Titlebook: Extinction Events in Earth History; Proceedings of the P Erle G. Kauffman,Otto H. Walliser Conference proceedings 1990 Springer-Verlag Berl

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書目名稱Extinction Events in Earth History影響因子(影響力)




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書目名稱Extinction Events in Earth History讀者反饋




書目名稱Extinction Events in Earth History讀者反饋學(xué)科排名

abysmal

Biological selectivity of extinction,ion of causality. Heritable differences in characters may have predictable consequences in terms of differential species survival. Differences in magnitude and intensity of extinction are insufficient to distinguish background from mass extinction regimes. Biological adaptations may establish links

Boycott

Melanocytes

Shock pressures in igneous processes: Implications for K/T events,sure of about 500 kbar. Such pressures fall off with distance from the magma chamber although jointing, fractures, etc. may act as stress concentrators to extend the radius of formation of shocked minerals as far as a kilometer. Shocked minerals are not to be expected from the magma itself as high t

PACT

Vertical advection from oxic or anoxic water from the main pycnocline as a cause of rapid extinction based on photosynthesis. Waters from the main pycnocline (100–1000 m) or deeper naturally contain decay products from sinking organic matter as a function of the oxidation state of the waters. Such products, in proper concentrations, can inhibit photosynthetic growth or are toxic or debilitating t

過度

Evolutionary crisis within the Ordovician acrotretid inarticulate brachiopods of Poland,pt for three genera of the . line going up to the Silurian and of the . line going on to the Lower Devonian. In Poland, acrotretids are very diversified in Ordovician, especially in the Lower Ordovician/Upper Tremadocian-Llanvirnian), similarly as e.g. in Balto-Scandia (Sweden, Estonia, Leningrad en

過度

我要威脅

Silurian and pre-Upper Devonian bio-events,ble with shelly benthos are bio-events in the C.–C. interval of the Upper Llandovery, in the early Wenlock, late Wenlock, late Ludlow, Silurian-Devonian boundary, near the base of the Emsian, near the end of the Eifelian, and near the end of the Givetian. The last two coincide in time with what may

光亮

sparse

The Middle Givetian ,-Events a tool for high time resolution and event-stratigraphical correlation,rica. Their exceptional character is not only based on the mass occurrence of “.” . (a small brachiopod), but also on additional biofacial and special sedimentological features. Due to their synchronous, extremely short-term deposition the . Horizons are excellent index horizons for a basin-wide cor