Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Kwangchul Jang"'
Autor:
Dahae Kim, Jung-Hyun Kim, Youngkyu Ahn, Kwangchul Jang, Ji Young Jung, Minji Bae, Seung-Il Nam
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract Svalbard fjords are recognized as hotspots for organic carbon (OC) burial and storage due to their high sedimentation rates, which effectively trap terrestrial sediments and inhibit extensive OC remineralization. In this study, we investigat
Externí odkaz:
https://doaj.org/article/e85d9f7327274111a15fd98982a06c80
Autor:
Ji-Hoon Kim, Myong-Ho Park, Jong-Sik Ryu, Kwangchul Jang, Jiyoung Choi, Sanghee Park, Yungoo Song, Bo-Yeon Yi, Young Ji Joo, Tae-Hoon Kim, Jin Hur
Publikováno v:
Frontiers in Marine Science, Vol 10 (2024)
We investigated the geochemistry of gas, pore fluid, and methane-derived authigenic carbonate (MDAC) from four sites in the southern Ulleung Basin, South Korea. In contrast to Sites 16GH-P1 and 16GH-P5, Sites 16GH-P3, and 16GH-P4 are characterized by
Externí odkaz:
https://doaj.org/article/ddbc155a34174c2aa3537beed1dc0ff0
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-10 (2023)
Freshening and oxygen depletion of the polar deep waters of the Amerasian Basin during the last glacial periods probably resulted in significant carbon burial, according to geochemical analyses of inorganic authigenic carbonates in Arctic Ocean sedim
Externí odkaz:
https://doaj.org/article/765827cef98841a99dad17cdb1b671be
Autor:
Dukki Han, Tim Richter-Heitmann, Ji-Hoon Kim, Michael W. Friedrich, Xiuran Yin, Marcus Elvert, Jong-Sik Ryu, Kwangchul Jang, Seung-Il Nam
Publikováno v:
Frontiers in Microbiology, Vol 14 (2023)
The sea-level rise during the Holocene (11–0 ky BP) and its resulting sedimentation and biogeochemical processes may control microbial life in Arctic sediments. To gain further insight into this interaction, we investigated a sediment core (up to 1
Externí odkaz:
https://doaj.org/article/c0f46001de8e4ad0841c974fef43055c
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Externí odkaz:
https://doaj.org/article/b8544c1926a04588824a46aa743bc851
Autor:
Young Jin Joe, Kwangchul Jang, Matthias Forwick, Jan Sverre Laberg, Gee Soo Kong, Moo-Hee Kang, Seok-Hoon Yoon, Seung-Il Nam
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Geophysical and lithological data provide crucial information for the understanding of glacial history in Arctic Svalbard. In this study, we reconstructed the glacier-induced depositional environments of Little Storfjorden and its tributary, Hambergb
Externí odkaz:
https://doaj.org/article/3ca8ce24824247bdadd7be92d15abb27
Autor:
Ji-Hoon Kim, Myong-Ho Park, Dong-Hun Lee, Hirotsugu Minami, Young-Keun Jin, Akihiro Hachikubo, Jin Hur, Jong-Sik Ryu, Moo-Hee Kang, Kwangchul Jang, Masato Kida, Yongwon Seo, Meilian Chen, Jong Kuk Hong, Yungoo Song, Sanghee Park
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
We investigated the pore fluid and methane-derived authigenic carbonate (MDAC) chemistry from the ARAON Mounds in the Chukchi Sea to reveal how methane (CH4) seepage impacts their compositional and isotopic properties. During the ARA07C and ARA09C Ex
Externí odkaz:
https://doaj.org/article/4d1d86c5a6174bd1aedf37e401cb854a
Autor:
Ji‐Hoon Kim, Wei‐Li Hong, Marta E. Torres, Jong‐Sik Ryu, Moo‐Hee Kang, Dukki Han, Seung‐Il Nam, Jin Hur, Dong‐Chan Koh, Frank Niessen, Dong‐Hun Lee, Kwangchul Jang, James William Buchanan Rae, Meilian Chen
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 8, Pp n/a-n/a (2021)
Abstract The response of Arctic Ocean biogeochemistry to subsurface flow driven by permafrost thaw is poorly understood. We present dissolved chloride and water isotopic data from the Chukchi Sea Shelf sediments that reveal the presence of a meteoric
Externí odkaz:
https://doaj.org/article/6860096e25734091bd3e9a4064c7d606
Svalbard fjords are hotspots of organic carbon (OC) burial because of their high sedimentation rates. To identify sedimentary OC sources in Arctic fjords, we investigated surface sediments collected from eight Svalbard fjords using bulk and molecular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd93083f1abfec203d297ddc96431e51
https://doi.org/10.5194/egusphere-egu23-10699
https://doi.org/10.5194/egusphere-egu23-10699
Autor:
Kwangchul Jang, Germain Bayon, Christoph Vogt, Matthias Forwick, Youngkyu Ahn, Jung-Hyun Kim, Seung-Il Nam
Publikováno v:
Earth And Planetary Science Letters (0012-821X) (Elsevier BV), 2023-04, Vol. 607, P. 118054 (12p.)
The recent acceleration of ice-sheet loss with its direct impact on sea-level rise and coastal ecosystems is of major environmental and societal concern. However, the effect of atmospheric temperature increases on long-term glacier retreat remains po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea1a2979002a9ec2856ae545327cfc40
https://hdl.handle.net/10037/28672
https://hdl.handle.net/10037/28672