Palaeo Glaciofluvial Sediment Systems

Definition

Palaeo-glaciofluvial sediment systems are defined as those that indicate the former presence of glaciofluvial activity but which are not associated with a modern or active glacier.

Introduction

Recognition and analysis of palaeo-glaciofluvial sediment systems provides details concerning the extent and nature of former glaciation. In many areas, glaciofluvial landforms are well preserved, forming distinct indications of both former ice-frontal positions and drainage patterns influenced by glaciation. Palaeo-glaciofluvial features can be both depositional and erosional.

Depositional features

Depositional features include all types of glaciofluvial landforms that can be found adjacent to modern glaciers, including eskers, kames, and outwash plains (also called sandur). In many instances, preservation of landforms has been affected by subsequent erosion. In addition, deposition in the glaciofluvial environment also commonly involves inclusion of blocks of detached glacial ice....