detail about of jurrasic of kutch

1. JURASSIC
OF
KUTCH
Presented by :-
MAYANK MAHAWAR
M.Sc 2nd sem

2. KUTCH
• The Mesozoic rocks ranging in age from
Middle Jurassic to Lower Cretaceous are
particularly well developed in Kutch.
• These rocks are regarded as the oldest and the
most important stratigraphical formation
in Kutch.
• These sedimentary rocks represent a phase
of marine transgression along the western
part of India during the Jurassic Period.

3. JURASSIC OF KUTCH
• The western margin of indian penninsular
sheild is affected by rifting along major
proterozoic orogenic trends viz. Aravalli-Delhi
and satpura mobile belts
• Kutch rift is the northern most pericontinental
embayed basin suitated between the
subsurface Nagar Parkar Uplift (NPU) in the
north,Radhanpur-Barmer arch in the east and
Kathiawar Uplift in the south.

4. • The kutch basin evolved in the two stages:
1. Rift stage: basin subsidence along normal
faults and
2. Inversion stage: uplifts along the same faults
by reverse movements.

5. TECTONIC MAP OF KUTCH

6. Mesozoic Stratigraphy of kutch

7. PACHCHAM FORMATION
• Sub-division –callovian to Bathonian.
• The formation is named after the type section,
the Patcham Island of the Rann.
• The rocks are bestexposed in the Patcham, Khan
and Bela Islands of the Great Rann of Kutch.
• The thickness of the pachcham formation is
300m.
• It is made up of principally of limestones ,coral
beds and shale.
• Fossils –
macrophalites,montlivalita,trigonia,corbula etc.

8. PACHCHAM FORMATION

9. CHARI FORMATION
• Sub division – Upper oxfordian to M.
Callovian.
• This formation takes its name from a village
50km NW of Bhuj.
• The thickness of chari formation is 360km.
• Chari formation mainly contain sandy
limestones, marls, calcareous and sandyshales
and oolitic limestones.

10. • Fossils –
tramelliceras,mayaites,peltoceras,orionoides,
belemnites etc.

11. CHARI FORMATION

12. KATROL FORMATION
• Sub-division – M. Tithonian to U. Oxfordian
• Katrol formation contain shales, limestones,
sandstones and sand grits.
• The thickness of katrol formation is 300m.
• Fossil-
Haploceras,sreblites,phyloceras,waagenia,
trigonia etc.

13. KATROL FORMATION

14. UMIA FORMATION
• Sub-division - aptian to U. Tithonian.
• The thickness of umia formation is 1000m.
• Umia Formation mainly contain
sandstone,shale and conglomerate.
• fossils –
colombiceras,topaeum,trigonia,australiceras
etc.

15. Umia Formation

16. Reference
• By internet
• Geology of India - M.Ramakrishnan and
R.Vaidyanadhan.

17. Thank you…