Results 221 to 230 of about 36,414 (282)
A highly diverse Pennsylvanian tetrapod ichnoassemblage from the Semily Formation (Krkonoše Piedmont Basin, Czechia). [PDF]
PeerJCalábková G, Březina J, Nádaskay R.
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
1983
Alluvial fans are conical, lobate, or arcuate accumulations of predominantly coarse-grained clastics extending from a mountain front or escarpment across an adjacent lowland. They represent the coarsest, most poorly sorted, proximal unit in the range of subaerial depositional systems, and commonly merge downdip into finer grained, lower gradient ...
W. E. Galloway, D. K. Hobday
openaire +1 more source
Alluvial fans are conical, lobate, or arcuate accumulations of predominantly coarse-grained clastics extending from a mountain front or escarpment across an adjacent lowland. They represent the coarsest, most poorly sorted, proximal unit in the range of subaerial depositional systems, and commonly merge downdip into finer grained, lower gradient ...
W. E. Galloway, D. K. Hobday
openaire +1 more source
Modelling alluvial fan morphology
Earth Surface Processes and Landforms, 1999A mathematical model which estimates the scale-independent sediment surface profile of alluvial fans has been developed. This model utilizes a diffusive sediment transport model and an unsteady, radial flow, conservation relationship. These equations are approximately solved assuming a quasi-steady-state closure with appropriate modelling assumptions ...
Lawrence J. De Chant +2 more
openaire +1 more source
1965
NOTE: Text or symbols on renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Alluvial fans were studied in the field, largely in the desert regions of California, and in the laboratory. Field study consisted of detailed mapping of ages and sizes of debris, channel patterns, and deposits of different types on parts
openaire +1 more source
NOTE: Text or symbols on renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Alluvial fans were studied in the field, largely in the desert regions of California, and in the laboratory. Field study consisted of detailed mapping of ages and sizes of debris, channel patterns, and deposits of different types on parts
openaire +1 more source
AAPG Bulletin, 1982
Braided streams dominate environments characterized by high sediment load and flashy discharge. Although coarse-grained braided alluvium is most abundant today in association with semiarid to arid alluvial fans, several authors have speculated about the effects that a lack of terrestrial vegetation may have had on sedimentation prior to the late ...
openaire +1 more source
Braided streams dominate environments characterized by high sediment load and flashy discharge. Although coarse-grained braided alluvium is most abundant today in association with semiarid to arid alluvial fans, several authors have speculated about the effects that a lack of terrestrial vegetation may have had on sedimentation prior to the late ...
openaire +1 more source
Alluvial Fan Depositional System
2018Alluvial fans are developed at valley exits. They are formed mainly by the current scour of temporary flood and are characterized by a limited scope, shape similar to a conical piedmont, and coarse fragmented debris. They scatter radially from the valley entry to the basin, and the plane form of an alluvial fan appears similar to a cone or a fan.
Xinghe Yu, Shengli Li, Shunli Li
openaire +1 more source
Alluvial Fan Processes and Forms
1994Alluvial fans are a prominent landform type commonly present where a channel emerges from mountainous uplands to an adjoining valley. Although occurring in perhaps all global climatic regimes, fans in deserts traditionally have been the most studied due to their excellent exposure and ease of access.
Terence C. Blair, John G. McPherson
openaire +1 more source
2018
The age of a fan surface marks the end of the merging of lobes as part of the depositional fan buildup and the approximate time that elapsed since the start of trenching and abandonment of the fan surface. A wide scatter of ages over one fan results from the time needed to gradually tie lobes together into one alluvial fan unit.
openaire +1 more source
The age of a fan surface marks the end of the merging of lobes as part of the depositional fan buildup and the approximate time that elapsed since the start of trenching and abandonment of the fan surface. A wide scatter of ages over one fan results from the time needed to gradually tie lobes together into one alluvial fan unit.
openaire +1 more source
Geological Society of America Bulletin, 1931
General Description When one travels southeastward from the Capitol at Washington he crosses Anacostia River and climbs a rather steep elevation known as Good Hope Hill. The western slope of this hill is composed of bedded deposits of Cretaceous and Tertiary ages, but the summit is capped by unconsolidated gravel and sand of a much younger formation ...
openaire +1 more source
General Description When one travels southeastward from the Capitol at Washington he crosses Anacostia River and climbs a rather steep elevation known as Good Hope Hill. The western slope of this hill is composed of bedded deposits of Cretaceous and Tertiary ages, but the summit is capped by unconsolidated gravel and sand of a much younger formation ...
openaire +1 more source