Spurs and Interlocking Spurs - Geography Site.
Unlike V-shaped river valleys, glacial troughs are straight as they have truncated any interlocking spurs which existed prior to glacial advance. Truncated spurs These are where interlocking spurs (the result of meandering river erosion) which predate the glacier are eroded and amputated by the straight-flowing glacier as it drives a path down a valley.
Levees. Levees are natural embankments which are formed when a river floods. When a river floods friction with the floodplain leads to a rapid decrease in the velocity of the river and therefore its capacity to transport material. Larger material is deposited closest to the river bank. This often leads to large, raised mounds being formed.
V-Shaped valleys and interlocking spursIn the upper part of a river, vertical erosion is common creating a steep sided river valley. Interlocking spurs form as the river has to take a winding course due to the highland areas that jut out. WaterfallsThe rock a river flows over is not uniform and waterfall and result after a river has flowed over hard rock and meets a band of soft rock.
An interlocking spur is a natural geographical feature that occurs in the upper course of a river in which downward erosion is the dominant force determining the river's course. As a river wanders between banks that are far apart, the promontories of the hills tend to jut out into the river valley resulting in a staggered formation, interlocked together somewhat like the teeth of a zip.
AQA GCSE Geography A Q1,6,7 Unofficial Markscheme 2017 Watch. Announcements. Moraine,Scree, steep back wall, corrie, cliffs, interlocking spurs? (3) bi) Hanging valley - A hanging valley is created when a tributary glacier joins the main glacier.. Geography A-Level AQA 20 mark essay question Geography - Understand how to describe graphs.
Upland river features (rapids, v-shaped valleys, interlocking spurs etc.) Lowland river features (bluffs, meanders, braiding, levees) Changes in cross profile; It is vital that you show you understand how natural processes alter fluvial landforms in your chosen large drainage basin. No reference will limit your answer to a maximum of 8 marks.
Placing a mark within a level mark band This guidance is to help with the rewarding of responses to the 6- and 9-mark items once the appropriate level mark band has been determined. Level 1 responses will be valid but sketchy and show only basic awareness of the point of the question e.g. simple random points.