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Oklahoma

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The Southwest Region ranges from the Colorado Rockies to the Gulf Coast and the Western Deserts to the Great Plains. The Southwest Region conducts multi- and interdisciplinary research and monitoring in locations across the Region, the United States, around the world, and across our solar system.

Oklahoma Water Science Center

Oklahoma Water Science Center

The OKWSC collects high-quality hydrologic data and conducts unbiased, scientifically sound research on Oklahoma's water resources.

Go to Science Center

South Central Climate Adaptation Science Center

South Central Climate Adaptation Science Center

South Central CASC researchers are working throughout the region to understand how future climate might impact fish, wildlife, water, land, and people.

Go to Science Center

News

Date published: May 24, 2019

Media Advisory: USGS Crews Measure Record Flooding in Oklahoma

Reporters: Do you want to Accompany USGS Scientists as they Measure Record Flooding in Oklahoma? Please Contact Heidi Koontz or Jason Lewis.

Date published: June 1, 2018

Oklahoma Study Reveals Possible, Previously Unknown Sources of Earthquakes

Magnetic measurements made during low-altitude airplane flights conducted for the U.S. Geological Survey and the Oklahoma Geological Survey reveal possible deep faults that may contribute to increased seismic activity in response to wastewater injection in certain portions of Oklahoma.

Oklahoma Groundwater Effects. Turner Falls, the largest waterfall in Oklahoma, near Davis, Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls.

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Filter Total Items: 55
USGS
Date Published: June 26, 2019
Status: Active

Information by Region - Oklahoma

  

Application to explore US Oil and Gas Assessments
Date Published: April 19, 2019
Status: Active

United States Assessments of Undiscovered Oil and Gas Resources

USGS Energy Resources Program provides periodic assessments of the oil and natural gas endowment of the United States and the World (click here for information about World Oil and Gas Assessments).  This website provides access to new, prioritized, assessment results and supporting data for the United States, as part...

2017 Midwest Spring Floods
Date Published: February 26, 2019
Status: Completed

2017 Midwest Spring Floods

Learn more about USGS flood activities related to the 2017 Midwest Spring Floods that occurred across large portions of Missouri, Illinois, Indiana, Ohio, Oklahoma, and Arkansas in late April and early May, 2017.

Measuring floodwater
Date Published: February 26, 2019
Status: Archived

Continuous Water-Quality Monitoring During December 2015-January 2016 Flood Events

During the late December 2015-early January 2016 storm event, two sewage-treatment plants and a drinking-water plant in Missouri were inundated by water and failed, contributing untreated sewage to the floodwaters. The USGS collected water-quality samplesat key locations in the Mississippi and Missouri River Basins and continued to sample the flood surge as it moved down the Mississippi River...

WY2015 cumulative streamflow graph for Elkhorn Creek near Frankfort KY
Date Published: February 26, 2019
Status: Completed

Summer 2015 Central Floods

Learn more about USGS flood activities related to the Summer 2015 Central Floods that occured when heavy rains caused flooding in four states in the central U.S.

May-June 2013 Midwest floods
Date Published: February 25, 2019
Status: Completed

May-June 2013 Midwest Floods

Learn more about USGS flood activities related to the May-June 2013 Midwest Floods.

Canton Lake - February 17, 2013
Date Published: February 14, 2019
Status: Active

Hydrologic Summary for the Cheyenne and Arapaho Tribal Jurisdictional Area

The objectives of this proposed project are to compile and evaluate existing data and reports from the USGS, other government agencies, and tribes to summarize the types of data that have been collected in the area and identify gaps in those data. Such analysis will provide a comprehensive background document of geographic, hydrologic, and environmental features of the area and will identify...

Contacts: Carol Becker
Province 5062 Arkoma Basin, National Oil and Gas Assessments
Date Published: December 7, 2018
Status: Active

Arkoma Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Arkoma Basin Province 5062:

Province 5061 Southern Oklahoma Oil and Gas Assessments
Date Published: December 7, 2018
Status: Active

Southern Oklahoma Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered continuous oil and gas resources of the Southern Oklahoma Province (5061):

 

Nemaha Uplift Province 5055 National Oil and Gas Assessment
Date Published: December 7, 2018
Status: Active

Nemaha Uplift Province Oil and Gas Assessment

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Nemaha Uplift Province (5055):

 

Province 5043 Palo Duro Basin National Oil and Gas Assessments
Date Published: December 6, 2018
Status: Active

Palo Duro Basin Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas resources of the Palo Duro Basin Province 5043 in Texas, New Mexico, and Oklahoma:

 

Province 5060, Cherokee Platform, Oil and Gas Assessments
Date Published: November 30, 2018
Status: Active

Cherokee Platform Oil and Gas Assessments

The U.S. Geological Survey completed the following assessments of undiscovered oil and gas potential of the Cherokee Platform Province 5060 in Western Oklahoma, Southeast Kandas and Western Missouri:

Oklahoma Groundwater Effects. Turner Falls, the largest waterfall in Oklahoma, near Davis, Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls.

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NWIS Mapper screenshot
March 5, 2019

The NWIS mapper provides access to over 1.5 million sites contained in the USGS National Water Information System (NWIS), including sites where current and historical surface-water, groundwater, springs, and atmospheric data has been collected. Users can search by site type, data type, site number, or place.

USGS
January 1, 2019

Regional grid files and 3D voxel models were used to study crustal architecture beneath the Southern Midcontinent (USA) by McCafferty and others (2019). The study covered a rectangular, multi-state area of 924 by 924 kilometers centered on Missouri, and a corresponding volume extending from the topographic surface to a depth of 50 kilometers below sea level. The grid files consist of surface gri

USGS
January 1, 2019

Groundwater age distribution and susceptibility to natural and anthropogenic contaminants were assessed for selected principal aquifers of the Western United States: the Central Valley aquifer system (CVAL), the Basin and Range basin-fill aquifers (BNRF), the Rio Grande aquifer system (RIOG), the High Plains aquifer (HPAQ), the Columbia Plateau basaltic-rock aquifers (CLPT), and the Colorado Plat

Image of data download web page
December 6, 2018

GIS Data for Arkoma Basin Oil and Gas Assessments

Image of data download web page
December 6, 2018

GIS Data for Southern Oklahoma Oil and Gas Assessments

Image of data download web page
December 6, 2018

GIS Data for Nemaha Uplift Oil and Gas Assessments

Image of data download web page
December 6, 2018

GIS Data for Palo Duro Basin Oil and Gas Assessments 

Image of data download web page
November 30, 2018

 Downloadable Data for Cherokee Platform Oil and Gas Assessments 

Image of data download web page
November 30, 2018

Downloadable Data for Anadarko Basin Oil and Gas Assessments 

Image of data download web page
November 29, 2018

Downloadable Data for Bend Arch-Fort Worth Basin Oil and Gas Assessments 

Interactive map and chart highlighting USGS Domestic Continuous (Unconventional) Oil & Gas Assessments, 2000-Present
August 28, 2018

Interactively explore assessment summary information for continuous (unconventional) assessments conducted at the USGS from 2000-2018. The assessment results data used to generate this visualization can be downloaded here in Excel Format.  These data represent all assessment results for Continuous Assessments only from 2000-2018.

USGS
January 1, 2018

Airborne magnetic surveys were conducted in Oklahoma from August 11th, 2017-October 28th, 2017, by Goldak Airborne Surveys. Here we present downloadable flight line data from those surveys in comma-separated values (csv format). Three areas were flown along a draped surface with a nominal survey height above ground of 120 meters. The flight line spacing for these areas was 200 to 400 m for Area 1

Oklahoma Groundwater Effects. Turner Falls, the largest waterfall in Oklahoma, near Davis, Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls.

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Application to explore US Oil and Gas Assessments
March 19, 2019

This map shows the provinces assessed by the USGS for undiscovered oil and gas resources. 

GRDA bathymetry
September 22, 2017

View topographic and bathymetric contour data and query water depths for the Neosho River, Spring River and Elk River, in northeastern Oklahoma.

Funding partners: Grand River Dam Authority

OK earthquake map
August 2, 2017

Information on the latest earthquakes in Oklahoma.

Miami Inundation Pilot Viewer
January 1, 2017

View topographic and bathymetric contour data and simulate Neosho River inundation areas for selected (and real-time) water-surface elevations at Grand Lake and the Neosho River streamgage near Commerce

Funding partners: U.S. Army Corps of Engineers, Grand River Dam Authority, and Oklahoma Department of Wildlife 

Shawnee Reservoir Data Viewer
January 1, 2017

View topographic and bathymetric contour data and simulate Shawnee (Twin Lakes) Reservoir inundation areas for selected (and real-time) water-surface elevations.

Funding partners: City of Shawnee

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

Grand Lake Image
March 3, 2016

Grand Lake Data Viewer - View topographic and bathymetric contour data and simulate Grand Lake inundation areas for selected water-surface elevations.

Funding partners: U.S. Army Corps of Engineers, Grand River Dam Authority, and Oklahoma Department of Wildlife Conservation

 

OK drought watch example
January 1, 2016

Drought monitoring for Oklahoma.

dbflood-image
September 1, 2015

Flood Database for Oklahoma - Obtain records of historical flood depth and discharge measurements as well as flood-related news clippings.

Funding partners: Oklahoma Department of Transportation

StreamStats in Oklahoma
January 1, 2015

Delineate custom drainage basins, compute basin characteristics, and estimate streamflow statistics.

Funding partners: Oklahoma Department of Transportation and Oklahoma Water Resources Board

OK flood map example
January 1, 2010

View flooding high and low flows for streams and rivers throughout Oklahoma on the USGS WaterWatch website.

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Year Published: 2019

The LArge-n Seismic Survey in Oklahoma (LASSO) experiment

In 2016, the U.S. Geological Survey deployed more than 1,800 vertical-component nodal seismometers in Grant County, Oklahoma to study induced seismic activity associated with production of the Mississippi Limestone Play. The LArge-n Seismic Survey in Oklahoma (LASSO) array operated for approximately one month, covering a 25-km-by-32-km region with...

Dougherty, S.; Cochran, Elizabeth S.; Harrington, R. M.
Dougherty, S.L., Cochran, E.S., and Harrington, R.M. (2019). The LArge-n Seismic Survey in Oklahoma (LASSO) Experiment, Seismological Research Letters, 90 (5): 2051-2057, doi:10.1785/0220190094.

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Year Published: 2019

Calcrete uranium deposits in the Southern High Plains, USA

The Southern High Plains (SHP) is a new and emerging U.S. uranium province. Here, uranyl vanadates form deposits in Pliocene to Pleistocene sandstone, dolomite, and limestone. Fifteen calcrete uranium occurrences are identified; two of these, the Buzzard Draw and Sulfur Springs Draw deposits, have combined in-place resources estimated at about 4...

Hall, Susan; Van Gosen, Bradley S.; Paces, James B.; Zielinski, Robert A.

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Year Published: 2019

Rupture model of the M5.8 Pawnee, Oklahoma earthquake from regional and teleseismic waveforms

The 2016 M5.8 Pawnee, Oklahoma earthquake is the largest earthquake to have been induced by wastewater disposal. We infer the coseismic slip history from analysis of apparent source time functions and inversion of regional and teleseismic P‐waveforms, using aftershocks as empirical Green's functions. The earthquake nucleated on the shallow part of...

Moschetti, Morgan P.; Hartzell, Stephen H.; Herrmann, R. B.

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Year Published: 2018

Ground motions from induced earthquakes in Oklahoma and Kansas

Improved predictions of earthquake ground motions are critical to advancing seismic hazard analyses and earthquake response. The high seismicity rate from 2009 to 2016 in Oklahoma and Kansas provides an extensive data set for examining the ground motions from these events. We evaluate the ability of three suites of ground‐motion prediction...

Moschetti, Morgan P.; Thompson, Eric M.; Powers, Peter M.; Hoover, Susan M.; McNamara, Daniel E.

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Year Published: 2018

Observations of rotational motions from local earthquakes using two temporary portable sensors in Waynoka, Oklahoma

Characterizing rotational motions from earthquakes at local distances has the potential to improve earthquake engineering and seismic gradiometry by better characterizing the complete seismic wavefield. Applied Technology Associates (ATA) has developed a proto‐seismic magnetohydrodynamic (SMHD) three‐component rotational rate sensor. We deploy two...

Ringler, Adam T.; Anthony, Robert E.; Holland, A.A.; Wilson, David C.; Lin, C.-J.

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Year Published: 2018

State transportation agencies partner to deploy and enhance ShakeCast

The California Department of Transportation (Caltrans) is organizing and leading a three-year Transportation Pooled Fund (TPF) project, Connecting the Dots: Implementing ShakeCast Across Multiple State Departments of Transportation for Rapid Post-Earthquake Response. Ten state Departments of Transportation (DOT)—CA, ID, MO, MS, OK, OR, SC, TX, UT...

Turner, L.; Wald, David J.; Lin, Kuo-wan; Chiou, Brian; Slosky, Daniel

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Year Published: 2018

Induced earthquake and liquefaction hazards in Oklahoma, USA: Constraints from InSAR

Oklahoma experienced three earthquakes of Mw5.0 or greater in 2016: the 13-Feb. Fairview earthquake (Mw5.1), the 03-Sep. Pawnee earthquake (Mw5.8), and the 07-Nov. Cushing earthquake (Mw5.0). These events are the first earthquakes in the state exceeding Mw5.0 since the 2011 Mw5.7 Prague earthquake and likely result from wide-scale deep...

Barnhart, William D.; Yeck, William L.; McNamara, Daniel E.
Barnhart, W. D., Yeck, W. L., & McNamara, D. E. (2018). Induced earthquake and liquefaction hazards in Oklahoma, USA: Constraints from InSAR. Remote Sensing of Environment, 218, 1-12.

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Year Published: 2018

A flatfile of ground motion intensity measurements from induced earthquakes in Oklahoma and Kansas

We have produced a uniformly processed database of orientation-independent (RotD50, RotD100) ground motion intensity measurements containing peak horizontal ground motions (accelerations and velocities) and 5-percent-damped pseudospectral accelerations (0.1–10 s) from more than 3,800 M ≥ 3 earthquakes in Oklahoma and Kansas that occurred...

Rennolet, Steven B.; Moschetti, Morgan P.; Thompson, Eric M.; Yeck, William L.

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Year Published: 2017

Assessment of undiscovered resources in calcrete uranium deposits, Southern High Plains region of Texas, New Mexico, and Oklahoma, 2017

The U.S. Geological Survey estimates a mean of 40 million pounds of in-place uranium oxide (U3O8) remaining as potential undiscovered resources in the Southern High Plains region of Texas, New Mexico, and Oklahoma. This estimate used a geology-based assessment method specific to calcrete uranium deposits.

Hall, Susan M.; Mihalasky, Mark J.; Van Gosen, Bradley S.
Hall, S.M., Mihalasky, M.J., and Van Gosen, B.S., 2017, Assessment of undiscovered resources in calcrete uranium deposits, Southern High Plains region of Texas, New Mexico, and Oklahoma, 2017: U.S. Geological Survey Fact Sheet 2017–3078, 2 p., https://doi.org/10.3133/fs20173078.

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Year Published: 2017

Considerations in comparing the U.S. Geological Survey one‐year induced‐seismicity hazard models with “Did You Feel It?” and instrumental data

The recent steep increase in seismicity rates in Oklahoma, southern Kansas, and other parts of the central United States led the U.S. Geological Survey (USGS) to develop, for the first time, a probabilistic seismic hazard forecast for one year (2016) that incorporates induced seismicity. In this study, we explore a process to ground‐truth the...

White, Isabel; Liu, Taojun; Luco, Nicolas; Liel, Abbie
White IJO, Liu T, Luco N, & Liel AB (2017), "Considerations in Comparing the U.S. Geological Survey One-Year Induced-Seismicity Hazard Models with "Did You Feel It?" and Instrumental Data," Seismological Research Letters, Vol. 89(1), pp. 127-137.

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Year Published: 2017

Spatio-temporal evolution of the 2011 Prague, Oklahoma aftershock sequence revealed using subspace detection and relocation

The 6 November 2011 Mw 5.7 earthquake near Prague, Oklahoma is the second largest earthquake ever recorded in the state. A Mw 4.8 foreshock and the Mw 5.7 mainshock triggered a prolific aftershock sequence. Utilizing a subspace detection method, we increase by fivefold the number of precisely located events between 4...

McMahon, Nicole D; Aster, Richard C.; Yeck, William L.; McNamara, Daniel E.; Benz, Harley M.
McMahon, N. D., R. C. Aster, W. L. Yeck, D. E. McNamara, and H. M. Benz (2017), Spatiotemporal evolution of the 2011 Prague, Oklahoma, aftershock sequence revealed using subspace detection and relocation, Geophys. Res. Lett., 44, doi:10.1002/2017GL072944.

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Year Published: 2017

Oklahoma experiences largest earthquake during ongoing regional wastewater injection hazard mitigation efforts

The 3 September 2016, Mw 5.8 Pawnee earthquake was the largest recorded earthquake in the state of Oklahoma. Seismic and geodetic observations of the Pawnee sequence, including precise hypocenter locations and moment tensor modeling, shows that the Pawnee earthquake occurred on a previously unknown left-lateral strike-slip basement fault that...

Yeck, William L.; Hayes, Gavin P.; McNamara, Daniel E.; Rubinstein, Justin L.; Barnhart, William D.; Earle, Paul S.; Benz, Harley M.
Yeck, W. L., G. P. Hayes, D. E. McNamara, J. L. Rubinstein, W. D. Barnhart, P. S. Earle, and H. M. Benz (2017), Oklahoma experiences largest earthquake during ongoing regional wastewater injection hazard mitigation efforts, Geophys. Res. Lett., 44, 711–717,

Oklahoma Groundwater Effects. Turner Falls, the largest waterfall in Oklahoma, near Davis, Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls.

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July 25, 2019

Climate Projections as a Way to Illustrate Future Possibilities

This video is a recording of the webinar “Climate Projections as a Way to Illustrate Future Possibilities" that is part of the USGS National Climate Adaptation Science Center (NCASC), in partnership with the National Conservation Training Center (NCTC), 2019 webinar series. Previous recordings can be found at https

...
Image from an application that navigates users through USGS National Oil and Gas Assessment Provinces
November 14, 2018

National Oil and Gas Assessment Provinces

This is a graphic from the USGS National Oil and Gas Assessment Explorer application, which allows user to drill into 70 oil and gas assessment provinces throughout the United States.

Rafters on the Illinois River
May 7, 2018

Illinois River Floatcam

Rafters enjoy the floating down the Illinois River in northeast Okalahoma.

December 31, 2017

Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010

Groundwater use from the Ozark Plateaus aquifer system, 1900 to 2010” is a short video showing modeled groundwater withdrawal rates from the Ozark Plateaus aquifer system (Ozark system) in the central United States. The Ozark Plateaus Groundwater Availability Study aims to quantify current groundwater resources in the Ozark system, evaluate how these resources have changed

...
August 7, 2017

Developing Effective Drought Monitoring Tools for Farmers and Ranchers

This webinar was conducted on August 7, 2017 as part of the USGS National Climate Change and Wildlife Science Center’s Climate Change Science and Management Webinar Series, held in partnership with the USFWS National Conservation Training Center. 

Webinar Summary: The South Central U.S. is one of the main agricultural regions in North America: annual agricultural

...
Tonkawa Geoprobing 052517
May 25, 2017

Tonkawa Geoprobing 052517

Tonkawa Geoprobing 052517

Chikaskia River at Tonkawa, OK
May 9, 2017

Chikaskia River at Tonkawa, OK

Chikaskia River at Tonkawa, OK

Geoprobe fieldwork at Tonkawa, OK
May 9, 2017

Geoprobe fieldwork at Tonkawa, OK

Geoprobe fieldwork at Tonkawa, OK

Groundwater-monitoring well in Osage County, Oklahoma.
April 5, 2017

Groundwater-monitoring well in Osage County, Oklahoma.

Groundwater-monitoring well and telemetry equipment in Osage County, Oklahoma

Kansas Wildfires, March 2017, Landsat 8
March 31, 2017

March Wildfires Scorch Kansas, Oklahoma Farm and Ranch Land

This March 2017 Landsat 8 image shows massive burned scars in Kansas and Oklahoma. More than 730,000 acres of farm and ranchland were scorched by wind-driven wildfires that began March 6 and were finally extinguished on March 22.

Pine Creek near Moyer, OK
March 30, 2017

Pine Creek near Moyer, OK

Pine Creek near Moyer, OK

Satellite image showing burn damage caused by fires.
March 17, 2017

Fires Burn Farms and Ranches in Oklahoma and Kansas

Landsat's shortwave infrared (SWIR) band measures reduced moisture content in soil and vegetation. When combined with its near-infrared (NIR) band, which helps reveal actively growing vegetation, Landsat produces highly accurate images and maps of burned areas.

Oklahoma Groundwater Effects. Turner Falls, the largest waterfall in Oklahoma, near Davis, Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls.

Filter Total Items: 55
USGS Scientists Measure Record Flooding in Oklahoma
May 24, 2019

Reporters: Do you want to Accompany USGS Scientists as they Measure Record Flooding in Oklahoma? Please Contact Heidi Koontz or Jason Lewis.

Map of Oklahoma Low-Level Flight Study Area, Approximate
June 1, 2018

Magnetic measurements made during low-altitude airplane flights conducted for the U.S. Geological Survey and the Oklahoma Geological Survey reveal possible deep faults that may contribute to increased seismic activity in response to wastewater injection in certain portions of Oklahoma.

Satellite captured image of the rapidly intensifying storm, Harvey
September 6, 2017

USGS Oklahoma Water Science Center staff are assisting the Texas Water Science Center with streamflow measurements and high-water mark determinations in the aftermath of Hurricane Harvey.  This information is vital for future flood warnings issued by the National Weather Service.

Image shows a geologic map of the Lower 48
August 21, 2017

A carbonatite here, a glacial moraine there, a zig-zagging fault or two, even a behemoth of a batholith. The geology of the 50 States is an enormous patchwork of varied forms, beautiful in their variance but challenging to present as a single map.

House damage in central Oklahoma from a magnitude 5.6 earthquake in 2011
August 11, 2017

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project.  Your assistance in informing the local communities is appreciated.

High Plains aquifer water-level changes, predevelopment to 2015
June 16, 2017

The U.S. Geological Survey has released a new report detailing changes of groundwater levels in the High Plains aquifer. The report presents water-level change data in the aquifer for two separate periods: from 1950 – the time prior to significant groundwater irrigation development – to 2015, and from 2013 to 2015.

USGS
February 17, 2017

Small variations in the density of the earth’s crust—undetectable to humans without sensitive instruments—influence where earthquakes may occur in the central United States. These new findings from the U.S. Geological Survey, published today in Nature Communications, may allow scientists to map where future seismicity in the center of the country is most likely.

Oklahoma
October 24, 2016

Distant wastewater disposal wells likely induced the third largest earthquake in recent Oklahoma record, the Feb. 13, 2016, magnitude 5.1 event roughly 32 kilometers northwest of Fairview, Oklahoma. These findings from the U.S. Geological Survey are available in the online edition of Geophysical Research Letters.

Crop of OK earthquake
September 3, 2016

A magnitude 5.8 earthquake struck in Oklahoma on September 3, 2016 at 12:02:44 UTC (7:02 am local time). 

Oklahoma Groundwater Effects. Turner Falls, the largest waterfall in Oklahoma, near Davis, Oklahoma. Springs discharging from the Arbuckle-Simpson aquifer into Honey Creek are the source of water to Turner Falls.

@usgsminerals
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