
	play kadir

menü


	=kum

Kum

Vikipedi, özgür ansiklopedi

Git ve: kullan, ara

→ Başlığın diğer anlamları için Kum (İran) sayfasına bakınız.

Kum; silisli kütlelerin, kayaların, doğal etkenlerle parçalanarak ufalanmasından ya da kayaların parçalanmasıyla oluşan, genellikle kuvars esaslı granüler malzemedir.

Çapı 0.06 - 2 mm arasındadır. Daha küçük parçacığı olan, mil ise, 0.0625 mm ile 0.004 mm arasındadır.

Kum, kuru veya doygun halde kohezyonsuzdur, ancak rutubetli halde belirgin bir kohezyonu vardır.

SEM'de çekilmiş kum taneleri

siyah kum ve taş taneleri

Kum kaleleri

Bugün 110 ziyaretçi (134 klik) kişi burdaydı!

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