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GeologyScience Repository: Recent submissions
Now showing items 1-20 of 43490
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(2006)This paper presents the results of a detailed study on the occurrence and distribution of alkylnaphthalenes and alkylphenanthrenes in 39 coal and sediment samples from the Late Palaeozoic containing predominantly terrestrial ...
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(2006)Comprehensive organic-geochemical investigations were applied to Permian, Carboniferous and Devonian coals. The major goal of the investigation was to quantify differences in organic matter composition of the coals on a ...
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(2006)Triggering and synchronization are encountered in many geophysical phenomena, including geodynamics. Both these effects are generated by the action of additional forcing, which is much smaller than the main driving force. ...
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(2006)Задача определения палеоглубин — одна из наиболее сложных при реконструкции и моделировании истории древних бассейнов, главная проблема в том, что практически не существует количественных критериев ее оценки. Одним из ...
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(2006)В настоящее время фонд легкооткрываемых трубок практически исчерпан. Возникли проблемы с поисками новых трубок. В частности, в Архангельской алмазоносной провинции (ААП) отмечается отсутствие фонда подготовленных участков ...
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(2006)Field stratigraphy and macrofossil composition of four mires in Hokkaido, northern Japan, were investigated to test whether tephra deposition induces long-term vegetation shifts. Macroscopic tephras of known origin ranging ...
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(2006)The crystal structure of Bi2Al4-xFex O9 compounds (x=0-4) has striking similarities with the crystal structure of mullite. A complete substitution of Al by Fe3+ in both octahedral and tetrahedral sites is a particular ...
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(2006)In recent years, much research on modern and palaeotsunami deposits has been published. From these studies, a range of signature types has been identified. Identifying and dating such deposits is an important element in ...
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(2006)We describe in detail the sedimentary facies, provenance and grain-size distributions of the 1993 tsunami deposits in the lower reaches of Usubetsu River. Only two lithofacies were recognized, a gravel lobe facies (GLF) ...
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(2006)Oligocene rocks are one of the most important sources of hydrocarbons within the Paratethyan realm. In the Alpine Foreland Basin (Central Paratethys) the main Oligocene source rock is the Schöneck Formation, but organic-rich ...
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(2006)Pronounced seasonal variability, particularly in the surface ocean heat flux, imparts an important control that drives thermal stratification of the tide-dominated middle- and high-latitude shelf seas. Bottom water temperature ...
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(2006)This study reports a newly discovered gravelly tsunami deposit from the Lower Cretaceous Miyako Group, Japan. The deposit was formed in an open shallow marine setting. The event deposit erosionally overlies shoreface ...
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(2006)Reprocessing of industry deep seismic reflection data (Ramnicu Sarat and Braila profiles) from the SE Carpathian foreland of Romania provides important new constraints on geodynamic models for the origin of the intermediate ...
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NEW OBSERVATIONAL INFORMATION ON THE PRECURSORY ACCELERATING AND DECELERATING STRAIN ENERGY RELEASE (2006)Recent reliable data are used to study the behavior of seismic activity before 46 strong shallow earthquakes (M ≥ 6.0), which correspond to five complete samples of mainshocks. These samples include 6 mainshocks (M = ...
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(2006)Lupanoid hydrocarbons are known to occur in several petroleum systems, and lupane (C30) has recently been confirmed to exist in several crude oils. In contrast, norlupanes (C29) and bisnorlupanes (C28) are rarely observed ...
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(2006)Analyses of expanded (1975 to 3330 m thick) deep-marine Ypresian-Lutetian successions from the Pamplona and Basque basins (W Pyrenees) demonstrate a recurring pattern of coeval sedimentary and biotic changes: intervals ...
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(2006)We test the Bowman and King [Bowman, D.D., King, G.C.P., 2001a, Accelerating seismicity and stress accumulation before large earthquakes. Geophys. Res. Lett., 28 (21), 4039-4042, Bowman, D.D., King, G.C.P., 2001b. Stress ...
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(2006)Microstructural modification processes like dynamic recrystallization and grain growth can have a major effect on the transient and (semi-)steady state flow behaviour of deforming materials. Work on metals and ceramics ...
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(2006)We present a petrophysical analysis of upper mantle xenoliths, collected in the Quaternary alkali basalt fields (Series III and IV) from the island of Lanzarote. The samples consist of eight harzburgite and four dunite ...
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(2006)Oceanic stratification represents an effective mechanism to reduce vertical mixing of the water column, thereby locking up carbon dioxide (CO2) in the deep sea and preventing air-sea exchange of CO2. It has been proposed ...
Now showing items 1-20 of 43490