نتایج جستجو برای: الگوریتم zonation

تعداد نتایج: 24137  

Journal: :Science 2013
Yadong Sun Michael M Joachimski Paul B Wignall Chunbo Yan Yanlong Chen Haishui Jiang Lina Wang Xulong Lai

Goudemand et al. replot a subset of our well-constrained data using a new Early Triassic biostratigraphic scheme based on a lower-resolution ammonoid zonation scheme and hypothetical ammonoid-conodont correlation to produce a less distinct seawater temperature history. We dispute their unsubstantiated correlation and, consequently, their allegations.

Sarroud Dam is located in the north of Khorasan Razavi Province in the city of Kalat. Being located in a fault zone, it is necessary to inject the cut-off wall. Using remote sensing techniques, geographic information system, Landsat satellite imagery and field observations in this research, it was specified that the dam has been located within the range of the Sarroud Fault. According to this, ...

1999
Andrew M. Lohrer Robert B. Whitlatch

The strengths of biological processes (e.g., larval settlement, competition, predation, distribution of food resources) and physical factors (e.g., desiccation, freezing, salinity fluctuations) can be correlated with tidal height and may contribute to the vertical zonation of many rocky intertidal organisms. Habitat structural complexity has also been shown to influence the density and diversit...

2014
Timothy Thrippleton Klara Dolos George L. W. Perry Jürgen Groeneveld Björn Reineking

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...

2006
ERIC H. CHRISTIANSEN

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...

2009
Brenda Konar Katrin Iken Matthew Edwards

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

2011
Milos Marjanovic Jan Caha

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...

2014
M. E. Newcombe A. Fabbrizio Youxue Zhang C. Ma M. Le Voyer Y. Guan J. M. Eiler A. E. Saal E. M. Stolper

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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