Diagenetic processes in Holocene carbonate sediments: Florida Bay mudbanks and islands

S. J. Burns, Peter K Swart

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In the mudbank sediments, little carbonate mineral diagenesis is taking place. No change in sediment mineralogy is detectable and pore water profiles of Ca2+, Mg2+ and Sr2+ show only minor variation. Chloride concentrations indicate substantial biological mixing of seawater from the bay into the sediments in one of the cores. Pore water analyses of sulphate and alkalinity show only a low degree of sulphate depletion and a decreasing extent of sulphate reduction downcore. Models of sulphate reduction in the mudbank show that there is substantial chemical exchange between the sediment pore fluids and water from the bay probably as a result of bio-irrigation. Despite the pore fluid chemical evidence for diagenetic reactions involving carbonate minerals, no changes in sediment mineralogy were detected in X-ray diffraction analyses, probably because of the comparatively young age of the island. -from Authors

Original languageEnglish (US)
Pages (from-to)285-304
Number of pages20
JournalSedimentology
Volume39
Issue number2
StatePublished - 1992

Fingerprint

mudbank
carbonate sediment
Holocene
sulfate
sediment
porewater
mineralogy
carbonate
fluid
mineral
alkalinity
diagenesis
X-ray diffraction
chloride
irrigation
seawater

ASJC Scopus subject areas

  • Geology
  • Stratigraphy

Cite this

Diagenetic processes in Holocene carbonate sediments : Florida Bay mudbanks and islands. / Burns, S. J.; Swart, Peter K.

In: Sedimentology, Vol. 39, No. 2, 1992, p. 285-304.

Research output: Contribution to journalArticle

@article{b1bf33c20ab840939d09f360dcbe0306,
title = "Diagenetic processes in Holocene carbonate sediments: Florida Bay mudbanks and islands",
abstract = "In the mudbank sediments, little carbonate mineral diagenesis is taking place. No change in sediment mineralogy is detectable and pore water profiles of Ca2+, Mg2+ and Sr2+ show only minor variation. Chloride concentrations indicate substantial biological mixing of seawater from the bay into the sediments in one of the cores. Pore water analyses of sulphate and alkalinity show only a low degree of sulphate depletion and a decreasing extent of sulphate reduction downcore. Models of sulphate reduction in the mudbank show that there is substantial chemical exchange between the sediment pore fluids and water from the bay probably as a result of bio-irrigation. Despite the pore fluid chemical evidence for diagenetic reactions involving carbonate minerals, no changes in sediment mineralogy were detected in X-ray diffraction analyses, probably because of the comparatively young age of the island. -from Authors",
author = "Burns, {S. J.} and Swart, {Peter K}",
year = "1992",
language = "English (US)",
volume = "39",
pages = "285--304",
journal = "Sedimentology",
issn = "0037-0746",
publisher = "Wiley-Blackwell",
number = "2",

}

TY - JOUR

T1 - Diagenetic processes in Holocene carbonate sediments

T2 - Florida Bay mudbanks and islands

AU - Burns, S. J.

AU - Swart, Peter K

PY - 1992

Y1 - 1992

N2 - In the mudbank sediments, little carbonate mineral diagenesis is taking place. No change in sediment mineralogy is detectable and pore water profiles of Ca2+, Mg2+ and Sr2+ show only minor variation. Chloride concentrations indicate substantial biological mixing of seawater from the bay into the sediments in one of the cores. Pore water analyses of sulphate and alkalinity show only a low degree of sulphate depletion and a decreasing extent of sulphate reduction downcore. Models of sulphate reduction in the mudbank show that there is substantial chemical exchange between the sediment pore fluids and water from the bay probably as a result of bio-irrigation. Despite the pore fluid chemical evidence for diagenetic reactions involving carbonate minerals, no changes in sediment mineralogy were detected in X-ray diffraction analyses, probably because of the comparatively young age of the island. -from Authors

AB - In the mudbank sediments, little carbonate mineral diagenesis is taking place. No change in sediment mineralogy is detectable and pore water profiles of Ca2+, Mg2+ and Sr2+ show only minor variation. Chloride concentrations indicate substantial biological mixing of seawater from the bay into the sediments in one of the cores. Pore water analyses of sulphate and alkalinity show only a low degree of sulphate depletion and a decreasing extent of sulphate reduction downcore. Models of sulphate reduction in the mudbank show that there is substantial chemical exchange between the sediment pore fluids and water from the bay probably as a result of bio-irrigation. Despite the pore fluid chemical evidence for diagenetic reactions involving carbonate minerals, no changes in sediment mineralogy were detected in X-ray diffraction analyses, probably because of the comparatively young age of the island. -from Authors

UR - http://www.scopus.com/inward/record.url?scp=0027065914&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027065914&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0027065914

VL - 39

SP - 285

EP - 304

JO - Sedimentology

JF - Sedimentology

SN - 0037-0746

IS - 2

ER -