Occurrence and distribution of hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers (OH-GDGTs) in the Han River system, South Korea
- Authors
- Kang, Sujin; Shin, Kyoung-Hoon; Kim, Jung-Hyun
- Issue Date
- Sep-2017
- Publisher
- Springer International Publishing AG
- Keywords
- Hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers (OH-GDGTs); Sea surface temperature (SST); Han river; Yellow Sea
- Citation
- Acta Geochimica, v.36, no.3, pp.367 - 369
- Indexed
- SCIE
SCOPUS
- Journal Title
- Acta Geochimica
- Volume
- 36
- Number
- 3
- Start Page
- 367
- End Page
- 369
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/9041
- DOI
- 10.1007/s11631-017-0165-3
- ISSN
- 2096-0956
- Abstract
- We investigated the occurrence and distribution of terrestrial-derived hydroxylated isoprenoid glycerol dialkyl glycerol tetraethers (OH-GDGTs) in the Han River system and their potential impact on the application of the ring index of OH-GDGTs (RI-OH) as a sea surface temperature (SST) proxy in the eastern Yellow Sea. Thereby, we analyzed various samples collected along the Han River and from its surrounding areas (South Korea, n = 34). The OH-GDGTs were found in all samples investigated. OH-GDGT-0 was the dominant OH-GDGT component in the estuary and marine samples while OH-GDGT-2 was generally dominant in the soils, the lake sediments and the river suspended particulate matter (SPM). Our results thus suggests a possible warm bias of the RI-OH-derived summer SSTs in the coastal zone to which a large amount of terrestrial organic matter is being supplied. Further studies are necessary to better assess the applicability of the RI-OH proxy in the eastern Yellow Sea.
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