Fissility is best shown by
Show Hint
- sandstone
- siltstone
- shale
- limestone
The Correct Option is C
Solution and Explanation
Step 1: Understanding the question.
The question asks which rock type best shows fissility, the ability to break into thin layers. Fissility is commonly associated with fine-grained sedimentary rocks.
Step 2: Analyzing the options.
(A) sandstone: Sandstone is not typically fissile; it tends to break in a more granular manner due to its larger particle size.
(B) siltstone: Siltstone is fine-grained and may show some fissility but is not as strongly fissile as shale.
(C) shale: Shale is a fine-grained sedimentary rock that is highly fissile, meaning it easily splits into thin layers.
(D) limestone: Limestone is not fissile, as it is typically a coarser-grained rock.
Step 3: Conclusion.
The correct answer is (C) shale because it is the rock most associated with fissility.
Top IIT JAM GG Geology Questions
- The mineral assemblage found in a granulite facies metabasalt is
- Glossopteris is found in which of the following formations?
- In a sequence of undeformed sedimentary rocks, younger rocks overlie older rocks. This conforms to the principle of
- Dropstones are found in
- The sedimentary structure formed by unidirectional current is
Top IIT JAM GG Sedimentology Questions
- Which one of the following primary sedimentary structures is NOT used for palaeocurrent analysis?
In a sedimentary succession shown in the figure, the last occurrence of the fossil species Q (dated 50 Ma) and the first occurrence of the fossil species R (dated 30 Ma) are recorded at Y and X, respectively. The estimated rate of sedimentation is (assume constant rate of sedimentation).
- In clastic sediments, the correct order of decreasing grain size is
Match the primary sedimentary structure in Group I with the corresponding process of formation in Group II.
\[\begin{array}{|l|l|} \hline \textbf{Group I} & \textbf{Group II} \\ \hline \text{P. Asymmetric ripples} & \text{1. Water escape} \\ \hline \text{Q. Dish and pillar} & \text{2. Bed load transportation of sediments} \\ \hline \text{R. Flute cast} & \text{3. Deposition from alternate traction and suspension load} \\ \hline \text{S. Wavy bedding} & \text{4. Scouring by turbulent eddy} \\ \hline \end{array}\]- Find out the correct statement(s).
Top IIT JAM GG Questions
- The mineral assemblage found in a granulite facies metabasalt is
- Glossopteris is found in which of the following formations?
- In a sequence of undeformed sedimentary rocks, younger rocks overlie older rocks. This conforms to the principle of
- Dropstones are found in
- The sedimentary structure formed by unidirectional current is