Suche
Anzeige der Dokumente 1-10 von 111
Microfabrics and textures of quartzites of the Indiavaí- Lucialva shear zone, SW Amazonian Craton: preliminary conclusions
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
The purpose of this contribution is to
present preliminary results regarding
the kinematics and deformation conditions
of the Indiavaí-Lucialva Shear
Zone, based on the analysis of the
texture and microfabrics of ...
Geowissenschaftliche Bedeutung von Mikrorissen in Kristallingesteinen
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
In Kristallingesteinen (Magmatite, Metamorphite,
Migmatite) sind Mikrorisse
allgegenwärtig. Ihre Entstehung ist auf
unterschiedliche treibende Kräfte (i.W.
Tektonik, Thermik) und Mechanismen
wie z.B. volumetrische Verformung ...
The effect of water, temperature and strain rate on the dislocation creep microstructure, recystallized grain size and flow stress of quartz
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Since the work of Griggs & Blacic (1965)
it is well known that the crystal plastic
flow strength of ‘wet’ quartz samples is
much lower than that of ‘dry’ samples
deformed at the same conditions, and
the general effect of ...
Rock fabrics in palaeoweathering profiles below basement-cover interfaces (AMS-study on drill cores from the Caledonian margin, Central Sweden)
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Basement-cover-interfaces are important
crustal boundaries. In many
cases they act as detachment horizons.
Criteria like pre-erosional basement
characteristics, intensity of palaeoweathering
and post-erosional processes
during ...
Fluidtransport entlang von Störungen und Klüften im Gebiet des Hengill-Vulkans, SW-Island
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Das Holozäne Hengill-Vulkansystem
liegt in der aktiven Westvulkanischen
Zone in Südwestisland. Es beinhaltet
den Hengill-Zentralvulkan, der sich südlich
des Sees Thingvallavatn befindet,
und ist eines der aktivsten ...
Neutron time-of-flight texture measurements in Dubna: Status and developments
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
The multidetector texture diffractometer
SKAT (from Russian: Spektrometer
Kolitshestvennovo Analiza Tekstury) at
the pulsed reactor IBR-2 in Dubna,
Russia, started operation in March
1997 and is open for users from ...
Strain Localisation, Fracturing and Hydrothermal Mineralisation: Numerical Models of the Mount Isa Copper Deposit, Australia
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006)
There is substantial need in mineral
exploration to understand the structural
controls on ore deposition for these
types of deposits in order to predict
the localities of new ones. Application
of basic principles of rock ...
Quartz microstructures in nature and experiment — evidence of rapid plastic deformation and subsequent annealing
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Quartz microstructures produced in
short-term deformation and annealing
experiments are compared with those in
naturally deformed vein quartz in cores
from the Long Valley Exploratory Well
(Long Valley Caldera, California). ...
Kinematics of the SEMPfault in the western Tauern Window (Stillupp Valley)
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
The working area is located in the
Stillupp Valley (Tirol, Austria), where
the western termination of the SEMPfault
(Salzach, Ennstal, Mariazell,
Puchberg), overprints the northernmost
margin of the Zentralgneiss. This ...
Dyke emplacement in Tenerife (Canary Islands): Field studies and numerical models
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Dykes are magma-driven extension fractures
and the main conduits for magma
in volcanic eruptions. To understand
the mechanics of dyke emplacement
is thus essential to assess volcanic
hazards. To improve the understanding
of ...