Geologic Unit: Pahranagat

Usage:

Pahranagat Formation (NV*)

Geologic age:

Tertiary
Miocene, early*

Type section, locality, area and/or origin of name:

Type section: in East Pahranagat Range just north of Medsger Pass, Lat. 37 deg. 15 min. 18 sec. N., Long. 115 deg. 13 min. 22 sec. W., Alamo 7.5-min quadrangle, Lincoln Co., NV. Named from Pahranagat Lakes and the East Pahranagat and Pahranagat Ranges south and west of Alamo, NV, where good exposures of outflow tuff facies (or outflow sheet) are abundant (Scott and others, 1995).
Reference sections (outflow tuff facies): (1) at southern end of White River Narrows (see Williams, 1967, p. 81) on west side of NV Highway 318, Lat. 37 deg. 50 min. 17 sec. N., Long. 115 deg. 02 min. 20 sec. W., White River Narrows 7.5-min quadrangle; (2) in southern Pancake Range on western side of Black Beauty Mesa, Lat. 38 deg. 16 min. 40 sec. N., Long 116 deg. 06 min. 25 sec. W., Lunar Crater 15-min quadrangle (rocks previously called granite-weathering tuff); and (3) in southern Monitor Range at southeast end of Woodchopper Canyon, Lat. 38 deg. 09 min. 53 sec. N., Long. 116 deg. 50 min. 52 sec. W., Mud Spring 7.5-min quadrangle (rocks previously called tuff of Saulsbury Wash) (Scott and others, 1995).

AAPG geologic province:

Great Basin province*