Geokansas - One method is based on magnitude—the amount of energy released at the earthquake source. The other is based on intensity—how much the ground shakes at a specific location. Although several scales have been developed over the years, the two commonly used today in the United States are the moment magnitude scale, which measures magnitude (M ...

 
4 Images. View Gallery. Tallgrass Prairie National Preserve is the only unit in the U.S. National Park System devoted to North America's tallgrass prairie ecosystem, which once covered 170 million acres from Kansas to Indiana and Canada to Texas. Less than 4 percent of the natural prairie remains today, most in the Kansas Flint Hills. . Myigdis login

The Kansas High Plains region is an area of vast flatlands and gently rolling plains. Topographic relief is largely restricted to streams and river valleys and is most notable in the Arikaree Breaks in the far northeast corner of the state, at Point of Rocks along the Cimarron River in the far southwest corner, and around Lake Scott State Park.The KGS's interactive Kansas oil and gas well and field map shows the location of all the named oil and gas fields in Kansas as well as the individual wells within the fields, such as oil and gas wells, dry holes, abandoned wells, and saltwater disposal wells used to store wastewater produced with oil and gas. Information available by clicking ...Kansas Geological Survey, 1930 Constant Ave., Lawrence, KS 66047-3724 phone 785-864-3965, Core Library 785-864-2098. Kansas Geologic Sample Repository,Kansas is defined by being a centrally located state. Flat expanses, badlands, rolling hills, cuestas, and canyons shape Kansas’ geography. Kansas is a …5 juil. 2023 ... Plans by a Spanish company to build a large solar farm around the historic Cheyenne Bottoms in central Kansas have run into some opposition.Clinton spillway. The dam for Clinton Lake was constructed on the Wakarusa River in the late 1970s, and the spillway was carved out below the dam to hold excess water to prevent flooding if the lake's water level exceeded its capacity. The spillway provides a rare vertical view of a sequence of rock layers that stacked one on top of the other ...How rocks are named. In the same way that biologists use categories to identify animals and plants, geologists have created categories such as formations, groups, and members to distinguish one rock layer from another. Clockwise, from top left: chert outcrop, Flint Hills; brachiopods commonly found in Kansas rocks; Cottonwood Limestone fence ...Silvisaurus was a plant-eating dinosaur with hard-plate body armor. It belongs to a family of herbivore, armored dinosaurs known as nodosaurs. The only dinosaur identified as a silvisaurus, so far, was found in Ottawa County, Kansas, in 1960.The only known specimen of Silvisaurus was found not in marine rock, as other dinosaurs in Kansas were, but in …Post rock country is about 200 miles long, stretching diagonally southwest from near the Nebraska border in Washington County to just north of Dodge City in Ford County. East to west, it ranges from less than 10 miles to nearly 60 miles wide. Still dotted with the fence posts, the region also has many churches, barns, homes, bridges, businesses ...Vertebrate fossils—of gliding reptiles that dominated the sky, of sharks and swimming reptiles that ruled the sea, of dinosaurs and mammoths that roamed the land—are …2 Images. Aquifers are underground layers of porous and permeable rock or unconsolidated sediment, such as sand and gravel, that hold water. Porous means that rocks contain pores, or holes, and permeable means the pores are interconnected in a way that allows water to flow from pore to pore. Spaces containing water in sand and gravel or loosely ... Fossils in Kansas. Fossils specimens: Delocrinus, Acanthoceras, Meganeuropsis. Many Kansas rocks are full of fossils, the remains of plants or animals that have been preserved in rock. Through fossil finds, geologists and paleontologists piece together evidence of earlier life and landscapes on Earth.Vertebrate fossils—of gliding reptiles that dominated the sky, of sharks and swimming reptiles that ruled the sea, of dinosaurs and mammoths that roamed the land—are embedded in Kansas rocks and sediments. Some are common in specific locations. Others, such as dinosaurs, are rare. Several types of sharks and fish lived in the Pennsylvanian ...South-central Kansas—a mix of the Smoky Hills, Arkansas River Lowlands, Red Hills, High Plains, and Wellington-McPherson Lowlands physiographic regions—includes a transition zone between lush eastern prairie and the arid grasslands of the western prairie. Visit the salt marshes and wetlands that are vital stops for thousands of migrating ...Sandstone, a sedimentary rock, is formed when grains of sand are compacted and cemented together over thousands or millions of years. The sand grains often are composed of the minerals quartz or feldspar that were worn off other rocks and ground down into pebbles. Sandstone varies in color depending on the color of the sand grains it comprises ...Springs. A spring forms where groundwater flows out naturally from underground onto Earth’s surface or into a lake or river and runs fast enough to form a current. Often, the water flows from water-bearing rocks exposed on a hillside. Quality of water varies from spring to spring and may smell like rotten eggs, taste like salt, or be ...Loess is a finely ground silt that is deposited by the wind. In the High Plains of Kansas, loess was deposited by the wind during the Ice Ages of the past million years. This finely ground silt was formed as glaciers advanced over the continent, pulverizing rocks and sediments in their path. When the glaciers melted, this silt was deposited on ... Water in Kansas. In most years, precipitation in the form of rain, sleet, or snow is greatest in eastern Kansas and gradually declines toward the west. The wettest spot, on average, gets 45 inches per year and the driest less than 20 inches. As a result, eastern Kansas has more surface water — rivers, creeks, lakes, and wetlands.In 2013, a Wallace County sinkhole in far western Kansas appeared without warning and then grew to more than 200 feet across and 90 feet deep. The KGS determined that natural dissolution of underground halite (rock salt) likely caused the catastrophic collapse. During the dissolution process, groundwater seeped through fractures in layers of ...7 fév. 2011 ... Walt Disney began his career as a filmmaker in January of 1920 when he took a job making animated advertisements for the Kansas City Film Ad ...In October 2020, The U.S. Geological Survey, in cooperation with the Kansas Department of Health and Environment (KDHE), began long‐term in‐stream monitoring downstream from the headwaters of Soldier Creek, a KDHE identified basin with a high probability of large‐scale implementation (more than 50% of area) of soil health best management ...Best known for killing off the dinosaurs, the end- Cretaceous mass extinction also caused many other casualties. Ammonoids ( marine mollusks ), pterosaurs (gliding reptiles), mosasaurs (swimming reptiles), and a host of other plants and animals died out completely or suffered heavy losses. However, some that did survive the extinction ...Galena. Galena has metallic to lead-gray, cube-shaped crystals that break into cubic, right-angled fragments. It is an ore—a mineral of economic value—that was once mined in southeastern Kansas for its lead content. …Coronado Heights. Rising more than 300 feet above the Smoky Hill River valley, Coronado Heights is on the southern end of a four-mile chain of hills known as the Smoky Hill Buttes. North of Lindsborg, which is in northern McPherson County, Coronado Heights lies just across the line in Saline County. Capped by hard sandstones of the Dakota ... Of all the water on Earth, more than 96% is too salty to drink. Most of that is in the oceans. Surface water—in lakes, rivers, creeks, ponds, and playas and other wetlands—is our most visible source of freshwater, but it …Coronado Heights. Rising more than 300 feet above the Smoky Hill River valley, Coronado Heights is on the southern end of a four-mile chain of hills known as the Smoky Hill Buttes. North of Lindsborg, which is in northern McPherson County, Coronado Heights lies just across the line in Saline County. Capped by hard sandstones of the Dakota ...Learn more about earthquakes, sinkholes, landslides, and environmental issues facing Kansas today and the KGS role in addressing them. Discover Kansas’ rich geologic history, unusual and unexpected topography, and natural resource gems in every corner of the state. Maps, oil and water well drills, seismic sensors, and other geologic tools ... 4 Images. View Gallery. Tallgrass Prairie National Preserve is the only unit in the U.S. National Park System devoted to North America's tallgrass prairie ecosystem, which once covered 170 million acres from Kansas to Indiana and Canada to Texas. Less than 4 percent of the natural prairie remains today, most in the Kansas Flint Hills.Water in Kansas. In most years, precipitation in the form of rain, sleet, or snow is greatest in eastern Kansas and gradually declines toward the west. The wettest spot, on average, gets 45 inches per year and the driest less than 20 inches. As a result, eastern Kansas has more surface water — rivers, creeks, lakes, and wetlands.Galena. Galena has metallic to lead-gray, cube-shaped crystals that break into cubic, right-angled fragments. It is an ore—a mineral of economic value—that was once mined in southeastern Kansas for its lead content. …The Crawford sinkhole, which causes Interstate 70 to sag west of Russell, has been linked to an improperly plugged and abandoned oil well. Because the well was not adequately sealed, groundwater leaked along the well casing into the Hutchinson Salt Member about 1,300 feet below the surface. An underground void was created where the salt ...2 Images. Aquifers are underground layers of porous and permeable rock or unconsolidated sediment, such as sand and gravel, that hold water. Porous means that rocks contain pores, or holes, and permeable means the pores are interconnected in a way that allows water to flow from pore to pore. Spaces containing water in sand and gravel or loosely ...Vertebrate fossils—of gliding reptiles that dominated the sky, of sharks and swimming reptiles that ruled the sea, of dinosaurs and mammoths that roamed the land—are …How rocks are named. In the same way that biologists use categories to identify animals and plants, geologists have created categories such as formations, groups, and members to distinguish one rock layer from another. Clockwise, from top left: chert outcrop, Flint Hills; brachiopods commonly found in Kansas rocks; Cottonwood Limestone fence ...Shark. Among the first vertebrates to develop jaws and teeth, sharks have been around for at least 400 million years. Sharks shed and regrow teeth throughout their lives, so countless teeth were shed in seas that covered parts or all of Kansas off and on over hundreds of millions of years. The Cretaceous rocks of western Kansas are an ...Rock City. Huge sandstone spheres ranging up to 20 feet in diameter cover an area roughly the size of two football fields at Rock City, about four miles south of Minneapolis in Ottawa County. Known as concretions, the spheres weathered out of a sandstone layer in the Dakota Formation. The sandstone was formed mainly from sand deposited along ...The Glaciated Region in northeastern Kansas was invaded by at least two of the eight or nine glaciers that ground their way down into the northern United States during the Pleistocene Epoch, between 2.6 million and 11,700 years ago. The first ice sheet to make it to Kansas covered just the far northeastern corner of the state before retreating ... Fossils, Paleontology, and Geoarchaeology. Kansas rocks are full of fossils, the remains of plants or animals that have been preserved in rock. Through fossil finds, geologists and paleontologists piece together evidence of earlier life and landscapes on Earth. Sep 22, 2023 · Kansas Geological Survey, 1930 Constant Ave., Lawrence, KS 66047-3724 phone 785-864-3965, Core Library 785-864-2098. Kansas Geologic Sample Repository, Most sinkholes in central Kansas, whether natural or related to human activities, are the result of dissolution of halite (rock salt) by groundwater in the Hutchinson Salt Member. That thick salt bed—about 350 feet thick and 400 feet deep in the Hutchinson area—formed from deposits of salt and other sediment left behind when a shallow sea covering the area receded about 252 million years ...Fossils in Kansas. Fossils specimens: Delocrinus, Acanthoceras, Meganeuropsis. Many Kansas rocks are full of fossils, the remains of plants or animals that have been …Frontispiece from The University Geological Survey of Kansas volume IV, on paleontology (1898), dramatically depicting Cretaceous animals. Geologic exploration and observation in Kansas spans centuries, from Francisco Vasquez de Coronado's ill-fated search for gold in 1541 to Lewis and Clark's expedition in 1804 to the current research endeavors of the …The U.S. Public Land Survey System (PLSS) was established shortly after the Revolutionary War as a way to describe and record parcels of land for legal purposes.Kimberlite is one of only two igneous rocks found at the surface in Kansas. Extremely rare in the state, igneous rocks form from hot molten magma that pushes up toward the surface from Earth's interior then cools. The magma may cool and harden before reaching the surface or erupt onto the surface. Kimberlite forms in vertical structures in the ...The Flint Hills were formed by the erosion of Permian-age limestones and shales. During the early part of the Permian Period (about 299 to 252 million years ago), shallow seas covered much of the state, as they did earlier in the Pennsylvanian subperiod. Unlike the Pennsylvanian limestones found at the surface to the east, many of the ... GeoKansas. GeoKansas, hosted by the Kansas Geological Survey, is a comprehensive site that describes the geology of the state of Kansas. This site contains a very useful guide to Kansas fossils. Oceans of Kansas. Oceans of Kansas is a site devoted to fossils of Kansas and fossils from the late Cretaceous western interior sea. Shale is a soft, brittle, fine-grained, and easily eroded sedimentary rock formed from mineral-rich silt, or mud, that was deposited in an aquatic environment, buried by other sediment, and compacted and cemented into hard rock. When exposed at the surface by erosion, shale weathers into thin layers called plates.Ozark Plateau. The Ozark Plateau region is the smallest in Kansas, covering just 55 square miles in the southeastern tip of Cherokee County and the state. It is, however, part of the much larger regional Ozark Plateau that extends tens of thousands of square miles into Missouri, Oklahoma, and Arkansas. In Kansas, the Ozark Plateau region is ...The relatively few terrestrial (land) fossils found in Kansas include insects that lived in swampy areas. Some of the most common invertebrates are. ammonoids (squidlike creatures that lived inside a shell) brachiopods (marine animals that secrete a shell consisting of two parts called valves) bryozoans (small animals that live exclusively in ...GeoKansas. GeoKansas, hosted by the Kansas Geological Survey, is a comprehensive site that describes the geology of the state of Kansas. This site contains a very useful guide to Kansas fossils. Oceans of Kansas. Oceans of Kansas is a site devoted to fossils of Kansas and fossils from the late Cretaceous western interior sea.The Flint Hills were formed by the erosion of Permian-age limestones and shales. During the early part of the Permian Period (about 299 to 252 million years ago), shallow seas covered much of the state, as they did earlier in the Pennsylvanian subperiod. Unlike the Pennsylvanian limestones found at the surface to the east, many of the ...Clams and their relatives (oysters, scallops, and mussels) are often called bivalves (or bivalved mollusks) because their shell is composed of two parts called valves. Bivalves have a long history. Their fossils first appear in rocks that date to the middle of the Cambrian Period, about 510 million years ago.Like their relatives—starfishes, sea urchins, sea cucumbers, and brittle stars—crinoids are echinoderms, animals with rough, spiny surfaces and a special kind of radial symmetry based on five or multiples of five. Crinoids have lived in the world's oceans since at least the beginning of the Ordovician Period, roughly 485 million years ago.The Kansas Geological Survey (KGS), a research and service division of the University of Kansas, is charged by statute [1] with studying and providing information on the geologic resources of Kansas. The KGS has no …The Kansas High Plains region is an area of vast flatlands and gently rolling plains. Topographic relief is largely restricted to streams and river valleys and is most notable in the Arikaree Breaks in the far northeast corner of the state, at Point of Rocks along the Cimarron River in the far southwest corner, and around Lake Scott State Park.Shale is the main component of the Wellington Formation, which underlies the Arkansas River Lowlands east of Hutchinson. Up to 700 feet thick, the Wellington is composed of mostly shale, with interspersed layers of salt, limestone, siltstone, and anhydrite. It was deposited early in the Permian Period, about 275 million years ago.Learn more about earthquakes, sinkholes, landslides, and environmental issues facing Kansas today and the KGS role in addressing them. Discover Kansas’ rich geologic …Explore Southwest Kansas. The High Plains of southwest Kansas, bisected by part of the Arkansas River Lowlands, are known for farmland and feedlots. But geologic sites of interest include two large sinkholes, a high outcrop once important to travelers on the Santa Fe Trail's Cimarron Cutoff because it signaled water was nearby, and an area once ...Coal mining. Coal shovel. Coal was likely mined from a hillside near Fort Leavenworth in northeastern Kansas as early as 1827, the year the fort was established. By the late 1850s, Missourians were mining coal for use by blacksmiths near what is now Weir, in southeastern Kansas. Just before and after the Civil War, coal production became ... The second route — the Gyp Hills Scenic Drive — is a 22-mile loop through the heart of the Red Hills region in Barber County. Starting three miles west of Medicine Lodge at the junction of Highway 160 and Gyp Hills Road, the route runs south on Gyp Hills Road, turns west on Scenic Drive, and heads back north toward the highway on Lake City ... Another catastrophic collapse—known as the Cargill sinkhole because of its proximity to the Cargill Salt company—left railroad tracks dangling precariously in midair and grew to 200 feet in diameter in just 14 hours in 1974. Three weeks later, the diameter stabilized at 300 feet. The KGS uses seismic reflection techniques to study sinkholes.Vertebrate fossils—of gliding reptiles that dominated the sky, of sharks and swimming reptiles that ruled the sea, of dinosaurs and mammoths that roamed the land—are embedded in Kansas rocks and sediments. Some are common in specific locations. Others, such as dinosaurs, are rare. Several types of sharks and fish lived in the Pennsylvanian ...The Smoky Hills region in north-central Kansas encompasses a range of hills composed largely of sandstone, a second composed largely of limestone, and a third composed largely of chalk. Although visibly …Color elevation map of Kansas. The elevation in Kansas rises gradually from east to west. The lowest point, at 679 feet above sea level, is where the Verdigris River exits the state into Oklahoma just south of Coffeyville in Montgomery County. The highest point, at 4,039 feet above sea level, is on the Colorado border in Wallace County.In 2013, a Wallace County sinkhole in far western Kansas appeared without warning and then grew to more than 200 feet across and 90 feet deep. The KGS determined that natural dissolution of underground halite (rock salt) likely caused the catastrophic collapse. During the dissolution process, groundwater seeped through fractures in layers of ...In 2021, Kansas City, MO-KS had a population of 2.18M people with a median age of 37.6 and a median household income of $73299. Between 2020 and 2021 the ...Sphalerite is an ore—a mineral of economic value—that was once mined in southeastern Kansas for its zinc content. It is also called zinc blende, blende, blackjack, and mock lead. Sphalerite crystals are usually shaped like triangular pyramids, with three sides and a base. Because it has good cleavage in six directions, sphalerite will break ...Fossils in Kansas. Fossils specimens: Delocrinus, Acanthoceras, Meganeuropsis. Many Kansas rocks are full of fossils, the remains of plants or animals that have been …Kansas is defined by being a centrally located state. Flat expanses, badlands, rolling hills, cuestas, and canyons shape Kansas’ geography. Kansas is a state of wheat farms, ranching, and wind turbines. From military installations to airplane manufacturing, geography has shaped and continues to shape Kansas.cross-bedding. fossils of bivalves, gastropods, mollusks, and other marine animals. Kanopolis was the first state park in Kansas. In 1948, a dam was completed across the Smoky Hill River to contain the water within surrounding ravines and canyons. The park has more than 30 miles of scenic trails for hiking, mountain biking, and horseback riding.The U.S. Public Land Survey System (PLSS) was established shortly after the Revolutionary War as a way to describe and record parcels of land for legal purposes.A fine- to coarse-grained rock, dolomite is generally gray or light in color in its unweathered state. It weathers to a buff or tan color when exposed to the elements. Dolomite is used in much the same way as limestone, including as building material and a component of cement. Dolomite is found mainly in central and southern Kansas. The Stone ...Kansas Geological Survey, 1930 Constant Ave., Lawrence, KS 66047-3724 phone 785-864-3965, Core Library 785-864-2098. Kansas Geologic Sample Repository,The Kansas High Plains region is an area of vast flatlands and gently rolling plains. Topographic relief is largely restricted to streams and river valleys and is most notable in the Arikaree Breaks in the far northeast corner of the state, at Point of Rocks along the Cimarron River in the far southwest corner, and around Lake Scott State Park.At least 3,500 living species and 15,000 fossil species are known. Bryozoans are small animals (just large enough to be seen with the naked eye) that live exclusively in colonies. In fact, the Phylum Bryozoa is the only animal phylum in which all known species form colonies. The name comes from two Greek words, bryon (moss) and zoon (animal ... Coronado Heights. Rising more than 300 feet above the Smoky Hill River valley, Coronado Heights is on the southern end of a four-mile chain of hills known as the Smoky Hill Buttes. North of Lindsborg, which is in northern McPherson County, Coronado Heights lies just across the line in Saline County. Capped by hard sandstones of the Dakota ... Springs. A spring forms where groundwater flows out naturally from underground onto Earth’s surface or into a lake or river and runs fast enough to form a current. Often, the water flows from water-bearing rocks exposed on a hillside. Quality of water varies from spring to spring and may smell like rotten eggs, taste like salt, or be ...Clams and their relatives (oysters, scallops, and mussels) are often called bivalves (or bivalved mollusks) because their shell is composed of two parts called valves. Bivalves have a long history. Their fossils first appear in rocks that date to the middle of the Cambrian Period, about 510 million years ago.Fossils in Kansas. Fossils specimens: Delocrinus, Acanthoceras, Meganeuropsis. Many Kansas rocks are full of fossils, the remains of plants or animals that have been preserved in rock. Through fossil finds, geologists and paleontologists piece together evidence of earlier life and landscapes on Earth.21 mai 2011 ... 318 GEOLOGICAL SURVEY OF THE TERRITORIES. ON THE GEOLOGY AND PALEONTOLOGY OF. THE CRETACEOUS STRATA OF KANSAS. By EDWARD D. COPE, A. M..Vertebrate fossils—of gliding reptiles that dominated the sky, of sharks and swimming reptiles that ruled the sea, of dinosaurs and mammoths that roamed the land—are embedded in Kansas rocks and sediments. Some are common in specific locations. Others, such as dinosaurs, are rare. Several types of sharks and fish lived in the Pennsylvanian ...At least 3,500 living species and 15,000 fossil species are known. Bryozoans are small animals (just large enough to be seen with the naked eye) that live exclusively in colonies. In fact, the Phylum Bryozoa is the only animal phylum in which all known species form colonies. The name comes from two Greek words, bryon (moss) and zoon (animal ... The Flint Hills Scenic Byway stretches 48 miles along Kansas Highway 177 from Cassoday in northeastern Butler County to Council Grove in Morris County. Besides providing a view of prime Flint Hills and tallgrass prairie scenery, the route takes you to Cottonwood Falls, home of the Chase County Courthouse, and the Tallgrass Prairie National ...Before the surrounding area was settled, Cheyenne Bottoms was an intermittent marshland in a 64-square-mile basin. In the 1950s, the state of Kansas began developing it into a more permanent and stable wetlands and wildlife area. Dikes now divide the marsh into a series of pools, and water is diverted between pools to maintain suitable habitat.Covering much of Clark, Barber, and Comanche counties, the Red Hills, sometimes called the Gyp Hills, also spill over into adjacent counties in Kansas and Oklahoma. Although gypsum in the Red Hills is more resistant to weathering than the other rocks and sediments, it is an evaporite left behind as the seas dried up and, thus, soluble in water.How rocks are named. In the same way that biologists use categories to identify animals and plants, geologists have created categories such as formations, groups, and members to distinguish one rock layer from another. Clockwise, from top left: chert outcrop, Flint Hills; brachiopods commonly found in Kansas rocks; Cottonwood Limestone fence ...Kansas DRG Maps. View the entire list of USGS Kansas Digital Raster Graphic Maps.Geologic maps. Geologic maps depict bedrock—the solid rock at the earth's surface or directly beneath the vegetation, soil, and thin deposits of unconsolidated material collectively called "cover." Limestone, sandstone, and shale are common types of bedrock in Kansas. Portion of Tallgrass Prairie National Preserve geologic map.A fine- to coarse-grained rock, dolomite is generally gray or light in color in its unweathered state. It weathers to a buff or tan color when exposed to the elements. Dolomite is used in much the same way as limestone, including as building material and a component of cement. Dolomite is found mainly in central and southern Kansas. The Stone ...Bryozoans are some of the most abundant fossils in the world. They are also widespread today, both in marine and freshwater environments, living at all latitudes and at depths ranging downward to at least 27,900 feet (8,500 meters). Marine bryozoans show up in the fossil record in the early part of the Ordovician Period, about 485 million years ...

When linked to human activities, it is referred to as "induced seismicity." Oil and gas operations, mining activities, geothermal energy production, construction, underground nuclear testing, and impoundment of large reservoirs can all be sources of induced seismicity. Beginning in 2013, Kansas saw an unusual increase in earthquake activity in .... Dakota prefinished shiplap

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Of all the water on Earth, more than 96% is too salty to drink. Most of that is in the oceans. Surface water—in lakes, rivers, creeks, ponds, and playas and other wetlands—is our most visible source of freshwater, but it makes up just one-fifteenth of the 1 percent of useable freshwater on Earth. The rest is tied up in frozen glaciers or is groundwater—stored in …Oolite. Oolite is a type of sedimentary rock, usually limestone , made up of ooids cemented together. An ooid is a small spherical grain that forms when a particle of sand or other nucleus is coated with concentric layers of calcite or other minerals. Ooids most often form in shallow, wave-agitated marine water. Just as oolitic limestones form ... A fine- to coarse-grained rock, dolomite is generally gray or light in color in its unweathered state. It weathers to a buff or tan color when exposed to the elements. Dolomite is used in much the same way as limestone, including as building material and a component of cement. Dolomite is found mainly in central and southern Kansas. The Stone ...Kansas Geological Survey, 1930 Constant Ave., Lawrence, KS 66047-3724 phone 785-864-3965, Core Library 785-864-2098. Kansas Geologic Sample Repository,When linked to human activities, it is referred to as "induced seismicity." Oil and gas operations, mining activities, geothermal energy production, construction, underground nuclear testing, and impoundment of large reservoirs can all be sources of induced seismicity. Beginning in 2013, Kansas saw an unusual increase in earthquake activity in ...The largest Kansas earthquake in recent years was a M 4.9 event in 2014 that was thought to have been caused by induced seismicity. The epicenter was in Sumner County near Milan, where some buildings suffered minor damage. At least 31 felt earthquakes in Kansas were documented in newspaper accounts and other sources between 1867 and 1976.Clams and their relatives (oysters, scallops, and mussels) are often called bivalves (or bivalved mollusks) because their shell is composed of two parts called valves. Bivalves have a long history. Their fossils first appear in rocks that date to the middle of the Cambrian Period, about 510 million years ago. Vertebrate fossils—of gliding reptiles that dominated the sky, of sharks and swimming reptiles that ruled the sea, of dinosaurs and mammoths that roamed the land—are embedded in Kansas rocks and sediments. Some are common in specific locations. Others, such as dinosaurs, are rare. Several types of sharks and fish lived in the Pennsylvanian ... More than 450,000 wells related to oil and gas production have been drilled in Kansas. The KGS's interactive Kansas oil and gas well and field map shows the location of all the named oil and gas fields in Kansas as well as the individual wells within the fields, such as oil and gas wells, dry holes, abandoned wells, and saltwater disposal wells used to store wastewater produced with oil and gas. Fossils of the large, swimming reptiles called mosasaurs are common in western Kansas chalk beds, which were deposited in Cretaceous seas. Although mosasaur species varied in length, some grew to be more than 50 feet long. The longest one found in Kansas was about 40 feet long. Mosasaurs had long bodies, sharp teeth, and paddle-like limbs.Vertebrate fossils—of gliding reptiles that dominated the sky, of sharks and swimming reptiles that ruled the sea, of dinosaurs and mammoths that roamed the land—are …The Kansas High Plains region is an area of vast flatlands and gently rolling plains. Topographic relief is largely restricted to streams and river valleys and is most notable in the Arikaree Breaks in the far northeast corner of the state, at Point of Rocks along the Cimarron River in the far southwest corner, and around Lake Scott State Park.A river basin encompasses two or more watersheds. The main stream draining each watershed runs toward the major river within a river basin. In the Upper Arkansas River basin, streams and runoff from the Pawnee Valley and other watersheds flow into the Arkansas River. Kansas is covered by 12 river basins that also extend into surrounding …Geography of Kansas. The U.S. state of Kansas is bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. The state is …Explore Northeast Kansas. Northeast Kansas encompasses the Glaciated physiographic region in the north and part of the Osage Cuestas along its southern edge. At sites in this area, you'll find massive quartzite boulders transported from northern states by glaciers, a water stop vital to travelers on the Oregon Trail, scenic drives, and ...The Kansas Department of Wildlife, Parks and Tourism now manages 14,500 acres of unreclaimed land and lakes in southeast Kansas as the Mined Land Wildlife Area. The area includes rugged hills created by strip mining and more than 1,000 lakes that developed in unreclaimed ditches. Gob piles, the piles of discarded coal waste and fractured rock ... How rocks are named. In the same way that biologists use categories to identify animals and plants, geologists have created categories such as formations, groups, and members to distinguish one rock layer from another. Clockwise, from top left: chert outcrop, Flint Hills; brachiopods commonly found in Kansas rocks; Cottonwood Limestone fence ...Most sinkholes in central Kansas, whether natural or related to human activities, are the result of dissolution of halite (rock salt) by groundwater in the Hutchinson Salt Member. That thick salt bed—about 350 feet thick and 400 feet deep in the Hutchinson area—formed from deposits of salt and other sediment left behind when a shallow sea covering the area receded about 252 million years ...The boulders and pebbles from local and distant rocks that were carried by glaciers are of many different types, including limestone, sandstone, quartzite, granite, and basalt. Rocks that have been transported into an area from far away are called erratics. Among the glacial erratics in northeastern Kansas, quartzite is one of the most common.The Crawford sinkhole, which causes Interstate 70 to sag west of Russell, has been linked to an improperly plugged and abandoned oil well. Because the well was not adequately sealed, groundwater leaked along the well casing into the Hutchinson Salt Member about 1,300 feet below the surface. An underground void was created where the salt ...One of the most common rocks in Kansas, limestone is a sedimentary rock composed mainly of the mineral calcite, which is a calcium carbonate. Most limestone layers formed from marine sediment deposited on sea floors, although some formed in freshwater lakes and rivers and even on dry land. Sources for the calcite in limestone include seashells..

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