Intraplate tectonics in stable Europe as related to plate tectonics in the Alpine system     

Dr. Henning Illies 《International Journal of Earth Sciences》1975,64(1):677-699

Western Europe is traversed by the Rhinegraben rift system. The stages of graben formation evolved coincidentally with the culminations of compressional folding in the Alps. Rhinegraben rifting has been controlled by mantle diapirism, but the Alpine orogeny by subduction of lithosphere. Presumably, Alpine subduction forced compensating mantle uplift in the foreland. The Middle Eocene to Oligocene crustal spreading of the Rhinegraben implies a state of stress with a maximum horizontal component parallel to the graben axis (about 20?). In the same area, the Recent average direction of maximum compressive stress is of about 320? (NW), as calculated by in-situ stress measurements, fault-plane solutions of earthquakes and Recent crustal movements. The rotation of the stress components relative to the crust of stable Europe evolved subsequent to counterclockwise rotations of microplates in the Mediterranean. A model is proposed which ascribes these rotations to alterating shear motions of the Afro-Arabian macroplates relative to stable Europe exerting a ball-bearing effect to the intervenient microplates. The postulated motions are in accord with the patterns of inhomogeneous ocean floor spreading east and west of the African plate. The stages of Alpine plate collision had induced a significant readjustment of intraplate stress conditions, and deformation in the cratonic foreland of stable Europe.  相似文献   

The Bayesian bridge between simple and universal kriging   总被引：1，自引：0，他引：1  

Henning Omre  Kjetil B. Halvorsen 《Mathematical Geology》1989,21(7):767-786

Kriging techniques are suited well for evaluation of continuous, spatial phenomena. Bayesian statistics are characterized by using prior qualified guesses on the model parameters. By merging kriging techniques and Bayesian theory, prior guesses may be used in a spatial setting. Partial knowledge of model parameters defines a continuum of models between what is named simple and universal kriging in geostatistical terminology. The Bayesian approach to kriging is developed and discussed, and a case study concerning depth conversion of seismic reflection times is presented.  相似文献   

Bayesian kriging—Merging observations and qualified guesses in kriging     

Henning Omre 《Mathematical Geosciences》1987,19(1):25-39

Frequently a user wants to merge general knowledge of the regionalized variable under study with available observations. Introduction of fake observations is the usual way of doing this. Bayesian kriging allows the user to specify a qualified guess, associated with uncertainty, for the expected surface. The method will provide predictions which are based on both observations and this qualified guess.  相似文献   

Health in the Arctic and climate change     

Henning Sloth Pedersen 《Polar research》2007,26(2):104-106

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Directionally dependent strength and dilatancy behavior of soil–structure interfaces     

Stutz  Hans Henning  Martinez  Alejandro 《Acta Geotechnica》2021,16(9):2805-2820

Acta Geotechnica - Soil–structure interfaces typically exhibit a shear behavior that is independent of the direction of relative displacement due to symmetry in the solid material's...  相似文献   

Alaska in den Jahren 1911, 1912     

Karl L. Henning 《International Journal of Earth Sciences》1914,5(5-6):400-419

Ohne Zusammenfassung  相似文献   

Übersicht der Veröffentlichungen der U. S. Geological Survey von Januar bis Oktober 1910     

Charles L. Henning 《International Journal of Earth Sciences》1911,2(1):42-46

Ohne Zusammenfassung  相似文献   

Der Geologische Atlas der Vereinigten Staaten von Nord-Amerika     

Henning  Karl L. 《International Journal of Earth Sciences》1910,1(6):271-280

Ohne Zusammenfassung  相似文献   

Past glacial and interglacial conditions in the Arctic Ocean and marginal seas – a review     

Dennis A. Darby  Leonid Polyak  Henning A. Bauch 《Progress in Oceanography》2006,71(2-4):129

Past changes in the Arctic Ocean and its marginal seas have been profound, even during the last 10,000 years. Understanding these changes, such as those occurring during the transition from glacial to interglacial climates, are important for research on modern processes, because this knowledge provides a framework and unique perspective in which to view the modern physical and biological processes. This paper discusses our current understanding of past environmental change and processes relative to those currently in progress. Special emphasis is placed on the most recent transition from a glacial state to the modern interglacial conditions.  相似文献   

Metamorphosis of Heteroxenia fuscescens planulae (Cnidaria: octocorallia) is inhibited by crude oil: a novel short term toxicity bioassay     

A. Kushmaro  G. Henning  D.K. Hofmann  Y. Benayahu 《Marine environmental research》1997,43(4):295-302

By using TPA (12-tetra-decanoyl-phorbol-13-acetate) an artificial inducer for metamorphosis, it was possible to determine the effect of crude oil on settlement and metamorphosis of planulae of the soft coral Heteroxenia fuscescens. In the absence of crude oil, TPA induced metamorphosis in 97% of these planulae. The effect of crude oil on metamorphosis and appearance of deformed primary polyps was concentration dependent. Only 50% of the planulae grown in experimental vessels with crude oil at a concentration of 0.1 ppm covering the bottom and walls of the vessels underwent metamorphosis when triggered by TPA. Of those planulae exposed to 100 ppm of the pollutant only 3% metamorphosed after being induced by TPA. Furthermore, oil film on the water surface was less toxic to the larvae than the crude oil covering the bottom and walls of the experimental vessels. Some of the oil treated planulae died, while others remained viable, looked normal, but did not metamorphose after being presented with TPA. These findings suggest that even at very low concentrations crude oil affects larvae of H. fuscescens preventing their settlement and metamorphosis. Therefore it is possible that oil spills affect coral recruitment by decreasing the viability and the settlement of coral planulae. This assay represents a new sensitive bioindicator to detect the impact of oil pollution on tropical and subtropical marine environments.  相似文献