RochElec : Geoelectrical investigations on the Rochechouart impact structure (France)

The Rochelec dataset gathers petrophysical and geoelectrical data from the Rochechouart impact structure (France).

Since 2017, about 10 geophysical field campaigns were performed on this eroded structure. Among other techniques, geophysical downhole logging, electrical resistivity tomography and controlled-source audiomagnetotelluric data were acquired.

In parallel, we measured the electrical resistivity and porosity of some core samples coming from drillings performed in fall 2017 at several sites of the impact structure.

These multiscale electric data allows to better characterize the different lithologies outside the drilling sites, and their associated geometry.

* Citation of this dataset

Quesnel, Y., Sailhac, P., Lofi, J., Lambert, P., Rochette, P., Uehara, M. & Camerlynck, C. (2021). RochElec : Geoelectrical investigations on the Rochechouart impact structure (France) [Data set]. CEREGE UMR 7330

CNRS. https://doi.org/10.34930/BE0549D1-E876-49C5-B07F-BF04D398B25E

* Publications linked with the dataset:

Quesnel, Y., Sailhac, P., Lofi, J., Lambert, P., Rochette, P., Uehara, M. & Camerlynck, C. (2021). Rochechouart impact structure, France. Geochemistry, Geophysics, Geosystems, 22, e2021GC010036, https://doi.org/10.1029/2021GC010036

Simple

Date ( Publication )
2021-04-02T08:00:00
Identifier
http://dataset.osupytheas.fr/geonetwork/srv/resourcesbe0549d1-e876-49c5-b07f-bf04d398b25e
Purpose
The Rochelec dataset gathers petrophysical and geoelectrical data from the Rochechouart impact structure (France).
Status
Completed
Point of contact
  CEREGE UMR 7330 CNRS - Yoann Quesnel ( )
Maintenance and update frequency
As needed
Principal investigator
  CEREGE UMR 7330 CNRS - Yoann Quesnel
GEMET - Concepts, version 2.4 ( Theme )
  • geology
  • geophysics
GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Geology
Continents, countries, sea regions of the world. ( Place )
  • France
Keywords ( Theme )
  • geophysics
  • Rochechouart impact structure
  • electrical properties 
Access constraints
Copyright
Use constraints
otherRestictions
Spatial representation type
Vector
Denominator
5000
Metadata language
en
Character set
UTF8
Topic category
  • Environment
  • Geoscientific information
Begin date
2017-11-01
End date
2021-03-25
Description
France
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Supplemental Information
Rochechouart, France
Reference system identifier
WGS 1984
Distribution format
  • CSV files ( 1.0 )

Owner
  CEREGE UMR 7330 CNRS - yoann quesnel
OnLine resource
Data access ( WWW:LINK-1.0-http--link )
OnLine resource
DOI digital object identifier ( DOI )

Citation

Quesnel, Y. (2021). RochElec : Geoelectrical investigations on the Rochechouart impact structure (France) [Data set]. CEREGE UMR 7330 CNRS. https://doi.org/10.34930/BE0549D1-E876-49C5-B07F-BF04D398B25E

Hierarchy level
Dataset
Statement

Electrical resistivity measurements were performed with different methods and scales. First, we used downhole logging tools (including EM51 and DLL3) in most of the 2017 drill holes.

Complementary electrical resistivity measurements were done on some of the core samples. Electrical resistivity tomography (ERT) profiles were performed using an ABEM Lund Imaging System at and around each drilling site.

Lastly, controlled-source audiomagnetotelluric (CS-AMT) observations were acquired using Phoenix T-3 with RXU-TMR and V8 receivers at greater scale to investigate the lateral and vertical electrical properties of the Rochechouart impactite and target formations.
File identifier
be0549d1-e876-49c5-b07f-bf04d398b25e XML
Metadata language
en
Character set
UTF8
Hierarchy level
Dataset
Hierarchy level name
dataset
Date stamp
2021-08-30T12:18:18
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Custodian
  CEREGE UMR 7330 CNRS - Yoann Quesnel ( )
 
 

Overviews

overview
electrical resistivity tomography (ERT) profile installed nearby the SC2 drill holes in Chassenon (NW of the Rochechouart impact structure ; view towards North). This grazing field was a Gallo-Roman quarry, where they extracted blocks of the melt-bearing impactite formation on top of the Chassenon butte.

Spatial extent

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Keywords

Rochechouart impact structure electrical properties  geophysics
GEMET - Concepts, version 2.4
geology geophysics
GEMET - INSPIRE themes, version 1.0
Geology

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Associated resources

Not available