Fluvial relief ( Latin fluvius - stream) - a set of exogenous relief forms created due to the geological action of temporary or permanent watercourses .
Content
- 1 Fluvial processes
- 2 landforms
- 2.1 Created by temporary streams
- 2.2 Created by permanent streams
- 3 See also
- 4 notes
- 5 Literature
Fluvial processes
The totality of geomorphological processes caused by fluid waters is called fluvial. In a narrow sense, fluvial processes are geomorphological processes associated with the action of watercourses (channel streams) and leading to the development of erosive and accumulative landforms. Sometimes, the term is expanded, referring to fluvial processes and the deluvial process .
Watercourses perform three types of geological work: destruction, transfer of destruction products and their accumulation .
Among the main exogenous processes (according to V. Stetsyuk and I. Kovalchuk), the following processes are associated with the effects of temporary or permanent watercourses [1] :
| Process types | Display in relief (typical elementary forms) | |
|---|---|---|
| Denudation | linear erosion | furrows, ravines, ravines, erosion ledges |
| lateral erosion | meanders, channel ledges | |
| Accumulative | alluvial | floodplains, beaches, braids, rifts, coastal shafts |
| proluvial | loops, drift cones, clay piedmont plains | |
| alluvial-proluvial | weakly inclined flat plains | |
| delta | lowland plains with fan-like distribution of ducts and sleeves | |
Landforms
Created by temporary streams
The genetic series of relief forms created by the geological action of temporary watercourses is represented by such forms: erosion groove , ravine , ravine , beam .
| The form relief | Morphometric characteristics | Picture | |||
|---|---|---|---|---|---|
| Depth | Width | The form | Scheme | Photo | |
| Erosion furrow | 3 - 30 cm | ||||
| Scour | up to 1 - 2 m | 2 - 2.5 m | |||
| Ravine | |||||
| Beam | |||||
Created by Permanent Watercourses
- river valley
- slopes of the river valley
- river terraces
- floodplain
- slopes of the river valley
Also, the fluvial relief forms include a blow-out cone .
See also
- Fluvioglacial processes
Notes
- ↑ Paranko I. C. Geology with the basics of geomorphology. Navalny posіbnik / І. S. Paranko, A.O. Sіvoronov, O. І. Mamedov. - Kriviy Rig: Mineral, 2008 .-- S. 136—137
Literature
- Fluvial geomorphosystems: pre-development of the Kharkiv geomorphological school, - science editor I. G. Chervanov, - Kharkiv - 2006 p.
- Paranko I. C. Geology with the basics of geomorphology. Navalny posіbnik / І. S. Paranko, A.O. Sіvoronov , O. І. Mamedov. - Kriviy Rig: Mineral, 2008 .-- 323 p. s іl.
- Rychagov G.I. General Geomorphology / G. Rychagov / 3rd ed., Revised. and add. - M.: Publishing House Mosk. University: Nauka, 2006 .-- 416 p.