Petrophysical record of evolution of weakly deformed low-porosity limestone revealed by small-angle neutron scattering, neutron diffraction and AMS study

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00494331" target="_blank" >RIV/61389005:_____/18:00494331 - isvavai.cz</a>

Alternative codes found

RIV/67985530:_____/18:00494331 RIV/67985831:_____/18:00494331 RIV/68407700:21340/18:00324432

Result on the web

<a href="http://dx.doi.org/10.1093/gji/ggy309" target="_blank" >http://dx.doi.org/10.1093/gji/ggy309</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/gji/ggy309" target="_blank" >10.1093/gji/ggy309</a>

Result language

angličtina

Original language name

Petrophysical record of evolution of weakly deformed low-porosity limestone revealed by small-angle neutron scattering, neutron diffraction and AMS study

Original language description

Rock physical and transport properties are affected by many rock features, such as texture, porosity, pore type, pore's shape preferred orientation and pore fluid. In carbonates, porosity and microstructure are complex issues resulting from a variety of depositional, diagenetic and deformation processes. To be able to correctly interpret physical properties of carbonate rocks, it is advantageous to combine studies of rock structure, texture and pore space. The combination of structural analysis, microstructure characterization and anisotropic physical properties evaluation successfully distinguished records of particular processes that formed complex microstructure of the Middle Devonian limestones of the Prague Synform in the Bohemian Massif. The primary sedimentary record is associated with carbonate bioclasts and lithoclasts marked by accessory minerals that have been recorded by the anisotropy of magnetic susceptibility method. The diagenetic stage consists of oriented authigenic quartz grains recognized by neutron diffraction. The weak calcite crystallographic preferred orientation has been interpreted as a result of vertical maximum compressive stress acting during the static recrystallization at the maximum burial stage. The small- and ultrasmall-angle neutron scattering measurements show that very low porosity (similar to 0.2 per cent) of the studied limestones is formed by preferentially oriented microcracks of 1.8-3.1 mu m in size. Their preferred orientation argues for the origin either during the maximum burial stage or at the latest stages of the first regional folding.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2018

Confidentiality

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

Name of the periodical

Geophysical Journal International

ISSN

0956-540X

e-ISSN

—

Volume of the periodical

215

Issue of the periodical within the volume

2

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

895-908

UT code for WoS article

000448789900010

EID of the result in the Scopus database

2-s2.0-85054833925