{"id":1280,"date":"2025-07-10T12:08:35","date_gmt":"2025-07-10T12:08:35","guid":{"rendered":"https:\/\/icewalk.it\/landschaft\/"},"modified":"2026-01-28T15:37:56","modified_gmt":"2026-01-28T15:37:56","slug":"landschaft","status":"publish","type":"page","link":"https:\/\/icewalk.it\/de\/landschaft\/","title":{"rendered":"Landschaft"},"content":{"rendered":"

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Landschaft im Wandel<\/b><\/span><\/h1>\n

 <\/p>\n

Von den Gletschern zu den Blockgletschern<\/b><\/span><\/h3>\n

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Die weiten Senken und glattgeschliffenen Felsen im Bereich des Langsees erz\u00e4hlen von der enormen Kraft der Gletscher, die w\u00e4hrend der letzten Eiszeit das gesamte Relief geformt haben. Typisch sind Drumlins<\/b> \u2013 tropfenf\u00f6rmige Felsr\u00fccken, die genau in der Flie\u00dfrichtung des Eises ausgerichtet sind.<\/span><\/p>\n

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Nach dem R\u00fcckzug der Gletscher<\/span> am Ende der letzten Eiszeit trat ein neuer Akteur in den Vordergrund: der Permafrost<\/b><\/span>. Frost-Tau-Wechsel, Regen, Schnee und Temperaturunterschiede<\/span> haben die obersten Gesteinsschichten abgetragen und zerkleinert<\/span>.<\/span> <\/span>So entstanden die ersten\u00a0Blockgletscher<\/b>.<\/span><\/p>\n

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Am Hang oberhalb des Langsees erkennt man heute mehrere \u00fcbereinanderliegende Generationen:
die \u00e4lteren und inaktiven Blockgletscher haben den Talboden erreicht und wirken flacher und stabiler;
die j\u00fcngeren und aktiven liegen dar\u00fcber, mit steilen, blockreichen Stirnfronten, die den andauernden Flie\u00dfprozess dokumentieren.<\/p>\n

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Mithilfe von Radiokarbondatierungen (C14) der B\u00f6den unterhalb dieser Schuttstr\u00f6me konnte ihr Alter bestimmt werden: etwa 12.400 Jahre<\/b> f\u00fcr die unteren, rund 5.000 Jahre<\/b> f\u00fcr die oberen Blockgletscher. Sie sind eindrucksvolle Zeugen der alpinen Landschaftsentwicklung seit dem Ende der Eiszeiten.<\/span><\/h2>\n

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Tillit1<\/sup><\/h6>\n
1 Ein Mor\u00e4nenkonglomerat mit chaotischer Struktur aus einem fluvioglazialen Milieu. Es enth\u00e4lt facettierte und gekritzte Ger\u00f6lle, die heterogen und von unterschiedlicher Gr\u00f6\u00dfe in eine tonig-schluffige Matrix eingebettet sind. <\/strong><\/h6>\n
<\/h6>\n
Aus dem Egesen-Stadium 2<\/sup><\/h6>\n
2 Letzter K\u00e4lteeinbruch am Ende der letzten Eiszeit, bekannt als J\u00fcngere Dryaszeit oder \u2013 in Bezug auf den Gletschervorsto\u00df \u2013 als Egesen-Stadium. <\/strong><\/h6>\n

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An den hervorgehobenen Punkten wurden Grabungen vorgenommen,
um den Aufbau der Gesteinsmassen zu bestimmen.<\/span><\/h6>\n

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Stratigraphische Untersuchung der Blockgletscher<\/span><\/h6>\n

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