The correct staratigraphic sequence of the following Vindhyan rocks from older to younger, is : A. Rewa Group Choose the correct answer from the options given below :
B. Semri Group
C. Bhander Group
D. Kaimur Group
The question requires identifying the correct chronological order of specific Vindhyan rock groups, from the oldest to the youngest.
The Vindhyan Supergroup represents a major Proterozoic sedimentary basin in India. The relevant groups mentioned are:
The established stratigraphic sequence for these upper parts of the Vindhyan Supergroup, from oldest to youngest, is:
Matching the groups to their corresponding letters:
Therefore, the sequence of Vindhyan rocks from older to younger is represented by the letters B, D, A, C.
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Gypsum has lower density than anhydrite.
Reason (R) : Hydrated minerals tend to expand many times the original volume of the anhydrous minerals.
In the light of the above statements, choose the most appropriate answer from the options given below :
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Drumlins show features opposite to those of Roches Moutonnees.
Reason (R) : The stoss side is steep and the lee side is roughened.
In the light of the above statements, choose the most appropriate answer from the options given below :
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : In a hand specimen quartz can be easily distinguished from orthoclase.
Reason (R) : Orthoclase has lower refractive index than quartz.
In the light of the above statements, choose the most appropriate answer from the options given below :
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Chronostratigraphy is concerned with the mutual time relationship of strata.
Reason (R) : Formation, member and bed are units of chronostratigraphy.
In the light of the above statements, choose the most appropriate answer from the options given below :
Match List - I with List - II.
| List - I Mineral Property | List - II Type of light |
|---|---|
| A. Cleavage | I. Plane polarized |
| B. Twinkling | II. Ordinary |
| C. Twinning | III. Crossed nicols |
| D. Disperson | IV. Convergent |
Choose the correct answer from the options given below :
Match List - I with List - II.
| List - I Optical feature | List - II Optical diagram |
|---|---|
| A. Wave front (isotropic) | I. Ellipse |
| B. Wave surface (isotropic) | II. Sphere |
| C. Wave front (anisotropic) | III. ellipsoidal |
| D. Wave surface (anisotropic) | IV. circle |
Choose the correct answer from the options given below :