As stated above, frazil forms into pans on the surface of rivers.
Water hyacinth runners grow tens of centimetres per day, spreading over the surface of rivers and wetlands.
Surface waters of river Cauvery in Tamil Nadu tested in 2010 revealed concentrations of cadmium, chromium, copper, iron, nickel, lead, zinc and mercury within the prescribed limits (Krishnamoorthy and Nagarajan 2013).
The river Ghaghara draining the area has developed a second geomorphic unit, the low-lying floodplains the Khadar surface of the river.
The still surface of the river so perfectly mirrored the cliffs and sky that it was hard, at a glance, to know where the river ended and the cliffs began.
The surface of the river was unbroken.
There is not a single flat surface other than the surface of the river".
From the surface of the river, there is no sign that anything has gone wrong.
They swooped around, slicing past our heads, skimming the surface of the river.
Then the Holy Spirit that had infused that twist of undissolved fertilizer on the surface of the river vanished.
Rickshaws swerve, the police watch and pilgrims file past unconcerned, eyes only for the slick surface of the river itself.
