Boulder
Query URLs
https://term.museum-digital.de/md-de/tag/18245
- Note
- "In geology (Udden–Wentworth scale), a boulder is a rock fragment with size greater than 256 millimetres (10.1 in) in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive.
In common usage, a boulder is too large for a person to move. Smaller boulders are usually just called rocks (American English) or stones (In British English a rock is larger than a boulder).[disputed – discuss] The word boulder is short for boulder stone, from Middle English bulderston or Swedish bullersten.
In places covered by ice sheets during Ice Ages, such as Scandinavia, northern North America, and Siberia, glacial erratics are common. Erratics are boulders picked up by ice sheets during their advance, and deposited when they melt. They are called "erratic" because they typically are of a different rock type than the bedrock on which they are deposited. One such boulder is used as the pedestal of the Bronze Horseman in Saint Petersburg, Russia." - (en.wikipedia.org 03.08.2021)
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Harzgebirgsfluss
Mitten durch einen...
Object information
Image: Harzmuseum Wernigerode - CC BY-NC-SA -
Nebel ziehen durch den Harz
Vor einem dunklen Fichtenwald...
Object information
Image: Harzmuseum Wernigerode - CC BY-NC-SA -
Treppe im Burggemäuer
Eine in Felsblöcke eingebaute...
Object information
Image: Stiftung Fürst-Pückler-Museum Park und Schloss Branitz - CC BY-NC-SA -
Forum Romanum I
Das Bild zeigt einen wie ein...
Object information
Image: Winckelmann-Museum Stendal - CC BY-NC-SA -
Felsgruppe im Harz, 1887
Auf einer sonnenbeschienenen...
Object information
Image: Harzmuseum Wernigerode - CC BY-NC-SA
References
Synonyms
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