Data report; Grain size analysis of Bengal Fan sediments at Sites U1450 and U1451, IODP Expedition 354

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doi: 10.14379/iodp.proc.354.202.2018
Author(s): Adhikari, Swostik Kumar; Sakai, Tetsuya; Yoshida, Kohki
International Ocean Discovery Program, Expedition 354 Scientists, College Station, TX
Author Affiliation(s): Primary:
Tribhuvan University, Department of Geology, Kathmandu, Nepal
Other:
Shimane University, Japan
Shinshu University, Japan
Volume Title: Proceedings of the International Ocean Discovery Program; Expedition 354 of the riserless drilling platform, Singapore to Colombo, Sri Lanka; Sites U1449-U1455, 29 January - 31 March 2015
Volume Author(s): France-Lanord, Christian; Spiess, Volkhard; Klaus, Adam; Schwenk, Tilmann; Adhikari, Rishi R.; Adhikari, Swostik Kumar; Bahk, Jang-Jun; Baxter, Alan T.; Cruz, Jarrett W.; Das, Supriyo Kumar; Dekens, Petra; Duleba, Wania; Fox, Lyndsey R.; Galy, Albert; Galy, Valier; Ge Junyi; Gleason, James D.; Gyawali, Babu R.; Huyghe, Pascale; Jia Guodong; Lantzsch, Hendrik; Manoj, M. C.; Martin, Yasmina Martos; Meynadier, Laure; Najman, Yani M. R.; Nakajima, Arata; Ponton, Camilo; Reilly, Brendan T.; Rogers, Kimberly G.; Savian, Jairo F.; Selkin, Peter A.; Weber, Michael E.; Williams, Trevor; Yoshida, Koki
Source: Proceedings of the International Ocean Discovery Program; Expedition 354 of the riserless drilling platform, Singapore to Colombo, Sri Lanka; Sites U1449-U1455, 29 January - 31 March 2015, Christian France-Lanord, Volkhard Spiess, Adam Klaus, Tilmann Schwenk, Rishi R. Adhikari, Swostik Kumar Adhikari, Jang-Jun Bahk, Alan T. Baxter, Jarrett W. Cruz, Supriyo Kumar Das, Petra Dekens, Wania Duleba, Lyndsey R. Fox, Albert Galy, Valier Galy, Ge Junyi, James D. Gleason, Babu R. Gyawali, Pascale Huyghe, Jia Guodong, Hendrik Lantzsch, M. C. Manoj, Yasmina Martos Martin, Laure Meynadier, Yani M. R. Najman, Arata Nakajima, Camilo Ponton, Brendan T. Reilly, Kimberly G. Rogers, Jairo F. Savian, Peter A. Selkin, Michael E. Weber, Trevor Williams and Koki Yoshida; International Ocean Discovery Program, Expedition 354 Scientists, College Station, TX. Proceedings of the International Ocean Discovery Program, Expedition Reports, Vol.354, 12p. Publisher: International Ocean Discovery Program, Washington, DC, United States. ISSN: 2377-3189 CODEN: IDSDA6
Note: In English. 18 refs.; illus., incl. 4 tables
Summary: Grain size distributions of 311 sediment samples from Sites U1450 and U1451 of International Ocean Discovery Program (IODP) Expedition 354 were determined using laser diffraction. Most of the samples were from turbidites, but some hemipelagic beds were also examined. The mean grain size values show that silt sized particles are the dominant textural class, whereas the grain size values range from clay to coarse-grained sand. An overall upward change in mean grain size value reveals a slight coarsening upward trend. However, other parameters such as standard deviation, skewness, and kurtosis show no systematic relationship with depth in the holes. The analyzed samples cover the age range from recent to early Miocene. Shepard textural classification plots show the sediments are mostly sandy silts, silty sands, and clayey silts with a few silts and sands also present. Frequency curve plots of samples from individual turbidite beds show inversely graded beds are most common at Site U1450, whereas thicker massive beds are dominant at Site U1451.
Year of Publication: 2018
Research Program: IODP Integrated Ocean Drilling Program
IODP2 International Ocean Discovery Program
Key Words: 06 Petrology, Sedimentary; Bay of Bengal; Bengal Fan; Boreholes; Cenozoic; Clastic sediments; Cores; Expedition 354; Grain size; IODP Site U1450; IODP Site U1451; Indian Ocean; International Ocean Discovery Program; Kurtosis; Lithostratigraphy; Marine sediments; Mud; Neogene; Quaternary; Sediments; Skewness; Sorting; Statistical analysis; Tertiary; Turbidite
Coordinates: N080025 N080025 E0874016 E0874015
N080025 N080025 E0884430 E0884428
Record ID: 2018084147
Copyright Information: GeoRef, Copyright 2018 American Geosciences Institute.