Limestone sandstone shale

the weight of water or overtopping earth, they can solidify into rocks like limestone, sandstone, and shale. Metamorphic Rocks When a rock becomes buried deep _____ by natural geological processes, conditions can arise that will _____ the rock’s chemistry, and turn it into a completely different kind of rock.

Limestone sandstone shale. Triassic dolomitic rocks from Slovakia Erosion of dolomite over weaker shale created the Niagara Escarpment Trilobite fossil preserved as an internal cast in Silurian dolomite from southwestern Ohio, USA Erosion of dolomitic rocks in Mourèze, Hérault, France. Dolomite (also known as dolomite rock, dolostone or dolomitic rock) is a sedimentary carbonate …

quartzose sandstone, and coarse- to fine-grained, lithic-feldspathic-quartzose gray-wacke with an argillaceous-ferruginous-calcareous matrix. Metamorphic rock ... (shale) or ms ls (limestone). All differentiated units should be assigned distinctive map symbols and should be described on the General Geologic Legend, Explanation,

Shale. Anthracite. Marble. Obsidian. Multiple Choice. Edit. Please save your changes before editing any questions. 30 seconds. ... Sandstone. Limestone. Conglomerate. Multiple Choice. Edit. Please save your changes before editing any questions. ... Shale. Limestone. Sandstone. Breccia. Multiple Choice. Edit. Please save your changes before editing any …Carlile Shale. Codell Sandstone Member. Blue Hill Shale Member. Fairport Chalk Member. Greenhorn Limestone. Pfeifer Shale Member. Fence-post limestone bed. ... Falls City Limestone. Onaga Shale. Hawxby Shale Member. Aspinwall Limestone Member. Towle Shale Member. Wabaunsee Group. Richardson Subgroup. Wood Siding Formation.We would like to show you a description here but the site won't allow us.Limestone, Sandstone, Shale: Large Resource Deposits: Lead, Lithium, Quartz ... Although it is sparse of life, this biome has a lot of materials from limestone, sandstone (only in Deep Sparse Reef), and shale outcrops, you can even find rubies on the walls of the Deep Sparse Reef. Along with that, there are also large resource …Wolsey shale is 368 feet thick; underlies Meagher limestone, and overlies Flathead quartzite. Upper half of unit is interbedded gray argillaceous limestone and greenish- and yellowish-gray calcareous mudstone and shale; lower half is greenish-gray and drab shale with some interbeds of sandstone and limestone; many beds micaceous, some glauconitic.

Assume that sandstone is composed only of grains of quartz, limestone only of grains of calcite, and shale of equal quantities of kaolinite and muscovite. For sandstone, limestone, and shale saturated with …Limestone and sandstone tend to have a similar composition, look, and feel. So, what's the exact difference between these two magnificent rocks?Sandstone and shale are two types of classic sedimentary rocks. Moreover, both these types of rocks are very common throughout the world. Difference Between …phyllite, sandstone, schist, shale: R3 ; Medium: strong: 25 -50 1 - 2 : Cannot be scraped or : peeled with a pocket : knife, specimen can be fractured with a single ... Crystalline Limestone to 2) (12 not equal to 3) Sparitic Limestones (10 not equal to 2) Micritic Limestones (9 not equal to 2) Dolomites (9 not equal to 3)Uppermost part of Dakota consists of interbedded sandstone and silty or sandy shale. Note color change at contact. B, Uppermost part of Dakota in sec. 25, T 22 S, R 22 W, Hodgeman County (Loc. 20). Note alternation of sandstone and shale beds above pick head. C, Graneros-Greenhorn contact (pick head) in sec. 35, T 12 S. R 14 W, Russell County ...It is mainly carbonaceous shale and siltstone, including beds of fine to medium grained quartz sandstone commonly about 15 m thick, rare conglomerate beds, fossiliferous limestone lenses up to 9 m thick and associated marl. The conglomerates consist of pebbles and cobbles of greywacke, chert, vein quartz and shale.1 day ago · -Sandstone -Gneiss -Conglomerate -Shale -Limestone -Marble -Obsidian and more. Study with Quizlet and memorize flashcards containing terms like ________ begins after sediment is buried. Pressure pushed clasts together and forces out excess water., Fluvial refers to:, Which of these rock types are clastic sedimentary rocks?

Three representative rock types (limestone, sandstone, and shale) and glauconite samples collected from Ewekoro Quarry, eastern Dahomey Basin in Nigeria were characterized using low field 2 MHz and 20 MHz Nuclear Magnetic Resonance (NMR) techniques. NMR T 2 relaxation time decay measurement was conducted on disc …Terms in this set (32) Nonconformity. Conglomerate sits atop a granite intrusion. Principle of Original Horizontality. Rock layers have been tilted or folded, are not lying flat. Disconformity. Sandstone outcrop os submerged underwater, then overlain by shale. Angular Conformity. Marine shale sits atop folded strata.a) the water is warm, fairly saline, and recharged by an affluent stream. b) pressurized groundwater rises from a deep, unsaturated aquifer. c) water rises above the top of the aquifer without any pumping. d) the well is horizontal and the water table is perched. c) water rises above the top of the aquifer without any pumping. Shale forms from muddy deposits that settle out in slow moving water, such as in deltas or along continental shelves. Sandstone forms from sandy deposits and limestone forms from deeper deposits. Shale is a mudrock—a classification of rocks that are composed mainly of silt-sized or clay-sized particles (both microscopic). The experiments could not be performed in sandstone due to rough surfaces and high porosity. The ROP values ranged between 58 and 66 ft/hr (mean 62.4 ±5.3 ft/hr) in shale and between 221.7 and 460.6 ft/hr (mean 328.5±71.5 ft/hr ft/hr) in limestone.

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Peat Rock Salt (halite) Sandstone Shale Siltstone. Basic Classification - Method of Origin. Clastic. Breccia Conglomerate Sandstone Shale Siltstone. Chemical. Chert Dolomite Gypsum Halite (rock salt) Limestone - micrite Limestone - oolitic Limestone - intraclastic Rock Salt (halite) Biochemical. Chalk Coal - bituminous Coal - anthracite Coquina ... This shift of the shoreline is reflected in the Tapeats Sandstone beach facies, Bright Angle Shale near-offshore mud facies, and Muav Limestone far-offshore facies. Marine organisms had plenty of time to evolve and adapt to their slowly changing environment; these changes are reflected in the biological facies, which show older life forms in ...Limestone, dolomite, shale, and sandstone form the surface rocks in northwestern Ohio, through central Ohio and along the Lake Erie shore. Economic Products. Crushed stone for construction and cement, and aglime (limestone & dolomite). Synfuels and natural gas (from shale, sandstone, limestone). Mississippian Period (359–318 mya) Geologic SettingIn most ledges the beds are considerably broken into an irregular coarse breccia, which in places carries much calcite in veins and geodes. The second and third members consist of alternations of limestone, sandstone, and sandy shale in beds ranging in thickness from 1 to 20 ft and presenting much local variation in character and succession.Most common rock fragments in sandstone are clasts of volcanic rock, volcanic glass, fine grained metamorphic rocks such as slate, phyllite, schist and quartzite. Sand size fragments of siltstone, shale, chert and chert nodules are also common. Clasts of limestone and other carbonate rocks are also found as rock fragments in sandstones.Bedded limestone, Sandstone, shale 6 Sandy loam 6 Sand and gravel 8 Sand and gravel with significant silt and clay 6 Shrinking and/or aggregated clay 7 Basalt 9 Sand and gravel 8 Peat 8 Karst limestone 10 Basalt 9 Sand 9 Karst limestone 10 Gravel 10 Thin or absent 10 Di erent authors [41,42] pointed out the DRASTIC results’ accuracy, …

Coal-measure gas refers to a set of coalbed methane, coal-measure shale gas (includes shale gas and certain coal-derived gas, abbreviated as shale gas), and tight sandstone gas that are linked ...sedimentary layers of sandstone, shale, and limestone that range in age from Cambrian to Devonian (570 to 345 Ma [millions of years ago]). These rocks originated as sand, mud, and lime sediment deposited in former seas and floodplains.During Ordovician time (approximately 450 Ma) and again during Pennsylvanian and Permian time …Common sedimentary rocks include sandstone, limestone, and shale. These rocks often start as sediments carried in rivers and deposited in lakes and oceans. When buried, the sediments lose water and become cemented to form rock. Tuffaceous sandstones contain volcanic ash. Clastic Sedimentary Rocks: a) the water is warm, fairly saline, and recharged by an affluent stream. b) pressurized groundwater rises from a deep, unsaturated aquifer. c) water rises above the top of the aquifer without any pumping. d) the well is horizontal and the water table is perched. c) water rises above the top of the aquifer without any pumping.Laser drilling technique was employed by using 12 kW Trumph Laser Cell 1005. CO 2 laser in continuous mode was used and smaller diameter holes were obtained. The specifications of the laser machine are as indicated in Table 1.The rock minerals such as limestone, sandstone and shale were used in the experimental studies and trepanning drilling technique was used for drilling holes in samples.Laser drilling technique was employed by using 12 kW Trumph Laser Cell 1005. CO 2 laser in continuous mode was used and smaller diameter holes were obtained. The specifications of the laser machine are as indicated in Table 1.The rock minerals such as limestone, sandstone and shale were used in the experimental studies and trepanning drilling technique was used for drilling holes in samples.The basic pattern recognition of sandstone/chert (density higher porosity than neutron), dolomite (neutron higher than density porosity) and limestone ( density and neutron porosities are similar) is valid for SHALE-FREE zones. Shales will have both a higher gamma-ray value and a neutron porosity greater than a density porosity.Dalwood Group and lower Shoalhaven Group: calcareous sandstone, conglomerate, shale, limestone, lava flows and tuff. Greta Coal Measures: sandstone, shale, conglomerate, coal seams; Maitland and Shoalhaven Groups: siltstone, sandstone, shale, conglomerate (with abundant volcanics - the Gerringong Volcanics on the south coast; and glacial ...In this study, over 750 data were used to characterize the sandstone, shale, and limestone rocks behavior. The compressive strength and tensile strength of the rocks investigated varied up to 200 ...

Shale, sandstone; Ashokan Formation-shale, sandstone. Bloomsburg Formation (Upper Silurian) at surface, covers 5 % of this area. ... Schoharie Formation-shale, limestone; Carlisle Center Siltstone; Esopus Shale. Honesdale Formation (Upper Devonian) at surface, covers 0.6 % of this area.

Examples include: breccia, conglomerate, sandstone, siltstone, and shale. Chemical sedimentary rocks form when dissolved materials preciptate from solution. Examples include: chert, some dolomites, flint, iron ore, limestones, and rock salt. Organic sedimentary rocks form from the accumulation of plant or animal debris.phyllite, sandstone, schist, shale: R3 ; Medium: strong: 25 -50 1 - 2 : Cannot be scraped or : ... Crystalline Limestone to 2) (12 not equal to 3) Sparitic Limestones ... 28 thg 6, 2019 ... ... sandstone, limestone, shale, etc with a hand lens? I'm more looking for what I should see using hand lens rather than "shale looks like ...Knowns: This rock is hard, silica rich, and smooth that has a variety of colors and conchoidal fracture. It is composed of amorphous silica or cryptocrystalline quartz Question: What is the name of this rock? Rock Names: Chert, Chalk, Coralline Limestone, Sandstone, Shale, Breccia, Conglomerate, Coquina Oolitic Limestone Sandstone Shale Chert Description. The Old Port Formation consists of limestone, sandstone, shale, and chert. Stratigraphic Setting. The Old Port Formation is divided into several members with …Includes: Irondequoit Limestone, Rockway Dolostone, Hickory Corners Limestone, Neahga Shale, and Kodak Sandstone. Walloomsac Formation (Upper Ordovician) at surface, covers < 0.1 % of this area. Same description as Hortonville Formation - Dark-gray siliceous shale and phyllite containing thin beds of bluish-gray argillaceous limestone …Aug 11, 2023 · "The two basic rocks found in the Mammoth Cave area are limestone and sandstone. Limestone is the "soft" rock (more water soluble) that is dissolved more easily by water. Sandstone and shale are ... In this study, over 750 data were used to characterize the sandstone, shale, and limestone rocks behavior. The compressive strength and tensile strength of the rocks investigated varied up to 200 ...

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Sandstone is also cheaper than concrete and cement in most cases, especially when locally available. Beyond that, sandstone is much easier to work with than limestone, concrete, or cement; it means you also pay less for labor costs. Overall, when it comes to the affordability of sandstone vs limestone, sandstone is a pretty clear winner.Simple water and/or baking soda will not be able to get the job done when cleaning limestone stains, you’ll need a bit more professional approach. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show...Shale is a fine-grained sedimentary rock that forms from the compaction of silt and clay-size mineral particles that we commonly call "mud." This composition places shale in a category of sedimentary rocks known as " …Nov 19, 2021 · Porous and layered sedimentary rocks like limestone, sandstone, shale, and conglomerate, and breccia can explode when heated. Extrusive igneous rocks (pumice, basalt, rhyolite, andesite, dacite) and foliated metamorphic rocks (slate) can explode if they contain water inside. River rocks can also explode. Shale forms from muddy deposits that settle out in slow moving water, such as in deltas or along continental shelves. Sandstone forms from sandy deposits and limestone forms from deeper deposits. Shale is a …shale, any of a group of fine-grained, laminated sedimentary rocks consisting of silt- and clay-sized particles.Shale is the most abundant of the sedimentary rocks, accounting for roughly 70 percent of this rock type in the crust of the Earth.. Shales are often found with layers of sandstone or limestone.They typically form in environments where muds, silts, and other sediments were deposited ...o Massive sandstone, shale, conglomerate. o Equivalent to Pulute Formation. Sagasa Melange. o Possible Oligocene. o Probably formed through tectonism. o Chaotic mixture of turbidite, pillow basalt, chert, quartzite. o Outcropping in the Ulugan Bay area. Balabac Formation. o Late Oligocene – Miocene.Jul 7, 2023 · In most ledges the beds are considerably broken into an irregular coarse breccia, which in places carries much calcite in veins and geodes. The second and third members consist of alternations of limestone, sandstone, and sandy shale in beds ranging in thickness from 1 to 20 ft and presenting much local variation in character and succession. ….

30 thg 1, 2018 ... ... sandstones of Old Red Sandstone facies occur toward the base. ... The upper part of the Lower Limestone Shale consists of greenish grey shale ...Sandstone is made of sand grains (0.05-2mm) cemented together. It is formed from sediment deposited by rivers, the sea, or by the wind, so there are many types of sandstone. Limestone & ChalkThe bedrock of the Longmenshan Mountains ranges from Precambrian to Cretaceous in age, consisting of basalt, granite, phyllite, dolomite, limestone, sandstone, shale, and other types of rocks (Chigira et al. 2010).Limestone and sandstone tend to have a similar composition, look, and feel. So, what's the exact difference between these two magnificent rocks?Since sandstone is a coarser material than shale or limestone, fossils found in them do not usually show as many details as fossils in shale and limestone. Sandstone rarely contains delicate fossils. Sandstone forms in a wide range of environments, including beaches, oceans, sand bars, dunes, rivers, deltas, deserts and …Limestone, rock made of the calcium carbonate mineral known as calcite, can form in a variety of depositional environments, from hot spring deposits in lakes to coral reefs in the tropical oceans.Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al 2 Si 2 O 5 4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. Shale is characterized by its tendency to split into thin layers less than one centimeter in thickness.Shale forms from muddy deposits that settle out in slow moving water, such as in deltas or along continental shelves. Sandstone forms from sandy deposits and limestone forms from deeper deposits. Shale is a … Limestone sandstone shale, The table below includes specific environments where various types of sediments are deposited and common rocks, structures, and fossils that aid in deducing the depositional environment from examining a sedimentary rock outcrop. Although this is not a complete list, it is a good introduction to depositional environments. Continental. …, The Clinton Group (or Formation) is a widely traceable, lower Silurian lithostratigraphic unit composed primarily of shale and mudstone, though it encompasses a heterogeneous assemblage of sedimentary rock types, including conglomerate, sandstone, limestone, dolomite, and ironstone. [4] In its designated type area in Clinton, Oneida County, New ... , Most limestone is formed by a chemical reaction in sea water. The reaction makes a lime mud which sinks to the bottom to for the limestone. Some limestones are formed from buried coral reefs. Related Rocks: Dolostone (doe'-low-stone) looks like limestone, but is composed of the mineral, dolomite. Powdered dolostone does not fizz with white vinegar. , Jul 19, 2023 · Sandstone is a sedimentary rock formed from sand-sized mineral particles, while shale is formed from clay or silt-sized particles. Sandstone has a coarser texture and is more porous than shale, with a fine, laminated texture. Shale is more prone to breaking along its layers due to its fine-grained composition, whereas sandstone is more ... , Question: Use the video below to answer each question. Knowns This rock is composed entirely of reef building organisms Cuestion. What is the name of this rock? Rock Names: Chert, Chalk, Coralline Limestone, Sandstone, Shale, Breccia, Conglomerate, Coquina Chalk Coralline Limestone Oolitic Limestone Chert, Limestone is made up of calcium carbonate (fizzes with acid). This may be shell fragments, mud, or small, round ooliths that form in tropical lagoons. Chalk is a soft white limestone made from the microscopic skeletons of marine plankton., The known useful mineral resources in Elk County include oil, gas, limestone, shale and clay, sandstone, and gravel. Ground water, another important mineral resource, is discussed in Part 3 of this report. Natural gas has been produced in the county since 1901 and oil since 1902 (Jewett, 1954, p. 202). Both hydrocarbons still are important ..., Peat Rock Salt (halite) Sandstone Shale Siltstone. Basic Classification - Method of Origin. Clastic. Breccia Conglomerate Sandstone Shale Siltstone. Chemical. Chert Dolomite Gypsum Halite (rock salt) Limestone - micrite Limestone - oolitic Limestone - intraclastic Rock Salt (halite) Biochemical. Chalk Coal - bituminous Coal - anthracite Coquina ... , Limestone, sandstone, shale, shaley sandstone. 5 8. 390. N Y. Limestone, sandstone, shale, shaley sandstone. 4 1. 391. N Y. Limestone, sandstone, igneous ..., The Shale oil/gas, for this reason, is referred sometimes as ‘tight oil/gas’ but the term can be misleading. Tight oil/gas refers to basically oil/gas occurring in conventional reservoirs such as sandstone, siltstone and carbonate formations which because of their very low permeability and porosity are called tight reservoirs., Limestone, sandstone, and shale are obtained from sedimentary rocks. A marble is obtained from metamorphic rock composed of recrystallized carbonate minerals. Hence Marble is different. Rocks are an aggregate of one or more minerals held together by chemical bonds. Feldspar and quartz are the most common minerals found in rocks., The basic cyclothem is initiated by Lowstand terrestrial deposits of gray shales and sandstones with local developments of coals, succeeded by a Transgressive systems tract limestone. Black shales occur in the Highstand condensed section and interpreted to reflect deposition in the deepest water under reducing conditions which preserve organic matter …, Fossil Geology. Fossils are found primarily in 3 types of sedimentary rock- shale, limestone, and sandstone. Shale is either mudstone or a mixture of ancient mud and clay found at the bottom of calm bodies of water like lakes, swamps, and shallow seas like the Western Interior Seaway. The shale splits easily into layers and within these layers ..., The Valley and Ridge Province is underlain by faulted and folded sedimentary layers of sandstone, shale, and limestone that range in age ... The shales and ..., The Paleocene Wangong Formation consisting of volcaniclastics, sandstone, shale and limestone is over 1046 meters thick. In the Eocene the Shuangji Formation formed mostly from volcanic particles in the form of tuff and tuffaceous sandstone. These beds are from 100 m to 3 km thick. In the Oligocene the Wuzhishan Formation or Wuchihshan …, Jul 7, 2023 · The upper 250+/- feet of red sandy shale, purplish and gray limestone with red chert, and reddish to buff calcareous sandstone of Pennsylvanian age, which have heretofore been included in Redwall limestone, are here transferred to overlying Supai formation. [This is present (ca. 1938) adopted definition of Redwall limestone.] , Fossil Geology. Fossils are found primarily in 3 types of sedimentary rock- shale, limestone, and sandstone. Shale is either mudstone or a mixture of ancient mud and clay found at the bottom of calm bodies of water like lakes, swamps, and shallow seas like the Western Interior Seaway. The shale splits easily into layers and within these layers ..., interbedded shale, limestone and sandstone. It can also be correlated with the Datta Formation exposed in Kohat -Samana area, which consists of interbedded shale, sandstone and limestone (Table 1). No fossils have been found in the formation. However, Triassic age is assigned to the formation based on its stratigraphic position and …, View the full answer. Transcribed image text: Use the video below to answer each question. Knowns: This rock is composed almost entirely of shell fragments. Question: What is the name of this rock? Rock Names, Chert, Chalk, Coralline Limestone, Sandstone, Shale, Breccia, Conglomerate, Coquina Breccia Coralline Limestone Conglomerate Coquina. , The limestone, shale, sandstone, and underlying volcanic rocks folded upward into the ridges and mountains that now form the Appalachian Mountains in North America and the Atlas Mountains in Africa. Range of High Mountains. After 100 million years or so of collisions, the Appalachians grew to elevations possibly as high as 20,000 feet above sea ..., The oil and natural gas migrated out of the shale and upwards through the sediment mass because of their low density. The oil and gas were often trapped within the pore spaces of an overlying rock unit such as a sandstone (see illustration). These types of oil and gas deposits are known as "conventional reservoirs" because the fluids can easily flow through the pores of the rock and into the ..., Since sandstone is a coarser material than shale or limestone, fossils found in them do not usually show as many details as fossils in shale and limestone. Sandstone rarely contains delicate fossils. Sandstone forms in a wide range of environments, including beaches, oceans, sand bars, dunes, rivers, deltas, deserts and …, Vocabulary: abrasion, chemical weathering, clay formation, climate, dissolving, frost wedging, granite, limestone, mechanical weathering, rusting, sandstone, shale, weathering. Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Compare the two pictures at right. Both pictures show the same kind of rock, granite. Which rock do …, It is the most common non-siliciclastic ( sandstone and shale are common siliciclastic rocks) sedimentary rock. Limestones are rocks that are composed of mostly calcium carbonate (minerals calcite or aragonite). Carbonate rocks where the dominant carbonate is dolomite (calcium magnesium carbonate) are named dolomite rock., The significant facts that could be determined are as follows: the shales between limestone formations are in part green or red; chert is present in the Wreford limestone in all three sections, although it is sparse in section 2; and shale is a prominent part of the Wreford limestone in the subsurface, although it can be correlated only roughly ..., The rock units exposed in these areas are mostly limestone, sandstone, shale, dolomite and slates. The study areas are located on (Changla Gali section on lat. ̊ w y´ v w´´ N: long. ̊ t s´ t y´´ E and Jabrian section on lat. u° w w´ s w´´ N: long. y u° 9´ x w r´´ E) respectively. The Lumshiwal Formation is exposed along a road-cut in Changla Gali section, In a sedimentary sequence, alternating sandstone, shale, and limestone generally indicates a marine environment. Almost all limestone is deposited in the ocean. The sandstones and shale would contain fossils of marine organisms. The shales would almost certainly have no mudcracks. off the continental shelf (Figs. 5-33, 5-34), Though shale rock contains roughly 95% of organic matter in all existing sedimentary rocks, those organic amounts within the rock per mass, are less than the 3% keep it from being an organic sedimentary rock. One of the wonders of sedimentary rocks like shale is that there can be fossils found in between its layers at times. Sandstone, Helderburg Group: mostly cherty limestone, with some sandstone and shale. Contains several named stratigraphic units, including the Keyser Formation, which is partly Silurian and includes the Clifton Forge Sandstone and Big Mountain Shale Members. Stonehenge Limestone (Ordovician) at surface, covers 0.1 % of this area. Gray, thin-bedded to …, Shale: Other: Slate, limestone, sandstone: Location; Region: Appalachian Basin of eastern North America: Extent: 600 miles (970 km) Type section; Named for: Marcellus, New York: Named by: James Hall, 1839: The Marcellus Formation or the Marcellus Shale is a Middle Devonian age unit of sedimentary rock found in eastern North America., Simple water and/or baking soda will not be able to get the job done when cleaning limestone stains, you’ll need a bit more professional approach. Expert Advice On Improving Your Home Videos Latest View All Guides Latest View All Radio Show..., The Clinton Group (or Formation) is a widely traceable, lower Silurian lithostratigraphic unit composed primarily of shale and mudstone, though it encompasses a heterogeneous assemblage of sedimentary rock types, including conglomerate, sandstone, limestone, dolomite, and ironstone. [4] In its designated type area in Clinton, Oneida County, New ..., The relative age of a rock is its age in comparison with other rocks. If you know the relative ages of two rock layers, you know which is older and which is younger, but you do not know how old the layers are in years. In some cases, it is very tricky to determine the sequence of events that leads to a certain formation.