Rekonstrukce erodovaných miocénních monogenetických strombolských kuželů: studium charakteru vulkanické aktivity jičínského vulkanického pole (sv. Čechy) a odhad rychlosti povulkanické eroze

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F07%3A00000333" target="_blank" >RIV/00025798:_____/07:00000333 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Reconstruction of eroded monogenic Strombolian cones of Miocene age: A case study on character of volcanic activity of the Jičín volcanic field (NE Bohemia) and subsequent erosion rates estimation

Popis výsledku v původním jazyce

Relics of solitary volcanic edifices in NE Bohemia were newly interpreted as remnants of scoria cones and their conduits. Volcanic activity in this area occurred in a form of scattered Strombolian eruptions of basanitic magmas mostly ascending along E-Wtrending faults. Nearly all studied volcanoes erupted in Strombolian style mostly not producing lava flows. This volcanic activity took place mainly during Miocene. The lavas of the Kozákov Hill were produced by much younger volcanic activity (6.7-3.5 Ma) and one of the studied locations is supposed to represent their feeder. The older Strombolian cones are weakly affected by weathering processes. On some of the edifices non-welded, poorly stratified scoriae are well preserved, at other sites a basal facies or upper vent facies were exposed by selective erosion. Erosion of Cretaceous marine deposits was intensive during Oligocene, whereas during the last 17 M.y. only some 70m of sediments were eroded.

Název v anglickém jazyce

Reconstruction of eroded monogenic Strombolian cones of Miocene age: A case study on character of volcanic activity of the Jičín volcanic field (NE Bohemia) and subsequent erosion rates estimation

Popis výsledku anglicky

Relics of solitary volcanic edifices in NE Bohemia were newly interpreted as remnants of scoria cones and their conduits. Volcanic activity in this area occurred in a form of scattered Strombolian eruptions of basanitic magmas mostly ascending along E-Wtrending faults. Nearly all studied volcanoes erupted in Strombolian style mostly not producing lava flows. This volcanic activity took place mainly during Miocene. The lavas of the Kozákov Hill were produced by much younger volcanic activity (6.7-3.5 Ma) and one of the studied locations is supposed to represent their feeder. The older Strombolian cones are weakly affected by weathering processes. On some of the edifices non-welded, poorly stratified scoriae are well preserved, at other sites a basal facies or upper vent facies were exposed by selective erosion. Erosion of Cretaceous marine deposits was intensive during Oligocene, whereas during the last 17 M.y. only some 70m of sediments were eroded.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Geosciences

ISSN

1802-6222

e-ISSN

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Svazek periodika

52

Číslo periodika v rámci svazku

3-4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

169-180

Kód UT WoS článku

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EID výsledku v databázi Scopus

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