in the Procellarum regions nor the South Pole–Aitken basin. FL sites in each impact basin/crater are mainly found at the peak rings or rims, where the purest anorthosite (PAN) sites are also found. At the local scale, most of the FL and PAN points are associated with impact craters and peaks. Most of the FL spectra show a steeper (redder) continuum than the PAN spectra, suggesting the occurrence of space weathering effects. We propose that most of the material exhibiting a FL spectrum originate from space weathered PAN. Taking into account all the occurrence trends of FL sites on the Moon, we propose that both the FL and PAN materials were excavated from the primordial lunar crust during ancient basin formations below the megaregolith in the highlands. Since the FL and PAN sites are widely distributed over the lunar surface, our new data may support the existence of a massive PAN layer below the lunar surface.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 5
    Publication Date: 2012-07-06
    Description: We present a new global survey of the purest anorthosite (PAN) rock using the Spectral Profiler onboard Kaguya. We found that PAN rocks are widely distributed over the Moon, including the Feldspathic Highland Terrain and the south and north polar regions. All PAN sites are associated with huge impact structures with diameters larger than 100 km. Based on the global distributions of PAN and olivine-rich sites, we propose the existence of a massive PAN layer with a thickness of ∼50 km below an uppermost mafic-rich mixed layer with a thickness of ∼10 km. Below the PAN layer, a lower crustal layer with olivine-rich materials may be present on the nearside, but not on the far side of the Moon. The existence of a PAN layer with a thickness of ∼50 km suggests an Al2O3 abundance of 33 to 34 wt.% in the lunar crust, which is higher than previous estimates of
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 6
    Publication Date: 2015-03-25
    Description: We present details of the global distribution of high-Ca pyroxene (HCP)-rich sites in the lunar highlands based on the global dataset of hyper-spectral reflectance obtained by the SELENE Spectral Profiler. Most HCP-rich sites in the lunar highlands are found at fresh impact craters. In each crater, most of the detection points are distributed on the ejecta, rim, and floor of the impact craters rather than the central peaks, while the central peaks are dominated by purest anorthosite (PAN). This indicates that HCP-rich materials originate from relatively shallower regions of the lunar crust than PAN. In addition, while all ray craters with sizes larger than ~40km possess HCP-rich materials, small fresh craters with sizes less than ~6−−10km do not, indicating that the uppermost mixing layers in the lunar crust are not dominated by HCP. Based on these results, we propose that in the upper lunar crust, a HCP-rich zone overlying the PAN layer exists below the uppermost mixing layer. This HCP-rich zone may originate from interstitial melt during the formation of the flotation anorthositic cumulate, while an impact ejecta origin, impact melt origin, and/or magmatic intrusion into the upper lunar crust may also account for the occurrence of HCP-rich sites in the highlands.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 7
    Publication Date: 2011-08-27
    Description: We constructed an empirical model of the electron density profile with solar zenith angle (SZA) dependence in the polar cap during geomagnetically quiet periods using 63 months of Akebono satellite observations at solar maximum. The electron density profile exhibits a transition at ∼2000 km altitude only under dark conditions. The electron density and scale height at low altitudes change drastically, by factors of 25 (at 2300 km altitude) and 2.0, respectively, as the SZA increases from 90° to 120°. The SZA dependence of the ion and electron temperatures is also investigated statistically on the basis of data obtained by the Intercosmos satellites and European Incoherent Scatter (EISCAT) Svalbard radar (ESR). A drastic change in the electron temperature occurs near the terminator, similarly to that in the electron density profile obtained by the Akebono satellite. The sum of the ion and electron temperatures obtained by the ESR (∼6500 K at ∼1050 km altitude under sunlit conditions and ∼3000 K at ∼750 km altitude under dark conditions) agrees well with the scale height at low altitudes obtained from the Akebono observations, assuming that the temperature is constant and that O+ ions are dominant. Comparisons between the present statistical results (SZA dependence of the electron density and ion and electron temperatures) and modeling studies of the polar wind indicate that the plasma density profile (especially of the O+ ion density) in the polar cap is strongly controlled by solar radiation onto the ionosphere by changing ion and electron temperatures in the ionosphere during geomagnetically quiet periods.
    Print ISSN: 0148-0227
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 8
    Publication Date: 2013-07-26
    Description: [1]  We present details of the identification of sites that show an absorption band at visible wavelengths and a strong 2  μ m band using the SELENE Spectral Profiler. All the sites exhibiting the visible feature are found on the regional dark mantle deposit (DMD) at Sinus Aestuum. All the instances of the visible feature show a strong 2- μ m band, suggestive of Fe- and Cr-rich spinels, which are different from previously-detected Mg-rich spinel. Since no visible feature is observed in other DMDs, the DMD at Sinus Aestuum is unique on the Moon. The occurrence trend of the spinels at Sinus Aestuum is also different from that of the Mg-rich spinels, which are associated with impact structures. This may suggest that the spinel at Sinus Aestuum is a different origin from that of the Mg-rich spinel.
    Print ISSN: 0094-8276
    Electronic ISSN: 1944-8007
    Topics: Geosciences , Physics
    Published by Wiley on behalf of American Geophysical Union (AGU).
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  • 9
    Publication Date: 2015-06-04
    Description: Xenopus laevis (African clawed frog) has two types of proto-type galectins that are similar to mammalian galectin-1 in amino acid sequence. One type, comprising xgalectin-Ia and -Ib, is regarded as being equivalent to galectin-1, and the other type, comprising xgalectin-Va and -Vb, is expected to be a unique galectin subgroup. The latter is considerably abundant in frog skin; however, its biological function remains unclear. We determined the crystal structures of two proto-type galectins, xgalectin-Ib and -Va. The structures showed that both galectins formed a mammalian galectin-1-like homodimer, and furthermore, xgalectin-Va formed a homotetramer. This tetramer structure has not been reported for other galectins. Gel filtration and other experiments indicated that xgalectin-Va was in a dimer–tetramer equilibrium in solution, and lactose binding enhanced the tetramer formation. The residues involved in the dimer–dimer association were conserved in xgalectin-Va and -Vb, and one of the Xenopus (Silurana) tropicalis proto-type galectins, but not in xgalectin-Ia and -Ib, and other galectin-1-equivalent proteins. Xgalectin-Va preferred Galβ1-3GalNAc and not Galβ1-4GlcNAc, while xgalectin-Ib preferred Galβ1-4GlcNAc as well as human galectin-1. Xgalectin-Va/Vb would have diverged from the galectin-1 group with accompanying acquisition of the higher oligomer formation and altered ligand selectivity.
    Print ISSN: 0959-6658
    Electronic ISSN: 1460-2423
    Topics: Biology , Medicine
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  • 10
    Publication Date: 2015-05-28
    Description: In this study, we examined the role of aminopeptidases with reference to endoplasmic reticulum aminopeptidase 1 (ERAP1) in nitric oxide (NO) synthesis employing murine macrophage cell line RAW264.7 cells activated by lipopolysaccharide (LPS) and interferon (IFN)- and LPS-activated peritoneal macrophages derived from ERAP1 knockout mouse. When NO synthesis was measured in the presence of peptides having N-terminal Arg, comparative NO synthesis was seen with that measured in the presence of Arg. In the presence of an aminopeptidase inhibitor amastatin, NO synthesis in activated RAW264.7 cells was significantly decreased. These results suggest that aminopeptidases are involved in the NO synthesis in activated RAW264.7 cells. Subsequently, significant reduction of NO synthesis was observed in ERAP1 knockdown cells compared with wild-type cells. This reduction was rescued by exogenously added ERAP1. Furthermore, when peritoneal macrophages prepared from ERAP1 knockout mouse were employed, reduction of NO synthesis in knockout mouse macrophages was also attributable to ERAP1. In the presence of amastatin, further reduction was observed in knockout mouse-derived macrophages. Taken together, these results suggest that several aminopeptidases play important roles in the maximum synthesis of NO in activated macrophages in a substrate peptide-dependent manner and ERAP1 is one of the aminopeptidases involved in the NO synthesis.
    Print ISSN: 0021-924X
    Electronic ISSN: 1756-2651
    Topics: Biology , Chemistry and Pharmacology
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