1
Q
What are concretions?
A
- Lumps of sediment bound together by calcite cement
- formed from dead sea animals
- 7 tonnes
- 2m in diameter
- formed over 4 million years
- exposed due to erosion of surrounding cliff
2
Q
How are Moeraki boulders eroded?
A
- Exposed when weak cliff face is eroded
- Deposited on beach
- Exposed to marine processes
- Exploit fragmented external structure
- Break apart boulders
- Crystallised core exposed
8GE01 - Coasts
flashcards
Decks in class (33)
# Cards
-
1.18
-
1.29
-
1.3(Spec2) - Cork5
-
1.4(Spec2) - Concordant Morphology9
-
1.54
-
1.6(Spec2) - Submergent Coastlines + Sognefjorden11
-
1.72
-
2.113
-
2.218
-
2.39
-
2.44
-
2.511
-
2.6(Spec1)7
-
2.72
-
2.8(Spec2) - Mass Movement + Barton18
-
2.95
-
2.10 - W Africa8
-
2.113
-
2.129
-
2.13 - Trinidad And Tobago16
-
3.2 - Sediment Cells13
-
3.3(Spec2) - Deposition + Distinctive Landforms16
-
3.46
-
3.514
-
3.6 - New York11
-
3.7 - Bangladesh13
-
3.8 - Kiribati8
-
3.9 - Netherlands17
-
4.1(Spec2) - Portballintrae + Lyme Regis25
-
4.6 - Chittagong7
-
4.37
-
4.5 - Slapton Management13
-
4.4 - ICZM7
