Skip to main content

Conductivity response to intraplate deformation: Evidence for metamorphic devolatilization and crustal‐scale fluid focusing

Dates

Publication Date

Citation

Stephan Thiel, Paul Soeffky, Lars Krieger, Klaus Regenauer-Lieb, Jared Peacock, and Graham Heinson, 2016, Conductivity response to intraplate deformation: Evidence for metamorphic devolatilization and crustal‐scale fluid focusing: Geophysical Research Letters, v. 43, iss. 21.

Summary

We present two‐dimensional electrical resistivity models of two 40 km magnetotelluric (MT) profiles across the Frome Embayment to the east of the northern Flinders Ranges, South Australia. The lower crust shows low resistivity of 10 Ω m at around 30 km depth. The middle crust is dominated by resistive (>1000 Ω m) basement rocks underlying the Flinders Ranges. Adjacent to the ranges, conductive lower crust is connected to vertical zones of higher conductivity extending to just below the brittle‐ductile transition at ∼10 km depth. The conductive zones narrow in the brittle upper crust and dip at roughly 45° beneath the surface. Zones of enhanced conductivity coincide with higher strain due to topographic loading and sparse seismicity. [...]

Contacts

Thumbnail
Thumbnail

Tags

Categories
Publication
Types

Additional Information

Identifiers

Type Scheme Key
local-index unknown 70201568
local-pk unknown 70201568
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1002/2016GL071351
series unknown Geophysical Research Letters

Citation Extension

citationTypeArticle
journalGeophysical Research Letters
languageEnglish
parts
typevolume
value43
typeissue
value21

Item Actions

View Item as ...

Save Item as ...

View Item...