Postvolcanic processes in the Dolerites of Javakheti Upland (on the example of the Gomareti and Akhalkalaki plateaus

Author: Bezhan Tutberidze
Co-authors: Mariam Akhalkatsishvili
Keywords: Gomareti and Akhalkalaki Plateau, zeolites, Aragonite.
Annotation:

This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions. This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions. This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions. This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions. This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions. This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions. This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions. This paper presents the results of a complex study of secondary mineralization processes in hy¬d¬¬-ro¬¬thermally altered zones upper Pliocene-Lower Pleistocene dolerite (1,7 million years) of the Gomareti and Akhalkalaki Plateau.Within the zone, several sites with different degrees of hy-drothermal metamorphism have been identified; A wide range of secondary minerals are ge¬n¬er¬ally characterized dolerites of the hydrothermally altered zone of Gomareti Plateau: Ca and Na-Ca zeolites (shabazzite, thomsonite), clay minerals (montmorillonite, beidellite) carbonate (calcite) and pumpellyite. The range of secondary minerals in hydrothermally altered dolerites of Akh-alkalaki Plateau (section Toki) is much narrow: The major minerals are Radial-Fibrous Aragonite, slightly calcite and dolomite; The formation of secondary minerals occurs by the total or partial dissolution of rock forming minerals (plagioclase, olivine, pyroxene) by influence of low-temp¬erature hydrothermal solutions. Secondary mineralization process occur under neutral and alk¬al¬ine in environment by Si low activities conditions

Lecture files:

Postvolcanic processes in the Dolerites of Javakheti Upland (on the example of the Gomareti and Akhalkalaki plateaus) [en]
პოსტვულკანური პროცესები ჯავახეთის ზეგნის დოლერიტებში (გომარეთისა და ახალქალაქის პლატოების მაგალითზე) [ka]