Here's a breakdown:
* Drift: This is a broad term for any sediment transported and deposited by a glacier.
* Glacial Drift: This specifically refers to the sediment deposited by a glacier.
Glacial drift can be further categorized into two main types:
* Till: Unstratified and unsorted glacial sediment deposited directly by the glacier's ice.
* Outwash: Stratified and sorted glacial sediment deposited by meltwater flowing from a glacier.
Let me know if you'd like more information about till or outwash!