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  • 1
    Monograph available for loan
    Monograph available for loan
    Darmstadt : Wiss. Buchgesellschaft
    Call number: M 91.0644
    Type of Medium: Monograph available for loan
    Pages: 276 S., 12 Anhangs.
    Language: German
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Call number: M 92.0834 ; M 91.0343 ; AWI G6-92-0159 ; M 92.0293 ; M 92.0540
    Description / Table of Contents: The spectrum of physical and chemical dating methods now covers the entire range of earth history. But there are so many methods that it is becoming increasingly difficult to select those that are appropriate for solving a specific problem. The objective of this book is to cover the whole spectrum of methods and to give examples of their applications. Thus it is addressed to everybody interested in the application of physical and chemical dating methods to the geosciences and archeology. It is especially valuable as a concise, but comprehensive reference for students and practitioners.
    Type of Medium: Monograph available for loan
    Pages: XI, 503 S. : Ill., graph. Darst.
    ISBN: 3540512764
    Classification:
    Stratigraphy
    Classification:
    Stratigraphy
    Language: English
    Note: Contents: 1 Introduction. - 2 Time Scales and Ages. - 2.1 Absolute Time Scales. - 2.2 Relative Time Scales. - 2.3 Physical and Chemical Time Scales. - 3 Selection, Collection, Packing, Storage, Transport,and Description of the Samples. - 3.1 Selection and Collection of the Samples. - 3.2 Packing, Storage, and Transport of the Samples. - 3.3 Sample Description. - 4 Treatment and Interpretation of the Raw Data. - 4.1 Suitability of a Sample for Dating and Reliabilityof the Dates. - 4.1.1 Soft-Rock Dating. - 4.1.2 Hard-Rock Dating. - 4.1.3 Isotope Geochemistry. - 4.2 Mathematical Evaluation of Physical and Chemical Age Data. - 4.2.1 Rules for Simple Calculations with the Dating Results; Statistical Tests. - 4.2.2 Comparison of Age Values. - 4.2.3 Numerical and Graphical Evaluation of Age Values. - 4.3 Publication of the Age Values. - 5 Physical Dating Methods. - 5.1 Principles. - 5.2 Sample Treatment and Measurement Techniques. - 5.2.1 Sample Treatment. - 5.2.1.1 Hard-Rock Samples. - 5.2.1.2 Soft-Rock Samples. - 5.2.2 Radioactivity Measurements: Decay Counting Methods. - 5.2.2.1 Gas-Filled Proportional and Geiger-Müller Counters. - 5.2.2.2 Scintillation Counters. - 5.2.2.3 Semiconductor Detectors. - 5.2.3 Measurement of Stable and Long-Lived Isotopes: Atom Counting Methods. - 5.2.3.1 Mass Spectrometry (MS). - 5.2.3.2 Accelerator Mass Spectrometry (AMS). - 5.2.3.3 Resonance-Ionization Spectrometry (RIS). - 5.2.4 Other Analytical Techniques. - 5.2.4.1 Isotope Dilution Analysis (ID). - 5.2.4.2 Neutron Activation Analysis (NAA). - 5.2.4.3 Flame Photometry, Atomic Absorption Spectrometry (AA) and Inductive Coupled Plasma Analysis (ICP). - 5.2.4.4 Ion-Microprobe (IMP) and Laser Microprobe Mass Analysis (LAMMA). - 5.2.4.5 X-Ray Fluorescence Analysis (XRF) . - 6 Radiometric Dating Methods. - 6.1 Parent/Daughter Isotope Ratios as a Geochronometer. - 6.1.1 Potassium/Argon (40K/40Ar) Method. - 6.1.1.1 Conventional Potassium/Argon (40K/40Ar) Method. - 6.1.1.2 Argon/Argon (39Ar/40Ar) Method. - 6.1.2 Potassium/Calcium (40K/40Ca) Method. - 6.1.3 Rubidium/Strontium (87Rb/87Sr) Method. - 6.1.4 Lanthanum/Cerium (138La/138Ce) Method. - 6.1.5 Lanthanum/Barium (138La/138Ba) Method. - 6.1.6 Samarium/Neodymium (147Sm/143Nd) Method. - 6.1.7 Lutetium/Hafnium (176Lu/176Hf) Method. - 6.1.8 Rhenium/Osmium (187Re/187Os) Method. - 6.1.9 Uranium/Thorium/Lead Methods (238U/206Pb, 235U/207Pb and 232Th/208Pb Methods). - 6.1.10 Common Lead Method. - 6.1.11 Lead/Lead (207Pb/206Pb) Method. - 6.1.12 Chemical Lead Method. - 6.1.13 Lead/Alpha Method (Larsen Method). - 6.1.14 Krypton/Krypton (Krsf/Krn) Method. - 6.1.15 Xenon Methods. - 6.1.15.1 Uranium/Xenon (U/Xesf) Method. - 6.1.15.2 Xenon/Xenon (Xesf/Xen) Method. - 6.2 Dating with Cosmogenic Radionuclides. - 6.2.1 Radiocarbon (14C) Method. - 6.2.2 Tritium (3H) Methods. - 6.2.2.1 Classical Tritium (3H) Method. - 6.2.2.2 Tritium/Helium-3 (3H/3He) and Helium-3 (3He)Methods. - 6.2.3 Beryllium-10 (10Be) Method. - 6.2.4 Sodium-22 (22Na) Method. - 6.2.5 Aluminium-26 (26Al) Method. - 6.2.6 Silicon-32 (32Si) Method. - 6.2.7 Chlorine-36 (36Cl) Method. - 6.2.8 Argon-39 (39Ar) Method. - 6.2.9 Calcium-41 (41Ca) Method. - 6.2.10 Manganese-53 (53Mn) Method. - 6.2.11 Krypton-81 (81Kr) Method. - 6.2.12 Iodine-129 (129I) Method. - 6.2.13 Aluminium-26/Beryllium-10 (26Al/10Be) Method. - 6.2.14 Beryllium-10/Chlorine-36 (10Be/36Cl) Method. - 6.3 Dating Based on Radioactive Disequilibrium of the Uranium, Thorium, and Protactinium Decay Series: The Uranium/Thorium/Protactinium Methods. - 6.3.1 230Th/234U Method. - 6.3.2 231Pa/235U Method. - 6.3.3 231Pa/230Th Method. - 6.3.4 234U/238U Method. - 6.3.5 230Th-excess Method. - 6.3.6 231Pa-excess Method. - 6.3.7 230Th-excess/232Th or 230Th/238U Method. - 6.3.8 231Pa-excess/23Th-excess Method. - 6.3.9 234Th-excess Method. - 6.3.10 228Th-excess/232Th Method. - 6.3.11 Dating Methods Based on Supported 226Ra and Unsupported 226Ra. - 6.3.12 224Ra and 228Ra Methods. - 6.3.13 210Pb Method. - 6.3.14 Uranium/Helium (U/He) Method. - 6.3.15 Radium/Radon Method. - 6.4 Age Determination Using Radiation Damage. - 6.4.1 Thermoluminescence (TL) Method. - 6.4.2 Optical Dating (OSL) Method. - 6.4.3 Electron Spin Resonance (ESR or EPR) Method. - 6.4.4 Exo-Electron Method (TSEE Method). - 6.4.5 Thermally Stimulated Current (TSC) Method. - 6.4.6 Differential Thermoanalysis (DTA). - 6.4.7 Fission Track Method (FT Method). - 6.4.8 Alpha-Recoil Track Method. - 6.4.9 Age Determination Using Pleochroic Haloes. - 6.5 Dating Meteorites and Lunar Rocks. - 6.5.1 Introduction. - 6.5.2 Sample Preparation and Measurement. - 6.5.3 Formation Interval. - 6.5.4 Solidification Ages. - 6.5.5 Gas Retention Ages. - 6.5.6 Cosmic Ray Exposure Ages. - 6.5.7 Terrestrial Ages of Meteorites. - 7 Chronostratigraphic Methods Using Global Time Markers. - 7.1 Paleomagnetic Dating Methods. - 7.2 Chronostratigraphic Time-Scale Using [Delta] 18O Values. - 7.3 Chronostratigraphic Time-Scale Using [Delta] 34S and [Delta] 13C Values and 87Sr/86Sr Ratios. - 7.4 Artificial Radionuclides as Time Markers. - 7.5 Geochemical Time Markers. - 7.6 Chemical Pollution as Time Markers. - 8 Chemical Dating Methods. - 8.1 Amino-Acid Racemization Method (AAR). - 8.2 Amino-Acid Degradation Method. - 8.3 Dating of Bones Using the Nitrogen or Collagen Content. - 8.4 Chemical Electron-Spin-Resonance (ESR) Dating. - 8.5 Molecular (Protein and DNA) Clocks. - 8.6 Obsidian Hydration Method. - 8.7 Dating of Man-Made Glass. - 8.8 Calcium Diffusion and Cation-Ratio Methods. - 8.9 Dating of Bones Using the Fluorine or Uranium Content. - 9 Phanerozoic Time-Scale. - 9.1 Objectives and History of Geochronolgy. - 9.2 Geological Time-Scales. - 9.3 The Future. - 10 Literature. - 10.1 Journals that Frequently Publish Geochronological Papers. - 10.2 Geochronology Textbooks. - 10.3 References. - Acknowledgments. - Appendix A: Geochronology Glossary. - Appendix B: Radioactive and Stable Isotopes in Geochronology. - Appendix C: List of Addresses. - Subject Index. - Foldout Table: Dating Methods, Ranges, and Materials.
    Location: Upper compact magazine
    Location: Upper compact magazine
    Location: AWI Reading room
    Location: Upper compact magazine
    Location: Upper compact magazine
    Branch Library: GFZ Library
    Branch Library: GFZ Library
    Branch Library: AWI Library
    Branch Library: GFZ Library
    Branch Library: GFZ Library
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  • 3
    Call number: AWI G6-94-0024b ; AWI G6-94-0024a
    Type of Medium: Monograph available for loan
    Pages: 163 S. : 21 Fig., 6 Tab., 1 Faltbl. ; 30 cm
    ISBN: 3876390192
    Series Statement: Clausthaler Tektonische Hefte 19
    Branch Library: AWI Library
    Branch Library: AWI Library
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  • 4
    Call number: SR 90.0064(11)
    In: Clausthaler tektonische Hefte
    Type of Medium: Series available for loan
    Pages: 118 S.
    Series Statement: Claustahler tektonische Hefte 11
    Language: German
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 5
    Call number: SR 90.0064(19)
    In: Clausthaler tektonische Hefte
    Type of Medium: Series available for loan
    Pages: X, 163 S.
    ISBN: 3876390192
    Series Statement: Clausthaler tektonische Hefte 19
    Language: German
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 57 (1970), S. 564-567 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1573-0417
    Keywords: fossil groundwater ; reservoir effect ; seasonally-laminated sediments ; subtropical Andes ; paleomonsoon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract Precipitation rates in the Atacama Altiplano 22–24°S were 400–500 mm yr−1 during late glacial and early Holocene times as opposed to 200 mm yr−1 today. This humid phase (Tauca phase) was likely due to strengthened tropical (monsoonal) circulation, which brought continental moisture to the Atacama Altiplano. The lake level of Laguna Lejía (23°30′S, 4350 m) at that time was up to 25 m higher than it is today. Mg/Ca and Sr/Ca data from lake sediments show that, what today is a highly saline lake was a freshwater lake at that time. Seasonally-laminated calcareous sediments were deposited between 13 500 and 〈10 400 yr B.P. indicating the maximum of the humid phase. Climatic changes in the past are important for current groundwater resources.14C and3H data from lake-, ground- and well water suggest that modern groundwater formation (i.e. water 〈40 years) in the Altiplano is very limited under current arid conditions. We conclude that significant amounts of the water resources in this area originated during the time of the late-glacial and early Holocene humid climate. Tritium data from snow samples show that the moisture in the Altiplano at 22–24°S is mainly of continental origin, whereas precipitation from the westerlies hardly contributes to the water supply in this area. This precipitation pattern matches the paleodata, and we suggest that current precipitation formation may provide an analogue framework for late-glacial circulation in this area.
    Type of Medium: Electronic Resource
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  • 8
  • 9
    Publication Date: 1997-01-01
    Description: To obtain a better understanding of the relationship between calcrete genesis and the results of different absolute dating methods, thermoluminescence (TL), radiocarbon (14C) and uranium/thorium (U/Th) were applied to coeval sample; take from a very young calcrete profile in Namibia. The methodically different ages reflect the characteristics of the applied dating methods, the genetics of calcrete and different events of calcrete genesis. The conventional 14C ages and the TL dates cover the last 50 ka, while the corresponding U/Th dates of coeval samples are many times larger, Uranium-series dates are not related to the deposition of the host material or to its cementation if the ages are smaller than ca. 120 ka. The TL clock is set to zero during eolian transport and the corresponding radiometric ages of the quartz and feldspar grains date the time of their deposition. The 14C ages of the cement correspond, on the other hand, to a time shortly after the onset of the cementation and long before its termination. In the case of very old calcrete, the mixture of young and old cement results in ambiguous ages if they cannot be confirmed by an independent technique.
    Print ISSN: 0033-8222
    Electronic ISSN: 1945-5755
    Topics: Archaeology , Energy, Environment Protection, Nuclear Power Engineering , Geosciences
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  • 10
    Publication Date: 1983-01-01
    Description: A test for the reliability of 14C dating of soil was made at two sites with buried, autochthonous, and in parts, allochthonous sandy podzols, dated either litho- and pedostratigraphically or palynologically. The differences between the age ranges obtained and the apparent mean residence times (AMRT) calculated from the 14C content of alkaline extracts from fossil soil layers and horizons lean in organic matter exceed 10,000 years, corresponding to a maximum contamination with recent carbon of up to 50 %. The use of correction factors for the apparent mean residence times of podzols is not valid, not even for climate zones, because these values have a broad scatter for the same profile.
    Print ISSN: 0033-8222
    Electronic ISSN: 1945-5755
    Topics: Archaeology , Energy, Environment Protection, Nuclear Power Engineering , Geosciences
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