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Anzeige der Dokumente 3400-3419 von 6897
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Late Pliocene to early Pleistocene climate dynamics in western North America based on a new pollen record from paleo-Lake Idaho
; ; ; ; ; ; ; (Palaeobiodiversity and Palaeoenvironments, 2021-01-07)
Marked by the expansion of ice sheets in the high latitudes, the intensification of Northern Hemisphere glaciation across the Plio/Pleistocene transition at ~ 2.7 Ma represents a critical interval of late Neogene climate ... -
Late Quaternary environmental history of Taylor Valley, southern Victoria Land, Antarctica, reconstructed by a multidisciplinary study of lake sediments
(Univ. Köln, 2009)In the unglaciated areas of Antarctica, lake sediments act as archives of the regional environmental and climatic history. In most cases, the records are restricted to the Holocene. Amongst the few exceptions are lakes in ... -
Late Quaternary evolution of rivers, lakes and peatlands in northeast Germany reflecting past climatic and human impact – an overview
; Lorenz, Sebastian; Germer, Sonja; Juschus, Olaf; Küster, Mathias; Libra, Judy; Bens, Oliver; Hüttl, F., Reinhard (E&G – Quaternary Science Journal; Vol.61, No. 2)
Die Kenntnis der regionalen Paläohydrologie ist eine wesentliche Grundlage für das Verständnis aktueller Umweltfragen, wie zum Beispiel nach den Gründen von hydrologischen Veränderungen, dem Einfluss von Landnutzungsstrategien ... -
Late Quaternary paleoenvironmental reconstructions from sediments of Lake Emanda (Verkhoyansk Mountains, East Siberia)
; ; ; ; ; ; ; ; (Journal of Quaternary Science, 2022-05-06)
Continuous pollen and chironomid records from Lake Emanda (65°17′N, 135°45′E) provide new insights into the Late Quaternary environmental history of the Yana Highlands (Yakutia). Larch forest with shrubs (alders, pines, ... -
Late stage evolution of the Serifos Metamorphic Core Complex (Cyclades, Greece)
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)The island of Serifos is located in the Western Cyclades within the Attic- Cycladic metamorphic belt. It represents the westward continuation of an arcuate belt of Metamorphic Core Complexes with intrusions of late ... -
Late Weichselian and Holocene Marine Transgressions in Northern Jutland, Denmark
(E&G – Quaternary Science Journal; Vol.35, No. 1)Aufbauend auf Arbeiten der letzten 10 Jahre wird ein Abriß der spätpleistozänen und holozänen Entwicklungsgeschichte des nördlichen Jütland gegeben. Neue, die Geschichte des Limfjord betreffende Informationen stützen sich ... -
Late Weichselian landscape development and human settlement in Mecklenburg-Vorpommern (NE Germany)
; Klerk, Pim de; Helbig, Henrik; ; (E&G – Quaternary Science Journal; Vol.54, No. 1)
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Late-stage volcano geomorphic evolution of the Pleistocene San Francisco Mountain, Arizona (USA), based on high-resolution DEM analysis and 40Ar/39Ar chronology
(Bulletin of Volcanology, Vol. 72, Nr. 7, p. 833-846, 2010)The cone-building volcanic activity and subsequent erosion of San Francisco Mountain, AZ, USA, were studied by using high-resolution digital elevation model (DEM) analysis and new 40Ar/39Ar dating. By defining remnants or ... -
Lateglacial and Holocene environmental history of the central Kola region, northwestern Russia revealed by a sediment succession from Lake Imandra
Lenz, Matthias; Savelieva, Larisa; Frolova, Larisa; Cherezova, Anna;; Baumer, Marlene; Gromig, Raphael; Kostromina, Natalia; Nigmatullin, Niyaz; Kolka, Vasili; Wagner, Benrd; Fedorov, Grigory; (Boreas, 2020)
Bolshaya Imandra, the northern sub-basin of Lake Imandra, was investigated by a hydro-acoustic survey followed by sediment coring down to the acoustic basement. The sediment record was analysed by a combined physical, ... -
Lateglacial and Holocene wet--dry cycles in southern Patagonia: chronology, sedimentology and geochemistry of a lacustrine record from Laguna Potrok Aike, Argentina
; Corbella, Hugo; Fey, Michael; Janssen, Stephanie; ; Mayr, Christoph; Ohlendorf, Christian; Schäbitz, Frank; Schleser, Gerhard H.; Wille, Michael; Wulf, Sabine; (The Holocene, 2007)
A high-resolution multiproxy geochemical approach was applied to the sediments of Laguna Potrok Aike in an attempt to reconstruct moist and dry periods during the past 16 000 years in southeastern Patagonia. The age–depth ... -
Lateral distribution of cosmic ray muons underground - results from the CosmoALEPH experiment
(Univ. Siegen, 2006)The CosmoALEPH experiment, located underground at the LEP e+e? storage ring at CERN at a depth of 320 m water equivalent, was used to study the chemical composition of primary cosmic rays up to 10 PeV energies from the ... -
Lateral terrestrial water flow contribution to summer precipitation at continental scale – A comparison between Europe and West Africa with WRF‐Hydro‐tag ensembles
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It is well accepted that summer precipitation can be altered by soil moisture condition. Coupled land surface – atmospheric models have been routinely used to quantify soil moisture – precipitation feedback processes. ... -
Lateral variations in the Unit 7–8 boundary zone of the Rum Eastern Layered Intrusion, NW Scotland: implications for the origin and timing of Cr-spinel seam formation
; ; (Contributions to Mineralogy and Petrology, 2020-09-02)
The Rum Layered Suite, NW Scotland, hosts Cr-spinel seams at the bases of peridotite–troctolite macro-rhythmic units in the eastern portion of the intrusion. Here, we present detailed field observations together with ... -
Latest Carboniferous to early Permian volcano-stratigraphic evolution in Central Europe: U–Pb CA–ID–TIMS ages of volcanic rocks in the Thuringian Forest Basin (Germany)
;; ; (International Journal of Earth Sciences, 2020-11-23)
Mainly acidic Stephanian to early Permian volcanic rocks and intercalated sediments accumulated in the Thuringian Forest Basin (TFB) in central Germany to a total thickness of ca. 2000 m. This basin offers a wide range of ... -
Lattice preferred orientation as an indicator of a complex deformation history of rocks
(Textures and microstructures, 1999)The deconvolution of the deformation history of rocks is one of the main goals of texture analysis in geology. The frequent observation that the macroscopic structures are obliquely oriented with respect to the margins of ... -
Lattice-preferred orientations of late-Variscan granitoids derived from neutron diffraction data: implications for magma emplacement mechanisms
Müller, Axel;; Ullemeyer, Klaus; Breiter, Karel (International Journal of Earth Sciences, 2010)
The lattice-preferred orientation (LPOs) of two late-Variscan granitoids, the Meissen monzonite and the Podlesí dyke granite, were determined from high-resolution time-of-flight neutron diffraction patterns gained at the ... -
Laufverlagerungen der Mulde nördlich Eilenburg - Naturprozesse und menschlicher Einfluss seit 1905
(SelbstverlagGöttingen, 2022)Die Mulde bei Eilenburg in Sachsen ist unter den deutschen Flüssen nahezu einzigartig in der freien Ausformung ihres Laufes. Großräumige Verlagerungen des Flussbettes in der Aue seit 1905 zeigen, wie dynamisch Flüsse sein ... -
Laufzeiten und Amplituden der Phasen SKS und SKKS und die Struktur des äußeren Erdkerns
(Selbstverlag, 1984)
Die Laufzeitdifferenz zwischen den beiden Kernphasen SKS und SKKS wird hauptsächlich durch die unterschiedlichen Laufwege im äußeren Kern bestimmt; bis zur Kern-Mantel-Grenze laufen sie durch gleiche bzw. ähnliche Bereiche ... -
Layer groups: Brillouin‐zone and crystallographic databases on the Bilbao Crystallographic Server
(Acta Crystallographica Section A, 2021-09-24)The section of the Bilbao Crystallographic Server (https://www.cryst.ehu.es/) dedicated to subperiodic groups contains crystallographic and Brillouin‐zone databases for the layer groups. The crystallographic databases ... -
Layering by Double‐Diffusive Convection in the Subsurface Oceans of Europa and Enceladus
; ; ; (Journal of Geophysical Research: Planets, 2022-11-29)
Subsurface oceans rich in salts may be prevalent in the icy worlds of the outer solar system. Surface observations have led to various hypotheses for the transport of materials from the seafloor to the surface by hydrothermal ...
