SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Interpretation of deep boreholes G1 (CORSEIS) and AIG 10 (DGLab-3F) (Corinth Gulf, Central Greece)

F Lemeille, M Makanou, Chapoutis, Fourmelis, Rettenmaier, Unkel, Moretti, Micharelli, Guernet, Bourdillon, Muller, Keraudren

Worshop Corinth Rift Laboratory, Aigion, Greece, 03 to 08 june 2003

Document type > *Congrès/colloque

Keywords > earthquakes, rift/fault

Research Unit > IRSN/DEI/SARG/BERSSIN

Authors > LEMEILLE Francis

Publication Date > 06/07/2003

Summary

  Two deep boreholes (205 and 1001 m), performed in the footwall of the Aigion Fault, bring new data on the Holocene and Pleistocene deposits in the western Gulf of Corinth. 14C dating carried out in the Upper part of the borehole Gl, environmental data inferred from microorganisms analyses in borehole G1 and nannoplancton analyses in the lower part of the borehole AIG 10, are not enough to interpret the whole borehole in term of age and of paleogeography.

Based on assumed subsidence rates (slow and fast respectively), two extreme interpretations are proposed. In the first case study (slow subsidence rates), the borehole AIG10 crossed Holocene to old lacustrine deposits (related to Corinth lake before MIS 11 i.e. <405 ka). In the second interpretation, the borehole AIG 10 crossed Holocene to interglacial lacustrine MIS 6e sediments.

The two case studies are discussed with respect to uplift rate in the footwall (since MIS 9a), to constraints from relation between uplift rates and subsidence rates inferred from fault modelling, to Vertical Seismic Profile data (Naville et al., 2003) performed around the borehole AIG 10, to regional paleogeography and to the precise geometry of Aigion Fault.


Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok