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Dimensioning metallic iron beds for efficient contaminant removal
; Caré, S. (Chemical Engineering Journal, 2010)
Remediation of contaminated groundwater is an expensive and lengthy process. Permeable reactive barrier of metallic iron (Fe0 PRB) is one of the leading technologies for groundwater remediation. One of the primary challenges ... -
Dinoflagellaten-Zysten als Paläoumweltindikatoren im Spätquartär des Europäischen Nordmeeres
(Univ. Bremen, 2007)Dinoflagellate cysts, paleoceanography, paleoenvironment, Late Quaternary, Norwegian-Greenland Sea. - Dinoflagellate cysts have been investigated in nine short sediment cores as well as two long sediment cores from the ... -
Dinosaur tracks 2011 - an International Symposium, Obernkirchen, April 14-17, 2011; Abstract Volume and Field Guide to Excursions
Richter, Annette (Hrsg.); (Univ.-Verl. Göttingen, Göttingen, 2012)
The Early Cretaceous (late Berriasian) Bückeberg Formation in the southern Lower Saxony Basin, to the west and to the south of Hannover, yields abundant and diverse dinosaur tracks, known since the late 1870s. After a few ... -
Dinosaurian survivorship schedules revisited: new insights from an age‐structured population model
(Palaeontology, 2021-10-13)
Little is known of dinosaur population biology due to insufficient information on age‐dependent fecundities and mortalities. So far, survivorship curves (SC) of only six dinosaurs (four tyrannosaurs, one ceratopsian, one ... -
Dipolarization Fronts in the Jovian Magnetotail: Statistical Survey of Ion Intensity Variations Using Juno Observations
; ; ; ; (Journal of Geophysical Research: Space Physics, 2023-04-12)
Energetic particle acceleration and energization in planetary magnetotails are often associated with dipolarization fronts characterized by a rapid increase of the meridional component of the magnetic field. Despite many ... -
Dipolinversion mit Komponentengradienten in der Aeromagnetik
; Virgil, Christopher; Stoll, Johannes; (2021)
In der Aeromagnetik werden zur Kampfmitteldetektion Multikopter eingesetzt, um belastete Flächen schnell und mit hoher Auflösung zu kartieren. Dabei wurden bisher hauptsächlich einzelne Totalfeldsensoren oder Fluxgate-Magnetometer ... -
Direct and indirect luminescence dating of tephra: A review
; (Journal of Quaternary Science, 2019)
In Quaternary studies, tephras are widely used as marker horizons to correlate geological deposits. Therefore, accurate and precise dating is crucial. Among radiometric dating techniques, luminescence dating has the potential ... -
Direct Evidence of a Slow‐Slip Transient Modulating the Spatiotemporal and Frequency‐Magnitude Earthquake Distribution: Insights From the Armutlu Peninsula, Northwestern Turkey
; ; ; ; ; ; (Geophysical Research Letters, 2022-09-22)
Earthquakes and slow‐slip events interact, however, detailed studies investigating their interplay are still limited. We generate the highest resolution microseismicity catalog to date for the northern Armutlu Peninsula ... -
Direct linking of Greenland and Antarctic ice cores at the Toba eruption (74 ka BP)
(Climate of the Past, 2013)The Toba eruption that occurred some 74 ka ago in Sumatra, Indonesia, is among the largest volcanic events on Earth over the last 2 million years. Tephra from this eruption has been spread over vast areas in Asia, where ... -
Direct measurements of atomic oxygen in the mesosphere and lower thermosphere using terahertz heterodyne spectroscopy
;; ; ; ; ; ; (Communications Earth & Environment, 2021-01-26)
Atomic oxygen is a main component of the mesosphere and lower thermosphere of the Earth, where it governs photochemistry and energy balance and is a tracer for dynamical motions. However, its concentration is extremely ... -
Direct observation of microcrack development in marble caused by thermal weathering
; Ruiz-Agudo, E.; Cultrone, G.; Sebastián, E.; Siegesmund, S. (Environmental Earth Sciences, 2010)
One of the properties that makes marble such an excellent construction and ornamental material is its low porosity. It is very difficult for water or decay agents to penetrate the internal structure of materials with no ... -
Direct Viscosity Measurement of Peridotite Melt to Lower‐Mantle Conditions: A Further Support for a Fractional Magma‐Ocean Solidification at the Top of the Lower Mantle
; ; ; ; ; (Geophysical Research Letters, 2021-10-05)
As evidenced by isotope geochemistry, the persistence of primitive reservoirs indicates that the earth's lower mantle is likely to be heterogeneous. Such heterogeneity could be a legacy from magma‐ocean (MO) solidification. ... -
Directionality of the Martian Surface Radiation and Derivation of the Upward Albedo Radiation
; ; ; ; ; ; ; ; ; ; (Geophysical Research Letters, 2021-07-31)
Since 2012 August, the Radiation Assessment Detector (RAD) on the Curiosity rover has been characterizing the Martian surface radiation field which is essential in preparation for future crewed Mars missions. RAD observed ... -
Direct‐Push Color Logging Images Spatial Heterogeneity of Organic Carbon in Floodplain Sediments
; ; ; ; (Journal of Geophysical Research: Biogeosciences, 2020-12-10)
In soils and sediments, large amounts of total organic carbon (TOC) mark reducing conditions. As dark sediment colors are good predictors for high‐TOC zones, they indicate hot spots of biogeochemical turnover and microbial ... -
Discretization of Sea Ice Dynamics in the Tangent Plane to the Sphere by a CD‐Grid‐Type Finite Element
; (Journal of Advances in Modeling Earth Systems, 2022-12-15)
We present a new discretization of sea ice dynamics on the sphere. The approach describes sea ice motion in tangent planes to the sphere. On each triangle of the mesh, the ice dynamics are discretized in a local coordinate ... -
Discriminating Aromatic Parent Compounds and Their Derivative Isomers in Ice Grains From Enceladus and Europa Using a Laboratory Analogue for Spaceborne Mass Spectrometers
; ; ; ; (Earth and Space Science, 2023-04-20)
Abstract Results from the Cassini‐Huygens space mission at Enceladus revealed a substantial ...
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Discrimination of different volcanic rock units by magnetic properties — geothermal field at Reykjanes peninsula (SW-Iceland)
Vahle, C.;; Dietze, F.; Audunsson, H. (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
The geothermal field at Reykjanes peninsula is located at the boundary where the submarine Reykjanes Ridge passes over into the rift zone of southwestern Iceland. The geothermal field coincides with a magnetic low in ... -
Discrimination of TiO2 polymorphs in sedimentary and metamorphic rocks
(Contributions to Mineralogy and Petrology, 2010)Investigation by Raman spectroscopy of samples from different geological settings shows that the occurrence of TiO2 polymorphs other than rutile can hardly be predicted, and furthermore, the occurrence of anatase is more ... -
Discussing surface crack structures in the Schorfheide region, NE Germany
(E&G – Quaternary Science Journal; Vol.65)Express Report -
Disentangling the Impact of Catchment Heterogeneity on Nitrate Export Dynamics From Event to Long‐Term Time Scales
; ; ; ; ; (Water Resources Research, 2021-01-12)
Defining effective measures to reduce nitrate pollution in heterogeneous mesoscale catchments remains challenging when based on concentration measurements at the outlet only. One reason for this is our limited understanding ...
