3 research outputs found
Opasny Canyon β a natural archive of data on the large explosive eruptions from the Gorely caldera complex (Southern Kamchatka, Russia)
ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΡΠ°ΡΠΏΡΠΎΡΡΡΠ°Π½Π΅Π½ΠΈΡ ΠΈ ΠΏΡΠΎΠΈΡΡ ΠΎΠΆΠ΄Π΅Π½ΠΈΡ ΠΊΠ°Π»ΡΠ΄Π΅Ρ Ρ Π±Π°Π·Π°Π»ΡΡ-Π°Π½Π΄Π΅Π·ΠΈΡΠΎΠ²ΡΠΌ ΡΠΎΡΡΠ°Π²ΠΎΠΌ ΠΌΠ°Π³ΠΌ Π΄Π»Ρ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ Π³Π΅Π½Π΅Π·ΠΈΡΠ° ΠΌΠΈΠΎΡΠ΅Π½ΠΎΠ²ΡΡ ΠΈΠ³Π½ΠΈΠΌΠ±ΡΠΈΡΠΎΠ² ΠΠΎΡΡΠΎΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ»ΠΊΠ°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΡΡΠ° ΠΠ°ΠΌΡΠ°ΡΠΊΠΈ
Based on the statistical data of the Global Volcanism Program of the Smithsonian Institution and published materials, we present a comparative analysis of caldera-forming eruptions on global scale. The geodynamic settings and genesis of the caldera-forming eruptions with basaltic-andesitic magma compositions are described. The origin of the majority of mafic ignimbrites was related with external water. Such ignimbrites were generated in a submarine environment or with a contact with water. The newly obtained data, paleogeodynamic reconstruction and geological mapping of Miocene mafic ignimbrites of the Eastern volcanic belt (EVB) of Kamchatka confirm their genesis in costal-marine environment. These new data show significance of paleoreconstructions in studies of paleo-volcanoes and relief-forming pyroclastic rocks.ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ Π±Π°Π·Ρ Π΄Π°Π½Π½ΡΡ
ΠΠ»ΠΎΠ±Π°Π»ΡΠ½ΠΎΠΉ ΠΏΡΠΎΠ³ΡΠ°ΠΌΠΌΡ Π²ΡΠ»ΠΊΠ°Π½ΠΈΠ·ΠΌΠ° (ΠΠΠ) Π‘ΠΌΠΈΡΡΠΎΠ½ΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΈΠ½ΡΡΠΈΡΡΡΠ° ΠΈ ΠΎΠΏΡΠ±Π»ΠΈΠΊΠΎΠ²Π°Π½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΉ Π°Π½Π°Π»ΠΈΠ· ΠΊΠ°Π»ΡΠ΄Π΅ΡΠΎΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
ΠΈΠ·Π²Π΅ΡΠΆΠ΅Π½ΠΈΠΉ Π²ΡΠ»ΠΊΠ°Π½ΠΎΠ² ΠΠ΅ΠΌΠ»ΠΈ. ΠΠΎΠΊΠ°Π·Π°Π½Ρ Π³Π΅ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΏΠΎΠ·ΠΈΡΠΈΠΈ ΠΈ ΡΡΠ»ΠΎΠ²ΠΈΡ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΊΠ°Π»ΡΠ΄Π΅Ρ Ρ Π±Π°Π·Π°Π»ΡΡ-Π°Π½Π΄Π΅Π·ΠΈΡΠΎΠ²ΡΠΌ ΡΠΎΡΡΠ°Π²ΠΎΠΌ ΠΌΠ°Π³ΠΌ. Π ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠΌ ΠΈΡΠΊΠΎΠΌΡΠ΅ ΠΊΠ°Π»ΡΠ΄Π΅ΡΡ β ΡΡΠΎ ΡΠΈΡΠΎΠ²ΡΠ΅ Π²ΡΠ»ΠΊΠ°Π½Ρ. ΠΠΎΠ»ΡΡΠΈΠ½ΡΡΠ²ΠΎ ΠΈΠ· Π½ΠΈΡ
ΠΈΠΌΠ΅ΡΡ ΠΌΠ°ΡΡΠΈΠ²Π½ΡΠ΅ Π»Π°Π²ΠΎΠ²ΡΠ΅ ΠΏΠΎΡΠΎΠΊΠΈ, ΡΠΎΠ»ΡΠΊΠΎ Π² Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΈΡ
ΡΠ»ΡΡΠ°ΡΡ
Π±ΡΠ»ΠΈ ΠΎΠΏΠΈΡΠ°Π½Ρ ΠΈΠ³Π½ΠΈΠΌΠ±ΡΠΈΡΡ Ρ Π±Π°Π·Π°Π»ΡΡ-Π°Π½Π΄Π΅Π·ΠΈΡΠΎΠ²ΡΠΌ ΡΠΎΡΡΠ°Π²ΠΎΠΌ ΠΌΠ°Π³ΠΌ. ΠΠ±ΡΠ΅Π΄ΠΈΠ½ΡΡΡΠΈΠΌΠΈ ΠΏΡΠΈΠ·Π½Π°ΠΊΠ°ΠΌΠΈ ΠΏΡΠΎΠΈΡΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π±Π°Π·Π°Π»ΡΡ-Π°Π½Π΄Π΅Π·ΠΈΡΠΎΠ²ΡΡ
ΠΈΠ³Π½ΠΈΠΌΠ±ΡΠΈΡΠΎΠ² ΡΠ²Π»ΡΡΡΡΡ ΠΊΠΎΠ½ΡΠ°ΠΊΡΡ Π³ΠΎΡΡΡΠ΅Π³ΠΎ ΠΏΠΈΡΠΎΠΊΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΡΠΎΠΊΠ° Ρ Β«Π²Π½Π΅ΡΠ½Π΅ΠΉΒ» Π²ΠΎΠ΄ΠΎΠΉ. ΠΠ°Π»Π΅ΠΎΠ³Π΅ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΅ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΈ ΠΠ°ΠΌΡΠ°ΡΠΊΠΈ ΠΌΠΈΠΎΡΠ΅Π½ΠΎΠ²ΠΎΠ³ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΈ Π°Π½Π°Π»ΠΈΠ· ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π³Π΅ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΊΠ°ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π±Π°Π·Π°Π»ΡΡ-Π°Π½Π΄Π΅Π·ΠΈΡΠΎΠ²ΡΡ
ΠΈΠ³Π½ΠΈΠΌΠ±ΡΠΈΡΠΎΠ² ΠΠΎΡΡΠΎΡΠ½ΠΎΠ³ΠΎ Π²ΡΠ»ΠΊΠ°Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΠΏΠΎΡΡΠ° ΠΠ°ΠΌΡΠ°ΡΠΊΠΈ ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°ΡΡ ΠΈΡ
ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ Π² ΠΏΡΠΈΠ±ΡΠ΅ΠΆΠ½ΠΎ-ΠΌΠΎΡΡΠΊΠΎΠΉ ΠΎΠ±ΡΡΠ°Π½ΠΎΠ²ΠΊΠ΅, ΡΡΠΎ ΡΠΎΠ³Π»Π°ΡΡΠ΅ΡΡΡ Ρ ΠΏΡΠΈΠ²Π΅Π΄Π΅Π½Π½ΡΠΌΠΈ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ°ΠΌΠΈ ΠΈΠ·ΡΡΠ΅Π½ΠΈΡ ΠΏΡΠΎΠΈΡΡ
ΠΎΠΆΠ΄Π΅Π½ΠΈΡ Π±Π°Π·Π°Π»ΡΡ-Π°Π½Π΄Π΅Π·ΠΈΡΠΎΠ²ΡΡ
ΠΈΠ³Π½ΠΈΠΌΠ±ΡΠΈΡΠΎΠ² Π²ΡΠ»ΠΊΠ°Π½ΠΎΠ² Π² Π΄ΡΡΠ³ΠΈΡ
ΡΠ΅Π³ΠΈΠΎΠ½Π°Ρ
ΠΠ΅ΠΌΠ»ΠΈ. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ Π΄Π°Π½Π½ΡΠ΅ ΠΏΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡ Π·Π½Π°ΡΠΈΠΌΠΎΡΡΡ ΡΠ΅ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΉ ΠΏΠ°Π»Π΅ΠΎΠ³Π΅ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠ±ΡΡΠ°Π½ΠΎΠ²ΠΎΠΊ Π² ΠΈΠ·ΡΡΠ΅Π½ΠΈΠΈ ΡΠΈΠΏΠΎΠ² ΠΏΠ°Π»Π΅ΠΎΠ²ΡΠ»ΠΊΠ°Π½ΠΎΠ² ΠΈ ΡΠ΅Π»ΡΠ΅ΡΠΎΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΡ
ΠΏΠΈΡΠΎΠΊΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠΎΡΠΎΠ΄
The analysis of spatial distributions, origins of caldera-forming eruptions with basaltic-andesitic magma compositions, and genesis of Miocene ignimbrites of the Eastern volcanic belt, Kamchatka
Based on the statistical data of the Global Volcanism Program of the Smithsonian Institution and published materials, we present a comparative analysis of caldera-forming eruptions on global scale. The geodynamic settings and genesis of the caldera-forming eruptions with basaltic-andesitic magma compositions are described. The origin of the majority of mafic ignimbrites was related with external water. Such ignimbrites were generated in a submarine environment or with a contact with water. The newly obtained data, paleogeodynamic reconstruction and geological mapping of Miocene mafic ignimbrites of the Eastern volcanic belt (EVB) of Kamchatka confirm their genesis in costal-marine environment. These new data show significance of paleoreconstructions in studies of paleo-volcanoes and relief-forming pyroclastic rocks