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Modern (<100 years) sedimentation in the Taiwan Strait: Rates and source-to-sink pathways elucidated from radionuclides and particle size distribution
A large number of sediment cores collected during 2005–2010 from the Taiwan Strait were analyzed for radionuclides ( 210Pb, 137Cs and 7Be) to elucidate sedimentation dynamics in this all-important gateway linking two largest marginal seas in the western Pacific (namely, the South China Sea and the E...
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| Published in: | Continental shelf research 2011-01, Vol.31 (1), p.47-63 |
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| Main Authors: | , , , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-a3762-b59a5d1459ba983e396ffddcda3c875911f9718619549db29501a56b2631ec473 |
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| cites | cdi_FETCH-LOGICAL-a3762-b59a5d1459ba983e396ffddcda3c875911f9718619549db29501a56b2631ec473 |
| container_end_page | 63 |
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| container_start_page | 47 |
| container_title | Continental shelf research |
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| creator | Huh, Chih-An Chen, Weifang Hsu, Feng-Hsin Su, Chih-Chieh Chiu, Jui-Kun Lin, Saulwood Liu, Char-Shine Huang, Bor-Jiun |
| description | A large number of sediment cores collected during 2005–2010 from the Taiwan Strait were analyzed for radionuclides (
210Pb,
137Cs and
7Be) to elucidate sedimentation dynamics in this all-important gateway linking two largest marginal seas in the western Pacific (namely, the South China Sea and the East China Sea). Apparent sediment accumulation rates derived from
210Pb and
137Cs profiles vary from 2
cm/yr, averaging ∼0.4
cm/yr and showing a spatial pattern closely related to hydrodynamics and sediment source-to-sink pathways. Spatial-temporal variation of
7Be activity in surface sediments off Taiwan’s west coast indicates episodic deposition of flood layers and their mobility from river estuaries toward the north. In conjunction with particle size distribution in surface sediments and the structure of sediment strata revealed by sub-bottom echo images; the radionuclide data can be used to outline three different sediment source-to-sink dispersal systems. Based on sediment loads of surrounding rivers and the distribution of sediment accumulation rates, lateral transport is required to account for the budget and size distribution of sediments in the strait.
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| doi_str_mv | 10.1016/j.csr.2010.11.002 |
| format | article |
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210Pb,
137Cs and
7Be) to elucidate sedimentation dynamics in this all-important gateway linking two largest marginal seas in the western Pacific (namely, the South China Sea and the East China Sea). Apparent sediment accumulation rates derived from
210Pb and
137Cs profiles vary from <0.1 to >2
cm/yr, averaging ∼0.4
cm/yr and showing a spatial pattern closely related to hydrodynamics and sediment source-to-sink pathways. Spatial-temporal variation of
7Be activity in surface sediments off Taiwan’s west coast indicates episodic deposition of flood layers and their mobility from river estuaries toward the north. In conjunction with particle size distribution in surface sediments and the structure of sediment strata revealed by sub-bottom echo images; the radionuclide data can be used to outline three different sediment source-to-sink dispersal systems. Based on sediment loads of surrounding rivers and the distribution of sediment accumulation rates, lateral transport is required to account for the budget and size distribution of sediments in the strait.
►Modern (<100 years) sedimentation in the Taiwan Strait elucidated from radionuclides (
7Be,
234Th,
210Pb and
137Cs) is a key to the sediment strata revealed by sub-bottom echo images. ►Transport pathways, accumulation rates and budget of sediments in the Taiwan Strait are derived from temporal–spatial distribution of radionuclides (
7Be,
234Th,
210Pb and
137Cs) in a large number of sediment cores. ► Different shapes of sedimentary
137Cs profiles in two sides of the Taiwan Strait reflect rapid transport by mountainous rivers in Taiwan vs. long transit time of fluvial sediments from large drainage basins in China. ►In the Taiwan Strait, higher sediment accumulation rates correspond to small particle sizes found in areas with low tidal and current flows.</description><identifier>ISSN: 0278-4343</identifier><identifier>EISSN: 1873-6955</identifier><identifier>DOI: 10.1016/j.csr.2010.11.002</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>137Cs ; 210Pb ; 7Be ; Brackish ; Budgeting ; China ; Pathways ; Rivers ; Sediment accumulation rate ; Sedimentation ; Sediments ; Source-to-sink transport ; Straits ; Taiwan Strait</subject><ispartof>Continental shelf research, 2011-01, Vol.31 (1), p.47-63</ispartof><rights>2010 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a3762-b59a5d1459ba983e396ffddcda3c875911f9718619549db29501a56b2631ec473</citedby><cites>FETCH-LOGICAL-a3762-b59a5d1459ba983e396ffddcda3c875911f9718619549db29501a56b2631ec473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Huh, Chih-An</creatorcontrib><creatorcontrib>Chen, Weifang</creatorcontrib><creatorcontrib>Hsu, Feng-Hsin</creatorcontrib><creatorcontrib>Su, Chih-Chieh</creatorcontrib><creatorcontrib>Chiu, Jui-Kun</creatorcontrib><creatorcontrib>Lin, Saulwood</creatorcontrib><creatorcontrib>Liu, Char-Shine</creatorcontrib><creatorcontrib>Huang, Bor-Jiun</creatorcontrib><title>Modern (<100 years) sedimentation in the Taiwan Strait: Rates and source-to-sink pathways elucidated from radionuclides and particle size distribution</title><title>Continental shelf research</title><description>A large number of sediment cores collected during 2005–2010 from the Taiwan Strait were analyzed for radionuclides (
210Pb,
137Cs and
7Be) to elucidate sedimentation dynamics in this all-important gateway linking two largest marginal seas in the western Pacific (namely, the South China Sea and the East China Sea). Apparent sediment accumulation rates derived from
210Pb and
137Cs profiles vary from <0.1 to >2
cm/yr, averaging ∼0.4
cm/yr and showing a spatial pattern closely related to hydrodynamics and sediment source-to-sink pathways. Spatial-temporal variation of
7Be activity in surface sediments off Taiwan’s west coast indicates episodic deposition of flood layers and their mobility from river estuaries toward the north. In conjunction with particle size distribution in surface sediments and the structure of sediment strata revealed by sub-bottom echo images; the radionuclide data can be used to outline three different sediment source-to-sink dispersal systems. Based on sediment loads of surrounding rivers and the distribution of sediment accumulation rates, lateral transport is required to account for the budget and size distribution of sediments in the strait.
►Modern (<100 years) sedimentation in the Taiwan Strait elucidated from radionuclides (
7Be,
234Th,
210Pb and
137Cs) is a key to the sediment strata revealed by sub-bottom echo images. ►Transport pathways, accumulation rates and budget of sediments in the Taiwan Strait are derived from temporal–spatial distribution of radionuclides (
7Be,
234Th,
210Pb and
137Cs) in a large number of sediment cores. ► Different shapes of sedimentary
137Cs profiles in two sides of the Taiwan Strait reflect rapid transport by mountainous rivers in Taiwan vs. long transit time of fluvial sediments from large drainage basins in China. ►In the Taiwan Strait, higher sediment accumulation rates correspond to small particle sizes found in areas with low tidal and current flows.</description><subject>137Cs</subject><subject>210Pb</subject><subject>7Be</subject><subject>Brackish</subject><subject>Budgeting</subject><subject>China</subject><subject>Pathways</subject><subject>Rivers</subject><subject>Sediment accumulation rate</subject><subject>Sedimentation</subject><subject>Sediments</subject><subject>Source-to-sink transport</subject><subject>Straits</subject><subject>Taiwan Strait</subject><issn>0278-4343</issn><issn>1873-6955</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kc-O1DAMhyMEEsPCA3DLDTh0iJsmbYDLasU_aRESLOfITVxthk4yJCmr4UF4XjqaPXOyLP0-W_bH2HMQWxCgX--2ruRtK049bIVoH7ANDL1stFHqIduIth-aTnbyMXtSyk4I0WvTb9jfL8lTjvzlOxCCHwlzecUL-bCnWLGGFHmIvN4Sv8Fwh5F_rxlDfcO_YaXCMXpe0pIdNTU1JcSf_ID19g6PhdO8uODXmOdTTnue0a_jFjcHf08eMNfgZuIl_CHuQ6k5jMtp6VP2aMK50LP7esF-fHh_c_Wpuf768fPV5XWDstdtMyqDykOnzIhmkCSNnibvnUfphl4ZgMn0MGgwqjN-bI0SgEqPrZZAruvlBXtxnnvI6ddCpdp9KI7mGSOlpdhBCzkIULAm4Zx0OZWSabKHHPaYjxaEPSmwO7sqsCcFFsCuClbm7Zmh9YTfgbItLlB063szuWp9Cv-h_wGCopCL</recordid><startdate>20110115</startdate><enddate>20110115</enddate><creator>Huh, Chih-An</creator><creator>Chen, Weifang</creator><creator>Hsu, Feng-Hsin</creator><creator>Su, Chih-Chieh</creator><creator>Chiu, Jui-Kun</creator><creator>Lin, Saulwood</creator><creator>Liu, Char-Shine</creator><creator>Huang, Bor-Jiun</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20110115</creationdate><title>Modern (<100 years) sedimentation in the Taiwan Strait: Rates and source-to-sink pathways elucidated from radionuclides and particle size distribution</title><author>Huh, Chih-An ; Chen, Weifang ; Hsu, Feng-Hsin ; Su, Chih-Chieh ; Chiu, Jui-Kun ; Lin, Saulwood ; Liu, Char-Shine ; Huang, Bor-Jiun</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3762-b59a5d1459ba983e396ffddcda3c875911f9718619549db29501a56b2631ec473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>137Cs</topic><topic>210Pb</topic><topic>7Be</topic><topic>Brackish</topic><topic>Budgeting</topic><topic>China</topic><topic>Pathways</topic><topic>Rivers</topic><topic>Sediment accumulation rate</topic><topic>Sedimentation</topic><topic>Sediments</topic><topic>Source-to-sink transport</topic><topic>Straits</topic><topic>Taiwan Strait</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Huh, Chih-An</creatorcontrib><creatorcontrib>Chen, Weifang</creatorcontrib><creatorcontrib>Hsu, Feng-Hsin</creatorcontrib><creatorcontrib>Su, Chih-Chieh</creatorcontrib><creatorcontrib>Chiu, Jui-Kun</creatorcontrib><creatorcontrib>Lin, Saulwood</creatorcontrib><creatorcontrib>Liu, Char-Shine</creatorcontrib><creatorcontrib>Huang, Bor-Jiun</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Continental shelf research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huh, Chih-An</au><au>Chen, Weifang</au><au>Hsu, Feng-Hsin</au><au>Su, Chih-Chieh</au><au>Chiu, Jui-Kun</au><au>Lin, Saulwood</au><au>Liu, Char-Shine</au><au>Huang, Bor-Jiun</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Modern (<100 years) sedimentation in the Taiwan Strait: Rates and source-to-sink pathways elucidated from radionuclides and particle size distribution</atitle><jtitle>Continental shelf research</jtitle><date>2011-01-15</date><risdate>2011</risdate><volume>31</volume><issue>1</issue><spage>47</spage><epage>63</epage><pages>47-63</pages><issn>0278-4343</issn><eissn>1873-6955</eissn><abstract>A large number of sediment cores collected during 2005–2010 from the Taiwan Strait were analyzed for radionuclides (
210Pb,
137Cs and
7Be) to elucidate sedimentation dynamics in this all-important gateway linking two largest marginal seas in the western Pacific (namely, the South China Sea and the East China Sea). Apparent sediment accumulation rates derived from
210Pb and
137Cs profiles vary from <0.1 to >2
cm/yr, averaging ∼0.4
cm/yr and showing a spatial pattern closely related to hydrodynamics and sediment source-to-sink pathways. Spatial-temporal variation of
7Be activity in surface sediments off Taiwan’s west coast indicates episodic deposition of flood layers and their mobility from river estuaries toward the north. In conjunction with particle size distribution in surface sediments and the structure of sediment strata revealed by sub-bottom echo images; the radionuclide data can be used to outline three different sediment source-to-sink dispersal systems. Based on sediment loads of surrounding rivers and the distribution of sediment accumulation rates, lateral transport is required to account for the budget and size distribution of sediments in the strait.
►Modern (<100 years) sedimentation in the Taiwan Strait elucidated from radionuclides (
7Be,
234Th,
210Pb and
137Cs) is a key to the sediment strata revealed by sub-bottom echo images. ►Transport pathways, accumulation rates and budget of sediments in the Taiwan Strait are derived from temporal–spatial distribution of radionuclides (
7Be,
234Th,
210Pb and
137Cs) in a large number of sediment cores. ► Different shapes of sedimentary
137Cs profiles in two sides of the Taiwan Strait reflect rapid transport by mountainous rivers in Taiwan vs. long transit time of fluvial sediments from large drainage basins in China. ►In the Taiwan Strait, higher sediment accumulation rates correspond to small particle sizes found in areas with low tidal and current flows.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.csr.2010.11.002</doi><tpages>17</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
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| ispartof | Continental shelf research, 2011-01, Vol.31 (1), p.47-63 |
| issn | 0278-4343 1873-6955 |
| language | eng |
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| source | Elsevier |
| subjects | 137Cs 210Pb 7Be Brackish Budgeting China Pathways Rivers Sediment accumulation rate Sedimentation Sediments Source-to-sink transport Straits Taiwan Strait |
| title | Modern (<100 years) sedimentation in the Taiwan Strait: Rates and source-to-sink pathways elucidated from radionuclides and particle size distribution |
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