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Now showing items 12477-12496 of 39126
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RESTRUCTURING OF POLYGALACTURONATE ON ALUMINA UPON HYDRATION-EFFECT ON PHOSPHATE SORPTION KINETICS (2006)Hydration of organic coatings in soils is expected to affect the sorption of oxyanions onto hydrous Fe and Al oxides. We hypothesized that the hydration of polygalacturonate (PGA) coatings on alumina (Al2O3) increases their ...
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(1985)The monitoring of the state of active volcanoes, carried out using different parameters, including geochemical, is very important for studies of deep processes and geodynamics. All changes which occur within the crater ...
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(PANGAEA, 1999-03-20)
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(PANGAEA, 1979-12-17)
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(PANGAEA, 2003-06-20)
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(1997)The results of paleomagnetic studies of moraine deposits are analyzed. The observation data imply that moraine beds display a considerable scatter of magnetization vectors regardless of the rock age. It is inferred that ...
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(2001)This paper examines the results of comprehensive structural (structural-geometric analysis of plane elements and kinematic analysis of faults and associated shear fractures) and paleomagnetic data for Jurassic rocks of the ...
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(2003)Prominent negative δ13C excursions characterize several past intervals of abrupt (<100 kyr) environmental change. These anomalies, best exemplified by the >2.5‰ drop across the Paleocene/Eocene thermal maximum (PETM) ca. ...
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(2003)Evidence is presented for retrograde reaction of silicate minerals with saline brine inside fluid inclusions during post-entrapment cooling. Ferropyrosmalite [(Fe,Mn)8Si6O15(OH,CI)10, where Fe>>Mn] has previously been ...
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(2002)Many migmatites and granulites preserve evidence of a clockwise P-T evolution involving decompression (decrease in P) while close to the thermal peak. The extent of post-thermal peak reaction is influenced by several ...
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(2001)The complexity of geophysical systems makes modelling them a formidable task, and in many cases research studies are still in the phenomenological stage. In earthquake physics, long timescales and the lack of any natural ...
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(2002)We present a new global model for Recent plate velocities, REVEL, describing the relative velocities of 19 plates and continental blocks. The model is derived from publicly available space geodetic (primarily GPS) data for ...
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(2004)In this work, the control exerted by the stress axes orientation on the evolution of seismic sequences developing in compressive and extensional regimes is analysed. According to the Anderson fault theory, the vertical ...
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REVERSED CALCITE MORPHOLOGIES INDUCED BY MICROSCOPIC GROWTH KINETICS: INSIGHT INTO BIOMINERALIZATION (1999)This experimental investigation of calcite growth quantifies relationships between solution supersaturation and the rates of step advancement. Using in situ fluid cell atomic force microscopy (AFM), we show that the movement ...
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(1998)The reaction of phlogopite plus quartz to enstatite, potassium feldspar, and aqueous fluid in the system KMASH-KCl was reversed at 2-12 kbar and 750-875 degrees C and at low H2O activities by reversal of the H2O content ...
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(1987)The authors attempted to find a correlation between the distortion of partial hysteresis cycles and the strength of the thermomagnetization field. Studied was the effect of thermomagnetization on the way in which the ...
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(2002)Available lithostratigraphic, tectonothermal, geochronological and paleomagnetic data from 2.1–1.8 Ga collisional orogens and related cratonic blocks around the world have established connections between South America and ...
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(1998)The known occurrences of oxalate minerals in deep diagenetic and hydrothermal environments are reviewed and new carbon isotope results are presented that cover, together with previously published data, 22 of 37 known ...
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(1997)There are 96 approved PG (platinum group) - mineral species and more than 500 unidentified PG-phases on record. In addition, over 20 non-PG-minerals contain varying concentrations of one or more of the six platinum group ...
Now showing items 12477-12496 of 39126