Home > NBMG Publications >

New!  Nevada geology calendar 2022
Nevada geology calendar 2022


 
Alternative Views:





Price: $12.00

Product Code: CAL2022
Qty:

  
Description
 
Title: Nevada geology calendar 2022

Author: designed by Christina Clack, Jennifer M. Vlcan, Chip Carroon, Christopher D. Henry, James E. Faulds, and Rachel E. Micander
Year: 2021
Series: Calendar CAL2022
Version:
Format: 13 x 9.5 inches, full color
Scale:

This 12-month calendar (January through December 2022) is full of beautiful photos highlighting Nevada’s scenic wonders and features a different geologic topic each month: Goblin Knobs, South Pahroc Range, Columnar Joints, Big Den Creek Canyon, Hot Springs, Peak Bagging, Beatty Mountain, Pinto Valley Wilderness, Santa Rosa Range, Goshute Mountains, Lake Tahoe, and Cavernous Weathering. Interesting facts about Nevada and Nevada geology also included.

A big thank you goes to the calendar prize winners and contributors for the outstanding photos they submitted.

First-place winner, Eric Poulin, Goshute Mountains, Elko County (cover):
The Goshute Mountains in far eastern Nevada are one of many fault-bound mountains of the Basin and Range Province in Elko County. This photograph was taken by a long distance hiker who in 2020 forged his own 1,000-mile Basin and Range trail through central Nevada highlighting the unique topography found in this state. More information about the Goshute Mountains can be found in October’s page.

Second-place winner, Bob Tregilus, Goblin Knobs, Reveille Range, Nye County (January photo):
The tuff of Goblin Knobs is a 25.6 Ma (million-year-old) ash-flow tuff that filled its source caldera in the northern Reveille Range, Nye County. Calderas, large, deep subcircular depressions, form when so much magma erupts that the ground has to subside into the space formerly occupied by magma. Eruption and caldera collapse occur at the same time, so much of the tuff accumulates to great thicknesses (up to 4 km, 2.5 mi) as “intracaldera tuff ” inside the caldera. Some tuff flows away from the caldera, where the hot (750°C) “outflow tuff ” kills almost everything in its path. The tuff is highly jointed – fractured, which is characteristic of thick intracaldera tuffs. Jointed tuffs commonly weather into spectacular spires like these, because groundwater percolates down along the fractures to weather the rock.

Third-place winner, Jack Hursh, columnar joints in the Seven Troughs Range, Pershing County (March photo):
Columnar joints in the Seven Troughs Range, Pershing County. Columnar joints are the result of differential cooling in igneous rocks, most commonly observed in lava flows and ash-flow tuffs (ignimbrites). However, columnar joints can also be seen in shallow igneous intrusions such as dikes (like the photo above) and sills. As the igneous rocks begin to cool, cracks form and grow as a result of contraction. Cooling is more rapid towards the surface of the deposit where it may be exposed to the atmospheric elements. The rock cools more slowly towards the bottom of the deposit where it is insulated by the ground. As the rock cools, fractures make their way through the deposit leaving 5- to 6-sided columns behind (in some cases columns can have as few as 3 sides or as many as 7). The resulting columnar joints point toward the direction of heat loss. Due to the volcanic history of Nevada, columnar joints can be observed in many places throughout the state.

FREE Nevada-shaped pin upon request with your purchase of 10 or more calendars at the discounted price of $10 each! See "Related items" for more details or click here: Nevada-shaped pin. The calendars make great holiday gifts. Offer good while supplies last.

Calendar photo contest for 2023: If you have amazing photos of Nevada geology that you would like to share with others in the 2023 Nevada Geology Calendar, you can enter the photo contest now!

Here are the details for the 2023 calendar contest:
  • Deadline for entries is May 31, 2022.
  • Photos need to be taken in Nevada. A location description and/or GPS coordinates should accompany submissions along with description.
  • High-quality, high-resolution photo files of at least 300 DPI are required for quality printing.
  • You may enter as many photos as you wish.
  • Email submissions to Christina Clack (cclack@unr.edu).
  • NBMG cartographers will make the final decision on the winning photos.
  • Prizes will be awarded for first-, second-, and third-place winners.
Check out other photos of Nevada geology on the NBMG website.

Go geotripping in Nevada!

Suggested citation:
Clack, C., Vlcan, J.M., Carroon, C., Henry, C.D., Faulds, J.E., and Micander, R.E., 2021, Nevada geology calendar 2022: Nevada Bureau of Mines and Geology Calendar 2022.

© Copyright 2021 The University of Nevada, Reno. All Rights Reserved.

Original Product Code: CAL2021