OSX-2006 - Sediment corers

Question 1

What are the types of corers?

Answer 1

• Gravity corers
• Krasten corer (type of gravity corer)
• Multi corer
• Piston corer

Question 2

What are the advantages of a gravity corer?

Answer 2

• Easy to use
• Deployable in rough areas
• Gives verticle structure
• Suitable for palaeo-studies

Question 3

What are the disadvantages of a gravity corer?

Answer 3

• Smearing

- Compaction

Question 4

What are the advantages of the krasten corer?

Answer 4

• Gives verticle structure
• Large volumeof sediment
• Suitable for palaeo-studies

Question 5

What are the disadvantages of the krasten corer?

Answer 5

• Linear-less recovery
• Need to place horizontally for sub-sampling
• May cause slumping
• Needs good sea conditions

Question 6

What are the advantages of the multi-corer?

Answer 6

• Large volumes of sediment collected
• Gives vertical structure
• Suitable for many different applications

Question 7

What are the disadvantages of the multi-corer?

Answer 7

• Mis fires in rough seas

- Large bow wave