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Journal of Micropalaeontology, 2002, 21(part 1):51-65Thirteen shallow boreholes were drilled by theQattara Project Authority (QPA) on the top ofthe second limestone ridge in the El-Dabaa area,along the Mediterranean coast. northwest Egypt.Five foraminiferal biozones could be recognizedin ascending stratigraphic order: the Heterosteginacostata, Praeorbulina sicana, Borelis melomelo, Globigerinoides obliquus extremus zonesand an un-named zone, embracing the MiddleMiocene Marmarica Formation and the Pliocene-PleistoceneAlexandria Formation. Thedeposition of the fossiliferous carbonate rocks ofthe Marmarica Formation probably took place ina warm water, inner shelf environment (0-20mpalaeodepth) subjected to some current activity,and with salinity ranging from normal to slightlyhypersaline (35-50parts per thousand). Thesediments of the oncolitic/shelly rocks were depositedin slightly deeper water than the overlyingfossiliferous rocks and in less agitated conditions,as indicated from the high percentages ofrotaliids and rarity of miliolids. The foraminiferalassociations in the Alexandria Formationindicate a clear, relatively agitated, near-shoremarine depositional environment in a vegetatedinner neritic zone (10-25m palaeodepth) with25degreesC surface water isotherms. On theother hand, the accumulation of the clayey sedimentsand some geosoils (basal part of the AlexandriaFormation) occurred in less agitated, intertidalwater conditions, as deduced from theoccurrence of planktic foraminiferal species asGlobigerinoides trilobus trilobus, G. trilobusimmaturus. G. obliquus extremus, G. obliquusobliquus, Globorotalia inflata, and Orbulina universa.2008040598西 藏 札 达 盆 地 晚 新 生 代 地 层 学 和 古 地 磁 年 代学 以 及 青 藏 高 原 抬 升 记 录 = Late CenozoicStratigraphy and Paleomagnetic Chronology ofthe Zanda Basin,Tibet, and Records of the Upliftof the Qinghai-Tibet Plateau. ( 英 文 ). MengXiangang; Zhu Dagang; Shao Zhaogang; YangChaobin; Han Jianen; Yu Jia; Meng Qingwei; LuRongping. Acta Geologica Sinica, 2008, 82(1):63-72The characteristics of Late Cenozoic tectonicuplift of the southern margin of the Qinghai-Tibet Plateau may be inferred from fluviolacustrinestrata in the Zanda basin, Ngari, Tibet.Magnetostratigraphic study shows that the verythick fluvio-lacustrine strata in the basin are5.89- 0.78 Ma old and that their deposition persistedfor 5.11 Ma, i.e. starting at the end of theMiocene and ending at the end of the early Pleistocene,with the Quaternary glacial stage startingin the area no later than 1.58 Ma.Anal...2008040599新 生 代 年 代 地 层 学 未 解 决 的 问 题 = Unresolvedissues in Cenozoic chronostratigraphy.( 英 文 ). Fluegeman R H. Stratigraphy, 2007,4(2/3): 109-116Cenozoic chronostratigraphy has been an activearea of research over the past 50 years. Theexpanding search for energy and the developmentof international scientific drilling have resultedin a wealth of stratigraphic data. Manyissues in Cenozoic chronostratigraphy, however,remain unresolved. For example, of the 18 recognizedstages within the Cenozoic, only 9 havea ratified Global Stratotype Section and Point(GSSP). Only the Pliocene Series has all of itscomponent stages defined by GSSPs. Good progresshasbeen made on the remaining 9 stages.Almost all have guide events identified whichshould serve for correlation and many have candidatesections which may serve as GSSPs. Theoutlook is good for the ratification of all CenozoicGSSPs within several years but the targetdate of 2008 may be too optimistic. At leastthree other unresolved issues dealing with Cenozoicchronostratigraphy need further discussionand research. They include the status andchronostratigraphic rank of the Tertiary, thestage nomenclature at the Paleocene-Eoceneboundary, and the “decapitation” of the historicPriabonian Stage. The unresolved GSSPs representan immediate concern. The stability of correlationswithin the Cenozoic depends on theestablishmentand maintenance of GSSPs. Futurework on Cenozoic Earth history will be enhancedby the completion of this task.2008040600南 太 平 洋 中 始 新 世 的 气 候 旋 回 : 对 全 球 冰 量的 指 示 = Middle Eocene climate cyclicity in thesouthern Pacific: Implications for global ice volume.( 英 文 ). Burgess C E; Pearson P N; Lear CH; Morgans H E G. Geology, 2008, 36(8): 651-654We use a multiproxy approach to determinesurface and bottom water temperatures off thecoast of New Zealand during the middle Eoceneand to constrain the 18 O of seawater. We usethese data to place constraints on the size andvariability of global ice sheets at that time. TheHampden Section in South Island is characterizedby exceptionally well preserved micro fossilsand clear sedimentary cyclicity, providing aremarkable window into conditions at paleo latitude~55°S in the Pacific Ocean. The cyclicitywas studied in detail over a ~4m section correspondingto an interval of ~70 k.y., ca. 41.7 Ma.The sedimentary cycles are defined by fluctuationsin the sand (>63 µm) component, occurringon a wavelength of ~1m, corresponding to Mi-181