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  • Data  (9)
  • PANGAEA  (7)
  • GFZ German Research Center for Geosciences  (2)
  • 2020-2023  (2)
  • 1930-1934  (7)
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  • 1
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    Stress Map of Taiwan 2022 (2022)
    GFZ German Research Center for Geosciences
    Details
    Publication Date: 2022-01-11
    Description: Abstract
    Description: Stress maps show the orientation of the current maximum horizontal stress (SHmax) in the earth's crust. Assuming that the vertical stress (SV) is a principal stress, SHmax defines the orientation of the 3D stress tensor; the minimum horizontal stress Shmin is than perpendicular to SHmax. In stress maps SHmax orientations are represented as lines of different lengths. The length of the line is a measure of the quality of data and the symbol shows the stress indicator and the color the stress regime. The stress data are freely available and part of the World Stress Map (WSM) project. For more information about the data and criteria of data analysis and quality mapping are plotted along the WSM website at http://www.world-stress-map.org. The stress map of Taiwan 2022 is based on the WSM database release 2016. However, all data records have been checked and we added a large number of new data from earthquake focal mechanisms from the national earthquake catalog and from publications. The total number of data records has increased from n=401 in the WSM 2016 to n=6,498 (4,234 with A-C quality) in the stress map of Taiwan 2022 The update with earthquake focal mechanims is even larger since another 1313 earthquake focal mechanism data records beyond the scale of this map have been added to the WSM database. The digital version of the stress map is a layered pdf file generated with GMT (Wessel et al., 2019). It also provide estimates of the mean SHmax orientation on a regular 0.1° grid using the tool stress2grid (Ziegler and Heidbach, 2019). Two mean SHmax orientations are estimated with search radii of r=25 and 50 km, respectively, and with weights according to distance and data quality. The stress map and data are available on the landing page at https://doi.org/10.5880/WSM.Taiwan2022 where further information is provided. The earthquake focal mechanism that are used for this stress map are provided by the Taiwan Earthquake Research Center (TEC) available at the TEC Data Center (https://tec.earth.sinica.edu.tw).
    Description: Other
    Description: The World Stress Map (WSM) is a global compilation of information on the crustal present-day stress field. It is a collaborative project between academia and industry that aims to characterize the stress pattern and to understand the stress sources. It commenced in 1986 as a project of the International Lithosphere Program under the leadership of Mary-Lou Zoback. From 1995-2008 it was a project of the Heidelberg Academy of Sciences and Humanities headed first by Karl Fuchs and then by Friedemann Wenzel. Since 2009 the WSM is maintained at the GFZ German Research Centre for Geosciences and since 2012 the WSM is a member of the ICSU World Data System. All stress information is analysed and compiled in a standardized format and quality-ranked for reliability and comparability on a global scale.
    Type: Other , Other
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    DATA GFZ
  • 2
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    Stress Map of Great Britain and Ireland 2022 (2022)
    GFZ German Research Center for Geosciences
    Details
    Publication Date: 2022-03-10
    Description: Abstract
    Description: Stress maps show the orientation of the current maximum horizontal stress (SHmax) in the earth's crust. Assuming that the vertical stress (SV) is a principal stress, SHmax defines the orientation of the 3D stress tensor; the minimum horizontal stress Shmin is than perpendicular to SHmax. In stress maps SHmax orientations are represented as lines of different lengths. The length of the line is a measure of the quality of data and the symbol shows the stress indicator and the color the stress regime. The stress data are freely available and part of the World Stress Map (WSM) project. For more information about the data and criteria of data analysis and quality mapping are plotted along the WSM website at http://www.world-stress-map.org. The stress map of Great Britain and Ireland 2022 is based on the WSM database release 2016. All data records have been checked and we added a number of new data from earthquake focal mechanisms from the national earthquake catalog and borehole data. The number of data records has increased from n=377 in the WSM 2016 to n=474 in this map. Some locations and assigned quality of WSM 2016 data were corrected due to new information. The digital version of the map is a layered pdf generated with GMT (Wessel et al., 2019) using the topography of Tozer et al. (2019). We also provide on a regular 0.1° grid values of the mean SHmax orientation which have a standard deviation 〈 25°. The mean SHmax orientation is estimated using the tool stress2grid of Ziegler and Heidbach (2019). For this estimation we used only data records with A-C quality and applied weights according to data quality and distance to the grid points. The stress map is available at the landing page of the GFZ Data Services at http://doi.org/10.5880/WSM.GreatBritainIreland2022 where further information is provided.
    Description: Other
    Description: The World Stress Map (WSM) is a global compilation of information on the crustal present-day stress field. It is a collaborative project between academia and industry that aims to characterize the stress pattern and to understand the stress sources. It commenced in 1986 as a project of the International Lithosphere Program under the leadership of Mary-Lou Zoback. From 1995-2008 it was a project of the Heidelberg Academy of Sciences and Humanities headed first by Karl Fuchs and then by Friedemann Wenzel. Since 2009 the WSM is maintained at the GFZ German Research Centre for Geosciences and since 2012 the WSM is a member of the ICSU World Data System. All stress information is analysed and compiled in a standardized format and quality-ranked for reliability and comparability on a global scale.
    Keywords: crustal stress ; in situ stress ; tectonic stress ; crustal stress pattern ; geophysics ; tectonics ; EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 NEOTECTONICS ; EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 PLATE TECTONICS 〉 FAULT MOVEMENT ; EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 PLATE TECTONICS 〉 STRESS
    Type: Dataset , Dataset
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    DATA GFZ
  • 3
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    (Page 290) Composition of a manganese deposit sample from the Todoroki Mine, Japan (1934)
    PANGAEA
    In:  Supplement to: Yoshimura, T (1934): Todorokite, a new manganese mineral from the Todoroki mine, Hokkaido, Japan. Journal of the Faculty of Science of the Hokkaido Imperial University, 2, 289-297, https://rruff.info/uploads/JFSHIUS4GM2_289.pdf
    Details
    Publication Date: 2023-08-28
    Description: The Todoroki Mine is situated about 25 kilometers to the south-east of Ginzan railway station in Siribesi Province, Hokkaido. The author analysed an interesting specimen of black manganese-ore which had a fractured surface which looked like that of a broken piece of wood. This new manganese mineral was studied in its form, physical properties and chemical composition. The author later named this mineral form as "todorokite".
    Keywords: Aluminium oxide; Barium oxide; Calcium oxide; Deposit type; Description; Insoluble residue; Iron oxide, Fe2O3; Japan; Loss on ignition; Magnesium oxide; Manganese oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Oxygen; Phosphorus pentoxide; Potassium oxide; Sample ID; Silicon dioxide; Sodium oxide; Sulfur trioxide; Todoroki_Y; Water in rock; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 20 data points
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    DATA PANGAEA
  • 4
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    Observation of ferromanganese deposits in the Baltic Sea (1934)
    PANGAEA
    In:  Supplement to: Gripenberg, Stina (1934): A study of the sediments of the North Baltic and adjoining seas (Dissertation). Merentutkimuslaitoksen Julkaisu/Havsforskningsinstitutets Skrift (Journal of the Finnish Institute of Marine Research), 96, 121 pp
    Details
    Publication Date: 2023-08-28
    Description: Baltic sediments have been studied by Behrens, Munthe, Küppers, Spethmann, Apstein, Sjöstedt, Pratje and the writer. The following types of sediments have been observed: varved and non-varved late-glacial clays, gray and black, post-glacial muds, and sands. The organic content of late-glacial clays ordinarily is less than 1.3 per cent, and of post-glacial muds more than 3 per cent. Sediments containing intermediate quantities are scarce. This can be explained as a result of the changed balance between organic and inorganic sedimentation when the glacial period ended; the abundance of fresh detritus then suddenly ceased and inorganic sedimentation became very much slower than before; consequently, the relative amount of organic detritus increased. As most of the material was not subjected to biological analysis, it has not been possible to distinguish different ages among post-glacial sediments.
    Keywords: Baltic Sea; Date/Time of event; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; GRIP-F12; GRIP-F23; GRIP-F29A; GRIP-F30A; GRIP-F31; GRIP-F37; GRIP-F38; GRIP-F38B; GRIP-F43; GRIP-F48; GRIP-F55; GRIP-F57; GRIP-F6; GRIP-F7; GRIP-F74; GRIP-F9; GRIP-Hundoren; GRIP-Kobba_Klintar; GRIP-Porkkala; GRIP-Villingin; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Page(s); Position; Quantity of deposit; Sample ID; Sediment type; Shape; Size; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 182 data points
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    DATA PANGAEA
  • 5
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    (Table, Page 194) Measurement of radium inside a ferromanganese nodule from the Pacific Ocean (Carnegie 7 Expedition) (1933)
    PANGAEA
    In:  Supplement to: Piggot, C S (1933): Radium content of ocean-bottom sediments. American Journal of Science, s5-25(147), 229-238, https://doi.org/10.2475/ajs.s5-25.147.229
    Details
    Publication Date: 2023-08-28
    Description: The radium content of twenty-eight (twenty-seven from the Pacific) samples of ocean-bottom sediments was determined, and similar determinations reported by Joly and Pettersson are included for comparison. These comprise practically all such determinations that have been made, and the paucity of these data in comparison to the extent, importance, and high radium content of the material is emphasized. Those bottoms composed mostly or entirely of red clay generally contain more radium. A mechanism for explaining the high radium content of deep-sea sediments is suggested which does not coincide with the opinions of either Joly or Pettersson.
    Keywords: CARN_Revelle_79; CARN7-151; CARN-Cruise7; Carnegie; DEPTH, sediment/rock; Description; Dredge; DRG; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Radium
    Type: Dataset
    Format: text/tab-separated-values, 3 data points
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  • 6
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    (Table, page 500) Geochemistry of a pancake-shaped concretion from lake Charlotte, Canada (1932)
    PANGAEA
    In:  Supplement to: Kindle, Edward Martin (1932): Lacustrine concretions of manganese. American Journal of Science, 5(24), 496-504, https://doi.org/10.2475/ajs.s5-24.144.496
    Details
    Publication Date: 2023-08-28
    Description: A pancake-shaped concretion from Ship Harbour Lake, a small freshwater lake in eastern Nova Scotia (now named Lake Charlotte) is part of collection sent to the National Museum of Canada by Mr. R. A. Logan, of the Pan American Airvays. These concretions are of similar to the well-known marine concretions with a composition similar to wad. These are known only from abyssmal depths of the sea in the red clay deposits, while the present concretions occur in very shallow lake waters. They should be of interest to geologists, who may be concerned with the rather difficult problem which some concretions raise of distinguishing between concretions of syngenitic and epigenetic origin.
    Keywords: Aluminium oxide; Calcium oxide; Canada; Carbon dioxide; Event label; Grab; GRAB; Heavy metals; Iron oxide, Fe2O3; Iron oxide, FeO; Lake_Charlotte-S; Latitude of event; Longitude of event; Magnesium oxide; Manganese dioxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Sample elevation; Silicon dioxide; Water in rock; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 11 data points
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  • 7
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    Annotated record of the detailed examination of Mn deposits from “Michael Sars” North Atlantic Deep-Sea Expedition 1910 (1932)
    PANGAEA
    In:  Supplement to: Chumley, James (1932): Report on the deposit-samples collected during the "Michael Sars" North Atlantic Deep-Sea Expedition 1910. In: Report on the scientific results of the "Michael Sars" north Atlantic deep-sea expedition 1910, carried out under the auspices of the Norwegian government and the superintendence of Sir John Murray, K.C.B., and Dr. Johan Hjort. The Trustees of the Bergen museum, Bergen. Volume 1, 12 pp, https://doi.org/10.5962/bhl.title.11322
    Details
    Publication Date: 2023-08-28
    Description: The deposit-samples and rock specimens brought home by the "Michael Sars" were received in the Challenger Office shortly after the return of the expedition, and upon examination the rock specimens proved to be so numerous and to offer so many points of interest that Dr. B. N. Peach, F. R. S., was requested to report upon them. A brief note on his results appeared in "The Depths of the Ocean" (London, Macmillan, 1912), pp. 202-209, and his detailed report was published in the Proc. Roy. Soc. Edin., vol. XXXII., pp. 262—291, 1912. When the author met Dr. Hjort in London in May 1914 he desired me to prepare, for publication in the series of Reports on the scientific Results of the "Michael Sars" North Atlantic Expedition, descriptions of the deposit samples, including for each station a brief summary of Dr. Peach's observations on the rock-specimens obtained. The accompanying Report shows that the "Michael Sars" expedition has made a notable contribution to our knowledge regarding the materials covering the floor of the North Atlantic Ocean.
    Keywords: Date/Time of event; Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Elevation of event; Event label; Latitude of event; Longitude of event; Michael Sars (1900); MS1910; MSARS-48; MSARS-58; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample ID; Sediment type; Size; South Atlantic Ocean; Substrate type
    Type: Dataset
    Format: text/tab-separated-values, 14 data points
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    DATA PANGAEA
  • 8
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    Chemistry of manganese concretions from the White Sea (1931)
    PANGAEA
    In:  Supplement to: Gorshkova, Tatyana I (1931): Chemical and mineralogical investigations of the sediments of the Barents and White Seas (in Russian). Trudy Gos. Okeanogr. Inst., 1(2-3), 83-127
    Details
    Publication Date: 2023-08-28
    Description: Fe-Mn aggregates are presented in the paper where flat and round concretions (from several mm to 10-12 cm in diameter) and Fe-Mn crusts on bivalves and polychaete tubes with different Fe-Mn ratio are described.
    Keywords: Aluminium oxide; Calcium oxide; DEPTH, sediment/rock; Description; Elevation of event; Event label; GORSW01; GORSW02; GORSW03; GORSW04; Identification; Iron oxide, Fe2O3; Latitude of event; Longitude of event; Loss on ignition; Magnesium oxide; Manganese dioxide; Manganese oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Phosphorus pentoxide; Silicon dioxide; Titanium dioxide; Wet chemistry; White Sea
    Type: Dataset
    Format: text/tab-separated-values, 63 data points
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    DATA PANGAEA
  • 9
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    (Pages 295-296) Chemical composition of external rind and core of a ferromanganese concretion from lake Irrsee, Austria (anciently called, Zellersee zum Mondsee) (1930)
    PANGAEA
    In:  Supplement to: Lasch, H (1930): Über Manganerz-Konkretionen vom Zellersee bei Mondsee = on the manganese concretions from lake Zellersee bei Mondsee. Zeitschrift für Kristallographie, Mineralogie und Petrographie, Tschermaks mineralogische und petrographische Mitteilungen, 40(3-4), 294-297, https://doi.org/10.1007/BF02938514
    Details
    Publication Date: 2023-08-28
    Description: The deposits studied by the author are crusts and coatings of manganese oxide (mixed psilomelane, wad and limonite) on a consolidated marl. They were recovered from the lake bottom at two points approximately 2 km apart and at a depth of about 18 to 22 m. The lake is deeper than a typical bog swamp and its bottom is a soft blueish and clayey marl. Some of its banks are occupied by moorlands. The occurence of manganese concretions seems to be limited to a few small perimeters. The author analysed both the rind and the carbonate core of one of these concretions (NOTE: The Austrian lake anciently called Zellersee zum Mondsee is now known as Irrsee).
    Keywords: Aluminium oxide; Austria; Barium oxide; Calcium oxide; Carbon dioxide; Deposit type; DEPTH, sediment/rock; Description; Identification; Iron oxide, Fe2O3; Lake_Irrsee; Magnesium oxide; Manganese dioxide; Manganese oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Silicon dioxide; Water content, dry mass; Wet chemistry
    Type: Dataset
    Format: text/tab-separated-values, 24 data points
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    DATA PANGAEA
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