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Bibliothèque cantonale jurassienne

Plate tectonics and continental drift

Prothero, Donald R.

In: Encyclopedia of paleontology, 1999, p. 940

Université de Fribourg

High-frequency palaeoenvironmental changes on a shallow carbonate platform during a marine transgression (Late Oxfordian, Swiss Jura Mountains)

Védrine, Stéphanie ; Strasser, André

In: Swiss Journal of Geosciences, 2009, vol. 102, no. 2, p. 247–270

Based on a well-established bio- and sequence-stratigraphic framework, a narrow time window in the Bimammatum ammonite zone (Late Oxfordian) is investigated in six Swiss Jura sections representing a shallow-water carbonate platform. From the detailed facies and microfacies analysis of oncoid-rich (Hauptmumienbank Member) and ooid-rich (Steinebach Member) limestones, a microfacies...

Université de Fribourg

Quantum magnets under pressure: controlling elementary excitations in TlCuCl₃

Rüegg, Ch. ; Normand, Bruce ; Matsumoto, M. ; Furrer, A. ; McMorrow, D. F. ; Krämer, K. W. ; Güdel, Hans-Ulrich ; Gvasaliya, S. N. ; Mutka, H. ; Boehm, M.

In: Physical Review Letters, 2008, vol. 100, p. 205701

We follow the evolution of the elementary excitations of the quantum antiferromagnet TlCuCl₃ through the pressure-induced quantum critical point, which separates a dimer-based quantum disordered phase from a phase of long-ranged magnetic order. We demonstrate by neutron spectroscopy the continuous emergence in the weakly ordered state of a low-lying but massive excitation corresponding to...

Université de Fribourg

High-frequency palaeoenvironmental changes in mixed carbonate-siliciclastic sedimentary systems (Late Oxfordian, Switzerland, France, and southern Germany)

Védrine, Stéphanie ; Strasser, André (Dir.)

Thèse de doctorat : Université de Fribourg, 2007 ; no 1579.

The main goal of this study is to monitor the highfrequency palaeoenvironmental changes occurring during a marine transgression in mixed carbonatesiliciclastic sedimentary systems. Based on a wellestablished bio- and sequence-stratigraphic framework, a narrow time window in the Bimammatum Zone of the Late Oxfordian is investigated. Seven shallow platform sections (Swiss Jura, Lorraine), two deep...

Université de Fribourg

History of a Middle Berriasian transgression (Switzerland, France, and southern England)

Tresch, Jonas ; Strasser, Andreas (Dir.)

Thèse de doctorat : Université de Fribourg, 2007 ; no 1550.

The aim of this study is to correlate and interpret transgressive deposits of three different depositional regions with high resolution: the marginal-marine carbonates of the Jura platform (France and Switzerland) and the Dorset region (UK). Additionally, a hemipelagic section of the Vocontian basin (France) has been integrated into the high-resolution correlation scheme. The Middle Berriasian...

Université de Fribourg

Carbonate sedimentology, sequence stratigraphy, and cyc-lostratigraphy of the Tithonian in the Swiss and French Jura Mountains : a high-resolution record of changes in sea level and climate

Rameil, Niels ; Strasser, Andreas (Dir.) ; Bosence, Daniel W.J. (Codir.) ; Bläsi, Hansruedi (Codir.)

Thèse de doctorat : Université de Fribourg, 2005 ; Nr. 1493.

The present study aims at a better understanding of the development of the Swiss and French Jura platform during the Jurassic/Cretaceous (J/K) boundary interval, with a special focus on the Tithonian stage. Nine reference sections were measured in the Jura Mountains of northwestern Switzerland and eastern France, in the Helvetic Alps, and in the Subalpine Ranges in south-eastern France. Their...

Université de Fribourg

Cyclostratigraphic timing of sedimentary processes: an example from the Berriasian of the Swiss and French Jura Mountains

Strasser, André ; Hillgärtner, Heiko ; Pasquier, Jean-Bruno

In: Cyclostratigraphy: Approaches and Case Histories, 2004, p. 135-151

The Berriasian Pierre-Châtel Formation in the Swiss and French Jura Mountains is dominated by shallow-marine carbonates that overlie lacustrine and marginal-marine sediments with a major transgressive surface. Detailed facies analysis of five sections allows the definition of elementary and small-scale depositional sequences, which commonly exhibit deepening–shallowing trends. Benthic...

Université de Fribourg

Sédimentologie, stratigraphie séquentielle et cyclostratigraphie du Kimméridgien du Jura suisse et du Bassin vocontien (France) : relations plate-forme - bassin et facteurs déterminants

Colombié, Claude ; Strasser, Andreas (Dir.)

Thèse de doctorat : Université de Fribourg, 2002 ; no 1380.

A detailed sedimentological, sequential and cyclostratigraphic interpretation of the Kimmeridgian in the Swiss Jura defines the principal factors which control the different stages in the development of a shallow-water carbonate platform. A comparative study in the Vocontian Basin reveals their impact on hemipelagic and pelagic sedimentation. The sedimentary facies of three platform sections –...

Université de Fribourg

About the morphological relationships of the sarcoplasmic reticulum in the sole plate area of the frog

Voigt, Tilman ; Dauber, Wolfgang

In: Tissue and Cell, 2004, vol. 36, no. 4, p. 249-252

In the present investigation the sole plate area of motor end plates of the frog is ultrastructurally examined with different postfixation methods. We concentrated in this case on the proof of the smooth and rough sarcoplasmic reticulum of the sole plate. The relations of the smooth and rough sarcoplasmic reticulum to subsynaptic folds and the local T-system and its connections to diads and...