Geologie: Recent submissions
Anzeige der Dokumente 601-625 von 933
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Biomarkers in the stratified water column of the Landsort Deep (Baltic Sea)
Berndmeyer, C.;
; Schmale, O.; Wasmund, N.; Blumenberg, M. (Biogeosciences, 2014)
The water column of the Landsort Deep, central Baltic Sea, is stratified into an oxic, suboxic, and anoxic zone. This stratification controls the distributions of individual microbial communities and biogeochemical ... -
Seismic-stratigraphic architecture of the Oligocene-Pliocene Camaná Formation, southern Peruvian forearc (Province of Arequipa)
Alván De la Cruz, Aldo; Criales, Astrid; Von Eynatten, Hilmar; Dunkl, Istvan;; Jacay, Javier (Andean Geology, 2017)
Arquitectura sísmica-estratigráfica de la Formación Camaná del Oligoceno-Plioceno, Antearco del sur de Perú (Provincia de Arequipa). La Cuenca Camaná-Mollendo es una depresión de margen activo en el sur de Perú, la cual ... -
Hydrated sub-arc mantle: a source for the Kluchevskoy volcano, Kamchatka/Russia
Dorendorf, Frank; Wiechert, Uwe; (Earth and Planetary Science Letters, 2000)
Oxygen isotope ratios of olivine and clinopyroxene phenocrysts from the Kluchevskoy volcano in Kamchatka have been studied by CO2 and ArF laser techniques. Measured δ18O values of 5.8–7.1‰ for olivine and 6.2–7.5‰ for ... -
Evolution of the West Andean Escarpment at 18°S (N. Chile) during the last 25 Ma: uplift, erosion and collapse through time
; Uhlig, Dieter; Kohler, Ingrid; Seyfried, Hartmut (Tectonophysics, 2002)
The geological record of the Western Andean Escarpment (WARP) reveals episodes of uplift, erosion, volcanism and sedimentation. The lithological sequence at 18°S comprises a thick pile of Azapa Conglomerates (25–19 Ma), ... -
Deep Geothermal Energy for Lower Saxony (North Germany) – Combined Investigations of Geothermal Reservoir Characteristics
(Energy Procedia, 2014)For the economic success of a geothermal project the hydraulic properties and temperature of the geothermal reservoir are crucial. New methodologies in seismics, geoelectrics and reservoir geology are tested within the ... -
A new interpretation of the sedimentary cover in the western Siljan Ring area, central Sweden, based on seismic data
(Tectonophysics, 2012)Two new reflection seismic profiles over the Paleozoic successions of the western part of the Siljan Ring impact structure show a contrasting seismic signature. The more southerly c. 10 km long Mora profile reveals a highly ... -
Polyphase exhumation in the western Qinling Mountains, China: Rapid Early Cretaceous cooling along a lithospheric-scale tear fault and pulsed Cenozoic uplift
Heberer, Bianca; Anzenbacher, Thomas; Neubauer, Franz; Genser, Johann; Dong, Yunpeng; (Tectonophysics, 2014)
The western sector of the Qinling–Dabie orogenic belt plays a key role in both Late Jurassic to Early Cretaceous “Yanshanian” intracontinental tectonics and Cenozoic lateral escape triggered by India–Asia collision. The ... -
Rutile occurrence and trace element behavior in medium-grade metasedimentary rocks: example from the Erzgebirge, Germany
(Mineralogy and Petrology, 2009)Metamorphic textures in medium-grade (~500– 550°C) metasedimentary rocks from the Erzgebirge give evidence of prograde rutile crystallization from ilmenite. Newly-crystallized grains occur as rutile-rich polycrystalli ... -
Os, Sr, Nd, Pb, O isotope and trace element data from the Ferrar flood basalts, antarctica: evidence for an enriched subcontinental lithospheric source
Molzahn, M.; Reisberg, L.; (Earth and Planetary Science Letters, 1996)
Os, Sr, Nd, Pb and O isotopes and trace element data are reported for basaltic andesite and andesite whole rocks and, in part, for selected mineral separates from the Jurassic Ferrar flood basalt province. Radiogenic Sr ... -
Enhancing the Sustainability of Household Fe0/Sand Filters by Using Bimetallics and MnO2
; Caré, Sabine; Btatkeu K., Brice Donald; Nanseu-Njiki, Charles Péguy (CLEAN - Soil, Air, Water, 2011)
Filtration systems containing metallic iron as reactive medium (Fe0 beds) have been intensively used for water treatment during the last two decades. The sustainability of Fe0 beds is severely confined by two major factors: ... -
Widefield deconvolution epifluorescence microscopy combined with fluorescence in situ hybridization reveals the spatial arrangement of bacteria in sponge tissue
Manz, Werner;; Schumann-Kindel, Gabriela; Szewzyk, Ulrich; (Journal of Microbiological Methods, 2000)
Widefield deconvolution epifluorescence microscopy (WDEM) combined with fluorescence in situ hybridization (FISH) was performed to identify and characterize single bacterial cells within sections of the mediterranean sponge ... -
Rapid eclogitisation of the Dabie–Sulu UHP terrane: Constraints from Lu–Hf garnet geochronology
Schmidt, Alexander; Weyer, Stefan;; ; Xiao, Yilin; Hoefs, Jochen; (Earth and Planetary Science Letters, 2008)
Rapid eclogitisation of the Dabie–Sulu UHP terrane: Constraints from Lu–Hfgarnet geochronologyAlexander Schmidta,⁎, Stefan Weyera, Klaus Mezgerb, Erik E. Schererb, Yilin Xiaoc,d,Jochen Hoefsd, Gerhard P. BreyaaInstitut für ... -
Simulating the yields of bioenergy and food crops with the crop modeling software BioSTAR: the carbon-based growth engine and the BioSTAR ET0 method
(Environmental Sciences Europe, 2014) -
Microbialite formation in seawater of increased alkalinity, Satonda Crater Lake, Indonesia - Reply
; Reimer, Andreas; (Journal of sedimentary research, 2004)
Our paper (Arp et al. 2003) revises previous studies of Kaz´mierczak and Kempe (1990, 1992), Kempe and Kaz´mierczak (1990a, 1990b, 1993), and Kempe et al. (1996, 1997) on Lake Satonda reefs with regard to biofilm calcification ... -
Amplification of the Atlantic Multidecadal Oscillation associated with the onset of the industrial-era warming
(Scientific Reports, 2017) -
Die Deltaphasen der Unterkreide am Basko-kantabrischen Kontinentalrand, Nordspanien
; Wiedmann, J. (Neues Jahrbuch für Geologie und Paläontologie, 1982)
Excellent onshore outcrops, DSDP cores and dredge sampies facilitate recognition and definition of successive stages in the evolution of the subsiding southern Biscay margin. Here the Lower Cretaceous episodes of this ... -
Cold seep deposits of Beauvoisin (Oxfordian southeastern France) and Marmorito (Miocene northern Italy) Microbially induced authigenic carbonates
Peckmann, J.;; Michaelis, W.; Clari, P.; Gaillard, C.; Martire, L.; (International journal of earth sciences, 1999)
The relation of two well-known ancient carbonate deposits to hydrocarbon seepage was confirmed by this study. Archaea are found to be associated with the formation of Oxfordian seep carbonates from Beauvoisin and with ... -
Designing Iron-Amended Biosand Filters for Decentralized Safe Drinking Water Provision
; Temgoua, Emile; Rahman, Mohammad A. (CLEAN - Soil, Air, Water, 2012)
There are ongoing efforts to render conventional biosand filters (BSF) more efficient for safe drinking water provision. One promising option is to amend BSF with a reactive layer containing metallic iron (Fe0). The present ... -
Microbial fabric formation in spring mounds ("microbialites") of alkaline salt lakes in the Badain Jaran Sand Sea, PR China
; Hofmann, Jürgen; (Palaios, 1998)
The large sandy desert of Badnin Jaran Shamo, Inner Mongolia, has several salt lakes located among megadunes with crests as high as 400 m. Most of the lakes are hypo- to hypersaline and alkaline, with pH values between ... -
Extreme (13)C depletion of carbonates formed during oxidation of biogenic methane in fractured granite.
(Nature communications, 2015)Precipitation of exceptionally 13C-depleted authigenic carbonate is a result of, and thus a tracer for, sulphate-dependent anaerobic methane oxidation, particularly in marine sediments. Although these carbonates typically ... -
Lias-Fossilien aus der Tongrube Eichenberg, Nordhessen
; Persoh, D.; Reimer, A.; ; Sosnitza, M. (Fossilien, 2000)
Fossilreiche Aufschlüsse im Lias des Leinetalgrabens sind eine Seltenheit. Eine Ausnahme hiervon bildet die Tongrube bei Eichenberg an der Grenze von Nordhessen zu Niedersachsen, welche etwa 20 m Ton- und Mergelschiefer ... -
Über Umfang und Stellung des Rhaet
Wiedmann, J.; Fabricius, F.; Krystyn, L.;; Ulrichs, M. (Newsletters on stratigraphy, 1979)
The duration and position of the Rhaetian Stage are di scussed. With the recognition of Rhabdoceras suessi - up to now the index species of the Upper Norian (Sevatian) - in one of the Alpine type sections of the Rhaetian, ... -
Repeatedly Evolved Host-Specific Ectosymbioses between Sulfur-Oxidizing Bacteria and Amphipods Living in a Cave Ecosystem
Bauermeister, Jan;; Dattagupta, Sharmishtha (PLoS ONE, 2012-11-29)
Ectosymbioses between invertebrates and sulfur-oxidizing bacteria are widespread in sulfidic marine environments and have evolved independently in several invertebrate phyla. The first example from a freshwater habitat, ... -
Eine neue Teuthiden-Art aus dem unteren Sinemurium (Lias alpha 3, Ölschiefer) von Dusslingen bei Tübingen (Baden-Württemberg)
; Engeser, Theo (Neues Jahrbuch für Geologie und Paläontologie, 1981)
The squid Loligosepia dusslingensis n. sp. is the oldest known teuthid from the Swabian Jutassic. -
Ein Teuthiden-Rest aus dem Obernor (Kössener-Schichten) der Lahnewies-Neidernachmulde bei Garmisch-Partenkirchen (Bayern)
(Paläontologische Zeitschrift, 1978)
A description of a new Teuthida in the Upper Triass.ic (Kössen-Beds) from the Lahnewies-Neidernachsyncline (Garmisch-Partenkirchen, Bavaria) is given. Loligosepia neidernachensis n. sp. is probably a forerunner of the ...
