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to OIS 3, compared to the more stable OIS 2 andOIS 1. Trends of dramatic warming through glacial-interglacialboundaries are followed by ageneral trend of decreasing temperatures towardsthe end of interglacial stages. This implies thatcolder episodes could also develop in the nearfuture of the Holocene at a sub-Milankovitchtime scale, after the end of the recent warmingphase. The oxygen and carbon isotopic signal ofthe sub-polar species N. pachyderma dextral,Turborotalita quinqueloba and Globigerina bulloides,from deglacial, interglacial and interstadialsediments, were analyzed for comparisonwith the signal of N. pachyderma sinistral. Ourinvestigation shows that the low relative abundanceof the polar morphotype of N. pachydermain sediments from warmer climates can yieldan isotopic signal that does not correspond to theprevailing climatic conditions of the area at thetime slice studied, probably for not being themost representative species of the sample. Thisfact is further supported by the older AMS 14Cage of N. pachyderma, compared to the ages ofthe sub-polar species from the same level. Thesignals of the three sub-polar species, on theother hand, show a more coherent trend in theintervals investigated and may reflect better theactual environmental conditions. Warm climaticepisodes within Oxygen Isotope Stage 6, indicatedby the high relative abundance of subpolarspecies, were not apparent in the oxygenisotope record of N. pachyderma sinistral, whilethe lower values of the isotopic records of thesub-polar species accurately reflect these warmerintervals.2008040231西 西 里 岛 西 北 三 叠 系 Lercara 组 中 发 现 的 早二 叠 世 Artinskian 最 早 期 再 沉 积 的 蜓 类 =Earliest Artinskian (early Permian)fusulinidsreworked in the Triassic Lercara formation (NWSicily). ( 英 文 ). Vachard D; Martini R. Journalof Foraminiferal Research, 2001, 31(1): 33-47 5图 版 .The Permian limestone boulders reworked inthe Triassic Lercara Formation (NW Sicily) containcarbonate microfossils consisting of algae,smaller foraminifers and fusulinids. The followingfusulinids are described: Quasifusulina ultimaKanmera, Robustoschwagerina cf. R. schellwieni(Hanzawa), Chalaroschwagerina (?) globosa(Schellwien). The group of Chalaroschwagerina(?) vulgaris (Schellwien) is emended.Based on this fusulinid assemblage, the limestoneboulders of Lercara are age-dated as earlyYakhtashian; i.e., earliest Artinskian (circa –280to –275 Ma). Therefore at least two distinct olistostromesare present in Sicily: the post-Yakhtashian olistostrome studied here, and thesecond one post-Dorashamian in age. Similarassemblages do not occur in adjacent Europeanareas (Camic Alps, Montenegro or Greece), butthey have been recorded in Darvas (North Pamir)and Japan, revealing constant paleoecologicalconditions throughout the Paleotethys.2008040232红 海 中 部 深 水 相 底 栖 有 孔 虫 = Deep-sea benthicforaminifera from the central Red Sea. ( 英文 ). Edelman-Furstenberg Y; Scherbacher M.Journal of Foraminiferal Research, 2001, 31(1):48-59The distribution of living (Rose Bengalstained),dead and fossil benthic foraminiferawas investigated in six short cores (multicores,30–32 cm total length) recovered from the centralRed Sea. The ecological preferences as wellas the relationship between the live anddead/fossil assemblages (preserved down-core)were examined. The sites, located along a W-Eprofile and between the depth of 366 and 1782 m,extend from the center of the oxygen minimumzone (OMZ, ~200–650 m), through its margin at~600 m, and down to the well-aerated deepwaterenvironment. Live (Rose-Bengal stained)and coexisting dead foraminifera were studied inthe upper 5cm of each of the sites, and the fossilrecord was studied down to ~32 cm. Q-modePrincipal Component Analysis was used andfour distinct foraminiferal fossil assemblageswere determined. These assemblages follow differentwater mass properties. In the center of theOMZ, where the organic carbon content is highestand the oxygen concentration is lowest (0.5ml O2/1), the Bolivina persiensis-Bulimina marginata-Discorbinellarhodiensis assemblagedominates. The slightly more aerated and lowerorganic-carbon-content seafloor, at the margin ofthe OMZ, is characterized by the Neouvigerinaporrecta-Gyroidinoides cf. G. soldanii assemblage.The transitional environment, between900–1200m, with its well-aerated and oligotrophicseafloor, is dominated by the Neouvigerinaampullacea-Cibicides mabahethi assemblage.The deeper water (>1500m), characterized bythe most oxygenated and oligotrophic seafloorconditions, is associated with the Astrononion sp.A-Hanzawaia sp. A assemblage. Throughout theRed Sea extremely high values of temperatureand salinity are constant below ~200m depth,but the flux of organic matter to the sea floorvaries considerably with bathymetry and appearsto be the main controlling factor governing thedistribution pattern of the benthic foraminifera.Comparison between live and the dead/fossilassemblages reveals a large difference betweenthe two. Processes that may control this differenceinclude species-specific high turnover rates,and preferential predation and loss of fragile taxa(either by chemical or microbial processes). Sig-74

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