Implications of geomorphological research for recent and prehistoric avalanches and related hazards at Huascaran, Peru

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F09%3A00014311" target="_blank" >RIV/00216208:11320/09:00014311 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985891:_____/09:00336510 RIV/00216208:11310/09:00014311

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=PBODTx-enC" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=PBODTx-enC</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11069-008-9330-7" target="_blank" >10.1007/s11069-008-9330-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Implications of geomorphological research for recent and prehistoric avalanches and related hazards at Huascaran, Peru

Popis výsledku v původním jazyce

Article gives new evidences for prehistoric rock debris avalanche, its magnitude and related hazard in the area of the Yungay city bellow Huascarán, Peru. Detailed research of superficial deposits below the northern peak of Huascaran (Cordillera Blanca) provides new information on the limits of a paleo-avalanche originating from this mountain. Geomorphological mapping of the sediments identified glacial deposits, deposits from historical rock-debris avalanches and huge boulders from a paleo-avalanche. Schmidt Hammer rock-hardness tests were used to distinguish between the several generations of rock-debris avalanches, but largely failed to distinguish between the much older moraine and the paleo-avalanche sediments. Thus, only the field geomorphological mapping proved to be reliable for identifying the limits of the paleo-avalanche. The limits identified as granite boulders deposited over volcanic rocks were found to extend 30 m further up the opposite valley slope than previously had been mapped. This larger extent implies a greater volume and/or greater mobility for the prehistoric event.

Název v anglickém jazyce

Implications of geomorphological research for recent and prehistoric avalanches and related hazards at Huascaran, Peru

Popis výsledku anglicky

Article gives new evidences for prehistoric rock debris avalanche, its magnitude and related hazard in the area of the Yungay city bellow Huascarán, Peru. Detailed research of superficial deposits below the northern peak of Huascaran (Cordillera Blanca) provides new information on the limits of a paleo-avalanche originating from this mountain. Geomorphological mapping of the sediments identified glacial deposits, deposits from historical rock-debris avalanches and huge boulders from a paleo-avalanche. Schmidt Hammer rock-hardness tests were used to distinguish between the several generations of rock-debris avalanches, but largely failed to distinguish between the much older moraine and the paleo-avalanche sediments. Thus, only the field geomorphological mapping proved to be reliable for identifying the limits of the paleo-avalanche. The limits identified as granite boulders deposited over volcanic rocks were found to extend 30 m further up the opposite valley slope than previously had been mapped. This larger extent implies a greater volume and/or greater mobility for the prehistoric event.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/LC06024" target="_blank" >LC06024: Centrum Jaroslava Hájka pro teoretickou a aplikovanou statistiku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Natural Hazards

ISSN

0921-030X

e-ISSN

—

Svazek periodika

50

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

193-209

Kód UT WoS článku

000266831100014

EID výsledku v databázi Scopus

2-s2.0-67649411666