
For example, black ice is of high density and bubble free; dark layers indicate the presence of rock materials derived from the base of the parent glacier. (via Picture of the Day: The Black Iceberg «TwistedSifter)
Sarah JamisonPretty!

For example, black ice is of high density and bubble free; dark layers indicate the presence of rock materials derived from the base of the parent glacier. (via Picture of the Day: The Black Iceberg «TwistedSifter)
Sarah JamisonFor Chez!