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Which type of cross- bedding cannot be used to tell top and bottom :
- a)Tabular cross- bedding.
- b)Planar cross- bedding.
- c)Lenticular cross- bedding.
- d)Wedge- shaped cross- bedding.
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which type of cross- bedding cannot be used to tell top and bottom :a)...
Understanding Cross-Bedding Types
Cross-bedding is a sedimentary structure formed by the deposition of sediment in inclined layers, which can provide insights into past environments and sediment transport directions. Different types of cross-bedding have distinct characteristics.
Types of Cross-Bedding
- Tabular Cross-Bedding:
- Characterized by relatively horizontal layers.
- Can often indicate flow direction and has clear top and bottom features.
- Planar Cross-Bedding:
- Consists of flat, inclined layers that are more uniform.
- Lacks pronounced features to indicate top or bottom orientation.
- Because of its uniformity, it can be challenging to discern the original sedimentary features.
- Lenticular Cross-Bedding:
- Exhibits irregular, lens-shaped patterns.
- Often associated with fluctuating sedimentary processes, helping to identify flow direction.
- Wedge-Shaped Cross-Bedding:
- Forms in a more pronounced angle and can indicate the direction of sediment transport.
- Typically has clear top and bottom features that can be recognized.
Why Planar Cross-Bedding Cannot Indicate Top and Bottom
The reason planar cross-bedding (option B) is less effective in indicating top and bottom orientation lies in its uniform structure. Unlike other types, it does not show distinct physical characteristics or changes in grain size that can help identify which side was deposited first. As a result, geologists may struggle to determine the original depositional environment solely based on planar cross-bedding.
Conclusion
In summary, while various types of cross-bedding can provide valuable information about sedimentary processes, planar cross-bedding stands out for its inability to clearly indicate top and bottom due to its lack of distinctive features.
Cross-bedding is a sedimentary structure formed by the deposition of sediment in inclined layers, which can provide insights into past environments and sediment transport directions. Different types of cross-bedding have distinct characteristics.
Types of Cross-Bedding
- Tabular Cross-Bedding:
- Characterized by relatively horizontal layers.
- Can often indicate flow direction and has clear top and bottom features.
- Planar Cross-Bedding:
- Consists of flat, inclined layers that are more uniform.
- Lacks pronounced features to indicate top or bottom orientation.
- Because of its uniformity, it can be challenging to discern the original sedimentary features.
- Lenticular Cross-Bedding:
- Exhibits irregular, lens-shaped patterns.
- Often associated with fluctuating sedimentary processes, helping to identify flow direction.
- Wedge-Shaped Cross-Bedding:
- Forms in a more pronounced angle and can indicate the direction of sediment transport.
- Typically has clear top and bottom features that can be recognized.
Why Planar Cross-Bedding Cannot Indicate Top and Bottom
The reason planar cross-bedding (option B) is less effective in indicating top and bottom orientation lies in its uniform structure. Unlike other types, it does not show distinct physical characteristics or changes in grain size that can help identify which side was deposited first. As a result, geologists may struggle to determine the original depositional environment solely based on planar cross-bedding.
Conclusion
In summary, while various types of cross-bedding can provide valuable information about sedimentary processes, planar cross-bedding stands out for its inability to clearly indicate top and bottom due to its lack of distinctive features.
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Which type of cross- bedding cannot be used to tell top and bottom :a)Tabular cross- bedding.b)Planar cross- bedding.c)Lenticular cross- bedding.d)Wedge- shaped cross- bedding.Correct answer is option 'B'. Can you explain this answer? for IIT JAM 2025 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about Which type of cross- bedding cannot be used to tell top and bottom :a)Tabular cross- bedding.b)Planar cross- bedding.c)Lenticular cross- bedding.d)Wedge- shaped cross- bedding.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for IIT JAM 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which type of cross- bedding cannot be used to tell top and bottom :a)Tabular cross- bedding.b)Planar cross- bedding.c)Lenticular cross- bedding.d)Wedge- shaped cross- bedding.Correct answer is option 'B'. Can you explain this answer?.
Which type of cross- bedding cannot be used to tell top and bottom :a)Tabular cross- bedding.b)Planar cross- bedding.c)Lenticular cross- bedding.d)Wedge- shaped cross- bedding.Correct answer is option 'B'. Can you explain this answer? for IIT JAM 2025 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about Which type of cross- bedding cannot be used to tell top and bottom :a)Tabular cross- bedding.b)Planar cross- bedding.c)Lenticular cross- bedding.d)Wedge- shaped cross- bedding.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for IIT JAM 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which type of cross- bedding cannot be used to tell top and bottom :a)Tabular cross- bedding.b)Planar cross- bedding.c)Lenticular cross- bedding.d)Wedge- shaped cross- bedding.Correct answer is option 'B'. Can you explain this answer?.
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