Element compositions and provenance implication of surface sediments in offshore areas of the eastern Shandong Peninsula in China

DOU Yanguang; LI Jun; YANG Shouye

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DOU Yanguang, LI Jun, YANG Shouye. Element compositions and provenance implication of surface sediments in offshore areas of the eastern Shandong Peninsula in China[J]. Haiyang Xuebao, 2012, 34(1): 109-119.

Citation:

DOU Yanguang, LI Jun, YANG Shouye. Element compositions and provenance implication of surface sediments in offshore areas of the eastern Shandong Peninsula in China[J]. Haiyang Xuebao, 2012, 34(1): 109-119.

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Element compositions and provenance implication of surface sediments in offshore areas of the eastern Shandong Peninsula in China

1.
Key Laboratory of Ministry of Land and Naturel Resoures for Marine Hydrocarbon Resources and Environmental Geology Oingdao Institte of Marine Geology, Ministry of Land and Natural Resources, Qingdao 266071, China;Qingdao Institute of Marine Geology, Ministry of Land and Natural Resources, Qingdao 266071, China
2.
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

Received Date: 2010-12-10
Rev Recd Date: 2011-07-18

Abstract

Abstract

The contents of main and trace elements, total organic carbon (TOC) and carbonate are reported in sediments recovered from the offshore areas of the Shandong Peninsula.The aims are to understand the provenance and diffusion pattern of the sediments by the element composition characteristics.The results indicate that the content of some elements, such as Al, K, Na, Mg, Fe, Ca, Cu and Zn is higher in the offshore areas than in the upper continental shelf (UCC), and the content of Mn, Co, Ni, Cr as well as rare earth element (REE) is lower.Si and Ti in the offshore areas are same as UCC.HREE fractionates obviously in sand and the value of c_n(La)/c_n(Yb) is close to that of Korean rivers.The normalized curve of other sediments is same as that in the Huanghe River and different from that in the Changjiang River.The element composition mainly is controlled by source rocks and influenced by granularity.Furthermore, Fe-Mn oxides and biogenous carbonate also exert some influence on the element composition.The result of provenance discrimination exhibits that the sediments offshore and in the southeastern area are mainly derived from Huanghe River.Where the transportation pattern of sediment is controlled by Shandong Peninsula coastal current and tide.The coarse sediments in the northeast mainly are the relict sands and their element component is same as that of the Korean Peninsula and the Yalu River.This means that the coarse sediments in the northeast may be supplied by the Korean peninsula or the Yalu River in the last glacial when the sea level was low.
- surface sediments,
- element tracing,
- provenance discrimination,
- eastern Shandong Peninsula

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References(42)

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