PresentationName = Zeeshan AhmadRoll no = 301

Presented to = Sir Subtain

Major Faults Of Pakistan

Fault

Relative movement along blocks is known as fault.

Faults may range in length from a few millimeters to thousands of kilometers.

Earthquake is a natural phenomenon and earthquakes can happen at any time at about any place.

But mostly they occur at some weak planes or places under stress – faults.

SIGNIFICANT FAULTS OF PAKISTAN

Jhelum fault

It is an important strike-slip fault, trending north-south.

The fault was reported by the original researchers to extend along the Jhelum river and further southwards to the Chaj Doab.

Between Muzaffarabad and Kohala, this fault apparently dislocates the MBT and a left-lateral offset of about 30 km is indicted on the western limb of the syntaxes.

In the regions of Murree, Abbottabad and Hazara the geological formations are extremely deformed as well as displaced several km southwards.

It is the youngest and active major tectonic feature in the syntaxial zone.

Based on the seismicity, the fault is quite an active one

MBT

The Main Boundary Thrust is a distinct and important tectonic feature along the entire Himalayan Belt.

The MBT loops around the Hazara syntaxial zone. It represents themajor zone of recent deformation and the largest

earthquakes.The MBT stretches from the Afghan border, and

can be traced nearly continuously to the Assam through Eastern India.

Islamabad-Rawalpindi area is located at a close distance south of the western limb of the MBT.

PT

The Panjal thrust runs parallel to the MBT on the eastern limb of syntaxes.

This fault meets the Khairabad fault situated on Northern Attock Cherat range. Therefore, it is also known as Punjal-Khairabad thrust.

Kalabagh Fault

Kalabagh fault is a prominent right-lateral strike-slip fault.

KF extends between Kalabagh and Mianwali.

It truncates at the western margin of the Salt Range.

Salt Range ThrustSRT terminates in the west against

Kalabagh fault and its eastern termination is near the right bank of Jhelum river

Chaman Transverse Fault

The Chaman Fault is a major, active geological fault in Pakistan and Afghanistan.

It runs for over 850 km  the Chaman fault starts at the triple junction

 where the Arabian Plate, the Eurasian Plate and the Indo-Australian Plate meet.

The Ghazaband and Ornach-Nal faults are often included as part of the Chaman fault system.