Magnetic fabric transposition in folded granite sills in Variscan orogenic wedge

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F17%3A00473606" target="_blank" >RIV/67985530:_____/17:00473606 - isvavai.cz</a>

Alternative codes found

RIV/00025798:_____/17:00000017

Result on the web

<a href="http://dx.doi.org/10.1016/j.jsg.2016.11.007" target="_blank" >http://dx.doi.org/10.1016/j.jsg.2016.11.007</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jsg.2016.11.007" target="_blank" >10.1016/j.jsg.2016.11.007</a>

Result language

angličtina

Original language name

Magnetic fabric transposition in folded granite sills in Variscan orogenic wedge

Original language description

New approach involving evaluation of anisotropy of magnetic susceptibility (AMS) data in stereoplots and Jelinek's Pj-T space, Vollmer's eigenvalue and microstructural analyses is proposed to discriminate between homogeneous and superposed deformation in granites. This method is used to decipher the internal AMS fabric and microstructural evolution of a folded array of granitic sills. The studied major sill shows a fabric and microstructural zonality marked by submagmatic and high-temperature Type I planar-linear fabric developed at sill margins, and the transpositional Type II subsolidus fabrics that formed at high to medium temperature deformation in the sill core. While Type I fabric is associated with dip slip magnetic lineations, Type II subsolidus fabrics are marked by subhorizontal magnetic lineations striking parallel to the long axis of the sill. The structural reconstruction of the fabrics in the granite and the host rocks as well as new U-Pb zircon ages suggest coeval emplacement of horizontal and vertical sills accounting for significant weakening of the host rock magma multilayer. The model of folding of such multilayer and extrusion of residual magma parallel to axial planes is discussed with respect to structural record in other syn-contractional granite sill arrays forming sheeted plutons worldwide.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GA14-15632S" target="_blank" >GA14-15632S: Melt migration and coupled rock deformation dynamics in orogenic lower crust</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Structural Geology

ISSN

0191-8141

e-ISSN

—

Volume of the periodical

94

Issue of the periodical within the volume

January

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

166-183

UT code for WoS article

000393004500011

EID of the result in the Scopus database

2-s2.0-85008698682