Science and Engineering at The University of Edinburgh |
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Section Contents
- Introduction
- Geological History
- The Hawse
- Palaeomagnetism
- Sediment rafts
- Vesicles
- Hutton's Section
- Spheroidal weathering
- White sandstone
- Hutton's Rock
- Distorted strata
- Contact details
- Crag and Tail
- The Cats Nick
- Dykes
- Slickensides
- Dessication cracks
- Ripple marks
- Bedding
- The Long Row
- Vent Agglomerate
- Sampsons Ribs
- Geological Map
- Questions
- References
Extras
Tutors only
Samson's Ribs
Samson's Ribs are a good example of columar jointing, often formed in basic lava flows, sills and dykes by ponding and contraction during cooling. The columns are normally hexagonal and perpendicular to the cooling surfaces.