Pyramid Lake Fault Zone Explained

Pyramid Lake Fault Zone
Namedfor:Pyramid Indian Reservation
Pushpin Map:USA Nevada#United States
Pushpin Map Caption:Location of the fault in Western Nevada
Pushpin Relief:yes
Pushpin Map Label:Pyramid Lake Fault Zone
Pushpin Label Position:right
Location:Fernley
Country:United States
Region:Western Nevada
State:Nevada
Coordinates:39.75°N -139°W
Range:Virginia Range
Length:49km (30miles)
Strike:N13°W
Status:Active
Type:Strike slip fault
Rockunit:Alluvium
Eolian
Lacustrine
Age:Holocene
late Pleistocene

The Pyramid Lake Fault Zone is an active right lateral-moving (dextral) geologic fault located in western Nevada. It is considered an integral part of the Walker Lane.

The fault zone extends to the southeast from Pyramid Lake roughly parallel to the course of the Truckee River between the Truckee Range to the northeast and the Pah Rah Range to the southwest.[1]

The Pyramid Lake Fault is the easternmost of a series of en echelon faults of the Walker Lane straddling the Nevada – California border. The parallel striking faults to the west are the Warm Springs Valley Fault, the Honey Lake Fault, and the Mohawk Valley Fault.[2]

Additional reading

Notes and References

  1. Anderson . Larry W. . Hawkins . Fred F. . Recurrent Holocene strike-slip faulting, Pyramid Lake fault zone, western Nevada . Geology . 1984 . 12 . 11 . 681 . 10.1130/0091-7613(1984)12<681:RHSFPL>2.0.CO;2 . 8 September 2023.
  2. Faulds . James E. . Henry . Christopher D. . Hinz . Nicholas H. . Kinematics of the northern Walker Lane: An incipient transform fault along the Pacific–North American plate boundary . Geology . 2005 . 33 . 6 . 505 . 10.1130/G21274.1 . 8 September 2023.