การใช้ขนาดเม็ดตะกอนและปริมาณตะกั่วและสังกะสีเพื่อระบุชั้นตะกอนดินที่มาจากการเกิดเหตุการณ์สึนามิปี พ.ศ. 2547 (ค.ศ. 2004) จังหวัดภูเก็ต ในพื้นที่รองรับน้ำทิ้งคลองบางใหญ่ อ่าวภูเก็ต

Main Article Content

ธงชัย สุธีรศักดิ์
เพ็ญศิริ เอกจิตต์

Abstract

Abstract


Two sediment cores for the introduction study collected from Bang-Yai estuary, Phuket bay, Phuket province, Thailand were used to assess the levels of metal pollution (Pb and Zn) in sediment samples. Two grain-size fractions (>150 µm and <150 µm) of the sediment samples and heavy metal concentrations in 2003 were used to identify the layer of sediment during the Tsunami in 2547 B.E. (2004 C.E.). The results showed that the sediment layers in Core A are disturbed by the tsunami deposition at 24-26 cm depth, whereas the redistribution of the sediment was detected at a depth of 34-35 cm in Core B. In addition, it was found that the sedimentation rate after the tsunami event in Core A and B are 2.17 and 2.87 cm yr-1, respectively. In this study, the disturbed layers of the sediment samples by Tsunami deposition were attributed to the uniform trend of vertical sediment texture composition (grain-size >150 µm and <150 µm) from a depth of 9 cm. toward the end of Core A and from 7.5 cm. toward the end of Core B, respectively. 


Keywords: heavy metal; Tsunami; accumulation; sediment

Article Details

Section
Physical Sciences
Author Biographies

ธงชัย สุธีรศักดิ์

คณะเทคโนโลยีและสิ่งแวดล้อม มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตภูเก็ต ถนนวิชิตสงคราม ตำบลกะทู้ อำเภอกะทู้ จังหวัดภูเก็ต 83120

เพ็ญศิริ เอกจิตต์

คณะเทคโนโลยีและสิ่งแวดล้อม มหาวิทยาลัยสงขลานครินทร์ วิทยาเขตภูเก็ต ถนนวิชิตสงคราม ตำบลกะทู้ อำเภอกะทู้ จังหวัดภูเก็ต 83120

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