Mann was ongoing here in 1939 (Davis and Trought 1940). The massive glaciers, the meteorite impacts, the sagging Illinois basina lot has gone on in this seemingly serene, cow-studded, cornfield-carpeted land. miles (16 km) in diameter and its total structural relief is The origin of Hicks Dome is clearly related to igneous The earthquakes were by far the largest east of the Rockies in North America. > Volcanic Breccia (Agglomerate), New Madirio Fault Zone, 38th Parallel Lineament, Hicks Dome - An Incipient Cryptovolcanic Structure. However, slightly elevated values of copper and rare earth elements were suggested. Surrounding fracturing at the juncture of the Reelfoot Rift and Rough Creek Graben provided pathways for mantle-derived magmas to intrude into the sedimentary column. Below are weather averages from 1971 to 2000 according to data gathered from the nearest The possibility is suggested that this could have been picked up from the formerly overlying New Albany, or Chattanooga, shale (Brown 1954). Freiburg, and W.H. It has been suggested that Hicks Dome resulted from a meteorite impact, but the surficial and underground structure of the dome clearly indicate that the forces that formed the dome came from below, rather than above the surface (Bradbury 1992). The borehole at the apex encountered Rock samples from Hicks Dome and the surrounding region that were analyzed far exceed the silica cut-off to be considered a carbonatite (sensu stricto), yet a strong, consistent spatial association of abundant carbonate with igneous rocks throughout the region and similar patterns in LIL (large ion lithophyle), HFS (high field strength) and RE (rare earth) elements with carbonatites worldwide supports that magmatic carbon was part of the lamprophyre system at Hicks Dome. Hicks Dome ( 37.53139N 88.36833W) is a geological feature in Hardin County. Hicks Dome in Hardin County is a feature that is both a topographic and structural dome forming a bull's-eye pattern on a geologic map. Woolley, A.R., 1987, Alkaline rocks and carbonatites of the world; Part 1, North and South America: London, United Kingdom, British Museum of Natural History, 216 p. Hick's Dome was caused by a volcano 150 - 250 million years ago. The Pankey No. Thanks to plate tectonics, the eastern U.S. it has been isolated from global tectonic features (tectonic plate boundaries and hot spots in the mantle) that cause volcanic activity. Richard C. Berg, Director
Rohrer (Weller et al. So one day, out of curiosity, It is associated with faults and fractured rock, and is accompanied by igneous rocks and mineral deposits. Tell us the time of year, what your goal was, and how your trip went. It is about five miles in diameter, less than 280 million years old, is buried beneath the land surface, and exhibits shatter cones, which form below impact craters as a result of rock being subject to extreme shock and pressure. A total structural relief of roughly 4,000 feet brings Middle Devonian rocks to the surface at the apex, surrounded by outward-dipping belts of younger strata. The depth of the mineralization together with unresolved questions regarding how to process this unusual mineral deposit have so far deterred interest in mining the deposit at Hicks Dome. S. Weller et al. Or, if the crime was committed by someone you know, you may want to protect them. Ore mineralization has been found at this location, however the precise grade, tonnage, and extent of the mineralization are not known. The diameter of the dome is about 10 miles. There was considerable sculpting of the bedrock landscape along the upper Illinois River and the formation of large bars and terraces along lower portions of the river. > Mafic Intrusive Rock, Volcanic Rock (Aphanitic) Plate 2 Fluorspar Area Fault Complex and Shawneetown Fault Zone, Fluorspar Area Fault Complex and Shawneetown Fault Zone, https://isgswikis.web.illinois.edu/ilstruc/index.php?title=Hicks_Dome&oldid=2423, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Brownfield, M.R. The roughly circular dome has prominent topographic expression on aerial photos and satellite images. Highly brecciated rock crops out near and M.E. The nearest weather station for both precipitation and SURVEY, Hicks Dome Rare - Earth, Thorium Prospects, Jr. No. Additional seismic data sources. intended to be printed at 22.75"x29" or larger. A normal sequence of formations was encountered down to 1,600 feet, but at about that depth the drill entered a confused brecciated zone, which persisted to the bottom of the hole at 2,944 feet. Utah Utah has four volcanic fields. Some believe the dome may be related to an ancient meteor or comet impact, or a part of the 38th parallel structures, a string of geological features running to Kansas. (Solved! Faults surround the dome concentrically with other northeast-trending faults crosscutting it. Igneous diatremes are scattered throughout the region, and nearly vertical dike-like intrusive breccia bodies radiate from the center of Hicks Dome (Baxter et al. BROWN, J.S., EMERY, J.A., AND MEYER, P.A., JR., 1954, EXPLOSION PIPE IN TEST WELL ON HICKS DOME, HARDIN COUNTY, ILLINOIS: ECON. (10 km) northeast of the apex. a maximum of about 20 (as much as 45 locally) about 1 mile (2017) reported the geochemical analysis of a sample composed of a mixture of calcite and fluorite collected from the mine dump in this area. Data were collected along east-west flight lines spaced 200 meters apart with north-south tie lines flown every 3,000 meters. ). Host breccia is richer in rock flour, which is porous and susceptible to fluoriterare earth mineralization (Larry Nuelle, personal communication with Ross Lillie, May 2018). You can also find volcanoes in Japan, Africa, the Land of Ice, Italy, Greece, Mexico, Argentina and Indonesia. Keywords: uorite, Hicks Dome, Mississippi Valley-type deposit, Illinois-Kentucky These 10 Cozy Cabins & Lodges Are Perfect For Your Winter Getaway, The 8 Best Snowshoeing Trails You Need To Experience In Washington, The eMTB Controversy: eBikes Should Be Allowed On Mountain Bike Trails, A Unique Tunnel in Southern California to Explore. Deposit type. The USGS (U.S. Geological Survey) publishes a set of topographic maps of the U.S. commonly Shaw, 1967, Areal geology of the Illinois Fluorspar District: Part 3Herod and Shetlerville Quadrangles: Illinois State Geological Survey, Circular 413, map, 1:24,000; report, 41 p. and 1 pl. 1920, J. Weller et al. Several test holes drilled near the crest of Hicks Dome disclosed significant mineralization in the Ordovician strata over a thickness of more than 200 feet. breccias. The nearest weather station for both precipitation and temperature measurements is ROSICLARE 5 NW which is approximately 5 miles away and has an elevation of 400 feet (266 feet lower than Hicks Dome). and GLASFORD STRUCTURE. The feature resulting from a large meteorite impact is known as the Des Plaines Disturbance. View of Hicks Dome, Hardin County, Illinois, looking East. The Hicks Dome is a structural dome in which the central Devonian core is displaced approximately 4,000 feet upward relative to the surrounding strata. This page was last edited on 22 July 2021, at 16:20. Carbonatite. Most geologists who have studied Hicks Dome in southern Illinois, interpret it as the product of one or more underground explosions and is defined as a cryptoexplosive or cryptovolcanic feature (Nelson, 1995, Structural features in Illinois, Bulletin 100). there is evidence that the Hicks Dome is of volcanic origin. Abstract: In 1952, St. Joseph Lead Company drilled a well on the apex of Hicks Dome in Hardin County, Illinois, primarily to explore for oil or gas, and with the objective of testing the St. Peter sand horizon, which had not been reached in a previous well on the flank of the dome. A correlation of formations between this and the earlier Fricker well is presented. are younger than the dome and ultramafic intrusions. Alaska. In the 1970s, mineral exploration for fluorspar, beryllium, thorium, and rare earth elements was conducted through a cost-sharing agreement between the USGS Office of Mineral Exploration and a private entity operated by John Lee Carroll named the Hicks Dome Account (HDA; Office of Mineral Exploration docket no. Data sources include the United States Board on Geographic Names, National Weather Service, U.S. Census Bureau, NASA, and Google. Free program, no charge approximately 4,000 feet (1,200 m). The region is characterized as highly jointed and fractured rock, where the impact of the meteorite resulted in the rock compressing and then bobbing up ~800 feet, resulting in older rocks within the crater feature. Staatz, M.H., T.J. Armbrustmacher, J.C. Olson, I.K. Overview Fingerprint Abstract Hick's Dome is a crypto-volcanic feature within the south-central portion of the Illinois Basin. In southeastern Illinois' Hardin County, Hicks Dome rises above the land surface over 300 feet and is about 10 miles wide. My exploration and documentation of craters (presently only on this planet). Middle Devonian chert and limestone form a hill at the center. The Hicks Dome is a structural dome in which the central Devonian core is displaced approximately 4,000 feet upward relative to the surrounding strata. Complex breccia is generally a fragment-supported heterolithologic breccia with little to no rock flour matrix. Other mines and prospects in the area of Hicks Dome are described below. A small steam shovel dug the pits to extract gravel spar (Bastin 1931). Hicks Dome is approximately 10 Champaign, IL 61820
Grogan, and F.E. Examples of extinct volcanoes are Mount Thielsen in Oregon in the United States and Mount Slemish in Colorado. 7 PM Public is welcome! Middle Devonian rocks at the center are surrounded concentrically by younger rocks out to Pennsylvanian on the rim. 4. xenotime. Where are dormant Illinois volcanoes? this is a circular valley underlain by shale of the New Albany Group. The GPS coordinates are 37.5314387 (latitude), -88.3683731 (longitude) and the approximate elevation is 666 feet (203 meters) above sea level. A lock () or https:// means youve safely connected to the .gov website. 363, 12 P. 1960 GEOLMAP ILL. STATE GEOLOGICAL SURVEY, BAXTER ET AL, 1964 GEOPHYS ILL. STATE GEOLOGICAL SURVEY; AEROMAG. Geologists working on the deposit designated the breccia as either complex breccia or host breccia. The mine was active in 1928 through the spring of 1929 and produced a small amount of ore, which was shipped to Marion, Kentucky, to be milled (Davis 1929). Flanking dips increase to Most volcanoes are located in the Ring of Fire. The. Southern Illinois Hiking Attractions Near Willowbrook Cabins (618) 672-4815. The dome is about 10 miles in diameter. This location's average precipitation levels are This Cook County feature underlies the northeastern portion of OHare International Airport. much breccia, but no conclusively igneous rock was Hicks Dome is a structural dome which has its central Devonian core displaced upward some 4,000 feet (1,200 m) in relation to the surrounding strata. > Pyroclastic Rock This phenomenon was responsible for the fluorspar, zinc, lead, and silver that is found in the area. Category: Summits, Hardin County Cliffs (2) Devonian chert and limestone form a hill at the center. Three very large seismic events shook the region; more than 200 moderate to large aftershocks also occurred. Faults surround the dome concentrically with other northeast-trending faults crosscutting it. The Hicks Dome uplifted ~1200 meters, observed from the west. Bradbury, J.C., and J.W. The Hicks Dome in Hardin County, an extinct Illinois volcano, is a feature that is both a topographic and structural dome that forms a bullseye pattern on a geological map. Please search for specific craters. activity, but no pluton or laccolith at depth is indicated, as in Most geologists who have studied Hicks Dome in southern Illinois, interpret it as the product of one or more underground explosions and is defined as a cryptoexplosive or cryptovolcanic feature (Nelson, 1995, Structural features in Illinois, Bulletin 100). Photos provided by Flickr are under the copyright of their owners. An official website of the United States government. Alaska is home to the most potentially active volcanoes in the United States, with 141, according to the Alaska Volcano Observatory. The Illinois-Kentucky Fluorite District, Hicks Dome, and Garden of the Gods in southeastern Illinois and northwestern Kentucky | From the Cincinnati Arch to the Illinois Basin: Geological Field Excursions along the Ohio River Valley | GeoScienceWorld Books | GeoScienceWorld All Books By Publisher Prev Next Book Chapter Extinct Illinois Volcano, Hicks Dome in Hardin County is a feature that is both a topographic and structural dome forming a bull's-eye pattern on a geologic map. Hicks Dome, a cryptovolcanic feature in the northwestern part of the Fluorspar Area Fault Complex, played a key role in the structural evolution of the region. The brecciated portion of the hole was mineralized continuousuly but erratically with fluorspar generally ranging from about 5 percent in the upper portion of the breccia to 2 percent at the bottom. There is evidence that Hicks Dome is volcanic in origin. Useful ways to prevent these annoying bra straps from showing, How to make your glow-in-the-dark t-shirt, How to Make a Broom Potion in Wacky Wizards. and at the apex of Hicks Dome (fig. Jackson, W.D., and Christiansen, Grey, 1993, International strategic minerals inventory summary report-- Rare-earth oxides: U.S. Geological Survey Circular 930-N, 68 p. Find additional scientific data near this location, 252 13 Ma and 269 13 Ma (K-Ar, bio, mica peridotite). The northwest- official weather station. While some think of Illinois as flat or even boring that's not so when we consider the legacy that geologic processes and events have left on Illinois, as reflected by both the present-day land surface and subsurface. Similar massive flooding also occurred about 4,000 years later. 1954). The dominant structural feature of the Illinois portion of the IKFD is Hicks Dome, an elliptical to nearly circular uplift approximately 10 miles in diameter in western Hardin County and northeastern Pope County. The dominant structural feature of the Illinois portion of the IKFD is Hicks Dome, an elliptical to nearly circular uplift approximately 10 miles in diameter in western Hardin County and northeastern Pope County. A normal sequence of formations was encountered down to 1,600 feet, but at about that depth the drill entered a confused brecciated zone, which persisted to the bottom of the hole at 2,944 feet. The trip will conclude with a walking tour at the Garden of the Gods Recreational Area to view the Eagle Valley Syncline and Lower Pennsylvanian units. In 1969 and 1970, the Industrial Minerals Company excavated additional pits and recovered approximately 436 tons of ore grading 53% CaF. The dome has small associated igneous dikes around its flanks. 41) and was also encountered Plutonic Rock temperature measurements is ROSICLARE 5 NW which is approximately 5 miles away and has an elevation of 400 feet (266 feet lower than Hicks Dome). While many volcanoes are like this, others are not. The GPS coordinates are 37.5314387 (latitude), -88.3683731 (longitude) and the approximate elevation is 666 feet (203 meters) above sea level. Dome apparently developed during its formation. Some volcanoes are located near the subduction zones. expression on aerial photos and satellite images. The dome is about 10 miles in diameter, and rocks at its apex are uplifted 4,000 feet. MC GINNIS, L.D., AND BRADBURY, J.C., 1964, AEROMAGNETIC STUDY OF THE HARDIN COUNTY AREA, ILLINOIS: ILL. STATE GEOLOGICAL SURVEY CIRC. magnetic high, interpreted as a mafic pluton, about 6 miles THORIUM PROBABLY ACCOUNTS FOR THE 0.029% EQUIVALENT URANIUM IN THE UPPER PART OF THE BRECCIA. This location's average summer high temps are Baxter, 1992, Intrusive breccias at Hicks Dome, Hardin County, Illinois: Illinois State Geological Survey, Circular 550, 23 p. Davis, H.W., 1929, Fluorspar and cryolite. coinciding with the broad Tolu Arch that crosses the Fluorspar site were radioactive and contained unusual concentrations there is evidence that the Hicks Dome is of volcanic origin. Its called the Craters of the Moon, and its a very low threat. Although their findings are highly speculative, Staatz et al. The answer isIllinois! J.C. Bradbury and J.W. (1.6 km) out from the apex and gradually diminish farther THE HAMP WELL IS 895 M. DEEP, THE LOWER 408 M. OF WHICH INTERSECTS A MINERALIZED BRECCIA ZONE. part of the Fluorspar Area Fault Complex, played a key role The geologist in charge of the Hicks Dome project for Carroll was Joe Porter. Wiki User 2009-10-09 03:41:42 This answer is: Add a Comment Study guides Add your answer: Earn + 20 pts Q: What the closest volcano in Illinois?. This location's average winter low temps are The Hicks Dome is underlain by ultramafic igneous rocks and igneous diatremes or breccia pipes. Extinct Extinct volcanoes are those that have not erupted in the history of mankind. The region of Hicks Dome is rich in fluorite and other minerals. Geologic forces uplifted the rocks at the apex of Hicks Dome 1200 meters forming a circular feature that can be observed on aerial photographs and geologic maps. McGinnis and Bradbury (1964) showed no magnetic high identified (Brown et al. There is also a lot of information on Hicks Dome in Geology of Illinois including images showing the fault zones and the underlying and surrounding formations. Hint: Its landmarked by a volcano that never quite attained full status, megafloods, megaquakes, and a severe meteorite impact. higher than 55% of other locations on record. Because the nearest station and this geographic feature may have This is interpreted as one of the explosion type breccias, or diatremes, common in this Illinois-Kentucky area, as well as in nearby Missouri. Privacy Statement. well as links to download the map to your computer, or order a waterproof printed map. Middle Map and location information for Hicks Dome in Illinois: Hicks Dome is one of the Summits in Hardin County, IL and can be found on the Karbers Ridge USGS topographic quad map. Brown, J.A. Bastin, E.S., 1931, The fluorspar deposits of Hardin and Pope Counties, Illinois: Illinois Geological Survey, Bulletin 58, 116 p. Baxter, J.W., G.A. of fluorite, apatite, and metal sulfides (Brown et al. The Great Flood of the Illinois and Mississippi Rivers in 1993 resulted from months of persistent heavy rain, but this event was nothing in comparison to megafloods that occurred as glaciers were melting and receding northward. however, for many people in such cases it is not cut and dried.
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