نتایج جستجو برای: zonation
تعداد نتایج: 1776 فیلتر نتایج به سال:
Forest dynamics in New Zealand are shaped by catastrophic, landscape-level disturbances (e.g. volcanic eruptions, windstorms and fires). The long return-intervals of these disturbances, combined with the longevity of many of New Zealand’s tree species, restrict empirical investigations of forest dynamics. In combination with empirical data (e.g. palaeoecological reconstructions), simulation mod...
Very large volume (>1000 km of magma) crystal-rich dacitic ignimbrites that lack pronounced evidence of fractional crystallization or vertical zonation erupt in some continental magmatic arcs (e.g. the Lund Tuff of the Great Basin and the Fish Canyon Tuff of Colorado in western USA). Apparently, their magma chambers were only modestly heterogeneous and not systematically zoned from top to botto...
Zonation patterns along elevation and depth gradients are common in rocky intertidal and subtidal ecosystems (Underwood 1985; Foster & Schiel 1985; Hawkins et al. 1992; Bertness et al. 2006; and many others) and universal patterns in taxon composition, richness and abundance have been suggested (e.g. Stephenson & Stephenson
The paper addresses a landslide-prone area on Fruška Gora Mt. in NW Serbia. It proposes a model of relative landslide susceptibility based on fuzzy sets. Having a variety of spatial attributes (proven statistically significant) at disposal, as well as present landslide inventory map, we conducted systematic analysis through (i) assigning fuzzy memberships to attribute categories, and (ii) combi...
Significant zonation in major, minor, trace, and volatile elements has been documented in naturally glassy olivine-hosted melt inclusions from the Siqueiros Fracture Zone and the Galapagos Islands. Components with a higher concentration in the host olivine than in the melt (e.g., MgO, FeO, Cr2O3, and MnO) are depleted at the edges of the zoned melt inclusions relative to their centers, whereas ...
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BACKGROUND Biological invasions affecting rocky intertidal zonation patterns, yield information on species interactions. In the Bay of Antofagasta, northern Chile, the non-indigenous tunicate Pyura praeputialis, originally from Australia, has invaded (in the past century or so) and monopolized a major portion of the mid-intertidal rocky shore, displacing upshore the native mussel Perumytilus pu...
The muscle-type (M4) lactate dehydrogenases of Sebastolobus altivelis, a deep-water scorpaenid, and S. alascanus, a shallower species, are electrophoretically indistinguishable, yet differ in pressure sensitivities. The lactate dehydrogenase of S. altivelis exhibits lower pressure sensitivities of substrate and coenzyme binding and catalytic rate. Such apparently pressure-adaptive kinetic prope...
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