Barium in sediments and pore waters of several ODP Leg 170 and Leg 205 sites
Cobertura |
MEDIAN LATITUDE: 9.650613 * MEDIAN LONGITUDE: -86.189533 * SOUTH-BOUND LATITUDE: 9.639700 * WEST-BOUND LONGITUDE: -86.200000 * NORTH-BOUND LATITUDE: 9.661650 * EAST-BOUND LONGITUDE: -86.178900 * DATE/TIME START: 1996-11-02T03:30:00 * DATE/TIME END: 2002-10-11T09:45:00 |
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Data(s) |
01/02/2006
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Resumo |
Barium concentrations were measured on 17 pore fluid and 13 sediment samples from Sites 1253 and 1254 drilled offshore Costa Rica during Ocean Drilling Program (ODP) Leg 205. An additional 83 pore fluid and 29 sediment samples were analyzed for Ba concentrations from Sites 1039 and 1040 drilled during ODP Leg 170 offshore Costa Rica. Sites 1039/1253 and 1040/1254 are part of a transect across the Middle America Trench offshore Nicoya Peninsula. The entire incoming sediment section is being underthrust beneath the margin, providing an ideal setting to examine Ba cycling in the shallow levels of the subduction zone. Results from these analyses indicate that a significant amount of Ba is liberated from the mineral barite (BaSO4) in the uppermost hemipelagic sediments arcward of the trench. The shallow distillation of Ba may impact the amount of sedimentary Ba reaching the deeper subduction zone. |
Formato |
application/zip, 2 datasets |
Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.775196 doi:10.1594/PANGAEA.775196 |
Idioma(s) |
en |
Publicador |
PANGAEA |
Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
Fonte |
Supplement to: Solomon, Evan A; Kastner, Miriam; Robertson, Gretchen (2006): Barium cycling at the Costa Rica convergent margin. In: Morris, JD; Villinger, HW; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 205, 1-54, doi:10.2973/odp.proc.sr.205.210.2006 |
Palavras-Chave | #170-1039B; 170-1039C; 170-1040C; 205-1253A; 205-1254A; Ba; Barium; Costa Rica subduction complex, North Pacific Ocean; Depth; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Event; ICP-MS, Thermo Finnigan, Element 2; ICP-OES, Inductively coupled plasma - optical emission spectrometry; Joides Resolution; Label; Leg170; Leg205; Lithology; Lithology/composition/facies; mbsf; North Pacific Ocean; Ocean Drilling Program; ODP; ODP sample designation; Sample code/label |
Tipo |
Dataset |