Archive | October 2013

Earth Science Week Field Trip – New Plant Guide Posted

Photos by Alexander D. Price and Jonathan G. Price

Photos by Alexander D. Price and Jonathan G. Price

Everyone really enjoyed the annual Earth Science Week field trip that took place on October 12-13. It was even fun geo-tripping in the cool rain on Sunday morning.

Chris Ross (BLM) was on the trips both days to help point out the plant types in the area and the interaction of plants and geology. A supplemental guide used for the field trip has now been included as an appendix to Educational Series 53 on the NBMG website:

Title: Mapping the Geology around the Desert Research Institute and Truckee Meadows Community College

Trip leaders: Jonathan G. Price, D.D. LaPointe, David A. Davis, and Craig M. dePolo (Nevada Bureau of Mines and Geology), assisted by Christopher Ross, David Boden, Donald Hudson, and Elisabeth Price

Trip guide (Educational Series 53): http://www.nbmg.unr.edu/sales/pbsdtls.php?sku=E-53

Appendix 1 to E53: Plants around the DRI-TMCC Campuses, photos by Alexander D. Price and Jonathan G. Price, plant identifications by Christopher Ross and Elisabeth M. Price
http://www.nbmg.unr.edu/dox/e53.pdf  (pages 13-38)

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2014 Nevada Geology Calendar – Coming Soon!

2014CalendarAd
View or download full-size .pdf of this image

Enjoy unique Nevada landscapes with this impressive new calendar that will be available soon and features a different geologic topic each month: Precarious Rocks, Geothermal, Sandstone, Basin and Range, Limestone, Tufa, Glaciation, Ash-Flow Tuff, Igneous Dikes, Canyons, Modern Mining, and Earthquake Faults.

The 2014 Nevada Geology Calendar was produced by Nevada Bureau of Mines and Geology in cooperation with Geological Society of Nevada. It was designed by Jack Hursh, Jennifer Mauldin, Chris Henry, Nick Hinz, and the Geological Society of Nevada photo contest entrants.

Kreemer Lecture: Global Strain Rate Map – Monday October 21

Speaker: Dr. Corné Kreemer, NBMG Research Professor
http://www.nbmg.unr.edu/Staff/Kreemer.html

Topic: Global strain rate map
http://www.nbmg.unr.edu/sales/pbsdtls.php?sku=M178

Date: Monday, October 21 at 4:00

Place: DMS (Davidson Math and Science Center) Room 102 on the UNR campus
http://www.unr.edu/around-campus/maps

For more information on this talk, please contact Wendy Calvin:
Wendy Calvin
Prof. Geophysics & Remote Sensing
Director, Great Basin Center for Geothermal Energy
Univ. Nevada – Reno, wcalvin@unr.edu, 775-784-1785

NBMG’s Geologic Mapping Presence in the World – OneGeology

This week is Earth Science Week and the theme for the week is “Mapping Our World.” NBMG celebrates the week with two new geologic maps (see previous post) and an update on NBMG’s participation in the OneGeology project.

OneGeology

“OneGeology is an international initiative of the geological surveys of the world. This ground-breaking project was launched in 2007 and contributed to the ‘International Year of Planet Earth’, becoming one of their flagship projects.

Thanks to the enthusiasm and support of participating nations, the initiative has progressed rapidly towards its target – creating dynamic geological map data of the world, available to everyone via the web. We invite you to explore the website and view the maps in the OneGeology Portal.” (from OneGeology website)

The Nevada Bureau of Mines and Geology holds a record: we have added our STATEMAP digital conversions to the OneGeology website (http://www.onegeology.org/ ), and currently NBMG has more features than any other country in the world. Access the world map through the OneGeology portal (http://portal.onegeology.org/)

With the efforts of Kathryn Ryan, Gary Johnson, Lisa Shevenell, and Selena Large, we have added 27 feature groups (map scale groups). United Kingdom comes in second with 26 feature groups. NBMG has added the various scales of geologic mapping from 1:500,000-scale (Stewart and Carlson 1:500K) up to 1:12,000-scale maps. This effort reflects over 200 geologic maps that are represented by age of the geologic unit. The data is represented in each scale by features of contacts, faults, and geologic units. There is much more to be added, and as time and funds allow, we will update. OneGeology runs a little slow, but the information represented is valuable.

New Geologic Maps – in Elko and Clark Counties

Open-File Report 13-5 

Preliminary Geologic Map of the Tuscarora Geothermal Area, Elko County, Nevada, by Gregory M. Dering and James E. Faulds, 2013

Plate 1

Plate 1

Plate 2

Plate 2

Tuscarora is an amagmatic geothermal system that lies in the northern part of the Basin and Range province, ~15 km southeast of the Snake River Plain and ~90 km northwest of Elko, Nevada. The Tuscarora area is dominated by late Eocene to middle Miocene volcanic and sedimentary rocks, all overlying Paleozoic metasedimentary rocks. A geothermal power plant was constructed in 2011 and currently produces 18 MWe from an ~170°C reservoir in metasedimentary rocks at a depth of 1740 m. Two distinct structural settings at different scales appear to control the geothermal field. The regional structural setting is a 10-km wide complexly faulted left step or relay ramp in the west-dipping range-bounding Independence–Bull Run Mountains normal fault system. Geothermal activity occurs within the step-over where sets of east- and west-dipping normal faults overlap in a northerly trending accommodation zone. The distribution of hot wells and hydrothermal surface features, including boiling springs, fumaroles, and siliceous sinter, indicate that the geothermal system is restricted to the narrow (< 1 km) axial part of the accommodation zone, where permeability is maintained at depth around complex fault intersections. Shallow up-flow appears to be focused along several closely spaced steeply west-dipping north-northeast-striking normal faults within the axial part of the accommodation zone. The recognition of the axial part of an accommodation zone as a favorable structural setting for geothermal activity may be a useful exploration tool for development of drilling targets in extensional terranes, as well as for developing geologic models of known geothermal fields. In addition, the presence of several high-temperature systems in northeastern Nevada demonstrates the viability of electrical-grade geothermal activity in this region despite low present-day strain rates as indicated by GPS geodetic data. Geothermal exploration potential in northeastern Nevada may therefore be higher than previously recognized.

1:24,000; two plates including cross sections, available on the Web:
http://www.nbmg.unr.edu/sales/pbsdtls.php?sku=OF13-%205

 

Open-File Report 13-6

Preliminary Geologic Map of the Valley of Fire East Quadrangle, Clark County, Nevada, by Thomas W. Muntean (Geology Department, Adrian College, Adrian, MI), 2013

VoF

The Valley of Fire East quadrangle geologic map is a compilation of previous maps (1:62,500- to 1:250,000-scale maps) from the region and new mapping. New geologic mapping was primarily conducted to resolve the local stratigraphy of, and structural features affecting, the late Neogene Muddy Creek Formation (MCF) at the 1:24,000 scale. Compilation mapping was predominantly used to improve the resolution of pre-MCF unit contacts and exposures within the map area.

1:24,000; plate and text, available on the Web:
http://www.nbmg.unr.edu/sales/pbsdtls.php?sku=OF13-%206

 

USGS Webinars – Cancelled

Due to government shutdown, both of these webinars have been cancelled and will be rescheduled at a later time:

The USGS National Geospatial Program team for CA, NV, and HI (Drew Decker and Carol Ostergren) is hosting a series of webinars over the next several months. These webinars will highlight USGS National Geospatial Program advances and new technologies being deployed by other Federal agencies. Please feel free to forward this webinar announcement to others in your organizations. Both of these webinars require advance registration, but we will keep this open as long as possible.

October 3, 1 pm Pacific: The USGS Volunteered Geographic Information Program

The volunteer effort of The National Map Corps to collect and improve structures data provides several benefits to the Program and its users:

  • Participation in The National Map Corps is easy. Complete registration instructions and editing guidelines can be found at https://my.usgs.gov/confluence/display/nationalmapcorps/Home
  • The National Map Corps benefits the agency and the participants by providing opportunities for citizen participation in USGS science
  • Participation in The National Map Corps raises geographic awareness and improves users’ skills in using web-based tools
  • Volunteer participation improves public access to data and data quality

The use of The National Map Corps and VGI will result in more complete national datasets in The National Map with improved positional and attribute accuracy. With this coordination, federal, state, and local government efforts, combined with citizen contributions, are complementary and lead to a richer dataset that is available for everyone to use.

TOPIC: USGS Volunteered Geographic Information DATE: Thursday, October 3, 2013 TIME: 1:00 pm, Pacific Daylight Time (San Francisco, GMT-07:00)

To attend this meeting, you must first register for it. Please click this link to see more information, and register for this meeting. https://usgs.webex.com/usgs/j.php?ED=245886522&RG=1&UID=0&RT=MiM0 Once you have registered for the meeting, you will receive an email message confirming your registration. This message will provide the information that you need to join the meeting.

For Help or Support: Go to https://usgs.webex.com/usgs/mc click Assistance, then Click Help or click Support.

October 8, 1 pm Pacific: From DFIRM to the National Flood Hazard Layer (NFHL):  Charting the Course of FEMA’s Digital Flood Hazard Data

This webinar will look at the past, present, and future of FEMA’s digital flood hazard information.  FEMA’s Flood Information Rate Maps (FIRMs) are primarily designed for rating flood insurance and reducing risk through community planning, but they also serve to inform the public about the location of flood hazards.  FEMA has distributed GIS versions of the FIRMs as early as the mid 1990s, but with recent enhancements FEMA’s current focus is on distributing the NFHL as geospatial web services.

Topic: From DFIRM to the National Flood Hazard Layer (NFHL): Charting the Course of FEMA’s Digital Flood Hazard Data Date: Tuesday, October 8, 2013 Time: 1:00 pm, Pacific Daylight Time (San Francisco, GMT-07:00)

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To register for this meeting
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1. Go to https://usgs.webex.com/usgs/j.php?ED=245888147&RG=1&UID=0&RT=MiM0

2. Register for the meeting. Once the host approves your request, you will receive a confirmation email with instructions for joining the meeting.

Other upcoming webinars in planning are:

  • Earth Explorer data repository (which houses imagery, lidar, landsat, land cover, and many other datasets)
  • Using the USGS USTopo geopdf
  • Using USGS map services
  • Introduction to the National Hydrography Dataset

Please let Drew or Carol know if you are interested in any or all of these webinars, or if you have other interests in Federal Programs that they can try to facilitate.

Drew Decker USGS Geospatial Liaison for Pacific Region NSDI Partnership Office, U.S. Geological Survey 4165 Spruance Road, Suite 200 San Diego, CA 92101 619-225-6430 619-417-2879 cell 619-225-6101 fax ddecker@usgs.gov http://liaisons.usgs.gov/geospatial/California/ http://liaisons.usgs.gov/geospatial/Hawaii/ USNG 11S MS 8026 2158

Carol Ostergren US Geological Survey Pacific Region National Geospatial Program 3020 State University Drive East, Suite 3005 Sacramento, CA 95819 916-278-9510 (office); 916-278-9546 (fax) costergren@usgs.gov

NPGS Dinner Meeting Oct 3 – RSVP by Today

Nevada Petroleum & Geothermal Society Dinner Meeting: Thursday, Oct 3, 2013

Speakers: Jerry Walker, NPGS Secretary and Larry Garside, NPGS Field Trip Chairman

TOPIC: NPGS Field Trip Presentation, Walker Lane

Jerry Walker, NPGS Secretary, and Larry Garside, NPGS Field Trip Chair, will present details on NPGS’ upcoming field trip.  Participants in our field trip will view geothermal and petroleum developments in several extensional basins of the Central Walker Lane in Nevada.  The field trip is scheduled for October 12-13, 2013, Saturday and Sunday.

This field trip begins and ends in Hawthorne.  We leave Saturday from the El Capitan in Hawthorne at 7:30 a.m.

Plan to stay overnight Saturday at the El Capitan located at 540 F Street in Hawthorne on Saturday night.  The El Capitan has blocked room rates for our group at $47.95 (plus tax) if you reserve early.  Call now at (775) 945-3321 to reserve your room today.  Do reference our NPGS group.

Registration fee includes two lunches, beverages (water and sodas) and snacks each day, and a trip guidebook. Transportation will be in private vehicles:  high-clearance 2-wheel drive vehicles may be suitable, but 4-wheel drive vehicles are preferred.  Participants are asked to share gasoline and other vehicle-related expenses with those they carpool with.

Registration costs $125 per NPGS Member, $150 per Non-Member.  Registration fee includes lunches, beverages (water and sodas) and snacks each day, and a trip guidebook. Please submit your fees to: NPGS, PO Box 11526, Reno, Nevada, 89510, no later than Friday, October 4th, 5:00 p.m. (fees must be received by Friday, so mail your check in by Tuesday, October 1st.).

Ramada Reno Hotel; 6:30 PM
1000 East 6th Street, Reno, NV 89512

Cocktail Reception 6:30, Skyline Bar, 14th Floor, Dinner Served at 7:00 PM

NPS Members $20; Non-Members $23; Students $10

RSVP by Tuesday, Oct 1 for dinner meeting
RSVP at the following link to make reservations for the October 3rd Dinner Presentation:
https://docs.google.com/forms/d/1a2YngM9TgkHJhNdW9i9Vxi6-f_jFxP-qhpKmlyraFD0/viewform

Please ensure at least 24 hours of advance notice if you cannot attend and amend your RSVP. NPGS gets charged for your dinner if you do not show!
THANK YOU!

RSVP at the following link to make reservations for the October 12-13 Field Trip:
https://docs.google.com/forms/d/1eM3aFfyVHK-mX4AwIBOpskPNOVeG71YNEOSUGZCBRH0/viewform

Vicki D. Ehni
Ehni Enterprises, Inc.
P. O. Box 4228
Carson City, NV 89702-4228
(775) 883-1107
fax (775) 883-7279
vehni@aol.com