Evolution of Permian seawater: evidence from fluid inclusions in halite

Kovalevych, Volodymyr M.; Peryt, Tadeusz Marek; Carmona, V.; Sydor, Dariya; Vovnyuk, Serhiy; Hałas, Stanisław

doi:10.1127/0077-7757/2002/0178-0027

Cited by 24 publications

(19 citation statements)

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“…Their results from the Asselian-Sakmarian interval are similar to our results from the Early Triassic (Table 5; see Kovalevych et al 2002a). This differs from the modem by an increased Ca 2 + (by 36%) and decreased SO/ (by 31%).…”

Section: Chemical Composition Of Early Triassic Seawatersupporting

confidence: 81%

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Fluid inclusions in halite from the Röt (lower triassic) salt deposit in central Germany: Evidence for seawater chemistry and conditions of salt deposition and recrystallization

Kovalevych

Paul

Peryt

2009

Carbonates and Evaporites

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The study of fluid inclusions in Lower Triass ic Rot halite from the Rockensussra 2/83 borehole in northern Germany showe d the presence ofprimary and second ary gas-liquid inclusions. The gas phase in inclus ions indicates their stretching due to sa lt overheating at some postsedimentary stage . The homogenization temperature of inclusions indicates 'the overheating temperature of about 60-70°C. The overheating is additionally indicated by trails of migration oflarge secondary inclus ions occurring inside chevrons. The major-ion (K, Mg and 804) composition of inclusion brines was established with the use of ultra microchemical analysis (UMCA). The results of chemical analyses of brines of primary inclusions in halite from the Rockensussra 2/83 borehole confirm the earlier results for the Rot halite from the Netherlands and Poland. The bromin e content in halite is 78-107 ppm , supporting thus marine origin of halite. Brines ofprimary gas-liquid inclusions are thus representative samples of trapped evaporite wa ter and they may be used for the reconstruction ofthe composition ofEarly Triassic seawater. The comparison' of our analytical data with the earlier published data and models of chemical composition of seawater during the Phane rozoic which were constructed with the use of the BMW computer program makes it possible to conclude that the Early Triassic seawater was of the S04-rich type and consid ering the ratios ofmajor ions it fully corresponded to the Early Permian (Asselian-Sakmarian) seawater. It differed from the present seawater by a slight decre ase of Na and Mg ions, a considerable decrease ofS0 4 ion (by 31%) and an increase ofCa ion (by 36%).

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Section: Chemical Composition Of Early Triassic Seawatersupporting

confidence: 81%

“…1997;Horita et a1. 2002) and many sections of the Upper Pennian Zechstein salts in Poland (Kovalevych et al 2002a). Important to our study, measurements were made on single-phase inclusions from the Rot in the Netherlands and two-phase inclusions in Poland (Kovalevych et a1.…”

Section: Chemical Composition Of Parent Brinesmentioning

confidence: 99%

Fluid inclusions in halite from the Röt (lower triassic) salt deposit in central Germany: Evidence for seawater chemistry and conditions of salt deposition and recrystallization

Kovalevych

Paul

Peryt

2009

Carbonates and Evaporites

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“…In clu sions in ha lite, which can be rec og nized as pri mary ow ing to their spa tial ar range ment (e.g., Kovalevych et al, 2002;Kovalevych and Vovnyuk, 2010 with ref er ences therein), are rare. These in clu sions dif fer from typ i cal pri mary FIAs de vel oped dur ing sed i men ta tion, with respect to the infill ma te rial.…”

Section: Discussionmentioning

confidence: 99%

Evidence of high-temperature rock salt transformations in areas of occurrence of borate minerals (Zechstein, Kłodawa salt dome, Poland)

Toboła

Wachowiak²

2018

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2 Geosalt -Badania i ekspertyzy geologiczne z³ó¿ soli, Rzepichy 42, 30-240 Kraków, Po land Tobo³a, T., Wachowiak, J. 2018. Ev i dence of high-tem per a ture rock salt trans for ma tions in ar eas of oc cur rence of bo rate min er als (Zechstein, K³odawa salt dome, Po land). Geo log i cal Quar terly, 62 (1): 134-145, doi: 10.7306/gq.1390 Oc cur rences of bo rate min er als in the Zechstein salt-bear ing de pos its of the K³odawa salt dome (cen tral Po land), and the man ner of their de vel op ment, sug gest that the min er als were formed at high tem per a tures, that con sid er ably ex ceed the tem per a ture es ti mated from the ther mal gra di ent (~180°C). Re search on rock salt and po tas sium-mag ne sium salts con taining congolite and boracite, re spec tively, are con sis tent with high-tem per a ture pro cesses of trans for ma tions af fect ing the salt rocks in cer tain sec tions of the salt dome. The chem i cal com po si tion of, and daugh ter min er als oc cur ring in, pri mary fluid inclu sions in ha lite, orig i nat ing from the congolite zone, in di cated a very high pro por tion of po tas sium and mag ne sium in the brines from which the ha lite crys tal lised. The ther mal trans for ma tions ob served in in clu sions in di cate a ha lite crystallisation tem per a ture ex ceed ing 420°C. Anhydrite crys tals, co-oc cur ring with bo rate min er als, rep re sent unique fea tures as to the distri bu tion and com po si tion of solid and fluid in clu sions. These fea tures in di cate crystallisation or recrystallisation in con di tions that dif fered con sid er ably from those typ i cal of the salt dome, with the in volve ment of so lu tions of chang ing chem i cal com posi tions. The crys tals con tain mul ti ple solid in clu sions of trans par ent and non-trans par ent min er als, among which we have focused on car nal lite. The re la tion ships of car nal lite with liq uid and gas eous phases in di cate, as in the congolite zone, mi gra tion of very highly con cen trated brines with re spect to po tas sium and mag ne sium, or even trans port of car nal lite in the form of melt (liq uid). Mea sure ments of fluid in clu sion ho mog e ni za tion tem per a tures, within the range from 197.8 to 473.8°C, sup ported a high-tem per a ture or i gin for these min er als in hy dro ther mal con di tions.Key words: Zechstein, salt de posit, hy dro ther mal con di tions, bo rates, fluid in clu sions.

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“…The sul phur iso to pic con tent of the Perm ian evaporites has al ready been stud ied for many salt bas ins around the world (Ta ble 1; Cortecci et al, 1981;Pankina et al, 1985;Makhnach et al, 2000;Vysotskiy et al, 2004;Longinelli and Flora, 2007;Shekhunova and Stadnichenko, 2010;GarcÍa-Veigas et al, 2011). De tailed stud ies of the sul phur (d 34 S) iso to pic com po sition of evaporites of Kungurian age were con ducted mainly for the Cas pian Ba sin (Makhnach et al, 2000); sin gle data from the Up per Kama Ba sin (Solikamsk) have also been pre sented (Dzinoridze et al, 2000;Kovalevych et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…In pre vi ous stud ies (Holser and Kaplan, 1966;Claypool et al, 1980;Pankina et al, 1985), the d 34 S value of Perm ian anhydrite A -the value curve of the sul phate ions con tent (Kovalevich and Vovnyuk, 2010); for cal cu lat ing the con tent of sul phate ion, we used data from the fol low ing pa pers: Moskovskyi (1983), Petrychenko (1988), Horita et al (1991), Kovalevych et al (2002), Horita et al (2002), Lowenstein et al (2005), Galamay et al (2013); B -the value d 34 S curve of an hyd rites (ac cord ing to Ta ble 2) was es tab lished as an av er age value. Ta ble 2 pres ents d…”

mentioning

confidence: 99%

The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites

Galamay

Meng

Bukowski

et al. 2016

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1 Na tional Acad emy of Sci ences of Ukraine, In sti tute of Ge ol ogy and Geo chem is try of Com bus ti ble Min er als, Naukova, 3a, 79060 Lviv, Ukraine 18 O of anhydrite from ha lite fa cies var ies from +12.6 to +15.0‰ and +7.5 to +10.9‰ re spec tively. The quan ti ta tive ra tio of py rite con tent from the wa ter-in sol u ble res i due (silty-sand frac tion) is char ac ter ized by ex tremely low (<<1%) to high (4-5%) steep gra da tion val ues. The in creased pres ence of py rite in di cates the in flu ence of bac te rial sul phate re duc tion. The sul phate re duc tion pro cess was more in tense, es pe cially when evaporites were formed in mud. The nar row fluc tu a tion range of sul phur and ox y gen iso topes val ues of the mea sured anhydrite in dicates low lev els of frac tion ation. It was es tab lished that dur ing the Perm ian, evo lu tion ary changes in the con tent of sul phate ions in sea wa ter cor re late with the sul phur iso to pic com po si tion of ma rine evaporites.

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Evolution of Permian seawater: evidence from fluid inclusions in halite

Cited by 24 publications

References 0 publications

Fluid inclusions in halite from the Röt (lower triassic) salt deposit in central Germany: Evidence for seawater chemistry and conditions of salt deposition and recrystallization

Fluid inclusions in halite from the Röt (lower triassic) salt deposit in central Germany: Evidence for seawater chemistry and conditions of salt deposition and recrystallization

Evidence of high-temperature rock salt transformations in areas of occurrence of borate minerals (Zechstein, Kłodawa salt dome, Poland)

The sulphur and oxygen isotopic composition of anhydrite from the Upper Pechora basin (Russia): new data in the context of the evolution of the sulphur isotopic record of Permian evaporites

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