Problems or non-problems     

Edward D. Goldberg 《Marine pollution bulletin》1982,13(1):1-2

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Uranium isotopes in the Greenland ice-sheet     

Minoru Koide  Edward D. Goldberg 《Earth and Planetary Science Letters》1983,65(2):245-248

The²³⁴U/²³⁸U activity ratio was measured in dated strata of the Dye-3 Greenland ice-sheet. Values were generally less than unity indicating a source in weathered crustal rock debris. Three levels showed elevated ratios which are attributed to entry of debris from the aborted Russian satellite Cosmos 954 following residence in the stratosphere.  相似文献   

Editors and revolutions     

Edward D. Goldberg 《Marine pollution bulletin》1981,12(7):225-226

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Magnetotelluric profile across the Dead Sea rift in Northern Israel     

Y. Rotstein  S. Goldberg 《Tectonophysics》1981,80(1-4):147-164

A series of magnetotelluric soundings were carried out in and on both sides of the Dead Sea rift in northern Israel. The more interesting result of this survey is the discovery of a high-conductivity layer within the crust and at a depth of probably less than 15 km. The depth to this layer is shallower than found elsewhere in Israel for the same layer. The high conductivity is not influenced by the presence of the rift and no indication was found for changes in the deep crustal structure across the rift. Information about the characteristics of the resistivity of the sedimentary layer is presented but is less certain. Determination of high-resistivity basement in the rift and the Golan Heights indicates a throw of about 2000 m on the rift eastern fault in this region.  相似文献   

The new 14C chronology for the Palaeolithic site of La Ferrassie,France: the disappearance of Neanderthals and the arrival of Homo sapiens in France     

S. Talamo  V. Aldeias  P. Goldberg  L. Chiotti  H. L. Dibble  G. Guérin  J.-J. Hublin  S. Madelaine  R. Maria  D. Sandgathe  T. E. Steele  A. Turq  S. J. P. Mcpherron 《第四纪科学杂志》2020,35(7):961-973

The grand abri at La Ferrassie (France) has been a key site for Palaeolithic research since the early part of the 20th century. It became the eponymous site for one variant of Middle Palaeolithic stone tools, and its sequence was used to define stages of the Aurignacian, an early phase of the Upper Palaeolithic. Several Neanderthal remains, including two relatively intact skeletons, make it one of the most important sites for the study of Neanderthal morphology and one of the more important data sets when discussing the Neanderthal treatment of the dead. However, the site has remained essentially undated. Our goal here is to provide a robust chronological framework of the La Ferrassie sequence to be used for broad regional models about human behaviour during the late Middle to Upper Palaeolithic periods. To achieve this goal, we used a combination of modern excavation methods, extensive geoarchaeological analyses, and radiocarbon dating. If we accept that Neanderthals were responsible for the Châtelperronian, then our results suggest an overlap of ca. 1600 years with the newly arrived Homo sapiens found elsewhere in France.  相似文献   

贵州瓮安陡山沱组剖面碳同位素生物地球化学研究   总被引：4，自引：0，他引：4  

郭庆军  刘丛强  Harald Strauss  杨卫东 《矿物岩石》2005,25(2):75-80

在对扬子地台贵州瓮安陡山沱组剖面干酪根碳同住素组成进行分析后发现其变化显示了一定的规律性。碳同住素规律变化反映了最初的沉积信息,特别是有机质埋藏量的变化。获得的陡山沱期沉积岩中碳同位素组成研究结果初步反映了震旦一寒武交变期沉积环境的面貌;碳同位素组成变化规律可以用于反映扬子地台沉积层序和世界同期地层全球碳循环的对比和参考。为扬子区陡山沱期环境变化和生物演化提供了证据。δ^13Cker值在-32．3‰和-24．5‰(PDB)间漂移与δ^13Ccarb值在-4．9‰和3．6‰(PDB)间的变化,反映了当时海水的碳同位素组成。无机和有机碳同位素组成之差的△δorg-carb值沿剖面不断变化,是由于沉积有机质中有促进发酵功能的细菌数量比例变化所致。  相似文献   

Short contribution: A new method of analyzing and documenting micromorphological thin sections using flatbed scanners: Applications in geoarchaeological studies     

Trina L. Arpin  Carolina Mallol  Paul Goldberg 《Geoarchaeology》2002,17(3):305-313

Much of the information in micromorphological thin sections exists at the mesoscopic level. The use of flatbed scanners can improve analysis at this level and aid in preservation of the information. This article describes scanning in both plane and cross‐polarized light and discusses the hardware and software required. © 2002 Wiley Periodicals, Inc.  相似文献   

Short contribution: Strategies and techniques in collecting micromorphology samples     

Paul Goldberg  Richard I. Macphail 《Geoarchaeology》2003,18(5):571-578

Micromorphology plays an important role in understanding the context and formation of archaeological deposits and soils. However, little information about the strategies and considerations for collecting samples for micromorphological analysis has been published. This is especially so for stony or crumbly deposits that are difficult to remove while preserving their undisturbed nature. We present several techniques and strategies to facilitate the collection of micromorphological samples by people with limited experience. © 2003 Wiley Periodicals, Inc.  相似文献