Direction: Read the case study given below and answer any three of th...
Understanding Moraines
Moraines are significant geological features formed by the movement and melting of glaciers. Each type of moraine has distinct characteristics and formation processes. The question specifically addresses the comparison between medial moraines and lateral moraines.
Medial Moraines
- Medial moraines are formed when two glaciers converge, and the debris from their sides gets deposited in the center of the valley.
- They are typically less pronounced and less structured compared to lateral moraines, which are formed along the glacier's sides.
Characteristics of Medial Moraines
- Imperfect Formation: Medial moraines are described as imperfectly formed because they often lack the defined structure and stability seen in lateral moraines.
- Surface Topography: The irregularity in their formation results in varied surface topography, making them less distinguishable and less prominent.
Lateral Moraines
- In contrast, lateral moraines are formed by debris that accumulates along the sides of glaciers.
- They are well-defined ridges that reflect a more stable accumulation of material compared to their medial counterparts.
Conclusion
In summary, the correct answer to the question is option 'A' (Medial), as medial moraines are indeed imperfectly formed when compared to the more stable, well-defined lateral moraines. Their formation process and characteristics highlight their distinction within the moraine classification.
Direction: Read the case study given below and answer any three of th...
The moraine in the center of the glacial valley flanked by lateral moraines is called medial moraine. They are imperfectly formed as compared to lateral moraines. Sometimes medial moraines are indistinguishable from ground moraines.