Geologist Junior • Geology Paper-II
The Indian example of a type of remnant ocean basins under the tectonic class of Convergent Settings is
A)
Cuddapah Basin
B)
Cambay Basin
C)
Bay of Bengal Basin
D)
Vindhyan Basin
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Vindhyan Basin' (Option D).
Geologist Junior • Geology Paper-II
Itai-Itai is a chronic disease which claimed many lives in Japan’s Zintsu River Basin. The incidence was related to ignored mine waste disposal of mining operation for
A)
lead, zinc and cadmium.
B)
copper, molybdenum and boron.
C)
uranium, sulphur and chromium.
D)
thorium, osmium and mercury.
Based on established principles in Environment & Ecology, the correct and most appropriate choice is 'thorium, osmium and mercury.' (Option D).
Geologist Junior • Geology Paper-II
The retardation produced by gypsum plate is
A)
230 nm
B)
147 nm
C)
550 nm
D)
430 nm
Based on established principles in Geology & Mining, the correct and most appropriate choice is '430 nm' (Option D).
Geologist Junior • Geology Paper-II
Sedimentary structures having directional features help in Paleocurrent analysis which are presented as
A)
cross-stratification.
B)
asymmetric ripples.
C)
groove marks.
D)
rose diagram.
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'rose diagram.' (Option D).
Geologist Junior • Geology Paper-II
For a given segment of shoreline, the total volume of sand added to the beach can be balanced to losses. The “beach budget” is in deficit and coastal erosion took place when
A)
Influx exceeds losses.
B)
there is a sea level fall.
C)
Dam is constructed in the river mouth.
D)
Both (a) and (b)
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'there is a sea level fall.' (Option B).
Geologist Junior • Geology Paper-II
Kimberlite rocks are usually abnormally high in the major oxide weight percentage of
A)
Al2O3, Fe3O4 and H2O-.
B)
Na2O, FeO and K2O.
C)
MgO, CaO and CO2.
D)
TiO2, MnO and P2O5.
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Al2O3, Fe3O4 and H2O-.' (Option A).
Geologist Junior • Geology Paper-II
In the crystal structure of monticellite, M2 site is occupied by
A)
Ca
B)
Mg
C)
Fe2+
D)
both Mg and Fe2+
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Ca' (Option A).
Geologist Junior • Geology Paper-II
During metamorphism of pelitic rocks, the reaction of minerals with excess of quartz and water in KFMASH system can be represented by
A)
2Almandine + 2Aluminosilicate + 5Quartz + nH2O = 3Cordierite
B)
Cordierite + Garnet + Sillimanite = Spinel + Quartz
C)
Orthopyroxene + Sillimanite + Quartz = Cordierite + Garnet
D)
Cordierite + Sillimanite + K-feldspar + Quartz = Osumilite + Orthopyroxene
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Cordierite + Garnet + Sillimanite = Spinel + Quartz' (Option B).
Geologist Junior • Geology Paper-II
The reaction involving ‘Tremolite-out’ in Lherzolite assemblage in the CMSH system is represented by
A)
2Tremolite + 2Forsterite = 5Enstatite + 4Diopside + 2H2O
B)
4Spinel + 2Tremolite = 6Forsterite + Enstatite + 4Anorthite + 2H2O
C)
Antigorite + 8Diopside = 18Forsterite + 4Tremolite + 27H2O
D)
both (a) and (b)
Based on established principles in Geology & Mining, the correct and most appropriate choice is '2Tremolite + 2Forsterite = 5Enstatite + 4Diopside + 2H2O' (Option A).
Geologist Junior • Geology Paper-II
Which one of the following is the pioneering worker in understanding the relations between mineral assemblages, rock compositions and P-T conditions of metamorphism?
A)
C. E. Tilley
B)
G. Barrow
C)
P. Eskola
D)
V. M. Goldschmidt
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'G. Barrow' (Option B).
Geologist Junior • Geology Paper-II
The most prominent textural feature exhibited by regionally metamorphosed rocks is a planer fabric referred to as
A)
crenulation cleavage
B)
slaty cleavage
C)
foliation
D)
lineation
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'slaty cleavage' (Option B).
Geologist Junior • Geology Paper-II
The understanding of metamorphic mineral assemblages and chemical equilibrium under same P-T conditions give rise to the concept of
A)
isograd
B)
metamorphic zones
C)
metamorphic grades
D)
metamorphic facies
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'metamorphic facies' (Option D).
Geologist Junior • Geology Paper-II
Which of the following method uses optic axis interference figure to determine 2V?
A)
Wright Method
B)
Kamb’s Method
C)
Tobi’s Method
D)
Mallard’s Method
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Tobi’s Method' (Option C).
Geologist Junior • Geology Paper-II
The Eclogite facies comprises the widest P=T region of any of the metamorphic facies fields with a T-range from
A)
300 to 900 °C
B)
500 to 1200 °C
C)
420 to 1100 °C
D)
400 to 1000 °C
Based on established principles in Geology & Mining, the correct and most appropriate choice is '400 to 1000 °C' (Option D).
Geologist Junior • Geology Paper-II
The brilliant red of ruby is due to the presence of
A)
Chromium
B)
Manganese
C)
Copper
D)
Vanadium
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Vanadium' (Option D).
Geologist Junior • Geology Paper-II
The chemical formula of kaolinite is
A)
Al2 Si2 O5 (OH)4
B)
Mg Si4 O10 (OH)2
C)
Al4 Si10 O2 (OH)2
D)
KAl(AlSi3 O10)(OH)2
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Al2 Si2 O5 (OH)4' (Option A).
Geologist Junior • Geology Paper-II
In eclogite facies of metamorphism, which one of the following minerals occurs as sodic phase instead of sodic-plagioclase?
A)
Riebeckite
B)
Jadeite.
C)
Actinolite.
D)
Pigeonite.
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Pigeonite.' (Option D).
Geologist Junior • Geology Paper-II
Which of the following is the correct sequence of succession of index minerals with increasing metamorphism?
A)
chlorite, biotite, almandine, staurolite, kyanite, sillimanite
B)
chlorite, , sillimanite, biotite, staurolite, almandine, kyanite
C)
sillimanite, chlorite, biotite, staurolite, almandine, kyanite,
D)
kyanite, staurolite, biotite, almandine, sillimanite, chlorite
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'chlorite, biotite, almandine, staurolite, kyanite, sillimanite' (Option A).
Geologist Junior • Geology Paper-II
Which one of the following is metamorphic texture found in shear zones?
A)
restite
B)
fluxion
C)
strain-slip cleavage
D)
beards
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'beards' (Option D).
Geologist Junior • Geology Paper-II
The molecular proportion of elements that constitute Olivine is
A)
2:1:4
B)
1:2:3
C)
4:2:1
D)
3:1:2
Based on established principles in Geology & Mining, the correct and most appropriate choice is '3:1:2' (Option D).
Geologist Junior • Geology Paper-II
The compositions of which one of the following meteorite best matches the composition of that of the Sun?
A)
Ivuna
B)
Urelites
C)
Ataxites
D)
Pallasites
Based on established principles in the relevant subject area, the correct and most appropriate choice is 'Urelites' (Option B).
Geologist Junior • Geology Paper-II
The maximum yearly discharge over a 102-year period for the Tar River at Tarboro, North Carolina indicated that the 1999 event of 70,600ft3/sec score the highest rank. The Recurrence Interval of this record will be
A)
202 years
B)
103 years
C)
102 years
D)
1.2 years.
Based on established principles in Civil Engineering, the correct and most appropriate choice is '102 years' (Option C).
Geologist Junior • Geology Paper-II
The occurrences of carbonatites in India are recorded in
A)
Andhra Pradesh, Gujarat, Rajasthan, Tamil Nadu.
B)
Goa, Maharashtra, Madhya Pradesh, Sikkim.
C)
Karnataka, Nagaland, Osdhisa, Uttarakhand.
D)
Assam, Himachal Pradesh, Jamu & Kashmir, Utter Pradesh.
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Andhra Pradesh, Gujarat, Rajasthan, Tamil Nadu.' (Option A).
Geologist Junior • Geology Paper-II
Metamorphic facies are defined by
A)
the conditions of temperature and pressure.
B)
a single dominant rock type.
C)
peculiar texture and structures of the rocks types.
D)
critical mineral assemblages.
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'a single dominant rock type.' (Option B).
Geologist Junior • Geology Paper-II
The transition from Amphibolite to Granulite facies is represented by the mineral reaction
A)
4Tremolite + 3Anorthite = 3Pyrope + 11Diopside + 7Quartz + 4H2O
B)
7Tremolite = 3Anthophyllite + 14Di + 4Quartz + 4H2O
C)
Tremolite + Grossular = 4Clinoproxene + Orthoproxene + Anorthite + H2O
D)
4Enstatite + Anorthite = Diopside + Quartz + Pyrope
Based on established principles in Geology & Mining, the correct and most appropriate choice is 'Tremolite + Grossular = 4Clinoproxene + Orthoproxene + Anorthite + H2O' (Option C).
