Climate-tectonic interactions recorded in the Arabian Sea; results from IODP Expedition 355

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doi: 10.1130/abs/2017SC-289544
Author(s): Zhou, Peng; Clift, Peter D.; Blusztajn, Jerzy S.; Pandey, Dhananjai K.; Stockli, Daniel F.
Author Affiliation(s): Primary:
Louisiana State University, Department of Geology and Geophysics, Baton Rouge, LA, United States
Other:
Woods Hole Oceanographic Institution, United States
National Centre for Antarctic and Ocean Research, India
University of Texas at Austin, United States
Volume Title: Geological Society of America, South-Central Section, 51st annual meeting
Source: Abstracts with Programs - Geological Society of America, 49(1); Geological Society of America, South-Central Section, 51st annual meeting, San Antonio, TX, March 13-14, 2017. Publisher: Geological Society of America (GSA), Boulder, CO, United States. ISSN: 0016-7592 CODEN: GAAPBC
Note: In English
Summary: The Asian monsoon is one of the most intense climatic phenomena on Earth. As part of the Asian monsoon, the long-term development of Indian (southwest) summer monsoon has been linked to the growth of high topography in South and Central Asia. We analyzed sediment samples from International Ocean Discovery Program (IODP) Expedition 355 sites U1456 and U1457 in the eastern Arabian Sea which offers a unique opportunity to investigate tectonic-climatic interactions and the net impact of these processes on weathering and erosion of the western Himalaya. Although there are some hiatuses or condensed section (∼1.8-2.2 and 3.6-5.6 Ma), both sites are penetrated ∼10 Ma (late Miocene) and younger section. According to U-Pb single grain zircon dating, Sr and Nd isotope data, we could identify the sediment provenance. Furthermore, with the analysis of the major element compositions and clay mineralogy, we could reconstruct the record of chemical weathering, physical erosion intensity and evolving provenance since 10 Ma. With the good age control and decent core recovery, We could reconstruct the changing patterns and rates of erosion in the mountains have changed since around 11 million years ago and model high-resolution variations in erosion, weathering, environment and climate.
Year of Publication: 2017
Research Program: IODP Integrated Ocean Drilling Program
IODP2 International Ocean Discovery Program
Key Words: 02 Geochemistry; 03 Geochronology; 12 Stratigraphy, Historical Geology and Paleoecology; Absolute age; Alkaline earth metals; Arabian Sea; Cenozoic; Erosion; Expedition 355; IODP Site U1456; IODP Site U1457; Indian Ocean; International Ocean Discovery Program; Isotope ratios; Isotopes; Metals; Monsoons; Neodymium; Neogene; Nesosilicates; Orthosilicates; Paleoclimatology; Plate tectonics; Quaternary; Rare earths; Silicates; Sr-87/Sr-86; Stable isotopes; Strontium; Tertiary; U/Pb; Zircon; Zircon group
Coordinates: N170957 N170957 E0675549 E0675548
N163717 N163718 E0685021 E0685020
Record ID: 2017096364
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States