Oberrheinisches Grundgebirge und Rheingraben

Illies, Henning

doi:10.1007/bf01840083

Cited by 20 publications

(3 citation statements)

References 4 publications

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“…In the URG area a further important Variscan trend is documented by NNE (Rhenish) oriented, sinistral fault zones that are associated with Lower Carboniferous to Permian intrusive bodies and dyke swarms which outcrop in the basement of the Vosges and the Black Forest, as well as in the Odenwald Mountains. Already a long time ago, this led to the assumption that a broad late Variscan shear zone formed a precursor of the Cenozoic URG [ Cloos , 1922; Illies , 1962]. Subsequently, geophysical data and regional kinematic analyses [ Edel and Weber , 1995, and references therein] provided additional evidence for a major NNE striking late Variscan sinistral transform system transecting the URG area.…”

Section: Prerift Settingmentioning

confidence: 99%

Upper Rhine Graben: Role of preexisting structures during rift evolution

2002

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The evolution of the Cenozoic Upper Rhine Graben was controlled by a repeatedly changing stress field and the reactivation of a complex set of crustal discontinuities that had come into evidence during Permo‐Carboniferous times. A comparison of the spatial and temporal thickness distribution of synrift deposits with preexisting fault patterns permits to infer a sequence of distinct basin subsidence phases that can be related to changes in the ambient stress field. Reactivation of a system of late Palaeozoic fault systems, outlining troughs and highs, controlled the nucleation of initially separated middle and late Eocene basins, the depocenters of which coincided with a preexisting WSW‐ENE trend. During Oligocene crustal extension the individual basins coalesced, resulting in the development of the SSW‐NNE striking Upper Rhine Graben. During the late Oligocene (Chattian) change in stress field, the Upper Rhine Graben was probably reactivated as a dextral strike‐slip system with the central graben segment forming a releasing bend. During the early Miocene (Aquitanian), a major reorientation of the regional stress field is held responsible for the main subsidence phase of the northern parts of the Upper Rhine Graben. This is reflected by a counterclockwise rotation and northeastward shift of the depocenter axis and later by the middle Miocene uplift and erosion of the southern parts of the Upper Rhine Graben. During the Plio‐Quaternary, the Upper Rhine Graben was reactivated as a sinistral strike‐slip system with the central graben segment forming a restraining bend.

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Section: Prerift Settingmentioning

confidence: 99%

Upper Rhine Graben: Role of preexisting structures during rift evolution

2002

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“…The Variscan trend is dominant and characterized by NNE oriented left-lateral faults which are synchronously formed with the Lower Carboniferous-Permian intrusives outcropping in the basement of the Vosges Mountains in France,the Black Forest in Germany, and the Odenwald Mountains in Germany. This led Cloos (1922) and Illies (1962) to assume that the Late Variscan Shear Zone area is a precursor of the later on formed URG in Cenozoic time. Furthermore, the geophysical and tectonostratigraphic data in Edel and Weber (1995) and also in Schumacher (2002) proposed additional evidence on a major NNE trending Late Variscan shear system dissecting the area of the Upper Rhine Graben.…”

Section: Landau Area and The Upper Rhine Grabenmentioning

confidence: 99%

Active Structures in Central Upper Rhine Graben, Sw Germany: New Data From Landau Area Using Electromagnetic Radiation (Emr) Technique

2018

Egyptian Journal of Geology

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“…The main longitudinal abiotic changes include flow (Gore, 1994;Lake et al, 1986;Statzner and Higler, 1986), substratum (Schumm, 1977(Schumm, , 1985Selby, 1985), form and size of the riverbed (Rosgen, 1994(Rosgen, , 1996 as well as temperature (Illies, 1961(Illies, , 1962Vannote and Sweeney, 1980). Modifications also occur in the sources and amounts of allochthonous and autochthonous primary production Giller and Malmqvist, 1998).…”

Section: Introductionmentioning

confidence: 95%

Seasonal changes of abiotic and biotic gradients downstream a multiple use reservoir in a Mediterranean River

Lucadamo

Mezzotero

Voelz

et al. 2010

River Research & Apps

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The effect of regulated flow regimentation on hydrogeomorphological variables, autochthonous and allochthonous trophic sources and macroinvertebrates communities of the Mucone River, Calabria (Italy) were studied in May, August and November 2005 at three study sites.The first site (M1) was located close to the impoundment, the second one (M2) immediately upstream from the first permanent tributary (Cerreto stream) and the third one (M3) about 1 km downstream from the Cerreto confluence.Our results suggest that hydrogeomorphological gradients already exist in spring but their strongest development, with major consequences for the lotic biota, take place only with the beginning and ending of the dry season.Reduction of river width, shading due to well preserved riparian alder trees and marked sand deposition in November, were the variables negatively affecting epilithic microalgae biomass at site M1. These factors partially relieved at M2 site and became much less important at M3 resulting in the highest levels of autotrophic periphyton production.Coarse particulate organic matter accumulation exhibited an opposite trend due to the lack of discharge peaks at M1, whereas in November, litter fall removed most differences between stations.In May macrozoobenthic communities of the three stations were relatively similar (reophilous gatherer and scraper taxa). In November sand accumulation reduced spatial heterogeneity and habitats density close to the Cecita dam promoting settlement of shredder sand tolerant taxa (Plecoptera: Leuctridae) and a drop of community biodiversity. Flow reactivation, especially after Cerreto confluence, hindered sand accumulation, favoured autochthonous primary production and increased energy sources for macroinvertebrates.

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Oberrheinisches Grundgebirge und Rheingraben

Cited by 20 publications

References 4 publications

Upper Rhine Graben: Role of preexisting structures during rift evolution

Upper Rhine Graben: Role of preexisting structures during rift evolution

Active Structures in Central Upper Rhine Graben, Sw Germany: New Data From Landau Area Using Electromagnetic Radiation (Emr) Technique

Seasonal changes of abiotic and biotic gradients downstream a multiple use reservoir in a Mediterranean River

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