The Field work was carried by 4th Semester Students batch 2021, Department of Earth Sciences University of Kashmir, Srinagar in the month of March 2023 at different places of Rajasthan, India. the fieldwork was carried under the supervision of Dr Prof Riyaz Ahmad , Dr Shafi and GSI traning Institute Zawar

1. Field Report Presentation
(Field training conducted in the different locations
of Rajasthan in the month of March 2023)
Presentation by:
Muzzamil Ahmad Khanday
Enrollment Number: 21064120002
Batch: 2021
Under the joint supervision of:
Dr. Reyaz Ahmad Dar
Dr. Mohd Shafi Bhat
PG DEPARTMENT OF EARTH SCIENCES
University of Kashmir, Srinagar – 190006

2. 1. 7TH March Visit to the Geological Survey of India Office in Jammu
2. 9TH March Visit to Department of Geology, J.N. Vyas University
Jodhpur
3. 10TH March Carried field work near Mehrangarh Fort, Jodhpur.
4. 11TH March Carried field work at Sandstone Mine Sursagar, Jodhpur.
5. 12TH March Carried field work at Barna Mines.
6. 13TH March Carried field work at Osian Desert.
7. 15TH March Carried field work near Berach River Chittorgarh
8. 16TH March Visited Chittorgarh Fort.
9. 18THMarch Carried field work across Tiri River (Bhandal)
10. 19TH March Carreid field work near Mochia Hill, Do-Nadi along Tiri River.
11. 20TH March Carried field work at Rava Area
DATE LOCATION
Field Training Schedule

3. Visit to the Geological Survey of India , Office in Jammu
Tusk of Stegodon Ganesha
Elephant Teeth
Stromatolite Retorts
Visit to Jai Narain Vyas University, Jodhpur
Corals
Spiriferida

4. TRAVERSE 1 ( Jodhpur)
MEHRANGARH FORT
Spot: 01
Jodhpur Malani Igneous Suite
 Marks the last phase of Igneous activity of Precambrian age in Indian
Subcontinent
 Rhyolite is overlying by Sedimentary Sequence of Late Proterozoic age, it
also forms the basement rocks for the Marwar Basin. GSI has declared
this site as National Geological Monument
 Visible reaction rims formed between acidic and basic composition of the
rock.
 Ignimbrites can be seen, formed from deposits of pyroclastic flows, rocks
show columnar jointing with four sets of joints.
Malani Igneous Rock Reaction Rim Ignimbrite (Welded tuff)

5. HANUMAN TEKRI
Spot: 02
 Unconformable contact between red Malani Rhyolite and Sonia
Sandstone of Marwar Supergroup, best example of Non-conformity
 Towards top of the section of Sonia sandstone graded and cross
beddings are clearly visible, the top most section also consists a layer
of conglomerates.
 Presence of Ediacaran fossils, star-shaped in appearence named as
Hiemalora
Cross bedding
Contact between Rhyolite and Sonia Sandstone

6. SANDSTONE MINE (SURSAGAR)
 10-20 m thick succession of Jodhpur Sandstone referred as Sonia
Sandstone.
 Ripple marks are characteristics of shallow water deposition.
 Rocks progressively show gradation in the size of grains, fining upward.
 Alternation between cross-stratification and plane lamination in
sandstone.
 Darker beds depict the more oxidizing type of environment.
Graded Bedding Ripple marks
Hiemalora (Fossil)
Cross Stratification Aspidella
Ripple marks (asymmetrical)

7. BARNA MINES
 The outcrop belongs to Bilara Group which is middle part of Marwar
Supergroup and is made up of calcarous facies with domination of
dolomite and limestone.
 Folding is prominent structure, area is tectonically active.
 Limestones with stromatolites are present these are of pre-cambrain
age and are found in the shallow marine environment because they
need light to perform photosynthesis.
 Geode are found in some of the limestones.They are geologically
secondary formations within sedimentary and volcanic rocks.
Stromatolitic Limestone Folding ( in Bilara Group)
Geode

8. TRAVERSE: 02 ( Chittorgarh)
BERACH RIVER
 Great Boundary Fault runs between Vindhyan and Aravalli mountain
range and is almost parallel to Berach River in Chittorgarh.
 The rocks along the river are shales and sandstones which are highly
deformed and weathered.
 In the N-W of Berach River there is an exposure of Berach Granite
outcrop, which is coarse grained ( Porphyritic) texture with large
interlocking crystals of white quartz, white to dark pink feldspar and dark
micas. The grains are roughly equal sized. The age of granite is about
2.5 BY
Sheared Sandstone
Folds
Granite (Berach)
Berach Granite (Outcrop)

9. CHITTORGARH FORT
 The basement rock is shale, while moving towards the top of the fort the
lithology changes from sheared shale to sandstone. The sharing is less
while moving away from Berach river to fort.
 At some places shales are overlying by quartzite depicts metamorphism
of sandstone has taken place.
 Sandstones have preserved various sedimentary structures, like ripple
marks, cross and horizontal bedding/lamination.
Horizontal Bedding
Shale Beds
Quartzite
Cross Bedding

10. TRAVERSE: 03 (Udaipur)
TIRI RIVER
Spot: 01
 Lithology: Low-grade metamorphic rocks mostly phyllite intercalated
quartzite.
 The formation is Precambrain in age, forms lower Aravalli. The
metamorphic belt extends along Udaipur-Ahmadabad highway.
 Different secondary structures are developed, like pencil structure,
tensional gashes, joint sets.
 Tension gashes are formed in Ductile shear zones, filled with (mostly)
Calcite or Quartz. Their orientation reflects the stress field experienced
by rocks.
 Different cleavage planes are developed in Phyllite, depicts the different
events of deformation.
Pencil Cleavage Tension gashes
((Outcrop)
Phyllite Outcrop

11.  Mochia Hill provides a valuable insights into the tectonic history and
geological evolution of the area. It has developed different classes of
folding.
 John Ramsay's Fold Classification: based upon curvature of the inner
and outer lines of a fold, and the behavior of dip isogons.
 Signposts of the Gossans can be seen at different places in the area. Gossans
form by the oxidation and leaching-out of the sulphides and carbonates, leaving
hydrated iron oxides, they thus may be used as clues to existence of subsurface
ore deposits.
Tight Folds Open Folds Chevron Fold
Gossans (Leached Zone)

12. Thank You!