Data report; Strontium isotope analyses of pore fluids from the CRISP-A transect drilled during Expeditions 334 and 344

Online Access: Get full text
doi: 10.2204/iodp.proc.344.201.2015
Author(s): Ross, Nathan; Torres, Marta E.; Haley, Brian A.; Solomon, Evan A.; Kastner, Miriam
Integrated Ocean Drilling Program, Expedition 344 Scientists, College Station, TX
Author Affiliation(s): Primary:
Oregon State University, Corvallis, OR, United States
Other:
Japan Agency for Marine-Earth Science and Technology, Japan
Texas A&M University, United States
Lamont-Doherty Earth Observatory, United States
University of New England, Australia
University of Washington, United States
Indiana State University, United States
Université de Franche-Comté, France
Korea Institute of Geoscience and Mineral Resources, South Korea
University of Vigo, Spain
University of Tokyo, Japan
Kochi University, Japan
Helmholtz Centre for Ocean Research Kiel, Germany
Universidade de Sao Paulo, Brazil
Scripps Institution of Oceanography, United States
University of Graz, Austria
Nanjing University, China
Naval Research Laboratory, United States
Ohio State University, United States
Universidade Federal do Rio de Janeiro, Brazil
Université de Lausanne, Switzerland
University of Florida, United States
University of Southampton, United Kingdom
Kumamoto University, Japan
State Oceanic Administration, China
University of California, Santa Cruz, United States
Volume Title: Proceedings of the Integrated Ocean Drilling Program; Costa Rica seismogenesis project, Program A, Stage 2 (CRISP-A2); Expedition 344 of the riserless drilling platform Balboa, Panama, to Puntarenas, Costa Rica; Sites U1380, U1381, and U1412-U1414, 23 October-11 December 2012
Volume Author(s): Harris, Robert N.; Sakaguchi, Arito; Petronotis, Katerina; Malinverno, Alberto; Baxter, Alan T.; Berg, Richard; Burkett, Ashley; Charpentier, Delphine; Choi, Jiyoung; Ferreiro, Paula Diz; Hamahashi, Mari; Hashimoto, Yoshitaka; Heydolph, Ken; Jovane, Luigi; Kastner, Miriam; Kurz, Walter; Kutterolf, Steffen O.; Li Yongxiang; Martin, Kylara M.; Millan, Cristina; Nascimento, Débora B.; Saito, Saneatsu; Sandoval Gutierrez, Maria I.; Screaton, Elizabeth J.; Smith-Duque, Christopher E.; Solomon, Evan A.; Straub, Susanne M.; Tanikawa, Wataru; Torres, Marta E.; Uchimura, Hitomi; Vannucchi, Paola; Yamamoto, Yuzuru; Yan Quanshu; Zhao, Xixi
Source: Proceedings of the Integrated Ocean Drilling Program; Costa Rica seismogenesis project, Program A, Stage 2 (CRISP-A2); Expedition 344 of the riserless drilling platform Balboa, Panama, to Puntarenas, Costa Rica; Sites U1380, U1381, and U1412-U1414, 23 October-11 December 2012, Robert N. Harris, Arito Sakaguchi, Katerina Petronotis, Alberto Malinverno, Alan T. Baxter, Richard Berg, Ashley Burkett, Delphine Charpentier, Jiyoung Choi, Paula Diz Ferreiro, Mari Hamahashi, Yoshitaka Hashimoto, Ken Heydolph, Luigi Jovane, Miriam Kastner, Walter Kurz, Steffen O. Kutterolf, Li Yongxiang, Kylara M. Martin, Cristina Millan, Débora B. Nascimento, Saneatsu Saito, Maria I. Sandoval Gutierrez, Elizabeth J. Screaton, Christopher E. Smith-Duque, Evan A. Solomon, Susanne M. Straub, Wataru Tanikawa, Marta E. Torres, Hitomi Uchimura, Paola Vannucchi, Yuzuru Yamamoto, Yan Quanshu and Xixi Zhao; Integrated Ocean Drilling Program, Expedition 344 Scientists, College Station, TX. Proceedings of the International Ocean Discovery Program, Vol.344, 13p. Publisher: International Ocean Discovery Program, Washington, DC, United States. ISSN: 2377-3189 CODEN: IDSDA6
Note: In English. 28 refs.; illus., incl. 1 table, sketch map
Summary: We report on the Sr isotopic composition of pore fluids recovered during Integrated Ocean Drilling Program Costa Rica Seismogenesis Project Expeditions 334 and 344. Pore fluid samples were acidified and loaded directly onto columns containing EICHROM Sr-Spec resin, followed by analyses using a NU multicollector inductively coupled plasma-mass spectrometer at the Keck Collaboratory, Oregon State University. Sites drilled on the upper plate exhibited a decrease in the 87Sr/86Sr ratio to values as low as 0.70762 in the upper 200-300 m of the sediment column, suggesting the role of ash alteration. The unconformity between the slope sediment sequence and underlying framework rock, sampled at Sites U1378-U1380, is characterized by intense fracturing. The fluids sampled within the unconformity at these sites have 87Sr/86Sr ratios ranging from 0.70834 to 0.70844. Fluids sampled from the incoming plate sediment show evidence of ash alteration and carbonate diagenesis, but the deepest sediment here may also be modified by diffusion of fluids from the underlying oceanic crust. Intense carbonate recrystallization in the lower 66 m of Site U1414 results in Sr concentrations that are almost an order of magnitude higher than those measured at the base of Site U1381. The deepest pore fluid sample measured at both Sites U1381 and U1414 has a 87Sr/86Sr ratio of 0.7086. The strontium systematics in this margin, used in the context of other ongoing studies, may be used to unravel processes at this margin, such as carbonate diagenesis, ash alteration, fluid migration, and diffusive exchange with the underlying oceanic crust.
Year of Publication: 2015
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 02 Geochemistry; 07 Marine Geology and Oceanography; Alkaline earth metals; Chloride ion; Chlorine; Cores; Costa Rica Seismogenesis Project; Crust; East Pacific; Expedition 334; Expedition 344; Geochemistry; Halogens; Hydrochemistry; IODP Site U1378; IODP Site U1379; IODP Site U1380; IODP Site U1381; IODP Site U1412; IODP Site U1413; IODP Site U1414; Integrated Ocean Drilling Program; Isotope ratios; Isotopes; Marine sediments; Metals; North Pacific; Northeast Pacific; Oceanic crust; Pacific Ocean; Plate convergence; Pore water; Sediments; Sr-87/Sr-86; Stable isotopes; Strontium; Sulfates
Coordinates: N083532 N083532 W0840438 W0840438
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N082908 N082920 W0840740 W0840747
N084427 N084428 W0840648 W0840649
N083014 N083014 W0841332 W0841332
Record ID: 2015055305
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute.
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100 1 |a Ross, Nathan  |u Oregon State University, Corvallis, OR 
245 1 0 |a Data report; Strontium isotope analyses of pore fluids from the CRISP-A transect drilled during Expeditions 334 and 344 
300 |a 13 p. 
500 |a In English. 28 refs. 
500 |a Research program: IODP Integrated Ocean Drilling Program 
500 |a Affiliation: Oregon State University; Corvallis, OR; USA; United States 
500 |a Affiliation: Japan Agency for Marine-Earth Science and Technology; ; JPN; Japan 
500 |a Affiliation: Texas A&M University; ; USA; United States 
500 |a Affiliation: Lamont-Doherty Earth Observatory; ; USA; United States 
500 |a Affiliation: University of New England; ; AUS; Australia 
500 |a Affiliation: University of Washington; ; USA; United States 
500 |a Affiliation: Indiana State University; ; USA; United States 
500 |a Affiliation: Université de Franche-Comté; ; FRA; France 
500 |a Affiliation: Korea Institute of Geoscience and Mineral Resources; ; KOR; South Korea 
500 |a Affiliation: University of Vigo; ; ESP; Spain 
500 |a Affiliation: University of Tokyo; ; JPN; Japan 
500 |a Affiliation: Kochi University; ; JPN; Japan 
500 |a Affiliation: Helmholtz Centre for Ocean Research Kiel; ; DEU; Germany 
500 |a Affiliation: Universidade de Sao Paulo; ; BRA; Brazil 
500 |a Affiliation: Scripps Institution of Oceanography; ; USA; United States 
500 |a Affiliation: University of Graz; ; AUT; Austria 
500 |a Affiliation: Nanjing University; ; CHN; China 
500 |a Affiliation: Naval Research Laboratory; ; USA; United States 
500 |a Affiliation: Ohio State University; ; USA; United States 
500 |a Affiliation: Universidade Federal do Rio de Janeiro; ; BRA; Brazil 
500 |a Affiliation: Université de Lausanne; ; CHE; Switzerland 
500 |a Affiliation: University of Florida; ; USA; United States 
500 |a Affiliation: University of Southampton; ; GBR; United Kingdom 
500 |a Affiliation: Kumamoto University; ; JPN; Japan 
500 |a Affiliation: State Oceanic Administration; ; CHN; China 
500 |a Affiliation: University of California, Santa Cruz; ; USA; United States 
500 |a Affiliation: University of Washington; ; USA; United States 
500 |a Affiliation: Scripps Institution of Oceanography; ; USA; United States 
500 |a Source note: Proceedings of the Integrated Ocean Drilling Program; Costa Rica seismogenesis project, Program A, Stage 2 (CRISP-A2); Expedition 344 of the riserless drilling platform Balboa, Panama, to Puntarenas, Costa Rica; Sites U1380, U1381, and U1412-U1414, 23 October-11 December 2012, Robert N. Harris, Arito Sakaguchi, Katerina Petronotis, Alberto Malinverno, Alan T. Baxter, Richard Berg, Ashley Burkett, Delphine Charpentier, Jiyoung Choi, Paula Diz Ferreiro, Mari Hamahashi, Yoshitaka Hashimoto, Ken Heydolph, Luigi Jovane, Miriam Kastner, Walter Kurz, Steffen O. Kutterolf, Li Yongxiang, Kylara M. Martin, Cristina Millan, Débora B. Nascimento, Saneatsu Saito, Maria I. Sandoval Gutierrez, Elizabeth J. Screaton, Christopher E. Smith-Duque, Evan A. Solomon, Susanne M. Straub, Wataru Tanikawa, Marta E. Torres, Hitomi Uchimura, Paola Vannucchi, Yuzuru Yamamoto, Yan Quanshu and Xixi Zhao; Integrated Ocean Drilling Program, Expedition 344 Scientists, College Station, TX. Proceedings of the International Ocean Discovery Program, Vol.344, 13p. Publisher: International Ocean Discovery Program, Washington, DC, United States. ISSN: 2377-3189 
500 |a Publication type: journal article 
504 |b 28 refs. 
510 3 |a GeoRef, Copyright 2019 American Geosciences Institute. 
520 |a We report on the Sr isotopic composition of pore fluids recovered during Integrated Ocean Drilling Program Costa Rica Seismogenesis Project Expeditions 334 and 344. Pore fluid samples were acidified and loaded directly onto columns containing EICHROM Sr-Spec resin, followed by analyses using a NU multicollector inductively coupled plasma-mass spectrometer at the Keck Collaboratory, Oregon State University. Sites drilled on the upper plate exhibited a decrease in the >87`Sr/>86`Sr ratio to values as low as 0.70762 in the upper 200-300 m of the sediment column, suggesting the role of ash alteration. The unconformity between the slope sediment sequence and underlying framework rock, sampled at Sites U1378-U1380, is characterized by intense fracturing. The fluids sampled within the unconformity at these sites have >87`Sr/>86`Sr ratios ranging from 0.70834 to 0.70844. Fluids sampled from the incoming plate sediment show evidence of ash alteration and carbonate diagenesis, but the deepest sediment here may also be modified by diffusion of fluids from the underlying oceanic crust. Intense carbonate recrystallization in the lower 66 m of Site U1414 results in Sr concentrations that are almost an order of magnitude higher than those measured at the base of Site U1381. The deepest pore fluid sample measured at both Sites U1381 and U1414 has a >87`Sr/>86`Sr ratio of 0.7086. The strontium systematics in this margin, used in the context of other ongoing studies, may be used to unravel processes at this margin, such as carbonate diagenesis, ash alteration, fluid migration, and diffusive exchange with the underlying oceanic crust. 
650 7 |a Alkaline earth metals  |2 georeft 
650 7 |a Chloride ion  |2 georeft 
650 7 |a Chlorine  |2 georeft 
650 7 |a Cores  |2 georeft 
650 7 |a Costa Rica Seismogenesis Project  |2 georeft 
650 7 |a Crust  |2 georeft 
650 7 |a Geochemistry  |2 georeft 
650 7 |a Halogens  |2 georeft 
650 7 |a Hydrochemistry  |2 georeft 
650 7 |a Integrated Ocean Drilling Program  |2 georeft 
650 7 |a Isotope ratios  |2 georeft 
650 7 |a Isotopes  |2 georeft 
650 7 |a Marine sediments  |2 georeft 
650 7 |a Metals  |2 georeft 
650 7 |a Oceanic crust  |2 georeft 
650 7 |a Plate convergence  |2 georeft 
650 7 |a Pore water  |2 georeft 
650 7 |a Sediments  |2 georeft 
650 7 |a Sr-87/Sr-86  |2 georeft 
650 7 |a Stable isotopes  |2 georeft 
650 7 |a Strontium  |2 georeft 
650 7 |a Sulfates  |2 georeft 
651 7 |a East Pacific  |2 georeft 
651 7 |a Expedition 334  |2 georeft 
651 7 |a Expedition 344  |2 georeft 
651 7 |a IODP Site U1378  |2 georeft 
651 7 |a IODP Site U1379  |2 georeft 
651 7 |a IODP Site U1380  |2 georeft 
651 7 |a IODP Site U1381  |2 georeft 
651 7 |a IODP Site U1412  |2 georeft 
651 7 |a IODP Site U1413  |2 georeft 
651 7 |a IODP Site U1414  |2 georeft 
651 7 |a North Pacific  |2 georeft 
651 7 |a Northeast Pacific  |2 georeft 
651 7 |a Pacific Ocean  |2 georeft 
700 1 |a Torres, Marta E., 
700 1 |a Haley, Brian A., 
700 1 |a Solomon, Evan A., 
700 1 |a Kastner, Miriam, 
700 1 |a Sakaguchi, Arito, 
700 1 |a Petronotis, Katerina, 
700 1 |a Malinverno, Alberto, 
700 1 |a Baxter, Alan T., 
700 1 |a Berg, Richard, 
700 1 |a Burkett, Ashley, 
700 1 |a Charpentier, Delphine, 
700 1 |a Choi, Jiyoung, 
700 1 |a Ferreiro, Paula Diz, 
700 1 |a Hamahashi, Mari, 
700 1 |a Hashimoto, Yoshitaka, 
700 1 |a Heydolph, Ken, 
700 1 |a Jovane, Luigi, 
700 1 |a Kastner, Miriam, 
700 1 |a Kurz, Walter, 
700 1 |a Kutterolf, Steffen O., 
700 1 |a Li Yongxiang, 
700 1 |a Martin, Kylara M., 
700 1 |a Millan, Cristina, 
700 1 |a Nascimento, Débora B., 
700 1 |a Saito, Saneatsu, 
700 1 |a Sandoval Gutierrez, Maria I., 
700 1 |a Screaton, Elizabeth J., 
700 1 |a Smith-Duque, Christopher E., 
700 1 |a Solomon, Evan A., 
700 1 |a Straub, Susanne M., 
700 1 |a Tanikawa, Wataru, 
700 1 |a Torres, Marta E., 
700 1 |a Uchimura, Hitomi, 
700 1 |a Vannucchi, Paola, 
700 1 |a Yamamoto, Yuzuru, 
700 1 |a Yan Quanshu, 
700 1 |a Zhao, Xixi, 
710 2 |a Integrated Ocean Drilling Program, Expedition 344 Scientists, College Station, TX 
773 0 |a Harris, Robert N.  |t Proceedings of the Integrated Ocean Drilling Program; Costa Rica seismogenesis project, Program A, Stage 2 (CRISP-A2); Expedition 344 of the riserless drilling platform Balboa, Panama, to Puntarenas, Costa Rica; Sites U1380, U1381, and U1412-U1414, 23 October-11 December 2012  |d Washington, DC : International Ocean Discovery Program, 2015  |k Proceedings of the International Ocean Discovery Program  |x 2377-3189  |y IDSDA6  |n Proceedings of the Integrated Ocean Drilling Program; Costa Rica seismogenesis project, Program A, Stage 2 (CRISP-A2); Expedition 344 of the riserless drilling platform Balboa, Panama, to Puntarenas, Costa Rica; Sites U1380, U1381, and U1412-U1414, 23 October-11 December 2012, Robert N. Harris, Arito Sakaguchi, Katerina Petronotis, Alberto Malinverno, Alan T. Baxter, Richard Berg, Ashley Burkett, Delphine Charpentier, Jiyoung Choi, Paula Diz Ferreiro, Mari Hamahashi, Yoshitaka Hashimoto, Ken Heydolph, Luigi Jovane, Miriam Kastner, Walter Kurz, Steffen O. Kutterolf, Li Yongxiang, Kylara M. Martin, Cristina Millan, Débora B. Nascimento, Saneatsu Saito, Maria I. Sandoval Gutierrez, Elizabeth J. Screaton, Christopher E. Smith-Duque, Evan A. Solomon, Susanne M. Straub, Wataru Tanikawa, Marta E. Torres, Hitomi Uchimura, Paola Vannucchi, Yuzuru Yamamoto, Yan Quanshu and Xixi Zhao; Integrated Ocean Drilling Program, Expedition 344 Scientists, College Station, TX. Proceedings of the International Ocean Discovery Program, Vol.344, 13p. Publisher: International Ocean Discovery Program, Washington, DC, United States. ISSN: 2377-3189 Publication type: journal article  |g Vol. 344  |h illus., incl. 1 table, sketch map 
856 |u urn:doi: 10.2204/iodp.proc.344.201.2015