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Browsing ELibrary by Title
Now showing items 979-998 of 21821
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(2003)A special session ‘Geosphere^biosphere coupling; cold seep related carbonate and mound formation and ecology’ was held at the AGU Fall conference in December 2000, and attracted considerable attention. A total of 17 oral ...
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(2003)In sedimentary geology, ground penetrating radar (GPR) is used primarily for stratigraphic studies where near-continuous, high-resolution profiles aid in determining: (1) stratigraphic architecture, (2) sand-body geometry, ...
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(2004)Opinion of geological experts is often formed despite a paucity of data and is usually based on prior experience. In such situations humans employ heuristics (rules of thumb) to aid analysis and interpretation of data. As ...
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(2001)Although the retention of rain-water by a forest floor consisting of vegetation litter has large hydrological and geomorphological effects in a forested catchment, its physical processes have not yet been clarified. For ...
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(2005)We have performed a thermodynamic analysis to determine the internal consistency of state-of-the-art experimental data for olivine, wadsleyite, and ringwoodite solid solutions. The analysis has been carried out between 200 ...
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(2002)The application of detrital zircon geochronology for provenance analysis is complicated by the presence of biases induced by natural processes and sample preparation. The biasing of age distributions as a result of magnetic ...
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(1996)Corals show great promise for preserving century-long records of ocean chemistry and temperature with weekly time resolution. Allison and Tudhope (1992) showed that direct microscale analysis of coral skeletons was possible ...
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(1998)We have studied the mineralogy and petrology of 229 calcium-aluminum-rich inclusions (CAIs) from ten CO3 meteorites of petrologic types 3.0–3.7. Subsets of these inclusions were measured by ion probe for magnesium, calcium, ...
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(2002)The characteristics of single- and multiphase flow through fractured rock are of considerable interest in petroleum and natural gas exploitation as well as in the risk assessment of underground repositories. Flow processes ...
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(1995)The precision of an analytical method has been evaluated objectively by applying the method of Thompson and Howarth (1976) to the analysis in duplicate of 55 igneous rocks covering a range of silicate matrix types and ...
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(2002)A new mole, Mongoloscapter zhegalloi gen. et sp. nov. (Talpinae, Scaptonychini), is described on the basis of a fragmentary lower jaw from the upper part of the Shand Gol Formation of the Tatsin Gol locality. This is the ...
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(1993)A high-temperature, high-pressure optical cell has been developed for the study of aqueous solutions by Raman spectroscopy. The disk-shaped cell has a sample volume of < 1 ml and utilizes diamond or sapphire windows set ...
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(2001)We present a method for measuring radial temperature profiles in laboratory thermal plumes using the deflection of a laser beam that passes through the fluid. Plumes are created by injecting hot corn syrup into a column ...
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(2002)An optimized procedure for the separation of boron from natural river samples and an improved mass spectrometry determination of boron isotopic ratio are presented. The chemical procedure, based on the use of the boron-specific ...
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(2002)Modelling the behaviour of rock masses consisting of a large number of layers is often necessary in mining applications (e.g. coal mining). Such a modelling can be carried out in a discontinuum manner by explicit introduction ...
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(2001)In the last 1000 million years, Australia has been part of two supercontinents: Palaeozoic Gondwanaland and Neoproterozoic Rodinia. Neoproterozoic Australia was covered by shallow epicontinental seas, and, in the late ...
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(2001)Although the astronomical theory of the climate (also known as the “Milankovitch” theory) explains a number of key features of the paleoclimate time series (especially frequency and phase distribution) in terms of orbital ...
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AN OVERVIEW OF ISOTOPIC ANOMALIES IN EXTRATERRESTRIAL MATERIALS AND THEIR NUCLEOSYNTHETIC HERITAGE (2004)Isotopic anomalies are expected in primitive meteorites since astronomical observation and astrophysical modeling of stars predict a great variety of stellar processes. Protostellar clouds should partially preserve the ...
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(2002)A wealth of fundamental information regarding the Earth and solar system is based upon observations of the highly volatile elements He, Ne, Ar, Kr, and Xe. At first, this may seem surprising, considering that these elements ...
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(2002)The availability of synchrotron radiation (SR) to the scientific community has revolutionized the way X-ray science is done in many disciplines, including low temperature geochemistry and environmental science. The key ...
Now showing items 979-998 of 21821