Browsing Fakultät für Geowissenschaften und Geographie (inkl. GAUSS) by Advisor "Reitner, Joachim Prof. Dr."
Now showing items 1-15 of 15
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Carbonate factories in the early Archean and their geobiological impacts
(2023-08-08)Paleoarchean carbonates in the Pilbara Craton (Western Australia) are important archives for early life and environment on early Earth. Amongst others, carbonates occur in interstitial spaces of ca. 3.5–3.4 Ga pillow basalts ... -
A geobiological approach to carbonate factories and ecosystem changes across the Permian–Triassic boundary
(2022-04-05)Contemporary climate change is accelerating. Meanwhile, “Has the Earth’s sixth mass extinction already arrived?” is inquired. The Permian–Triassic crisis, as a possible analog in the Earth history, has aroused great ... -
Biosignatures of modern microbial mats, Kiritimati/Kiribati, Central Pacific
(2019-10-17)Organic biomarkers have been widely used to trace the information of their biological precursors and to reveal information about fossil depositional environment, and thus they help to reconstruct ancient ecosystems. Prior ... -
“Keratose” sponge fossils and microbialites: a geobiological contribution to the understanding of metazoan origin
(2015-02-18)Molecular clock and the fossil record at the Precambrian-Cambrian boundary indicate that animals probably had a long evolutionary history in the Precambrian which is still poorly explored and understood. This PhD study was ... -
Geobiology of bituminous carbonates from the Ediacaran Shibantan Member (Dengying Formation, South China)
(2014-10-08)The Shibantan Member is one of only two known carbonate settings characterised by a 'typical' Ediacaran fossil association including Ediacara-type fossils. Aim of this project was a comprehensive geobiological characterisation ... -
Raman spectroscopy in Geobiology - Advances in detection and interpretation of organic signatures in rocks and minerals
(2014-01-21)In this thesis, Raman spectroscopy was applied to a broad range of rock types in order to test the ability of detecting and interpreting organic signals. In the field of geobiology Raman spectroscopy is relatively new, and ... -
Contributions to the Palaeobiology of the Archosaurs (Reptilia: Diapsida) from the Bückeberg Formation ('Northwest German Wealden' - Berriasian-Valanginian, Lower Cretaceous) of northern Germany
(2013-11-27)Fossil remains of archosaurs, the dominant clade of non-marine tetrapods during the Mesozoic, are known from the Berriasian to Lower Valanginian Bückeberg Formation (the “German Wealden”) of northwestern Germany since the ... -
Fluid venting structures of terrestrial mud volcanoes (Italy) and marine cold seeps (Black Sea) -Organo-geochemical and biological approaches
(2012-03-06)Two different fluid venting structures, marine cold seeps of the Black Sea and terrestrial mud volcanoes of Italy, were part of this thesis. Both were formed by the expulsion of water, mud ... -
Paläoökologische und geochemische Studien auf Schwamm-Mikroinkrustrierer- Gemeinschaften ausgewählter Cipit Kalke aus der St. Cassian Formation (Unterkarn, Obertrias) von der Dolomiten, Nordostitalien
(2010-12-23)The Lower Carnian St. Cassian Formation (Dolomites, NE Italy) is well known for its very diverse and exceptionally well-preserved fauna. It dates from Middle to Late Triassic and comprises ... -
Mikrobielle Diversität an diffusen Quellen des Mittel-Atlantischen Rückens
(2010-11-30)The deep sea floor forms largest associated ecosystem on earth. With it´s numerous ecological niches such as mud-volcanoes, cold seeps and hot and low-temperature influenced vents it could ... -
Geochemie Porifera-reicher Mud Mounds und Mikrobialithe des Mittel- und Oberdevons (Westaustralien, Nordfrankreich)
(2006-05-09)Mud mounds and microbialites of the Boulonnais (Northern France) and from the reefal slope facies of Upper Devonian reef complexes (Western Australia) were investigated by geochemical and ... -
Rezente und subfossile Mikrobialithe westaustralischer Salzseen
(2006-03-24)Calcification processes on organic matrix and biofilms have been in focus of carbonate sedimentological and biogeochemical investigations in recent years . Biofilms which are rich in ... -
Die Landpflanzenevolution im Phanerozoikum aus petrographischer und geochemischer Sicht
(2006-03-17)The origin and early diversification of land plants marks an interval of unparalleled innovation in the history of plant life. From a simple plant body consisting only of a few cells, land ... -
Porifera-microbialites of the Lower Liassic (Northern Calcareous Alps) - Re-settlement strategies on submarine mounds of dead Rhaetian reefs by ancestral benthic communities
(2005-06-08)In the aftermath of the Triassic-Jurassic extinction event, extant slopes of drowned alpine reef buildups were recolonized in patches by predominantly non-rigid sponges. Sponge faunas of ... -
Microbial sulfate reduction in the tissue of the cold-water sponge Geodia barretti (Tetractinellida, Demospongiea)
(2003-06-12)Metabolic rates, community structure and the chemical micro-environment of sulfate-reducing bacteria (SRB) within the tissue of the boreal demosponge Geodia barretti were examined, and ...