Which one of the following minerals exhibits luminescenes when exposed to ultravoilet light ?
In which one of the following mass extinction periods trilobites became extinct ?
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Which one of the following primary sedimentary structures is NOT used for palaeocurrent analysis?
Rivers that receive water from groundwater seepage are termed as
Which one of the following prismatic crystal forms belongs to the hexagonal crystal system ?
Identify the correct match between mineral- ore and its physical property.
Match the mineral deposits in Gourp I with their Indian occurrences in Group II.
A helically coiled ammonite Turrilites is differentiated from externally resembling Gastropoda Turritella by
The facial suture of trilobites running through the genal angle is known as
Which one of the following statements is correct for Class 1B (Parallel) folds ?
In the given map, the X- Y surface has the same orientation as in the Palaeozoic sequence, XY represents
Match the sedimentary features in Group I with the corresponding sedimentary environments of their formation in Group II.
Which one of the following lithostratigraphic units id of Phanerozoic Eon ?
Match the geological processes (Group I) with their examples in Indian stratigraphy (Group II).
Check dams are constructed in association with main dam in the
A geological formation neither containing not transmitting water is termed as
Which one of the following sequences of silicate structures indicates an increasing degree of sharing of corners of (SiO4)4– tetrahedra ?
Match the igneous bodies in Group I with their ages in Group II.
The progressive metamorphic isograd that explains Barrovian metamorphism in pelite is
A sandstone has <5% matrix. The recalculated modal compositions of feldspar, quartz and rock fragments are 45%, 35%, 20%, respectively. The sandstone is classified as
Match the earth layers (Group I) with corresponding approximate thicknesses (Group II).
Pressure (1 GPa = 10 kbar) and temperature at the centre of the Earth are estimated to be