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Now showing items 14478-14497 of 43490
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(2002)The manner in which an earthquake rupture propagates across a fault reflects both the initial properties of the fault and the dynamical stresses produced by the rupture. We quantify the propagation of an earthquake rupture ...
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(2001)Zircons from two Archean samples, a 2732-Ma trondhjemite and a 2728-Ma dacite, both from the western Superior province, were washed in hydrofluoric acid (HF) at moderate temperatures. Zircon residues and HF wash solutions ...
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(2006)In this study we investigated the quantitative and qualitative aspects of soil organic matter (SOM) losses caused by water erosion within a small catchment in Northern Laos, under steep slopes and slash and burn agriculture. ...
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(2002)A new model of infiltration in swelling and shrinking clay soil was developed. The model consisted of two flow domains: soil matrix, with flow modelled by means of Darcy equation, and macropores; the latter was divided in ...
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(2006)Equilibrium constants for internal isotopic exchange reactions of the type:{A formula is presented}for individual CO32- groups in the carbonate minerals calcite (CaCO3), aragonite (CaCO3), dolomite (CaMg(CO3)2), magnesite ...
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(1989)Detailed study of Shape Preferred Orientations (SPOs) and Lattice Preferred Orientations (LPOs) of olivine, clinopyroxene, and plagioclase have been carried out for samples of compositionally layered gabbro from the lower ...
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(2006)Auriferous sediments in the East Sudetic Foreland region include up to five gold-bearing horizons associated with preglacial and Quaternary fluvial sediments. The largest placer potential lies in the preglacial (Eopleistocene?) ...
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(2006)In contrast with the understanding of present-day soil erosion processes, knowledge on past soil erosion phenomena is still rather limited. Although some studies report on severe gully erosion phases during the fourteenth ...
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(2006)Analyses of fossil seeds and pollen grains preserved in seven sediment cores and borings were combined with historical land-use records to reconstruct an 1800-yr history of Otter Point Creek (OPC), a freshwater tidal deltaic ...
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(2006)Long-distance human migration across the Pacific Ocean occurred during the late Holocene and originated almost entirely in the west. As prevailing tradewinds blow from the east, the mechanisms of prehistoric seafaring have ...
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(2002)The 1957 Gobi Altay M8.3 earthquake in southern Mongolia was associated with the simultaneous rupture of several faults, including the Gurvan Bulag reverse fault, which is located about 25 km south of the main strike-slip ...
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(1995)For the first time in Kamchatka, tephrochronology has been used to date paleoseismo-dislocations, tsunami deposits, and episodes of seismotectonic uplift that had occurred on the Kamchatskiy Peninsula for the past 2000 ...
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(2000)For the first time in Kamchatka, 47 paleotsunamis that had hit the shore of the Kronotskii Gulf during Holocene time were identified and dated using a tephrochronological method. The data for the time period from 3000 B.P. ...
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(1999)Preiswerkite and Na-(Mg,Fe)-margarite are two unusual micas very rare in Nature. They have been observed together in two eclogite occurrences (La Compointrie, France; Liset, Norway) as retrogression products in coronae or ...
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(2006)Many coastal areas have been intensively urbanized because people living and working on or near coastlines are increasing. Land reclamation from the sea and high-rise buildings are common approaches to satisfying the growing ...
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(1996)Selenium solubilization can be a potential source of environmental contamination in natural systems. Currently no experimental data are available on the solubility of metal selenites in aqueous solutions. The objective of ...
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(2006)This paper reports common Pb isotope data of omphacite in eclogite and feldspar in gneiss from the Chinese Continental Scientific Drilling (CCSD) (100 ~ 2000m). The radiogenic Pb of samples from the upper section (0 ~ 800m) ...
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(1998)An ultra-violet laser ablation microprobe (UVLAMP) has been applied for the first time to investigate argon partition coefficients for olivines and clinopyroxenes grown from silicate melts at 1 bar argon pressure. These ...
Now showing items 14478-14497 of 43490