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Browsing by Subject "halite aggregates"

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    Item type:Article, Access status: Open Access ,
    Agregaty halitowe współczesnych śródlądowych zbiorników słonych - reminiscencje z wypraw naukowych PSGS
    (Wydawnictwa AGH, 2013) Tomassi-Morawiec, Hanna; Czapowski, Grzegorz; Schramm, Michael
    In the nearshore parts of recent salt lakes - the Dead Sea (Israel) and the Tuz Lake (Turkey) - during the two PSGS excursions (2006' and 2011') spherical forms of fine-grained halite accumulation were found. These ones from the Dead Sea (few milimetres to few centimetres in diameter) were observed on the nearshore bottom with active bottom currents. The halite »balls« from Tuz Lake (0.5-0.7 cm in diameter) were observed on the salt crust surface that forms every year in dry season. It seems that crystal aggregates from the Dead Sea are the halite pisoids, formed due to continuous concentration of halite crystals, precipitated from the halite-saturated brines, onto the former fine halite ooids. Such forms became rolled and moved on the nearshore bottom by the bottom currents and storm waving. Salt »balls« from the Tuz Lake are rather of aeolian origin (halite »aeolian ooids«) and they are the product of aeolian transport of the halite aggregates and crystals on the rough surface of exposed salt crust. The bromine content determined in few »balls« is similar to that observed in halites originated from marine brines.