Here's a breakdown:

* Glacial drift is a collective term encompassing all the materials transported and deposited by glaciers. This includes:

* Till: Unsorted, unstratified sediment directly deposited by the glacier.

* Outwash: Sorted, stratified sediment deposited by meltwater streams flowing from a glacier.

* Glaciolacustrine sediments: Sediments deposited in glacial lakes.

* Glaciofluvial sediments: Sediments deposited by glacial meltwater streams.

* Glacial erratics: Large boulders transported and deposited by glaciers far from their source.

So, "glacial drift" is a broad term that encompasses the diverse range of sediments associated with glacial activity.