Thesis
New insights into Cenozoic Silicon cycling in the Southern Ocean: refined application of silicon isotope ratios in biogenic opal
- Abstract:
-
The marine silicon and carbon cycles are intrinsically linked by a unique group of primary producers; the diatoms. These siliceous-walled phytoplankton play a significant role in carbon export, making them a critical component of the global biological carbon pump with the power to affect climatic change. In this thesis, the silicon isotope composition (δ30Si) preserved in diatom opal is used together with the δ30Si of sponge opal, a powerful new proxy for deepwater silicic acid concentrati...
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Authors
Contributors
+ Rickaby, R
Division:
MPLS
Department:
Earth Sciences
Role:
Supervisor
+ Halliday, A
Division:
MPLS
Department:
Earth Sciences
Role:
Supervisor
Funding
Bibliographic Details
- Publication date:
- 2017
- Type of award:
- DPhil
- Level of award:
- Doctoral
- Awarding institution:
- University of Oxford
Item Description
- Language:
- English
- Keywords:
- Subjects:
- UUID:
-
uuid:3804252d-c325-43bb-afae-85e3247293e1
- Local pid:
- ora:8664
- Deposit date:
- 2014-06-20
Terms of use
- Copyright holder:
- Egan, K; Katherine E Egan
- Copyright date:
- 2012
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