Strontium and its isotopic composition in interstitial waters of marine carbonate sediments
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Cited by (49)
Impact of iron release by volcanic ash alteration on carbon cycling in sediments of the northern Hikurangi margin
2020, Earth and Planetary Science LettersCitation Excerpt :Ash alteration was observed in smear slides throughout the northern Hikurangi margin, visible as discolouration and formation of clays, particularly around the edges of some shards. A coincident increase in pore-water Sr2+ concentrations with decrease in 87Sr/86Sr values below that of the coeval seawater values is commonly taken as evidence for alteration of volcanogenic material or oceanic basement (Elderfield and Gieskes, 1982; Gieskes et al., 1986). The coeval seawater 87Sr/86Sr values over the past 1 Ma are >0.709 (Burke et al., 1982), a time interval that brackets the age frame of the study site.
Calcium isotope fractionation in sedimentary pore fluids from ODP Leg 175: Resolving carbonate recrystallization
2018, Geochimica et Cosmochimica ActaCitation Excerpt :During the recrystallization of biogenic carbonates, strontium is released into the pore fluid during the dissolution, and included to a lesser extent into the reprecipitated minerals. Hence, the strontium concentration can be used to calculate the recrystallization rate of the carbonate (Baker et al., 1982; Gieskes et al., 1986; Richter and DePaolo, 1987; Richter and DePaolo, 1988; Richter and Liang, 1993; Rudnicki et al., 2001; etc.). The δ44Ca of the pore fluid is controlled by the dissolution and recrystallization of the carbonate as discussed above.
Diagenesis in tephra-rich sediments from the Lesser Antilles Volcanic Arc: Pore fluid constraints
2018, Geochimica et Cosmochimica ActaCitation Excerpt :For example, it has been estimated that 15–20 wt% of Caribbean Sea sediments are composed of ash (Peters et al., 2000) and, on a larger scale, ∼6 to 60 wt% of northwest Pacific sediments may be composed of volcanogenic material (Scudder et al., 2009, 2014). Diagenesis of this material can lead to the release of dissolved constituents, precipitation of new minerals (clays and carbonates), and (re)crystallization of various mineral phases (Elderfield and Gieskes, 1982; Fisher and Schmincke, 1984; Gieskes et al., 1986; Gieskes et al., 1987; Gieskes et al., 1990a,b,c). In particular, highly reactive glassy particles can exert a strong influence on diagenetic processes (Kutterolf et al., 2007; Hesse and Schacht, 2011), and these processes can impact the ocean’s elemental budgets (Hart and Staudigel, 1982; Staudigel and Hart, 1983; Aller, 2014).
The geochemistry and origin of the hydrothermal water erupted at Lusi, Indonesia
2018, Marine and Petroleum GeologyVariability of carbonate diagenesis in equatorial Pacific sediments deduced from radiogenic and stable Sr isotopes
2015, Geochimica et Cosmochimica Acta
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Present address: Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, U.S.A.