The aim of this paper is to model the sensitive of drainage systems to increased regional gradient at both the river-network scale and gully-system scale. The research is applied to a semi-arid region experiencing extensional tectonic activity
. The main assumption made throughout the paper is that large-scale tectonic stresses cause geological blocks to tilt and this has a profound influence on the drainage systems.
This paper reports the investigations aimed at defining some aspects of Quaternary landscape features and their relationships to tectonic structures. The fundamental principles of, and assumptions about, landsurface analysis are presented. After
a brief summary of the most important observations made on the terrace sequences and structural features, the tectonic implications and a hypothetical field-based model are discussed.
The AA. report new field observations on stratigraphy, sedimentology, and geochemical data of plutonic rocks of the Shyok suture zone separaring the Ladakh terane to the SW from the Karakoram terrane to the NE. Six tectonic units have been
distinguished. The AA. outline the geology along a transect in the Nubra-Shyok river valleys. They describe a thick sedimentary-volcanic succession yielding Middle Cretaceous foraminifera. They also discuss the tectonic implications for regional correlation
Andes ; Colombia ; Drainage network ; Fault ; Latin America ; Structural geomorphology ; Tectonic thrust ; Tectonics ; Tropical zone ; Venezuela
This paper intends to present observations of geomorphic and geologic evidence in the Eastern Andan foothills of Colombia and Venezuela, where a well-developed-fold-and-thrust belt is currently growing. In this type of tectonic setting, the analysis
of drainage has proved to be a powerful tool because drainage system are highly sensitive to slow vertical tectonic processes related to subtle folding and thrust faulting.
The effect of the Late Cenozoic tectonics (neotectonics) and their associated morphotectonics on the Nile Delta basin since the Late Miocene are discussed. The Nile Delta site seems to be affected by basement-related tectonics as it is located
survey and aerial photointerpretation. Successively all the morphological elements that might provide evidence for tectonic deformations were identified. Moreover the statistical of stream directions have shown some preferential orientations indicating
Impact of tectonics on alluvial landforms in the Hexi Corridor, Northwest China
Alluvial cone ; Cenozoic ; China ; Fault ; Fluvial processes ; Fluvial terrace ; North-Western China ; Tectonics ; Vertical movement
The Hexi Corridor is a Cenozoic foreland basin system on the northeast margin of the Qinghai-Tibet Plateau. The structure is characterised by reverse faults trending NNW or WNW. This paper focuses on the response of alluvial landforms to tectonic
The possible interactions between tectonics and landform formation in an active chain are examined by considering the case example of the Southern Apennines fold-and-thrust belt, in which frontal accretion and back-arc extension coexisted. The study
of the morphotectonic evolution of the belt in order to obtain a chronologically constrained reconstruction of the tectonic and erosional events occurred.
undergoing active deformation and related geomorphic transition. This review provides an opportunity to examine the feedback among extensional tectonics, topography, and erosion, and to evaluate the formation of characteristics landforms during mountain
Field observation combined with remote sensing, employing both Landsat images and aerial photographs, and the analysis of topographic, geomorphological and geological maps show that the regional contrasts in seismicity and associated tectonic
activity are reflected in differences in morphology along the coast. Six distinct morphotectonic zones are identified on the basis of their correlation with regional tectonics and areas of differing levels of seimicity. A range of geomorphological evidence
, including marine and river terraces, uplifted coastal notches and elevated wave-cut platforms indicates active tectonic uplift along the margin.
Lithological evidence for the evolution of weathered mantles in Uganda by tectonically controlled cycles of deep weathering and stripping
Geochemistry ; Lithology ; Mineralogy ; Model ; Stratigraphy ; Tectonics ; Uganda ; Vertical movement ; Weathering
In this study, a tectonic model of landscape evolution recently developed for Uganda, was tested by detailed study of the weathered mantle. The study involved an analysis of weathered-mantle stratigraphy, texture, mineralogy and elemental
Late Pliocene and Pleistocene reversal of drainage systems in northern Israel : tectonic implications
Drainage ; Fault ; Israel ; Model ; Pleistocene ; Pliocene ; Rift ; Slope gradient ; Tectonics ; Watershed
The AA. reconstruct the drainage system development in northern Israel west of the Dead Sea Transform and Rift (DSTR) valley, and explain this development in relation to tectonic activity that took place in the region during the Quaternary
between the buried tectonic structures and the morphological features appearing at the surface. It is possible to reconstruct elements of the tectonic and denudational history of the region and show that during Quaternary times lineaments controlled
The aims of this work are : to improve the knowledge of the structural arrangement of some Italian areas affected by tectonics active in recent or historical times, and to aid the individuation of possible strike-slip faults of regional importance
Earthquake ; Fault ; Honshu ; Japan ; Marine terrace ; Seismicity ; Strike-slip fault ; Tectonics ; Vertical movement
Horizontal ground displacement associated with the 1995 Kobe earthquake reflects the developmental process of a block mountain under tectonic E-W compression. The focal mechanism of the earthquake is of the strike-slip type. Surface faults specify
was used to reconstruct the geomorphological evolution of Monte Vulture. The evolution was strongly influenced by recent tectonic activity linked to 4 main tectonic directions NW-SE, NE-SW, E-W, N-S oriented.
California ; Desert ; Lake level ; Palaeo-environment ; Palaeolake ; Pleistocene ; Pluvial ; Quaternary ; Tectonics ; United States of America
shorelines were probably formed by the Blackwelder stand and subsequently displaced , tectonically, due to transpression in the northeastern Mojave Desert and NW-SE extension across Death Valley. This tectonic regime would result in subsidence of Death Valley