Suche
Anzeige der Dokumente 101-110 von 208
The importance of lithological heterogeneity of the Onaping Formation for understanding post-impact deformation of the Sudbury Impact Structure, Canada
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
The suevitic Onaping Formation overlies
the layered Main Mass of the
1.85Ga Sudbury Igneous Complex
(SIC) of the Sudbury Impact Structure,
Ontario. The Formation consists of
four Members, namely from top to
bottom, the ...
Origin of Central Andean collapse calderas
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Regional strains in tectonically active
volcanic provinces may have a profound
influence on the mode of collapse caldera
formation. Conversely, the deformation
pattern, more specifically, the symmetry
of plan-view strain ...
Microstructural analysis of the RWTH-1 cores in thinsections
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
The Aachen RWTH-1 well was drilled
to 2544mTVD for geothermal purposes and gives substance to extensive geoscientific
research. It is located in a hydrothermally
and seismically active area
of the Aachen Anticline, 500m ...
Strukturanalyse juveniler Fragmente in Vulkaniklastika des Messel Maar-Diatrems
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Geophysikalische Untersuchungen im
Gebiet der Grube Messel (25km südlich
von Frankfurt) ließen schon vor einigen
Jahren eine Maar-Diatrem-Struktur
im Untergrund vermuten. Jedoch erst
die gekernte Forschungsbohrung im
Jahr ...
Deformation der karbonatischen Espanola-Formation im zentralen Teil der Sudbury-Impaktstruktur, Kanada
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Archaische Granitoide und paläoproterozoische
Metasedimente der Huronian
Supergroup werden von dem
schüsselförmigen und partiell erodierten
1.85 Ga alten Impaktschmelzkomplex
der Sudbury-Impaktstruktur überlagert.
Huronische ...
Application of Photogrammetry in Geology: 3D Investigation of Rock Fracture Distributions
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Geology as a science has an important
visual component and the knowledge of
any geologist is deeply linked to visual
experience of rock outcrops, thin sections
and analytical images. One of the
shortcomings of most geological ...
A new practical and economical technique for the obtention of high quality thin section photographs with the help of a simple optical microscope
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Microscopic study is an indispensable
step in the determination of the petrographic
characteristics of rocks. In
Cameroon just like in most developing
countries, simple polarizing microscopes
of the 20th Century constitute ...
Feldspar deformation in greenschist facies shear zones (Aar-Massif, Switzerland)
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Granitic gneisses of the Central Aar
Granite host a shear zone network
that formed at greenschist facies conditions.
The work area is located in
the Bächlital (Grimsel area, Central
Switzerland) and was chosen for the
analysis ...
Textures in mylonitised granite from Banefo area in the central part of the Cameroon Central Shear Zone (central Africa) — Kinematics and gradian deformation indicators
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
The North Equatorial Panafrican belt
is constituted by orthogneissified metamorphic
and magmatic sets linked to
tectonometamorphic events of the neoproterozoic
orogeny. This belt whose
formations are situated in the North ...
Geochemische Klassifikation und Sm-Nd Isotopensystematik proterozoischer Metasedimente des Baltischen Schildes (Västervik Region, SESchweden)
(
- 11. Symposium "Tektonik, Struktur- und Kristallingeologie"
, 2006-03)
Die Västervik Region liegt an einer
Haupt-Terran-Grenze im Baltischen
Schild. Im NE schließen sich die Einheiten
des Südsvecofennischen Vulkanitgürtels
mit Altern >1,85Ga an, im SW
folgen die Granitoide des Transskandina ...