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IODP Expedition 359 Projects

In 2015, the IODP Expedition 359 leg took place in the Indian Ocean near the Maldives. Projects based on this expedition include: documenting the drowning of carbonate platforms in the transition from sealevel controlled to current dominated sedimentation in the Maldives carbonate system, descriptions of a previously unknown contourite fan, petrophysical analysis of the formation of secondary porosity in the marine system, and testing the Extended Biot Theory in carbonates. 

For more information on the IDOP Expedition 359 click on the link below: 

https://iodp.tamu.edu/scienceops/expeditions/maldives_monsoon.html

Current Projects



Projects from IODP Expedition 359 - Maldives Platform and Current Deposits (Year 2)

Eberli_CSL2017_maldives_prosp

Project Media
     
EberliG_C...ives.pdf
Media Type:Media Type
File Size:248KB

 

Investigators: Gregor P. Eberli, Peter K. Swart, Anna H.M. Ling, Emma Giddens, Christian Betzler, and Thomas Lüdmann

Project Objectives:

  • Document the drowning of carbonate platforms in the transition from sealevel controlled to current dominated sedimentation in the Maldives carbonate system.
  • Comprehensively describe the hitherto unknown carbonate contourite fan in the Kardiva Channel.
  • Give new insights into the formation of secondary porosity in the marine realm.
  • Test the Extended Biot Theory in carbonates.

 

 

 



     

Petrophysical Calibration of the Coarse-Grained Carbonate Drift Fan, Maldives

GiddensE_CSL2017_maldives_prosp2

Project Media
     
GiddensE_...ctus.pdf
Media Type:Media Type
File Size:3MB

 

Investigators: Emma Giddens, Gregor P. Eberli, Luuk Kleipool, Ralf J. Weger, Christian Betzler, Thomas Lüdmann, and Angela Slagle

Project Objectives:

  • Comprehensively describe the carbonate drift fan in the Kardiva Channel that includes the sedimentologic characteristics, petrophysical properties, and the seismic signature.
  • Perform laboratory measurements of porosity, permeability, velocity, and resistivity and relate these properties to the facies, diagenesis, and pore structure of each plug.
  • Correlate lithology and petrophysical properties to logs and seismic data for a thorough calibration of the seismic and log facies of the drift fan.
  • Compare the geometry and sedimentological and petrophysical characteristics of this drift fan with a Cretaceous drift fan in the Maiella Mountains.



     

Influence of Ocean Currents on Miocene Carbonate Platform Drowning

LingA_CSL2017_maldives_prosp

Project Media
     
LingA_CSL...ctus.pdf
Media Type:Media Type
File Size:2MB

 

Investigators: Anna H.M. Ling, Gregor P. Eberli, Christian Betzler, and IODP Expedition 359 Scientists

Project Objectives:

  • Test the hypothesis that ocean currents are a major contributor towards carbonate platform drowning at the Kardiva Carbonate Platform, Maldives and Miami Terrace, Florida, USA.



     

The Formation of Celestine: A Possible Mechanism for the Creation of Porosity in Platform Derived Sediments

SwartP_CSL2017_celestine_prosp

Project Media
     
SwartP_CS...tine.pdf
Media Type:Media Type
File Size:509KB

 

Investigators: Peter K. Swart, Greta J. Mackenzie, and Gregor P. Eberli

Project Objectives:

  • To understand the importance of celestine formation on the occlusion and preservation of porosity.

  • To understand the influence of celestine upon the pore water geochemistry during and subsequent to its formation.



     

Testing the Extended Biot Theory in Carbonates of the Maldives

WegerR_CSL2017_biot_prosp

Project Media
     
WegerR_CS...biot.pdf
Media Type:Media Type
File Size:492KB

 

Investigators: Ralf J. Weger, Emma Giddens, Gregor P. Eberli, Christian Betzler, Thomas Lüdmann, and Angela Slagle

Project Objectives:

  • Test the extended Biot Theory on core and logs from IODP Site U1467 by:

Calculating the pore shape parameter γk from laboratory measurements of porosity and p-wave and shear wave velocity.

Assessing the pore structure with digital image analysis and relating it to the theoretical pore shape parameter γk.

Correlating γk to permeability.



     

The Origin of Organic Rich Layers in the Maldives

SwartP_CSL2017_maldives_prosp

Project Media
     
SwartP_CS...ives.pdf
Media Type:Media Type
File Size:220KB

 

Investigators: Peter K. Swart, Christian Betzler, Gregor P. Eberli, and the Shipboard Party of IODP Expedition 359

Project Objectives:

  • To understand the origin of organic-rich layers, some containing over 5 % organic material, alternating with organic poor layers within an 80 m thick interval in a shallow, open ocean setting.



     
 

 

 

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