glacial erratics معنى"glacial erratics" أمثلة على "glacial" معنى "glacial" معنى "fluvio-glacial" معنى "glacial deposits" معنى "glacial erratic" معنى "glacial flour" معنى "glacial ice" معنى "glacial iceberg" معنى "glacial lake" معنى "glacial lakes" معنى "glacial landform" معنى "glacial landforms" معنى "glacial period" معنى "glacial phase" معنى "glacial records" معنى "glacial refuge" معنى "glacial varve" معنى "riegel (glacial)" معنى "blue ice (glacial)" معنى "glacial erosion landforms" معنى "glacial lake outburst flood" معنى "glacial till soils" معنى "last glacial maximum" معنى "last glacial period" معنى "late glacial interstadial" معنى أمثلة Although value was placed on especially high guardian stones, in general only glacial erratics were used that had a good surface on which to stand and therefore guaranteed stability.
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