The document summarizes the Jurassic stratigraphy of the Kutch region in India. It describes the key geological formations that date from the Middle Jurassic to Lower Cretaceous periods, including the Pachcham Formation consisting of limestones and corals, the Chari Formation containing sandy limestones and marls, the Katrol Formation made up of shales, limestones and sandstones, and the Umia Formation comprising sandstone, shale and conglomerate. It provides context that these sedimentary rocks formed during a phase of marine transgression in the western part of India during the Jurassic Period.

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…