In: Marine Geology, 2011, vol. 282, no. 1-2, p. 26-39
The Dhaka and Maya mud volcanoes (MVs), located in the Mud Diapir Province in the Western Alboran Basin along the Moroccan Coasts, were cored during the TTR-17, Leg 1 cruise. Cores were taken on the top of the volcanoes at a water depth of 370 m on the Dhaka MV (core TTR17-MS411G) and at 410 m water depth on the Maya MV (core TTR17-MS419G), respectively. On both mud volcanoes the extruded mud...
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In: Geologica Carpathica, 2009, vol. 60, no. 5, p. 419-430
Three new miliolid taxa from Bessarabian sediments from Georgia (Eastern Paratethys) are described following the classification of Łuczkowska (1972), which has never been used before by ex-Soviet micropaleontologists. They are: Varidentella luczkowskae; Varidentella reussi (Bogdanowicz) subsp. costulata; and Affinetrina voloshinovae (Bogdanowicz) subsp. eldarica. This classification takes into...
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In: The Journal of Foraminiferal Research, 2009, vol. 39, no. 2, p. 112-119
The Oligocene–Miocene transition is characterized by a low degree of biotic turnover (extinction plus origination) in many microfossil groups and especially in planktonic foraminifera. Few species appear, evolve, and disappear across this boundary, and the existence of transitional forms between key species makes biostratigraphic resolution of the boundary interval difficult. The boundary is...
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In: Revue de Paléobiologie, 2008, vol. 27, no. 1, p. 81-88
The planktonic foraminifera Rotalipora klausi Lehmann, 1966 and Globotruncana? semsalensis Corminboeuf, 1961, were figuredonly by drawings and the specimens were never made publicly available, although deposited in the collections of the Departmentof Geosciences, Fribourg, Switzerland. We present here for the first time their Scanning Electron Microscope documentation andcomparison with the...
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In: Swiss Journal of Geosciences, 2008, vol. 101, no. 2, p. 483-513
Les dépôts oligocènes marins, situés dans la partie distale du bassin molassique suisse et dans le prolongement sud du fossé rhénan, sont constitués par les groupes stratigraphiques suivants: les Conglomérats de Porrentruy, le Septarienton et le Meeressand. Cette série sédimentaire a fait l’objet d’études stratigraphiques, sédimentologiques et paléontologiques détaillées. Trois...
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In: Marine Geology, 2008, vol. 250, p. 223–233
Significant synchronous shifts in the chemistry, mineralogy, grain sizes and color of the sediments at 6 m below sea floor (mbsf) at ODP Site 1195 on the Marion Plateau (NE Australia) are interpreted to reflect a major regional paleoceanographic change: the initiation of the southern province of the Great Barrier Reef (GBR). The onset of this massive carbonate production centre nearby resulted...
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In: The Journal of Foraminiferal Research, 2007, vol. 37, no. 3, p. 270-276
We present a recently developed method using a field emission scanning electron microscope (FEG) to view and photograph microfossil specimens that are not coated by conductive material. The FEG microscope provides high electron flux and offers the option to capture images at low beam voltage. Balancing incident energy with absorbed energy from the detector leads to charge-free images of...
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In: Swiss Journal of Geosciences, 2007, vol. 100, no. 2, p. 215-225
Shallow-water limestones of presumed Late Cretaceous and Eocene age, interbedded with basaltic lavas, were described by earlier authors from São Nicolau in the northwestern part of the Cabo Verde archipelago. If confirmed, these ages would imply late Mesozoic shallow-marine and subaerial volcanic activity in the Cabo Verde archipelago, and document a geological history very different from that...
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In: The Journal of Foraminiferal Research, 2007, vol. 37, no. 4, p. 309-317
Traditionally, the benthic foraminifera Hyalinea balthica (Schröter) has been considered a species with high intraspecific variability, possibly related to climatic changes, and, therefore, a potential indicator of paleoclimate in the Mediterranean Sea. However, a stable and characteristic morphology very different from the syntype of the species can be observed in specimens from the Sea...
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In: Geochemistry Geophysics Geosystems, 2007, vol. 8, p. Q01003
In situ measurement of Li isotope ratios in foraminifera has been developed using a Cameca ims 1270 ion microprobe. In situ δ⁷Li analyses have been performed in biogenic calcite of planktonic foraminifera from various locations. Results show that for west Pacific mixed Globigerinoides and Globorotalia (22°S161°E), the isotopic variability between tests and within a...
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