Upward-fining layers in a point bar indicate which process?
Answer and explanation
Correct answer: Gradual deposition during meander migration
The governing concept is fluvial deposition in a meandering channel. A point bar forms on the inner, slower-flowing side of a bend, where sediment is deposited progressively as the bar grows. Coarser grains generally settle first and finer particles later, producing upward fining. This records gradual deposition during lateral meander migration, so option D is correct; the other choices describe marine, glacial, or karst processes.
Frequently asked questions
What is the correct answer to this question?
Gradual deposition during meander migration
Why is this the correct answer?
The governing concept is fluvial deposition in a meandering channel. A point bar forms on the inner, slower-flowing side of a bend, where sediment is deposited progressively as the bar grows. Coarser grains generally settle first and finer particles later, producing upward fining. This records gradual deposition during lateral meander migration, so option D is correct; the other choices describe marine, glacial, or karst processes.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bank Reconciliation Statement. Topic: Reconciling cash book and passbook differences.
