Difference between revisions of "Glacial Geomorphology"
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<strong>Location:</strong> Keskdale, Newlands Valley | <strong>Location:</strong> Keskdale, Newlands Valley | ||
| − | = Instructions | + | == Instructions |
| − | ... | + | |
| + | Drive to Newlands Hause (free parking) to observe the moraine sequence at Keskadale dated by [http://www.mangeogsoc.org.uk/pdfs/hughes_12_1.pdf Hughes et al. 2012]. | ||
| + | |||
| + | If visibility is good, begin by walking up Knott Rigg (~30 mins climb). Views down to the Keskadale cirque; a good opportunity to introduce glacial sequences, erosional and depositional landforms etc. Introduction to glacial geomorphological mapping, but also good examples of non-glacial processes e.g. fluvial incision within the valley, scree below Wandope (north). | ||
| + | |||
| + | Return to the road (~20 mins?) and drop down to the lower moraine (~10 mins). Discussion of moraine sedimentology - stratigraphy revealed by fluvial incision (clast analysis?). | ||
| + | |||
| + | Along the moraine to locate boulders dated using 10Be - light discussion of cosmogenic dating (boulder transport history, rolling, erosion, sediment?). Opportunity for relative dating (Schmidt hammer) but relatively few boulders. With ~10-15 students, take 4 Schmidt hammers, split into groups of 3-4 and get them to sample some of the boulders. What factors influence the measurements? Mention the kit available in the department; opportunities for dissertations. | ||
| + | |||
| + | If time available, walk up to High Hole and inspect the ice-moulded bedrock. Discussion of glacial erosion (quarrying, abrasian, striations etc) and glacier formation (nivation, snowpatches, topography shielding, snow-blow etc). | ||
| + | |||
| + | Return to the minibus and the centre. | ||
= Equipment = | = Equipment = | ||
Revision as of 12:40, 17 September 2021
Information
Created By: Phil Hughes
Currently Used By: Phil Hughes, Chris Darvill, Anna Hughes, Matt Tomkins
Location: Keskdale, Newlands Valley
== Instructions
Drive to Newlands Hause (free parking) to observe the moraine sequence at Keskadale dated by Hughes et al. 2012.
If visibility is good, begin by walking up Knott Rigg (~30 mins climb). Views down to the Keskadale cirque; a good opportunity to introduce glacial sequences, erosional and depositional landforms etc. Introduction to glacial geomorphological mapping, but also good examples of non-glacial processes e.g. fluvial incision within the valley, scree below Wandope (north).
Return to the road (~20 mins?) and drop down to the lower moraine (~10 mins). Discussion of moraine sedimentology - stratigraphy revealed by fluvial incision (clast analysis?).
Along the moraine to locate boulders dated using 10Be - light discussion of cosmogenic dating (boulder transport history, rolling, erosion, sediment?). Opportunity for relative dating (Schmidt hammer) but relatively few boulders. With ~10-15 students, take 4 Schmidt hammers, split into groups of 3-4 and get them to sample some of the boulders. What factors influence the measurements? Mention the kit available in the department; opportunities for dissertations.
If time available, walk up to High Hole and inspect the ice-moulded bedrock. Discussion of glacial erosion (quarrying, abrasian, striations etc) and glacier formation (nivation, snowpatches, topography shielding, snow-blow etc).
Return to the minibus and the centre.
Equipment
Each student should have:
- ...
Staff require:
- ...
Handouts
- ...
