Geochemistry of Evaporites and Evolution of Seawater

Bąbel, Maciej; Schreiber, B. Charlotte

doi:10.1016/b978-0-08-095975-7.00718-x

Cited by 129 publications

(125 citation statements)

References 383 publications

Supporting

Mentioning

115

Contrasting

Unclassified

Order By: Relevance

“…As the oceans are the main reservoirs for these components, such large variations in the rate of NaCl and CaSO 4 output from the ocean to evaporite deposits imply changes in the salinity and chemistry of seawater . Indeed, seawater salinity may have decreased from roughly 40‰ at Cambrian time to the 35 .5‰ of today (Babel and Schreiber, 2013) in part due to removal of salts from the ocean and lack of their recycling .…”

Section: Evaporite Deposits and Fluid Inclusionsmentioning

confidence: 99%

“…The resultant dissolved constituents are transported to the oceans by rivers, and less importantly, by ground waters . Once present in seawater, these components are re-deposited in shelf environments as primary or secondary calcite and aragonite, dolomite and CaSO 4 and MgSO 4 salts in evaporite deposits (Babel and Schreiber, 2013) . Subsequent to deposition, these minerals either re-enter the weathering cycle through uplift and exposure or can be removed to deeper burial regimes .…”

Section: Calcium-magnesium-silicate-carbonate-co 2 Subcycle Cycle Of mentioning

confidence: 99%

“…However, one must take care in interpretation of trends with time because brine chemistry is far removed from the parent seawater and reconstruction of the chemical evolution of these brines is a considerable challenge (Holland, 2004;Babel and Schreiber, 2013) . Sporadic distribution of NaCl (halite, solid lines) and CaSO 4 (gypsum and anhydrite, dashed lines) in marine evaporites during the Phanerozoic.…”

Section: Evaporite Deposits and Fluid Inclusionsmentioning

confidence: 99%

See 2 more Smart Citations

The Marine Carbon System and Ocean Acidification during Phanerozoic Time

Mackenzie¹,

Andersson²

2013

geochempersp

View full text Add to dashboard Cite

Section: Evaporite Deposits and Fluid Inclusionsmentioning

confidence: 99%

Section: Calcium-magnesium-silicate-carbonate-co 2 Subcycle Cycle Of mentioning

confidence: 99%

Section: Evaporite Deposits and Fluid Inclusionsmentioning

confidence: 99%

See 1 more Smart Citation

The Marine Carbon System and Ocean Acidification during Phanerozoic Time

Mackenzie¹,

Andersson²

2013

geochempersp

View full text Add to dashboard Cite

“…(Garrett, 2001) and probably on Mars (Peterson et al, 2007). The minerals formed under these conditions are called cryogenic (Babel and Schreiber, 2014;Brasier, 2011).…”

Section: Evaporative Concentration Versus Frigid Precipitation: Minermentioning

confidence: 99%

“…Saline deposits have proved to be very useful in the study of paleoclimatology and sedimentology (Babel and Schreiber, 2014;Escavy et al, 2012;Fan-Wei et al, 2013;Kendall, 1992;Lowenstein et al, 1999;Minghui et al, 2010;Rouchy and Blanc-Valleron, 2009;Schreiber and El Tabakh, 2000;Warren, 2010). These studies are focused on the relationship between the main periods of the Earth's history with salt deposit formation and climate, which is one of the key factors involved in their deposition.…”

Section: Introductionmentioning

confidence: 99%

Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain

2015

View full text Add to dashboard Cite

Abstract. Salt deposits are commonly used as indicators of different paleoclimates and sedimentary environments, as well as being geological resources of great economic interest. Ordinarily, the presence of salt deposits is related to warm and arid environmental conditions, but there are salts, like mirabilite, that form by cooling and a concentration mechanism based on cooling and/or freezing. The diagenetic transformation of mirabilite into thenardite in the upper part of the lower Miocene unit of the Tajo basin (Spain) resulted in the largest reserves of this important industrial mineral in Europe. This unit was formed in a time period ( ∼ 18.4 Ma) that, in other basins of the Iberian Peninsula, is characterized by the existence of particular mammal assemblages appropriate to a relatively cool and arid climate. Determining the origin of the thenardite deposits as related to the diagenetic alteration of a pre-existing mirabilite permits the establishment and characterization of the sedimentary environment where it was formed and also suggests use as a possible analog with comparable deposits from extreme conditions such as Antarctica or Mars.

show abstract

Protohistoric briquetage at Puntone (Tuscany, Italy): principles and processes of an industry based on the leaching of saline lagoonal sediments

et al. 2020

View full text Add to dashboard Cite

A protohistoric (c.10th–5th c. BC) briquetage site at Puntone (Tuscany, Italy) was studied to unravel the salt production processes and materials involved. Geophysical surveys were used to identify kilns, pits, and dumps. One of these pits and a dump were excavated, followed by detailed chemical and physical analyses of the materials encountered. The pit had been used for holding brine, obtained by leaching of lagoonal sediment over a sieve, that afterwards was discarded to form large dumps. Phases distinguished indicate that the pit filled with fine sediment and was regularly “cleaned.” The presence of ferroan‐magnesian calcite in the pit fill testifies to the prolonged presence of anoxic brine. The production processes could be reconstructed in detail by confronting the analytical results with known changes in composition of a brine upon evaporation. These pertain in particular to the accumulation of “bitterns” and increased B (boron) concentrations in a residual brine. Both could be traced in the materials studied, and were found to be far more indicative than the ubiquitously studied concentrations of Cl and Na.

show abstract

Geochemistry of Evaporites and Evolution of Seawater

Cited by 129 publications

References 383 publications

The Marine Carbon System and Ocean Acidification during Phanerozoic Time

The Marine Carbon System and Ocean Acidification during Phanerozoic Time

Thenardite after mirabilite deposits as a cool climate indicator in the geological record: lower Miocene of central Spain

Protohistoric briquetage at Puntone (Tuscany, Italy): principles and processes of an industry based on the leaching of saline lagoonal sediments

Contact Info

Product

Resources

About