Unified Interior Regions

Region 7: Upper Colorado Basin

Map of Region 7: Upper Colorado Basin

Map of Region 7:  Upper Colorado Basin

Map Showing USGS/DOI Unified Region 7 and parts of adjoining Regions

Regions L2 Landing Page Tabs

USGS Science Centers in Region 7-Upper Colorado Basin produce hundreds of USGS-series publications, journal papers, and books each year that are subject to rigorous review by USGS specialists. The publications shown below on this page are related to study areas and staff members of USGS Science Centers in Region 7 compiled from the USGS Publications Warehouse.

Filter Total Items: 5,264
Publication Thumbnail
Year Published: 2019

Using component ratios to detect metadata and instrument problems of seismic stations: Examples from 18 years of GEOSCOPE data

Replacement or deterioration of seismic instruments and the evolution of the installation conditions and sites can alter the seismic signal in very subtle ways, so it is notoriously difficult to monitor the signal quality of permanent seismic stations. We present a simple tool, energy ratios between each pair of the three recorded components,...

Pedersen, Helle A.; Leroy, Nicolas; Zigone, Dimitri; Vallée, Martin; Ringler, Adam T.; Wilson, David C.

Publication Thumbnail
Year Published: 2019

The (mythical) M8.2 off coast of Peru earthquake of 12 December 1908

Global earthquake catalogs covering the early twentieth century differ in their listings of a large earthquake, or earthquakes, on 12 December 1908. Some catalogs list an M∼7">M∼7M∼7 earthquake originating in northern Myanmar (Burma) at ∼12:55">∼12:55∼12:55 UTC on that date. Other catalogs do not...

Di Giacomo, Domenico; Dewey, James W.

Publication Thumbnail
Year Published: 2019

Remote sensing of tracer dye concentrations to support dispersion studies in river channels

In river channels the flow field influences the dispersion of biota, contaminants, and other suspended or dissolved materials. Insight on patterns and rates of dispersion can be gained by injecting a pulse of visible dye and observing spatial and temporal variations in dye concentration as the pulse moves downstream. We evaluated the potential of...

Legleiter, Carl J.; McDonald, Richard R.; Nelson, Jonathan M.; Kinzel, Paul J.; Perroy, Ryan L. ; Baek, Donghae; Seo, Il Won

Publication Thumbnail
Year Published: 2019

Geospatial scaling of runoff and erosion modeling in the Chihuahuan Desert

Large-scale assessments of rangeland runoff and erosion require methods to extend plot-scale parameterizations to large areas. In this study, Rangeland Hydrology and Erosion Model (RHEM) parameters were developed from plot-scale foliar and ground-cover transect data for an arid, grass-shrub rangeland in southern New Mexico, and a method was...

Ball, Grady; Douglas-Mankin, Kyle R.

Publication Thumbnail
Year Published: 2019

The Zn–Pb mineralization of Florida Canyon, an evaporite-related Mississippi Valley-type deposit in Bongará district, northern Peru

The Florida Canyon evaporite-related Zn–Pb sulfide deposit, in northern Peru, is one of the largest Mississippi Valley-type (MVT) deposits in South America. Triassic carbonate and former evaporite-bearing rocks of the Pucará Group host the ore bodies that comprise two different styles: (i) predominantly stratabound ore associated with hydrocarbon-...

de Oliveira, Saulo B; Leach, David L; Juliani, Caetano; Monteiro, Lena VS; Johnson, Craig A.

Publication Thumbnail
Year Published: 2019

Dissolved organic matter in the deep TALDICE ice core: A nano-UPLC-nano-ESI-HRMS method

Trace organic compounds in deep ice cores supply important paleoclimatic information. Untargeted analyses of dissolved organic matter provide an overview of molecular species in ice samples however, sample volumes usually required for these analyses are generally not available from deep ice cores. Here, we developed an analytical method using a...

Zangrando, Roberta; Zanella, Veronica; Karroca, Ornela; Barbaro, Elena; Kehrwald, Natalie; Battistel, Dario; Gambaro, Andrea; Barbante, Carlo

Publication Thumbnail
Year Published: 2019

Using stream-side groundwater discharge for geochemical exploration in mountainous terrain

Groundwater chemistry has been predominantly used in geochemical exploration studies to identify mineralized targets concealed under transported cover in areas with gentle topography. Another potentially valuable ap-plication that has received little attention is using groundwater chemistry to identify deposits concealed within mountain ridges. A...

Manning, Andrew H.; Morrison, Jean M.; Wanty, Richard; Mills, Christopher T.

Publication Thumbnail
Year Published: 2019

The complexity of mudstone diagenesis - some insight from the Tøyen Formation, Lower to Middle Ordovician, southern Sweden

The Lower to Middle Ordovician Tøyen Shale in southern Sweden, a biostratigraphically well-dated siliciclastic mudstone unit, shows 18 distinct authigenic cements that include sulfides, carbonates, silicates, clays, and phosphates. Marcasite, sphalerite, galena, and six texturally distinct types of pyrite characterize the sulfides whereas only one...

Egenhoff, Sven; Fishman, Neil; Lowers, Heather A.; Ahlberg, Per

Publication Thumbnail
Year Published: 2019

Variable normal-fault rupture behavior, northern Lost River fault zone, Idaho, USA

The 1983 Mw 6.9 Borah Peak earthquake generated ∼36 km of surface rupture along the Thousand Springs and Warm Springs sections of the Lost River fault zone (LRFZ, Idaho, USA). Although the rupture is a well-studied example of multisegment surface faulting, ambiguity remains regarding the degree to which a bedrock ridge and branch fault at the...

Duross, Christopher; Bunds, Michael P.; Gold, Ryan D.; Briggs, Richard W.; Reitman, Nadine G.; Personius, Stephen; Toké, Nathan A.

Publication Thumbnail
Year Published: 2019

300,000 yr history of water-table fluctuations at Wind Cave, South Dakota, USA—Scale, timing, and groundwater mixing in the Madison Aquifer

Deposits of calcite coating the lower passages of Wind Cave in the southern Black Hills of South Dakota were precipitated under phreatic conditions. Data from samples associated with a new cave survey and hydrologic studies indicate that past water tables within Wind Cave reached a maximum height of 45 m above modern levels but were mostly...

Paces, James; Palmer, Margaret V.; Palmer, Arthur N.; Long, Andrew J.; Emmons, Matthew P.

Publication Thumbnail
Year Published: 2019

Protracted multipulse emplacement of a post-resurgent pluton: The case of Platoro caldera complex (Southern Rocky Mountain volcanic field, Colorado)

Many eroded calderas expose associated postcollapse plutons, but detailed fieldwork‐supported studies have rarely focused on the internal structure that can contribute to understanding of emplacement dynamics. The Alamosa River monzonite pluton is a postcollapse intrusion at the Platoro caldera complex that erupted six large ignimbrites between 30...

Tomek, Filip; Gilmer, Amy K.; Petronis, M. S.; Lipman, Peter W.; Foucher, M. S.

Publication Thumbnail
Year Published: 2019

Earthquakes, PAGER

PAGER, short for Prompt Assessment of Global Earthquakes for Response, is an automated system developed and run by the US Geological Survey (USGS) that produces information concerning the impact of significant earthquakes around the world within approximately 20 min of any magnitude 5.5 or larger event. PAGER rapidly assesses earthquake impacts by...

Wald, David J.; Jaiswal, Kishor; Marano, Kristin; Hearne, Mike

Photos and videos described and linked on this webpage come from a wide variety of USGS science activities and presentations performed by USGS Science Center staff members in the Region 7-Upper Colorado Basin.

Filter Total Items: 524
old-fashioned black and white photo of erupting geyser, and people standing around looking at it
December 31, 1878

Old Faithful Geyser erupting, c.1878

Old Faithful Geyser in Upper Geyser Basin. 1878(?). Yellowstone National Park, Wyoming. U.S. Geological and Geographical Survey of the Territories (Hayden Survey).

Three men posed under a canvas tent
October 31, 1868

Clarence King in camp, Salt Lake City, Utah

Clarence King in camp, Salt Lake City, Utah. United StatesGeological Exploration of the Fortieth Parallel (King Survey). 1868. Plate 96: Clarence King in camp, near Salt Lake City, Utah. October 1868.
(Photo by T.H. O'Sullivan.) 

Image: USGS Researcher at Mesa Alta, New Mexico

USGS Researcher at Mesa Alta, New Mexico

USGS researcher Craig Allen stands on the edge of Mesa Alta, amid diverse forest and woodland in the uplands of northern New Mexico; note some recently dead ponderosa pine and Douglas-fir in the field of view. Forest drought stress is strongly correlated with tree mortality from poor growth, bark beetle outbreaks, and high-severity fire.

Image: Elk in Northwestern Wyoming

Elk in Northwestern Wyoming

Elk congregate on the Camp Creek Feed Ground in northwestern Wyoming.

Image: Prescribed Fire at Sunset in the Jemez Mountains, New Mexico

Prescribed Fire at Sunset in the Jemez Mountains, New Mexico

Sunset as seen through the smoke of a prescribed burn in the Jemez Mountains, New Mexico. The burn was conducted to restore fire as an ecosystem process and reduce hazardous tree densities and fuel loads due to more than 100 years of fire suppression. Foreground trees (Douglas-fir and aspen) were killed during the Cerro Grande fire in 2000. Forest drought stress is

...
Image: Elk in Northwestern Wyoming

Elk in Northwestern Wyoming

Elk congregate on the Camp Creek Feed Ground in northwestern Wyoming.

This page includes links to Social Media accounts (top of page), Science Centers (middle of page), and Regional Office staff members (bottom of page) of the USGS Region 7--Upper Colorado Basin.