Application of paleomagnetic and10Be Analyses to Chronostratigraphy of Alpine Glacio-Fluvial Terraces, Sava River Valley, Slovenia

2013 ◽  
pp. 263-275 ◽  
Author(s):  
Milan J. Pavich ◽  
Nataša Vidic
Keyword(s):  
River Valley ◽  
Fluvial Terraces ◽  
Sava River

scholarly journals Integrated geological and geophysical study of the Tagil river valley morphology in its middle course

2021 ◽  
Vol 6 ◽  
pp. 24-31
Author(s):  
Aleksei V. Kuzin ◽  
Keyword(s):  
Physical Properties ◽  
River Valley ◽  
Valley Floor ◽  
Eastern Slope ◽  
The Urals ◽  
Fluvial Terrace ◽  
Fluvial Terraces ◽  
Geophysical Study ◽  
Sand And Gravel ◽  
Gravel Deposit

Relevance. Integrated geological and geophysical studies of a bridge in the Makhnevo village area are considered in the frame of the Urals eastern slope geology. Research objective is to study the lithology of the underlying part of the valley floor, determine soil physical and mechanical characteristics, and study a complex of fluvial terraces. Results. Relief elevations across the river valley have been studied, and four main fluvial terrace levels typical of the Urals eastern slope have been identified. An unstable section of the streambed with a canyonshaped valley above the neotectonic unwarping zone has been identified. The geological section of the river’s floodplain and streambed were studied based on geological and geophysical data. A change in the physical properties of glauconite sandstones and clays of Paleogene age in the recent underlying part of the river valley has been established. Layers of sand and glauconite sandstone that can be developed have been found at the new bridge site near the existing sand and gravel deposit. Conclusions. A complex of terraces of the Tagil river valley in its middle course is typical for the Urals eastern slope. The paleovalley is cut into a Paleogene glauconite sandstone layer. In the underlying part of the valley floor, changes in sandstones and clays physical properties have been recorded, and the presence of hypogene minerals was revealed. These are the signs of possible neotectonic processes in the series of the Cenozoic and Quaternary deposits.

scholarly journals Paleo-Drainage Network, Morphotectonics, and Fluvial Terraces: Clues from the Verde Stream in the Middle Sangro River (Central Italy)

Geosciences ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 337 ◽  
Author(s):  
Enrico Miccadei ◽  
Cristiano Carabella ◽  
Giorgio Paglia ◽  
Tommaso Piacentini
Keyword(s):  
Drainage Basin ◽  
Central Italy ◽  
General Setting ◽  
River Valley ◽  
Drainage Network ◽  
Fluvial Terraces ◽  
Field Evidence ◽  
Basin Scale ◽  
The Impact

This work analyzes the role of paleo-drainage network, morphotectonics, and surface processes in landscape evolution in a sector of the transition zone between the chain and the piedmont area of Central Apennines. Particularly, it focuses on the Verde Stream, a tributary of the middle Sangro River valley, which flows in the southeastern Abruzzo area at the boundary with the Molise region. The Verde Stream was investigated through a drainage basin scale geomorphological analysis incorporating the morphometry of the orography and hydrography, structural geomorphological field mapping, and the investigation of morphological field evidence of tectonics with their statistical azimuthal distributions. The local data obtained were compared with the analysis of the middle Sangro River valley and the tectonic features of the Abruzzo–Molise area. This approach led us to also provide relevant clues about the definition of the role of karst features and paleo-landscapes in the general setting of the study area and to identify the impact of active tectonics, confirmed by recent and active seismicity. In conclusion, the paper contributes to defining the main stages of the geomorphological evolution of this area, driven by uplift and local tectonics and due to a combination of fluvial, karst, and landslide processes.

Drainage outflow in different pipe-drainage variants on gleyic podzoluvisol in the Sava River Valley

2004 ◽  
Vol 53 (1) ◽  
pp. 17-27 ◽  
Author(s):  
D. Petošić ◽  
L. Tadić ◽  
D. Romić ◽  
F. Tomić
Keyword(s):  
River Valley ◽  
Sava River ◽  
The Sava River

Fluvial terraces and their implications for Weihe River valley evolution in the Sanyangchuan Basin

2017 ◽  
Vol 60 (3) ◽  
pp. 413-427 ◽  
Author(s):  
HongShan Gao ◽  
ZongMeng Li ◽  
XiaoFeng Liu ◽  
BaoTian Pan ◽  
YaJie Wu ◽  
...  
Keyword(s):  
River Valley ◽  
Fluvial Terraces ◽  
Weihe River

scholarly journals A multi-proxy assessment of terrace formation in the lower Trinity River valley, Texas

2021 ◽  
Author(s):  
Hima J. Hassenruck-Gudipati ◽  
Thaddeus S. Ellis ◽  
Timothy A. Goudge ◽  
David Mohrig
Keyword(s):  
Sea Level ◽  
Late Pleistocene ◽  
Environmental Changes ◽  
River Valley ◽  
Airborne Lidar ◽  
Formation Mechanisms ◽  
Lateral Migration ◽  
Trinity River ◽  
Fluvial Terraces ◽  
The Trinity

Abstract. A proposed null hypothesis for fluvial terrace formation is that internally generated or autogenic processes such as lateral migration and river-bend cutoff produce variabilities in channel incision that lead to the abandonment of floodplain segments as terraces. Alternatively, fluvial terraces have the potential to record past environmental changes from external forcings that include temporal changes in sea-level and hydroclimate. Terraces in the Trinity River valley have been previously characterized as Deweyville groups and interpreted to record episodic cut and fill during late Pleistocene sea-level variations. Our study uses high-resolution topography of a bare-earth digital elevation model derived from airborne lidar surveys along ~88 linear km of the modern river valley. We measure both differences in terrace elevations and widths of paleo-channels preserved on these terraces in order to have two independent constraints on terrace formation mechanisms. For 52 distinct terraces, we quantify whether there is a clustering of terrace elevations – expected for allogenic terrace formation tied to punctuated sea-level and/or hydroclimate change – by comparing variability in a chosen set of terrace elevations against variability associated with randomly selected terrace sets. Results show Deweyville groups record an initial valley floor abandoning driven by allogenic forcing, which transitions into autogenic forcing for the formation of younger terraces. For 79 paleo-channel segments preserved on these terraces, we connected observed changes in paleo-channel widths to estimates for river paleo-hydrology over time. Our measurements suggest the discharge of the Trinity River has changed systematically by a factor of ~2 during the late Pleistocene. Methods introduced here combine river-reach scale observations of terrace sets and paleohydrology with local observations of adjacent terrace-elevation change and paleo-channel bend number to show how interpretations of allogenic versus autogenic terrace formation can be evaluated within a single river system.

CIRCLING BACK: CHRONICLE OF A TEXAS RIVER VALLEY

1997 ◽  
Vol 16 (1) ◽  
pp. 133-134
Author(s):  
Joanne M. Westphal
Keyword(s):  
River Valley
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