Consulta: creatorFacets:"Hyeong, Kiseong"
Registros recuperados: 2
Data/hora: 02/06/2024 16:35:03

Climatic evolution of the central equatorial Pacific since the Last Glacial Maximum
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Seo, Inah; Lee, Yuri; Lee, Yong Il; Yoo, Chan Min; Hyeong, Kiseong.
This paper investigates paleoceanographic changes at a central equatorial Pacific site (6 degrees 40N, 177 degrees 28W) since the last glacial maximum using planktic foraminifera assemblages, together with the oxygen isotope (O-18) and Mg/Ca compositions of three species (Globigerinoides sacculifer, Pulleniatina obliquiloculata, and Globorotalia tumida) that dwell in the mixed layer, upper thermocline, and lower thermocline, respectively. While the Mg/Ca-derived temperatures of the mixed layer and lower thermocline varied within a narrow range from 18 ka onward, the upper thermocline temperature increased by as much as 3 degrees C during the last deglaciation (18-12 ka) with a simultaneous decrease of O-18. These changes are best explained by an enhanced...
Tipo: Text
Palavras-chave: Planktic foraminifera; Geochemistry; Micropaleontology; Paleoceanography; Intertropical Convergence Zone; Last deglaciation.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00496/60721/65271.pdf

Reply to Comment by Xu et al. on "Sr-Nd isotope composition and clay mineral assemblages in eolian dust from the central Philippine Sea over the last 600kyr: Implications for the transport mechanism of Asian dust" by Seo et al.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Seo, Inah; Il Lee, Yong; Yoo, Chan Min; Kim, Hyung Jeek; Hyeong, Kiseong.
Against Xu et al. (2016), who argued that East Asian Desert (EAD) dust that traveled on East Asian Winter Monsoon winds dominates over Central Asian Desert (CAD) dust in the Philippine Sea with presentation of additional data, we reconfirm Seo et al. 's (2014) conclusion that CAD dust carried on the Prevailing Westerlies and Trade Winds dominates over EAD dust in overall dust budget of the central Philippine Sea. The relative contribution of dust from EADs and CADs using clay mineral composition should be evaluated with elimination of mineralogical contribution from the volcanic end-member which is enriched in kaolinite and overestimate the contribution of EAD dust.
Tipo: Text
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00421/53203/54942.pdf