Complex sentence: Such cliffs are white if the soil has a high content of chalk (like "the White cliffs of Dover"), but in Scania (and parts of Denmark) the soil is more sandy, and the cliffs are yellow instead.
Split into simpler sentences: Such cliffs are white if the soil has a high content of chalk. Typically like White Cliffs of Dover, but in Scania and parts of Denmark the soil is usually more sandy, and the cliffs then becomes yellow instead.