page_title: Lava Formation
section_title: Plantae
hierarchical_section_title: Lava Formation / Plantae
caption_attribution_description: Kakkayam
context_page_description: The Lava Formation is a Mesozoic geologic formation in Lithuania. Fish remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus. The Jotvingiai Group Toarcian deposits were deposited likely in a shallow lacustrine basin or a near sea freshwater lagoon, with the other environment of the formation consisting of shallow marine conditions, seashore barriers and dunes, on a hot and humid climate. Due to the abundant presence of deltaic sedimens on the upper part it is considered to be related to the retry of the sea level, as in the Polish equivalent formation, the Ciechocinek Formation.The climate at the time of deposition was strongly seasonal, probably with moonsonal periods. There is a great amountof kaolinite content, being present laterally in the basin, decreasing and lefting space to increasing smectite to the south-west of the formation. On the other hand, there is a great amount of coarsest sediments, what consist mostly on sands.
caption: Osmunda
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