Popular field trips will have a waitlist, however registration will be first come first serve.

Pre-Meeting (May 14-17)

FT#1: Epithermal Deposits of Northern Nevada & Southwestern Idaho

Cost: $550

(4 days – May 14-17, leave 8AM)

Leaders

Randy Vance
John Marma
Justin Milliard

Stops

DeLamar (Idaho), Midas, Hollister, Mule Canyon, Fire Creek. Stops at Bradys Hot Springs, Rye Patch/Humboldt House.

Maximum Participants

50

This field trip will examine several epithermal precious-metal deposits located along mid-Miocene rifts in northern Nevada and southwestern Idaho. The focus of the trip will be on deposit characteristics, host rocks, genesis, and exploration criteria, including subtle expressions of the upper portions of bonanza ore shoots. Overviews of mid-Tertiary regional structural settings will be discussed at Mule Canyon, Fire Creek, and Beowawe. Late Tertiary faulting and geothermal activity will be examined at Rye Patch/Humboldt and Bradys. This trip is designed for experienced geologists, mining engineers, and others seeking to learn about gold-silver deposits associated with Miocene-age volcanic rocks.

FT#2: Structural Controls of Geothermal Systems

Cost: $275

(2 days – May 16 & 17)

Leader

Jim Faulds
Mark Coolbaugh

Stops

Hot Springs Mtns
Brady’s Hot Springs, Desert Peak, San Emidio-Wind Mountain, Gerlach, Blue Mountain, Florida Canyon

Maximum Participants

30

Nevada has more geothermal resources than any other state, but most of these resources are hidden with no surface manifestations. This two day trip will examine the structural controls on currently active geothermal systems in western Nevada and the similarities between these present-day geothermal systems and late Miocene-Pliocene epithermal mineral deposits. In some areas, the current geothermal activity is collocated with the epithermal mineral deposits. We will focus on viewing several representative, favorable structural settings for hydrothermal systems and how we can apply this knowledge to both geothermal and mineral exploration.

FT#3: The Famous Comstock Gold & Silver District

Cost: $125

(1 day – Saturday May 16, leaving AM after ~1hr presentation)
NO MOTEL

Leader

Don Hudson

Stops

Virginia City Epithermal district

Maximum Participants

50

This one day trip will explore the complex geologic setting of one of the richest epithermal districts in the U.S. The trip will consider the characteristics of several superimposed hydrothermal systems in the Virginia City area near Reno.

FT#4: Seismic Hazards & Evolving Landscapes, Reno-Carson-Tahoe Area

Cost: $125

(1 day – May 17, leave AM)
NO MOTEL

Leader

Rich Koehler

Stops

Petersen Mountain fault along Red Rock Road
Warm Springs Valley fault in the southern Honey Lake basin

Maximum Participants

30

This field trip will focus on research on the relative activity of earthquake faults in the northern Walker Lane, near Reno, Nevada. The northern Walker Lane accommodates approximately 7 mm per year of right-lateral shear and contains numerous active faults capable of producing large earthquakes. Several recent paleoseimic studies have been completed in this area and have included mapping of Quaternary deposits and fault scarps, subsurface trenching, and geochronologic analyses on faulted deposits. We will visit several of the paleoseismic sites and discuss the geomorphic expression of active fault traces, the number and timing of paleo-earthquakes, and implications to seismic hazards assessment in the Reno area.


Post-Meeting (May 21-24)

FT#5: Epithermal Deposits of the Walker Lane, Nevada

Cost: $550

(3.5 days – May 21-24, leave noon)

Leaders

Ellie Leavitt
Elliott Crist

Stops

Secret Canyon & Daisy Pits
Motherlode
Silicon, Sterling, N. Bullfrog
Isabella-Pearl, Gemfield/Goldfield

Maximum Participants

40

Exploration in the central portion of the Walker Lane has been hot in recent years. This field trip will examine the relationships between low-sulfidation, high-sulfidation, and sediment-hosted disseminated gold/silver deposits. Detachment tectonics will add some spice to  this fascinating brew of deposits.

FT#6: Introduction to Carlin Gold Deposits

Cost: $450

(3 days – May 22 – 24, leave AM)

Leaders

Jean Cline
Nancy Richter

Stops

Twin Creeks, Turquoise Ridge
Carlin Trend
Cortez District including Fourmile and Goldrush

Maximum Participants

50

What are the classic features of this important class of gold deposits? Find out by visiting several major deposits along three trends on this trip designed for geologists wanting an introduction to Carlin deposits or an update on the most current geologic thoughts about them.