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M. Sun - One of the best experts on this subject based on the ideXlab platform.
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erratum to platinum group element abundances in a Peat Layer associated with the tunguska event further evidence for a cosmic origin planetary and space science 52 2004 331 340
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340]
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:Abstract We have measured excesses of Pd, Rh, Ru, REE, Co, Sr, and Y in a Peat column from the Northern Peat bog of the 1908 Tunguska explosion site. Earlier, in this Peat column the presence of an Ir anomaly at the event Layers (30– 45 cm depth) has been found (Planet Space Sci. 48 (1998) 179). In these Layers, Pd, Rh, Ru, Co, Sr, and Y show pronounced anomalies of a factor 4–7 higher than the background value. In the event Layers there are also good correlations between the siderophile platinum group elements (Pd, Rh, Ru) and Co, indicators of cosmic material, which imply they might have the same source, i.e. the Tunguska explosive body. The patterns of CI-chondrite-normalized REE in the event Layers are much flatter than those in normal Peat Layers and different from those in the nearby traps. Furthermore, in these Layers the patterns of CI-chondrite-normalized PGEs and the element ratios (e.g. C/Pd, C/Rh, and between some siderophile elements) give evidence that the Tunguska explosive body was more likely a comet, although we cannot exclude the possibility that the impactor could be a carbonaceous asteroid. We have estimated the total mass of a solid component of the explosive body up to 103–106 tons.
Quanlin Hou - One of the best experts on this subject based on the ideXlab platform.
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erratum to platinum group element abundances in a Peat Layer associated with the tunguska event further evidence for a cosmic origin planetary and space science 52 2004 331 340
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340]
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:Abstract We have measured excesses of Pd, Rh, Ru, REE, Co, Sr, and Y in a Peat column from the Northern Peat bog of the 1908 Tunguska explosion site. Earlier, in this Peat column the presence of an Ir anomaly at the event Layers (30– 45 cm depth) has been found (Planet Space Sci. 48 (1998) 179). In these Layers, Pd, Rh, Ru, Co, Sr, and Y show pronounced anomalies of a factor 4–7 higher than the background value. In the event Layers there are also good correlations between the siderophile platinum group elements (Pd, Rh, Ru) and Co, indicators of cosmic material, which imply they might have the same source, i.e. the Tunguska explosive body. The patterns of CI-chondrite-normalized REE in the event Layers are much flatter than those in normal Peat Layers and different from those in the nearby traps. Furthermore, in these Layers the patterns of CI-chondrite-normalized PGEs and the element ratios (e.g. C/Pd, C/Rh, and between some siderophile elements) give evidence that the Tunguska explosive body was more likely a comet, although we cannot exclude the possibility that the impactor could be a carbonaceous asteroid. We have estimated the total mass of a solid component of the explosive body up to 103–106 tons.
Haider Al-ani - One of the best experts on this subject based on the ideXlab platform.
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Digital Geotechnical Maps and Classification of Soil Engineering Properties by Using GIS
2015Co-Authors: Haider Al-aniAbstract:Peat is a highly organic and extremely compressible soil. The Surfers Paradise study site area (Gold Coast, Queensland, Australia, located between 27.98° and 28.01° Southing, and between 153.41° and 153.43° Easting (based on the projection of Universal Transverse Mercator UTM zone 56) has a problematic multi thickness Peat Layer. The Peat Layer ranges from 0.1 – 7.0 m at different locations and at depths between 1.1 – 40.9 m below the ground surface. To avoid the effects of the highly compressible and low shear strength Peat Layer, the buildings in the study area have pile foundations. The site, which lies on the beach side, has the tallest high rise buildings and skyscrapers on the Gold Coast (e.g. the Q1 Tower, Queensland’s tallest building at the time of the study); it was also considered the tallest building in Australia. The literature review was undertaken to gain a geotechnical overview of problematic Peaty soils in relation to the construction of buildings over such soils. The review was divided into three categories: (1) geology of the Gold Coast; (2) engineering properties of Peat (organic Layer) and its effects on the engineering design; and (3) Geographic Information System (GIS) implementation in the field of the geotechnical engineering, as well as its suitability to characterise the soil profile in the production of GIS based digital zonation maps.
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Identifying Problematic Soil Layers in Surfers Paradise, Australia
2014Co-Authors: Haider Al-ani, Gary Chai, Alan Wee-chung LiewAbstract:Peat is a highly compressible soil. Surfers Paradise has a Peat Layer with different thickness at different locations. Buildings in the area are using pile foundations to avoid the Peat Layer. 35 locations in Surfers Paradise have investigated. Peat locations have been determined within the study area and thickness in each location has been identified. In-situ and laboratory tests results have been obtained for the soil within the study area. The variation of these properties has been plotted and examined. The Peat behaviours in Surfers Paradise are assessed and concluding remarks are drawn.
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GIS-based examination of Peats and soils in Surfers Paradise, Australia
Soil Science Annual, 2014Co-Authors: Haider Al-ani, Gary ChaiAbstract:The subsoil conditions of Surfers Paradise in Southeast Queensland of Australia have been examined in terms of soil stiffness by using geographic information system (GIS). Peat is a highly organic and compressible material. Surfers Paradise (as a study area) has problematic Peat Layer due to its high water content, high compressibility, and low shear strength. This Layer has various thicknesses at different locations ranging between R.L. . 10 to R.L. -19.6 m. Buildings in Surfers Paradise are using piled foundations to avoid the high compressibility and low shear strength Peat Layer. Spatial Analyst extension in the GIS ArcMap10 has been utilised to develop zonation maps for different depths in the study area. Each depth has been interpolated as a surface to create Standard Penetration Test SPT-N value GIS-based zonation maps for each depth. In addition, 8 interpolation techniques have been examined to evaluate which technique gives better representation for the Standard Penetration Test (SPT) data. Inverse Distance weighing (IDW) method in Spatial Analyst extension gives better representation for the utilised data with certain parameters. Two different cross sections have been performed in the core of the study area to determine the extent and the depth of the Peat Layer underneath already erected buildings. Physical and engineering properties of the Surfers Paradise Peat have been obtained and showed that this Peat falls within the category of tropical Peat.
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CATEGORISING GEOTECHNICAL PROPERTIES OF SURFERS PARADISE SOIL USING GEOGRAPHIC INFORMATION SYSTEM (GIS)
International Journal of Geomate, 2013Co-Authors: Haider Al-ani, Leila Eslami-andargoli, Gary ChaiAbstract:Peat is a highly organic and compressible soil. Surfers Paradise (as a study area) has problematic Peat Layer which has different thickness at different locations between R.L. -10 to -19.6 m below the ground surface. Buildings in Surfers Paradise are using piled foundations to avoid the high compressibility and low shear strength Peat Layer. In this paper, geotechnical borelogs are compiled from 51 soil investigation reports in the study area. These borelogs data are then imported into ArcGIS10 as digital Layers and converted into assessable formats by Geographic Information System (GIS). This technique has been utilised to produce digital zonation maps for the study area. The application of interpolation techniques allows the production of zonation maps and bring together years of geotechnical data. Standard Penetration Test (SPT) N values have been selected to determine the soil stiffness in the study area. These SPT-N values are then categorised to produce different zonation maps. The occurrence of Peat Layers can be located using these zonation maps. These GIS-based zonation maps will provide a better overview of subsurface geology, bed rock elevations, and geotechnical properties of the various soil types found in the study area.
N.v. Kolesnikova - One of the best experts on this subject based on the ideXlab platform.
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erratum to platinum group element abundances in a Peat Layer associated with the tunguska event further evidence for a cosmic origin planetary and space science 52 2004 331 340
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340]
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:Abstract We have measured excesses of Pd, Rh, Ru, REE, Co, Sr, and Y in a Peat column from the Northern Peat bog of the 1908 Tunguska explosion site. Earlier, in this Peat column the presence of an Ir anomaly at the event Layers (30– 45 cm depth) has been found (Planet Space Sci. 48 (1998) 179). In these Layers, Pd, Rh, Ru, Co, Sr, and Y show pronounced anomalies of a factor 4–7 higher than the background value. In the event Layers there are also good correlations between the siderophile platinum group elements (Pd, Rh, Ru) and Co, indicators of cosmic material, which imply they might have the same source, i.e. the Tunguska explosive body. The patterns of CI-chondrite-normalized REE in the event Layers are much flatter than those in normal Peat Layers and different from those in the nearby traps. Furthermore, in these Layers the patterns of CI-chondrite-normalized PGEs and the element ratios (e.g. C/Pd, C/Rh, and between some siderophile elements) give evidence that the Tunguska explosive body was more likely a comet, although we cannot exclude the possibility that the impactor could be a carbonaceous asteroid. We have estimated the total mass of a solid component of the explosive body up to 103–106 tons.
E.m. Kolesnikov - One of the best experts on this subject based on the ideXlab platform.
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erratum to platinum group element abundances in a Peat Layer associated with the tunguska event further evidence for a cosmic origin planetary and space science 52 2004 331 340
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340]
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:www.elsevier.com/locate/pss Erratum Erratum to “Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin” [Planetary and Space Science, 52 (2004) 331–340] Q.L. Houa;c;∗, E.M. Kolesnikovb, L.W. Xiea, N.V. Kolesnikovab, M.F. Zhouc, M. Sunc aLaboratory of Lithosphere Tectonic Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing 100029, People’s Republic of China bGeological Faculty of Moscow State University, Moscow 119899, Russia cDepartment of Earth Science, University of Hong Kong, Pokfulam Road, Hong Kong, People’s Republic of China
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Platinum group element abundances in a Peat Layer associated with the Tunguska event, further evidence for a cosmic origin
Planetary and Space Science, 2004Co-Authors: Quanlin Hou, E.m. Kolesnikov, L.w. Xie, N.v. Kolesnikova, M.f. Zhou, M. SunAbstract:Abstract We have measured excesses of Pd, Rh, Ru, REE, Co, Sr, and Y in a Peat column from the Northern Peat bog of the 1908 Tunguska explosion site. Earlier, in this Peat column the presence of an Ir anomaly at the event Layers (30– 45 cm depth) has been found (Planet Space Sci. 48 (1998) 179). In these Layers, Pd, Rh, Ru, Co, Sr, and Y show pronounced anomalies of a factor 4–7 higher than the background value. In the event Layers there are also good correlations between the siderophile platinum group elements (Pd, Rh, Ru) and Co, indicators of cosmic material, which imply they might have the same source, i.e. the Tunguska explosive body. The patterns of CI-chondrite-normalized REE in the event Layers are much flatter than those in normal Peat Layers and different from those in the nearby traps. Furthermore, in these Layers the patterns of CI-chondrite-normalized PGEs and the element ratios (e.g. C/Pd, C/Rh, and between some siderophile elements) give evidence that the Tunguska explosive body was more likely a comet, although we cannot exclude the possibility that the impactor could be a carbonaceous asteroid. We have estimated the total mass of a solid component of the explosive body up to 103–106 tons.