Interstitial-water chemistry and diagenesis of periplatform sediments from the Bahamas, ODP Leg 101

Peter K Swart, M. Guzikowski

Research output: Chapter in Book/Report/Conference proceedingChapter

27 Citations (Scopus)

Abstract

Concentrations of dissolved Ca2+, Sr2+, Mg2+, SO2-4, and alkalinity were measured in pore waters squeezed from sediments taken from ODP Holes in the Florida Straits; north of Little Bahama Bank; in Exuma Sound; and in Northeast Providence Channel. These data are compared with the mineralogy and strontium content of the sediments from which the waters were squeezed. Contrasts in the geochemical profiles suggest that significantly different processes govern pore-water signatures at each group of sites. We suggest that the pore-water chemistry in these deposits is principally controlled by diagenetic reactions occurring within each sequence. The location and extent of carbonate diagenesis can be estimated from dissolved Sr2+ profiles. The rates of recrystallization we calculate are lower than those found in some DSDP pelagic sites. As the waters throughout most of the holes are saturated with respect to SrSO4, celestite precipitation may cause erroneously low Sr2+ production rates and, consequently, low calculated rates of recrystallization. We therefore encourage only the discriminate use of Sr2+ profiles in the quantification of diagenetic processes. -from Authors

Original languageEnglish (US)
Title of host publicationProc., scientific results, ODP, Leg 101, Bahamas
EditorsJ.A. Austin Jr, W. Schlager
PublisherODP, Texas A&M University, College Station; UK distributors, IPOD Committee, NERC, Swindon
Pages363-380
Number of pages18
StatePublished - 1988

Fingerprint

Ocean Drilling Program
water chemistry
diagenesis
porewater
sediment
celestine
Deep Sea Drilling Project
strontium
alkalinity
strait
mineralogy
carbonate
water
rate

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Swart, P. K., & Guzikowski, M. (1988). Interstitial-water chemistry and diagenesis of periplatform sediments from the Bahamas, ODP Leg 101. In J. A. Austin Jr, & W. Schlager (Eds.), Proc., scientific results, ODP, Leg 101, Bahamas (pp. 363-380). ODP, Texas A&M University, College Station; UK distributors, IPOD Committee, NERC, Swindon.

Interstitial-water chemistry and diagenesis of periplatform sediments from the Bahamas, ODP Leg 101. / Swart, Peter K; Guzikowski, M.

Proc., scientific results, ODP, Leg 101, Bahamas. ed. / J.A. Austin Jr; W. Schlager. ODP, Texas A&M University, College Station; UK distributors, IPOD Committee, NERC, Swindon, 1988. p. 363-380.

Research output: Chapter in Book/Report/Conference proceedingChapter

Swart, PK & Guzikowski, M 1988, Interstitial-water chemistry and diagenesis of periplatform sediments from the Bahamas, ODP Leg 101. in JA Austin Jr & W Schlager (eds), Proc., scientific results, ODP, Leg 101, Bahamas. ODP, Texas A&M University, College Station; UK distributors, IPOD Committee, NERC, Swindon, pp. 363-380.
Swart PK, Guzikowski M. Interstitial-water chemistry and diagenesis of periplatform sediments from the Bahamas, ODP Leg 101. In Austin Jr JA, Schlager W, editors, Proc., scientific results, ODP, Leg 101, Bahamas. ODP, Texas A&M University, College Station; UK distributors, IPOD Committee, NERC, Swindon. 1988. p. 363-380
Swart, Peter K ; Guzikowski, M. / Interstitial-water chemistry and diagenesis of periplatform sediments from the Bahamas, ODP Leg 101. Proc., scientific results, ODP, Leg 101, Bahamas. editor / J.A. Austin Jr ; W. Schlager. ODP, Texas A&M University, College Station; UK distributors, IPOD Committee, NERC, Swindon, 1988. pp. 363-380
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