LAVA/SEDIMENT INTERACTION RESULTED IN A PEPERITE TEXTURE: AN EXAMPLE FROM BOLNISI DISTRICT, GEORGIA

Ramaz Migineishvili; Manana Kavsadze

doi:10.52340/pajig.2024.136.12

Authors

Ramaz Migineishvili Tbilisi State University https://orcid.org/0000-0002-0256-0875
Manana Kavsadze Tbilisi State University https://orcid.org/0009-0009-8916-002X

DOI:

https://doi.org/10.52340/pajig.2024.136.12

Keywords:

fluidal peperite, lava flow-wet sediment interaction, subaerial volcanism, Georgia

Abstract

A thin layer of carbonate breccia, with limestone fragments in a red clay and calcite matrix, lies between Pliocene-Pleistocene basaltic lava and Danian limestones. Rare basaltic pieces suggest peperite formation due to lava interaction with wet breccia, with fluidal shapes from ductile deformation. This interaction varied with water saturation.

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Author Biographies

Ramaz Migineishvili, Tbilisi State University

Candidate of Geological-Mineralogical Sciences, Senior Researcher of Department of Volcanology and Mineral Resources Geology of Al. Janelidze Institute of Geology of Iv. Javakhishvili Tbilisi State University.

Manana Kavsadze, Tbilisi State University

Master of Geologicaly, Research scientist of Complex Laboratory of Geological Research of Alexandre Janelidze Institute of Geology of Ivane Javakhishvili Tbilisi State University.

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