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668 (0,137s) •

Project

Investigation of the texture of rocks by ultrasonic waves and neutron diffraction (GA205/97/0905)

between the texture of rocks and their physical properties, especially the kinematic underconfining pressure will also be studied. The proposed approach is based on texture passing trough the rock sample. The inve...

DB - Geologie a mineralogie

  • 1997 - 1999
    • •
  • 2 927 tis. Kč
    • •
  • 1 599 tis. Kč
    • •
  • GA ČR
Project

The role of rock anisotropy in hydraulic fracturing through acoustic emission (GA22-00580S)

to a better understanding of the role of the rock texture/crack anisotropy on the HF. of the hydraulic fracturing (HF) has been investigated. The texture anisotropy and/or crack anisotropy have a great influence over the e...

Environmental and geological engineering, geotechnics

  • 2022 - 2024
    • •
  • 6 407 tis. Kč
    • •
  • 6 407 tis. Kč
    • •
  • GA ČR
Project

Ocelli, variolae and related textures their genetic types and consequences for interpretation of dyke and some plutonic rocks (GA205/01/1127)

Many mafic igneous rocks display peculiar centric or spheroidal textures (structures) of various types (ocelli, variolae, globulae etc.). Their origin is ascribed to diverse petrogenetic processes (H2O- or CO2-dominated fluid unmixi...

DB - Geologie a mineralogie

  • 2001 - 2003
    • •
  • 445 tis. Kč
    • •
  • 259 tis. Kč
    • •
  • GA ČR
Project

Elastic anisotropy of mantle rocks from the Bohemian Massif (GP205/01/P020)

The theme of the proposal is "Elastic anisotropy of mantle rocks from rocks, namely eclogites, pyroxenites, Iherzolites is combined with acoustic sounding under hydrostatic pressure up to 400 MPa to reveal rock elastic anis...

DC - Seismologie, vulkanologie a struktura Země

  • 2001 - 2003
    • •
  • 999 tis. Kč
    • •
  • 474 tis. Kč
    • •
  • GA ČR
Project

Neutron texture analysis of carbonates and gabbros (GA205/08/0767)

Crystallographic preferred orientation of crystalline rocks will be investigated by neutron diffraction texture analysis and co-related to a number of physical of rock samples - carbonates and meta-gabbros - taken so as to ...

DB - Geologie a mineralogie

  • 2008 - 2010
    • •
  • 1 606 tis. Kč
    • •
  • 1 606 tis. Kč
    • •
  • GA ČR
Project

Rock Textures and Mineral Zoning Insights into Open System Processes in Granitoides (GA14-13600S)

-equilibrium rock textures), and methods of local geochronology (U/Pb by LA-ICP-MSAim of this project is identification of the open system-processes in granitic rocks and reconstruction of p-T-x conditions before, during, a...

DB - Geologie a mineralogie

  • 2014 - 2017
    • •
  • 6 059 tis. Kč
    • •
  • 6 059 tis. Kč
    • •
  • GA ČR
Project

The Effect of Anisotropy and Mineral Composition on Phase Transformation and Thermal Expansion (GP105/07/P416)

The effect of temperature on the resultant rock properties seems to be a quite difficult problem significantly effected by rock composition and structure. Temperature expansionwith following appearance of tensions and cracks in mine...

DH - Báňský průmysl včetně těžby a zpracování uhlí

  • 2007 - 2009
    • •
  • 551 tis. Kč
    • •
  • 551 tis. Kč
    • •
  • GA ČR
Project

Transport parameters and durability of porous rocks (GA14-17207S)

are dependent on properties of the rock - geological character, mechanical, textural and transport properties etc. Selected typical rocks will be characterized includingSedimentary porous rocks (sandstones, marlst...

JJ - Ostatní materiály

  • 2014 - 2016
    • •
  • 3 200 tis. Kč
    • •
  • 3 200 tis. Kč
    • •
  • GA ČR
Project

Mineral and textural signatures recording pre-exhumation and pre-collision history of the HP/UHPM rocks in orogenic zone (GA13-06958S)

Recent petrological and microstructural analysis of metamorphic rocks in the Bohemian Massif indicates primarily, a greater extent of HP-UHPM rocks that were facies rocks. Whilst some HP-UHPM lithologies preserve evidence o...

DB - Geologie a mineralogie

  • 2013 - 2016
    • •
  • 4 652 tis. Kč
    • •
  • 4 652 tis. Kč
    • •
  • GA ČR
Project

Influence of textural and structural features on failure of transversely isotropic rocks examined using 4D X-ray computed tomography (GA23-05128S)

Rock microstructure, together with the fabric anisotropy, significantly isotropic rocks. Knowledge of the rock failure mechanisms is necessary in solving will be used in the project to monitor changes in the rock m...

Environmental and geological engineering, geotechnics

  • 2023 - 2025
    • •
  • 7 109 tis. Kč
    • •
  • 7 109 tis. Kč
    • •
  • GA ČR
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