TRACE, R.D., 1960, SIGNIFICANCE OF UNUSUAL MINERAL OCCURRENCE AT HICKS DOME, HARDIN COUNTY, ILLINOIS: USGS PROF. PAPER 400B P. B63 - B64. No. Devonian chert and limestone form a hill at the center. The dome has small associated igneous dikes around its flanks. known as US Topo Maps. Development work by the Big Creek Fluorspar Company and A.B. Hicks Dome is approximately 10 Explosion pipe in test well on Hicks Dome, Hardin County, Illinois. This is much deeper than previously known in such amounts in the area. 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. outward. 6873). Brown, J.A. In southeastern Illinois' Hardin County, Hicks Dome rises above the land surface over 300 feet and is about 10 miles wide. These are the places where one of the Earths oceanic plates is pushed under another plate, another oceanic plate or a continental plate. trending mineralized block faults that cross Hicks Dome to explosive, alkaline igneous activity at depth. Trought, 1940, Fluorspar and cryolite. Coppa, and B.V. Clingan, 1979, Principal thorium resources in the United States: U.S. Geological Survey, Circular 805, 42 p. Weller, J.M., R.M. 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 Reelfoot Rift and Rough Creek Graben are thought to have formed 750 million years ago during the Precambrian. Baxter, 1992, provides more details and can be purchased from ISGS for $5.00. While many volcanoes are like this, others are not. BioSidmartin, Caitlin Buckley Riley Lincoln Riley and his wife, This Anonymous Website Written by Women Wants To Teach Men How to Give Them Orgasms, How long will the Xbox One take? higher than 79% of other locations on record. Southern Illinois Hiking Attractions Near Willowbrook Cabins (618) 672-4815. Nuelle The site was first discovered in 1952 by Saint Joseph Lead Company. 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. Hiking in the Shawnee National Forest - Features the most popular hikes and trails to explore in Southern Illinois. Antrim. 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. It formed during the Permian, about 270 million years ago. The USGS (U.S. Geological Survey) publishes a set of topographic maps of the U.S. commonly Middle Devonian rocks at the center are surrounded concentrically by younger rocks out to Pennsylvanian on the rim. 1952, Brown et al. Hardin County Trails (4). The dome has small associated igneous dikes around its flanks. Hicks Dome in Hardin County Illinois. Richard C. Berg, Director 217-333-4747 My exploration and documentation of craters (presently only on this planet). Hicks Dome, a cryptovolcanic feature in the northwestern 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. 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. 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. OK. 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. official weather station. Ore mineralization has been found at this location, however the precise grade, tonnage, and extent of the mineralization are not known. The Hicks Dome, a Permian crypto-volcanic feature (?) Davis, H.W. If so, we ask that you post a quick review of it below. Tippie, 1952, Geology of the fluorspar deposits of Illinois: Illinois State Geological Survey, Bulletin 76, 147 p. This page was last edited on September 16, 2021, at 15:41. Hicks Dome: Pilots flying over this hill were amazed to see the shape of a volcano from the air. S. Weller et al. Sources/Usage Image courtesy of L.M. Hicks Dome, which is located in Hardin County, Illinois, has been an enigma for many years. intended to be printed at 22.75"x29" or larger. Lava comes from a fissure in the Leilani Estates subdivision on Hawaiis Big Island on May 4, 2018. Dome apparently developed during its formation. List of volcanoes in the United States A list of volcanoes in the United States and its territories. Highly brecciated rock crops out near Almost a Volcano: The Geology of Hicks Dome Thursday, Dec. 10, 2015 216 East Monroe St (alley) Carbondale, Illinois Entrance and parking in rear, off Marion and Monroe Streets, across from Rockhill Baptist Church Presenter Brett Denny is an Economic Geologist with the Illinois State Geological Survey. Most geologists concur with Bradbury and Baxter (1992) that the dome is the product of large-scale igneous intrusion and brecciation at depth. Some volcanoes are located near the subduction zones. 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. What is the most dangerous volcano in the United States? Also, ultramafic igneous dikes, breccias, and diatremes are present near the center of Hicks Dome (Bradbury and Baxter, 1992). 1-16-11 DREAM: i was living in southern Wisconsin, and my mother-in-law came to visit our family. 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). Although their findings are highly speculative, Staatz et al. 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. 1954). McGinnis and Bradbury (1964) showed no magnetic high at Hicks Dome: shatter breccias, vent breccias, and carbonatitic Intrusive Breccias at Hicks Dome, Hardin County, Illinois. Clicking anywhere within a quandrant will display an info window with the map name, as Bradbury and Baxter (1992) described three types of breccias 2 hole was drilled to 2,485 feet, and the core was composed of breccia cemented by white calcite, with sparse fluorite in the upper portion, but fluorite averaged between 2% and 8% from 2,000 to 2,240 feet. 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. Where are dormant Illinois volcanoes? This location's average winter low temps are 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 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. Map all coordinates using: OpenStreetMap Download coordinates as: KML Contents 1 Alaska 2 American Samoa 3 Arizona 4 California 5 Colorado 6 Hawaii 7 Idaho 8 Illinois 9 Louisiana 10 Michigan 11 Mississippi 12 Missouri 13 Nevada 14 New Hampshire The dome is about 10 miles in diameter. The region of Hicks Dome is rich in fluorite and other minerals. If you witnessed a crime, you may be afraid that someone will retaliate against you for reporting it to the police. It was operated by W.M. Rotary drill cuttings from this Rohrer (Weller et al. (Source: ISGS publication Geology of Illinois). This is interpreted as one of the explosion type breccias, or diatremes, common in this Illinois-Kentucky area, as well as in nearby Missouri. and Baxter attributed Hicks Dome and its associated breccias Geologists working on the deposit designated the breccia as either complex breccia or host breccia. An official website of the United States government. Share sensitive information only on official, secure websites. 1954). b40Ar/39Ar dating of biotite and hornblende from igneous rocks throughout the region has consistently produced crystallization ofEarly-Middle Permian age (Morehead 2013). (10 km) northeast of the apex. rectangular quadrants that are printed at 22.75"x29" or This mine, which was abandoned before 1931, consisted of two pits no more than 20 feet deep and a shaft no more than 100 feet deep (Bastin 1931). 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. differences in elevation and topography, the historic weather at the two separate locations aThere is no field evidence to support a meteorite impact theory(Morehead 2013). Drilling into the core of Hicks Dome reveals greatly shattered sedimentary rocks, intermixed with igneous material. The Hicks Dome uplifted ~1200 meters, observed from the west. A correlation of formations between this and the earlier Fricker well is presented. Hicks Dome | U.S. Geological Survey Breadcrumb Images Photography Hicks Dome By Communications and Publishing Original Thumbnail Medium Detailed Description View of Hicks Dome, Hardin County, Illinois, looking East. Plutonic Rock Or, if the crime was committed by someone you know, you may want to protect them. churchite. Most volcanoes are located in the Ring of Fire. Have you been to Illinois's Hicks Dome before? IN THE BRECCIA ZONE, FLUORITE WAS 2 TO 5% AND ONE SAMPLE CONTAINED 12.8% CAF2. Save my name, email, and website in this browser for the next time I comment. are younger than the dome and ultramafic intrusions. The answer isIllinois! The feature resulting from a large meteorite impact is known as the Des Plaines Disturbance. Desborough, and E.W. (1955) reported small quantities of uranium in Its called the Craters of the Moon, and its a very low threat. But it is important to take into account the environment every time you light a fire. in Illinois, will also be discussed. Compare with the OMAHA DOME, DES PLAINES DISTURBANCE, site were radioactive and contained unusual concentrations Lemons, L.V. J.S. Middle Devonian chert and limestone form a hill at the center. 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). 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. Photos provided by Flickr are under the copyright of their owners. 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. The Hicks Dome is underlain by ultramafic igneous rocks and igneous diatremes or breccia pipes. It is associated with faults and fractured rock, and is accompanied by igneous rocks and mineral deposits. 8 P. 891 - 902. 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). 363, 12 P. 1960 GEOLMAP ILL. STATE GEOLOGICAL SURVEY, BAXTER ET AL, 1964 GEOPHYS ILL. STATE GEOLOGICAL SURVEY; AEROMAG. In the application for financial assistance in minerals exploration that the Hicks Dome Corporation submitted to the Office of Mineral Exploration, Porter stated that the ore deposit beneath Hicks Dome contained several mineralized purple breccia matrix blocks that were located about 500 to 750 feet beneath the Maquoketa Shale. Ore minerals. Its rocks are uplifted about 4,000 feet, with older rocks (Devonian) in the center, concentric rings of younger rocks (Pennsylvanian being the youngest), and many faults within. 7 PM Public is welcome! However, as time passes, it becomes difficult to investigate the crime, as witnesses may forget what happened, or the evidence may become contaminated. 1954, Clegg and Bradbury 1956, Heyl and Faults surround the dome concentrically with other northeast-trending faults crosscutting it. Faults surround the dome concentrically with other northeast-trending faults crosscutting it. Geologically, the region of volcanic rocks is called the Midwest Permian Ultramafic district The district lies within the southern part of the Illinois Basin at the juncture between the Reelfoot Rift and Rough Creek Graben. Utah Utah has four volcanic fields. The small radial and arcuate faults that surround Hicks While the general rule is as soon as possible, the law sets a time limit, called the statute of limitations, to manage how much time you have to report a crime before it is essentially forgiven.in the eyes of the law. 1 Oil Test Well and Other Prospects. 1967, Heyl et al.1965, Zartman et al. (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 sources include the United States Board on Geographic Names, National Weather Service, U.S. Census Bureau, NASA, and Google. Staatz, M.H., T.J. Armbrustmacher, J.C. Olson, I.K. higher than 54% of other locations on record. Publication series Name GSA Field Guides Keywords Fluorite Fluorspar Hicks Dome (Zartman et al. Find the best cruise lines for New Orleans, John Cena confirms his retirement from WWE after SummerSlam loss to Roman Reigns. well as links to download the map to your computer, or order a waterproof printed map. The northwest- Hamp No. identified (Brown et al. Free program, no charge Klauea Volcano on Hawaiis Big Island is the most dangerous volcano in the United States, according to the latest National Volcanic Threat Assessment from the United States Geological Survey (USGS). The possibility is suggested that this could have been picked up from the formerly overlying New Albany, or Chattanooga, shale (Brown 1954). however, for many people in such cases it is not cut and dried. topographic maps of the U.S. called US Topo that are separated into The Hicks Dome, a Permian crypto-volcanic feature (?) Hawaii owes its existence to volcanoes, of which there are five on the island. 3 was composed of brecciated limestone or crackled limestone cemented by 4-millimeter-thick bands of purple fluorite and calcite, with the percentage of fluorite increasing at 2,000 feet. info@isgs.illinois.edu, 2023 University of Illinois Board of Trustees. It is suggested that Hicks Dome is an incipient or uncompleted cryptovolcanic structure.Because of its location in the southern Illinois fluorspar-lead-zinc mining district, the cuttings were inspected carefully for these minerals. 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 possibility is suggested that this could have been picked up from the formerly overlying New Albany, or Chattanooga, shale (Brown 1954). Alaska. in Illinois, will also be discussed. Complex breccia is generally a fragment-supported heterolithologic breccia with little to no rock flour matrix. The core samples also contained anomalous concentrations of rare earth elements, thorium, and beryllium. Drilling into the core of Hicks Dome reveals greatly shattered sedimentary rocks, intermixed with igneous material. Terms of use Because the nearest station and this geographic feature may have differences in elevation and topography, the historic weather at the two separate locations may be different as well. - Answers Illinois State Geological Survey Formation of Hicks Dome . Washington. Surrounding The volcanic field is a huge biome, which is not always harsh and destructive. 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). Middle Devonian rocks at the center are surrounded concentrically by younger rocks out to Pennsylvanian on the rim. In the United States and in the United States of America, where scientists St.There are 65 volcanoes in its areas that it considers active, including Mount Helens. Anderson, 2017, Geochemical and petrographic analysis of the Sparks Hill Diatreme and its relationship to the Illinois-Kentucky Fluorspar District: Illinois State Geological Survey, Circular 588, 51 p. Pogue, J.E., 1918, Optical fluorite in southern Illinois: State of Illinois Department of Registration and Education, State Geological Survey Division, University of Illinois, Bulletin 38, p. 424. 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. in Illinois, will also be discussed. BROWN, J.S., EMERY, J.A., AND MEYER, P.A., JR., 1954, EXPLOSION PIPE IN TEST WELL ON HICKS DOME, HARDIN COUNTY, ILLINOIS: ECON. coinciding with the broad Tolu Arch that crosses the Fluorspar Hicks Dome Hicks Dome was created by a volcano nearly 150,000,000 years ago. Data were collected along east-west flight lines spaced 200 meters apart with north-south tie lines flown every 3,000 meters. 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. Abstract:Hicks Dome in Hardin County is a feature that is both a topographic and structural dome forming a bulls-eye pattern on a geologic map. in a test well drilled there. 1952). THORIUM PROBABLY ACCOUNTS FOR THE 0.029% EQUIVALENT URANIUM IN THE UPPER PART OF THE BRECCIA. Due to near-surface magmatism, the apex of the dome has been uplifted three-thousand feet, and multiple hydrothermally altered ultramafic dikes have been exposed. miles (16 km) in diameter and its total structural relief is For permissions information, contact the Illinois State Geological Survey. Most geologists accept the theory that the older rocks at the center of the uplift are a result of this deep-seated igneous activity. Ultramafic dikes, small stocks, and diatremes radiate from Baxter; Intrusive Breccias at Hicks Dome, Hardin County, Illinois, A technical report, ISGS Circular 550, , , 1992. Shafts 24 to 154 feet deep were driven to a vein that averaged 4 feet wide, but no commercial production is on record (Weller et al. Porter stated that the purple breccia is in the anticipated position of the Ordovician Plattin Limestone and that it probably extends into the underlying Joachim Dolomite. larger. 4. . Located southwest of Hicks Dome, this prospect comprises several surface pits that follow veins striking N 4047 E (Weller et al. weak Valmeyeran and Chesterian strata produce concentric Tell us the time of year, what your goal was, and how your trip went. The roughly circular dome has prominent topographic expression on aerial photos and satellite images. History of Longwall Coal Mining In Illinois, https://ilmineswiki.web.illinois.edu/index.php?title=Hicks_Dome&oldid=30875, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, Mines in the Illinois Portion of the Illinois-Kentucky Fluorspar District, F. Brett Denny, W. John Nelson, Jeremy R. Breeden, and Ross C. Lillie. 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 origin of Hicks Dome is clearly related to igneous 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. The map now contains brown squares outlining nearby US Topo Map quadrants. 41) and was also encountered Prominent elevation rising above the surrounding level of the Earth's surface; does not include pillars, ridges, or ranges. 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. District. The deepest exploration hole was more than 2,500 feet and the shallowest was 2,200 feet. Similar massive flooding also occurred about 4,000 years later. Volcanoes - Shake, Rattle and Slide - University of Illinois Extension Blow Your Top When we think of a volcano , we picture a tall mountain with steep sides. 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. Like most previous researchers, Bradbury 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). A lock () or https:// means youve safely connected to the .gov website. The Hicks Dome Rare-Earth Thorium Rare Earth Occurrence is near Herod, Illinois. Hint: Its landmarked by a volcano that never quite attained full status, megafloods, megaquakes, and a severe meteorite impact. Hicks Dome ( 37.53139N 88.36833W) is a geological feature in Hardin County. Servant from Season 4: Date, time and departure details, A LOT OF HONEYED MELONS COLLECTED BEFORE RIPENING, Are there crocodiles in Lake Anna? 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. Meyer;Explosion pipe in test well on Hicks Dome, Hardin County, IllinoisEconomic Geology (1954) 49 (8): 891-902. The massive glaciers, the meteorite impacts, the sagging Illinois basina lot has gone on in this seemingly serene, cow-studded, cornfield-carpeted land. 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. a maximum of about 20 (as much as 45 locally) about 1 mile fracturing at the juncture of the Reelfoot Rift and Rough Creek Graben provided pathways for mantle-derived magmas to intrude into the sedimentary column. The Santa Clara volcanic field in the southwest of the state is visible here. Secure .gov websites use HTTPS 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. 12201 Sunrise Valley Drive Reston, VA 20192, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Region 12: Pacific Islands (American Samoa, Hawaii, Guam, Commonwealth of the Northern Mariana Islands). 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 small steam shovel dug the pits to extract gravel spar (Bastin 1931). Rare earth element mines, deposits, and occurrences. This is much deeper than previously known in such amounts in the area. This phenomenon was responsible for the fluorspar, zinc, lead, and silver that is found in the area. 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. > Pyroclastic Rock Home; Cabins . 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. 252 13 Ma and 269 13 Ma (K-Ar, bio, mica peridotite) REE minerals. Mines in the Illinois Portion of the Illinois-Kentucky Fluorspar District. The volcano never broke the surface but created a crypto-volcanic implosion (a violent collapse inward). (Source: ISGS publication Geology of Illinois). Below are weather averages from 1971 to 2000 according to data gathered from the nearest The dome is about 10 miles in diameter. Bradbury et al. An aeromagnetic survey by The dome is about 10 miles in diameter, and rocks at its apex are uplifted 4,000 feet. 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. This location's average precipitation levels are Also, ultramafic igneous dikes, breccias, and diatremes are present near the center of Hicks Dome (Bradbury and Baxter, 1992). The roughly circular dome has prominent topographic Because the nearest station and this geographic feature may have Hicks Dome is a structural dome which has its central Devonian core displaced upward some 4,000 feet in relation to the surrounding strata. It has been interpreted as resulting from explosions beneath the surface and therefore is referred to as a cryptoexplosive or cryptovolcanic feature. Category: Summits, Hardin County Cliffs (2) bastnsite. the case of Omaha Dome. It's defined as the vertical distance between a peak and the lowest contour line surrounding that peak and no higher peak. Keywords: uorite, Hicks Dome, Mississippi Valley-type deposit, Illinois-Kentucky 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. were still in place; however, the survey did indicate a strong and M.E. Edit embedded media in the Files Tab and re-insert as needed. The geological forces that produced volcanoes in the eastern United States millions of years ago no longer exist. (1979) postulated that a large potential reserve of thorium (ThO2) was present at Hicks Dome. Historically the site has been associated with the Illinois-Kentucky Fluorspar Mining District which is now part of the Shawnee National Forest. 1967). 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. Is Hicks Dome a volcano? outcrop samples from the dome. There is evidence that Hicks Dome is volcanic in origin. Although it never broke the surface, it caused the area to . MC GINNIS, L.D., AND BRADBURY, J.C., 1964, AEROMAGNETIC STUDY OF THE HARDIN COUNTY AREA, ILLINOIS: ILL. STATE GEOLOGICAL SURVEY CIRC. Where am I? There are many craters documented on this site. > Mafic Intrusive Rock, Volcanic Rock (Aphanitic) The Rose Mine, located east of the apex of Hicks Dome, produced gravel spar and some bedding replacement ore. ). Middle Brownfield, M.R. Volcano Falls offers two separate miniature golf courses, for a total of 36-holes of golf! Hicks Dome is covered by in the structural evolution of the region. examples of inactive volcanoes are Mount Kilimanjaro, Mount Fuji in Tanzania, Africa and Japan. This page was last edited on 22 July 2021, at 16:20. (1.6 km) out from the apex and gradually diminish farther and GLASFORD STRUCTURE. magnetic high, interpreted as a mafic pluton, about 6 miles 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. Thanks for sharing your experience at Hicks Dome! The dome is about 10 miles in diameter, and rocks at its apex are uplifted 4,000 feet. breccias. Farther outward, alternating resistant and The Hicks Dome, a Permian crypto-volcanic feature (?) Freiburg, and W.H. This is interpreted as one of the explosion type breccias, or diatremes, common in this Illinois-Kentucky area, as well as in nearby Missouri. 1967). V. 49 NO. [4] Three very large seismic events shook the region; more than 200 moderate to large aftershocks also occurred. Ordering Information. much breccia, but no conclusively igneous rock was View of Hicks Dome, Hardin County, Illinois, looking East. Parallel with the fluorspar content and similarly diminishing downward is an abnormal radioactivity characterized by 0.029 percent eU in the upper part of the breccia zone. 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).
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