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Oxygen Consumption of Resuspended Sediments of the Upper Elbe Estuary: Process Identification and Prognosis
(Aquatic Geochemistry, 2021-11-30)The resuspension of sediment leads to an increased release of nutrients and organic substances into the overlying water column, which can have a negative effect on the oxygen budget. Especially in the warmer months with a ... -
Oxygen Dependent Temperature Regulation of Benthic Fluxes in Reservoirs
(Global Biogeochemical Cycles, 2023-04-02)Temperature and dissolved oxygen concentration are critical factors affecting the exchange of solutes between sediment and water; both factors will be affected by warming of lakes and thereby influence water quality. ... -
Oxygen isotope fractionation in marine aragonite of coralline sponges
(Geochimica et cosmochimica acta, 2000) -
Oxygen isotope fractionation in marine aragonite of coralline sponges
(Geochimica et cosmochimica acta, 2000) -
Oxygen Vacancy Ordering in Aluminous Bridgmanite in the Earth's Lower Mantle
(Geophysical Research Letters, 2019)Oxygen vacancies (OVs), that charge-balance the replacement of octahedrally coordinated Si4+ by Al3+ in the mineral bridgmanite, will influence transport properties in the lower mantle but little is known about their ... -
Oxygen Vacancy Substitution Linked to Ferric Iron in Bridgmanite at 27 GPa
(Geophysical Research Letters, 2020)Ferric iron can be incorporated into the crystal structure of bridgmanite by either oxygen vacancy substitution (MgFeO2.5 component) or charge-coupled substitution (FeFeO3 component) mechanisms. We investigated the ... -
Oxygenic photosynthesis as a protection mechanism for cyanobacteria against iron-encrustation in environments with high Fe(2+) concentrations.
(Frontiers in microbiology, 2014) -
Ozon- und Wasserdampfverteilung im polaren Strahlstrom über dem Nordatlantik
(Univ. Köln, 1998) -
Ozone depletion, chlorine activation and water vapor observed in Spitsbergen
(Univ. Bremen, 2002) -
Ökohydrologische Aspekte zur Erhaltung von Moorgewässern
(TELMA - Berichte der Deutschen Gesellschaft für Moor- und Torfkunde; Band 10; 1980)Von 186 natürlichen Gewässern im Flachland Niedersachsens liegen 48 % in Mooren und Anmooren. Auch die drei größten Binnenseen Steinhuder Meer, Dümmer und Zwischenahner Meer sind von Mooren umgeben. Die Erhaltung und ... -
Ökologie, Taxonomie und Verbreitung der nichtmarinen Ostrakoden-Gattung Scottia im Quartär von Europa
(E&G – Quaternary Science Journal; Vol.22, No. 1)Scottia browniana (Jones 1850) Brady & Norman 1889 war bisher als einziger Vertreter der Gattung Scottia aus dem Quartär von Europa bekannt. Die Art wurde zuerst fossil in Sedimenten des Mittel- und Altpleistozäns gefunden. ... -
Ökotechnische Aspekte der Hochmoor-Regeneration
(TELMA - Berichte der Deutschen Gesellschaft für Moor- und Torfkunde; Band 17; 1987)In Niedersachsen werden während der nächsten zwei bis drei Jahrzehnte vermehrt industriell teilabgetorfte Hochmoorflächen (= Leegmoor) nach dem Ende der Abtorfung zurückgegeben, insgesamt nahezu 30.000 ha. Diese sollen ... -
Paired 10Be sampling of polished bedrock and erratic boulders to improve dating of glacial landforms: an example from the Western Alps
(Earth Surface Processes and Landforms, 2020)Cosmogenic nuclide dating of glacial landforms may lead to ambiguous results for ice retreat histories. The persistence of significant cosmogenic concentrations inherited from previous exposure may increase the apparent ... -
Palaeobiological reconstructions of selected Spinctozoan Sponges from the Cassian Beds (Lower Carnian) of the Dolomites (Northern Italy)
(Berliner geowissenschaftliche Abhandlungen, 1993)PalaeobiologicaJ models of four selecled species of sphinctozoan coraIIine sponges from the Cassian Ileds (Lower Camian, Dolomites) have been established using, among othels, luminescence tecbniques. The latter has beeil ... -
Palaeodiversity, palaeobiology and palaeoecology of middle devonian crinoids from the Eifel type region
(Univ. Köln, 2009)This doctoral thesis deals with crinoids from the Middle Devonian (U. Eifelian to L. Givetian) of the Eifel Synclines (western Rhenish Massif, Germany) and secondary with U. Eifelian to U. Givetian crinoids of the eastern ... -
Palaeoecological analysis of maximum flooding zones from the Tithonian (Upper Jurassic) of the Kachchh Basin, western India
(Facies, 2020-12-24)The siliciclastic Jhuran Formation of the Kachchh Basin, a rift basin bordering the Malagasy Seaway, documents the filling of the basin during the late syn-rift stage. The marine, more than 700-m-thick Tithonian part of ... -
Palaeoecological signals for Mesolithic land use in a Central European landscape?
(Journal of Quaternary Science, 2022-05-12)During the Early Holocene, climate was the major factor causing fires, but whether during the Mesolithic (~11.5–7.4 cal ka BP) people co‐shaped their environment by means of fire remains of debate. Few studies have tackled ... -
Palaeoenvironmental evolution of the Tunisian carbonate platform margin - response to global oceanographic and climatic changes (Barremian-Aptian)
(Univ. Bremen, 2008)The Late BarremianLate Aptian interval was characterised by several major changes in the ocean/climate system related to the onset of the Mid-Cretaceous greenhouse world. North Africansedimentary deposits offer excellent ...