نتایج جستجو برای: gold placer molasse basin
تعداد نتایج: 140743 فیلتر نتایج به سال:
We describe here the results of characterization subsurface structures in an area south-eastern edge Bohemian Massif, Austria by high-resolution geophysical survey techniques and advanced analysis methods potential fields. The employed included field multiscale for source-edge location sources at depth. Our confirmed presence already known structures: Diendorf Fault Moldanubian Shearzone are cl...
The C;~scade Rrcreation Area wi,\ created in 1YX7 to preserve wilderness and heritage recreation opportunities in I67 quxc kilomctres of the northern Cascade Mountain\. The area encompxses the headuatcrs of the Tulamecn. Snnss and Skaist rivers in the Ho~amccn Range\. 10 kilometres southeast of Hope and is hordcred by Manning Provincial Park on the southeast and Skagit Valley Recreation Arca on...
Abstract More than 30% of Germany’s final energy consumption currently results from thermal for heating and cooling in the building sector. One possibility to achieve significant greenhouse gas emission savings space is application aquifer storage (ATES) systems. Hence, this study maps spatial technical potential shallow low-temperature ATES systems Germany. Important criteria efficient operati...
Typomorphic features of placer gold the Anabar region were studied as predictive-exploration criteria. The target study was to determine typomorphic related intermediate sources (paleo-placers) and supposed nearby primary ore occurrences. Two varieties identified. first variety is well-rounded high-fineness lamellar with a highly modified internal structure. This native associated sources, Neog...
Abstract The Bohemian Massif is the relic of a major Paleozoic mountain range that known to have exhumed and its surface levelled in Permian, but Neogene landscape evolution largely unconstrained. characterized by rolling hills extended planation surfaces above an elevation about 500 m. However, at lower elevations deeply incised gorges confined steep hillslopes are abundant contrast impressive...
Neural network potentials trained by first-principles density functional theory total energies were applied to search for global minima of gold nanoclusters within the basin-hopping method. Using Au58 as an example, we found a new putative global minimum which has a core-shell structure of Au10@Au48 and C4 symmetry. This new structure of Au58 is 0.24 eV per formula more stable than the best pre...
Force-directed placers are an attractive approach for placement and are of interest for several reasons. Large standard cell and mixed-size problems are handled seemlessly by such methods. Furthermore, force-directed placers provide continuous trajectories for cell locations and therefore seem quite amenable to timingand congestion-driven placement, physical re-synthesis, and so forth. Unfortun...
We investigate the evolutionary history of the wide-ranging Nearctic treefrog Hyla arenicolor through the integration of extensive range-wide sampling, phylogenetic analyses of multilocus genetic data, and divergence dating. Previous phylogeographic studies of this frog documented a potential signature of introgressive hybridization from an ecologically and morphologically divergent sister spec...
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