Слово встречается в следующем контексте:

"Levee-overbank – this facies differs from the above in being characterized by sand richheterolithics – on a decimetre to metre-scale – commonly found in association with upward fining channels sands (see below) and grading upward into the facies described above – forming ‘classic’ meandering log-motifs."

Заранее спасибо