Provenance of detrital sediments in Southern Andaman Sea since the last glaciation ...

• Main Author: Suratta Bunsomboonsakul
• Format: Dataset
• Language: unknown
• Published: Chulalongkorn University 2016
• Subjects: Oceanography; FOS Earth and related environmental sciences; Marine sediments > Andaman Sea; สมุทรศาสตร์; การตกตะกอนชายฝั่ง > ทะเลอันดามัน; Indian; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.14457/cu.the.2016.213; http://doi.nrct.go.th/?page=resolve_doi&resolve_doi=10.14457/CU.the.2016.213

The Andaman Sea is a semi-enclosed system which offers such a good case for studying the source to sink transport process of sediment. This work has main objectives which are: 1) to reveal clay mineral assemblages in surface sediments, and understand present transport process; 2) to understand the clay mineral variation since the last glaciation; 3) to reconstruct the Indian monsoon evolution; 4) to explain the possible mechanism of marine environmental variation driven by climate change since the last glaciation. The materials used in this study include 61 surface sediment samples which were analyzed for clay minerals in order to characterize modern ocean transportation process, and 4 sediment cores (ADM 2, ADM 6, MASS-III-07, and MASS-III-10) in the southern Andaman Sea which were analyzed for clay minerals and element geochemistry, to reconstruct paleoenvironment over the last glaciation. The AMS-14C and oxygen isotopes (δ18O) dating from planktonic foraminifera were measured to establish a chronology of ...