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  • Springer  (2)
  • Singapore :Springer Singapore Pte. Limited,  (1)
  • 1
    Online Resource
    Online Resource
    Three-Dimensional Architecture and Paleoenvironments of Osaka Bay : An Integrated Seismic Study on the Evolutionary Processes of a Tectonic Basin. (2018)
    Singapore :Springer Singapore Pte. Limited,
    Details
    Keywords: Sedimentary basins. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (127 pages)
    Edition: 1st ed.
    ISBN: 9789811305771
    Series Statement: Advances in Geological Science Series
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=5407235
    DDC: 552.5
    Language: English
    Note: Intro -- Preface -- Acknowledgements -- Contents -- 1 Tectonic Context of the Study Area -- 1.1 Plate Tectonic Framework of the Eastern Eurasian Margin -- 1.1.1 Chronicle of Plate Motions Since 100 Ma -- 1.1.2 Present-Day Configuration -- 1.2 Tectonic Epochs of Southwest Japan-Previous Studies -- 1.2.1 Paleomagnetism -- 1.2.2 Reflection Seismic Survey -- 1.3 Recent Crustal Movements Revealed by Geodetic Observation -- 1.4 Spatiotemporal Overview of the Osaka Sedimentary Basin -- 1.4.1 Paleogeography -- 1.4.2 Active Faults on Land -- 1.4.3 Geophysical Studies -- References -- 2 Basic Knowledge-Stratigraphy of the Osaka Group -- 2.1 Overview of Sedimentary Basins -- 2.2 Chronology -- 2.2.1 Biostratigraphy -- 2.2.2 Magnetostratigraphy -- 2.2.3 Tephrochronology -- 2.3 Paleoenvironment -- 2.4 Deep Boring Survey -- 2.4.1 Onshore Data -- 2.4.2 Offshore Data -- 2.5 Tectonic Movements Deduced from Burial History -- 2.5.1 Isotope Stage Boundaries -- 2.5.2 Subsurface Datum Levels -- 2.5.3 Differential Subsidence of Northern Osaka Basin -- References -- 3 Reflection Seismic Data -- 3.1 Dataset -- 3.2 Correlation Between Subsurface Datum Planes and Seismic Horizons -- 3.3 Systematic Descriptions -- 3.3.1 Data Acquired by Geological Survey of Japan, AIST -- 3.3.2 Data Acquired by Hydrographic and Oceanographic Department, JCG -- 3.3.3 Data Acquired by Hyogo Prefecture -- 3.3.4 Data Acquired by Osaka Soil Test Laboratory, GRI -- 3.3.5 Auxiliary Data -- 3.4 Results -- 3.4.1 Structural Architecture -- 3.4.2 Basin Accommodation -- References -- 4 Discussion-Origin and Evolution of the Osaka Basin -- 4.1 Comparison Between Proximal and Peripheral Parts of the Basin -- 4.2 Marine-Land Connectivity of Major Structural Trends -- 4.2.1 Awaji-Rokko Fault System and Osaka Bay Fault -- 4.2.2 N-S Warping Zones -- 4.2.3 Median Tectonic Line. , 4.2.4 Broad Contractional Horsts off the Eastern Coast of Awaji Island -- 4.3 Evolutionary Process of the Osaka Basin-A Tectonic Model -- 4.3.1 A Synthesis of the Plio-Pleistocene Tectonic Events -- 4.3.2 Structural Framework of the Present Osaka Basin -- References.
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  • 2
    Electronic Resource
    Electronic Resource
    Stratigraphy of multiple piston-core sediments for the last 30,000 years from Lake Biwa, Japan (2000)
    Springer
    Journal of paleolimnology 23 (2000), S. 185-199 
    Details
    ISSN: 1573-0417
    Keywords: Lake Biwa ; piston core ; volcanic ash ; magnetic susceptibility ; tephrostratigraphy ; sedimentation rate ; paleoenvironment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract Analysis of seven piston cores obtained from three sites in Lake Biwa provide a detailed stratigraphy of the lake sediments for the last 30 kyrs. Description of lithology and measurement of magnetic susceptibility reveal occurrence of volcanic ashes at ten horizons, that were visually observed or microscopically found from clayey sediments. Most ash layers are observed in multiple cores from the three sites and also in earlier cores, establishing correlation and age assignment of the core sediments. This result demonstrates usefulness of magnetic susceptibility data in finding dispersed volcanic ashes. The age-depth curves deduced from published tephra ages show that significant difference in sedimentation rates occurs in Lake Biwa. The central part of the depression is characterized by homogeneous sediments deposited with a high sedimentation rate. The 250-m-thick lacustrine clay in this sub-basin has great potential for high-resolution study of the past environment and paleomagnetism for the last 0.5 Myr.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008079418715
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  • 3
    Electronic Resource
    Electronic Resource
    Quaternary changes in delivery and accumulation of organic matter in sediments of Lake Biwa, Japan (1997)
    Springer
    Journal of paleolimnology 18 (1997), S. 211-218 
    Details
    ISSN: 1573-0417
    Keywords: δ13C organic ; glacial-interglacial cycles ; mass accumulation rates ; C/N ratios
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract A 911-m-long sediment core from Lake Biwa, Japan, provides a record of organic matter delivery and accumulation in this large lake during a succession of tectonic and climatic changes dating back to the latest Pliocene. Sediments deposited since 430 ky are profundal; older sediments vary in setting between shallow-water and fluviodeltaic conditions, with occasional deep-water intervals. C/N ratios identify algal production as the dominant source of organic matter throughout the core, although the proportion of land-derived contributions episodically increases in the fluviodeltaic and shallow-water sediments. Rates of organic matter delivery and burial in lake sediments change in response to glacial-interglacial climate changes over the past 430 ky. Sediments deposited during interglacial intervals have organic carbon mass accumulation rates up to 9 times greater than those from glacial intervals, reflecting interglacial climates that were wetter than glacial climates. Algal production of organic matter increased during interglacial times because of greater wash-in of soil nutrients, and organic matter preservation was enhanced because of faster sedimentation rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007913901723
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    Paper (German National Licenses)
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