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South Branch Bowman Creek
South Branch Bowman Creek (also known as Cherry Run) is a tributary of Bowman Creek in Luzerne County, Pennsylvania, in the United States. It is approximately long and flows through Fairmount Township and Ross Township. The watershed of the creek has an area of . The surficial geology in its vicinity consists of alluvial fan, alluvium, Wisconsinan Ice-Contact Sratified Drift, fill, lakes, Boulder Colluvium, Wisconsinan Till, Wisconsinan Bouldery Till, wetlands, and bedrock. Most of the creek is in Ricketts Glen State Park. It has one named tributary, which is known as Cherry Run. The creek's watershed is designated as a High-Quality Coldwater Fishery and a Migratory Fishery. Course South Branch Bowman Creek begins in a wetland in Fairmount Township. It flows north for several hundred feet before flowing in an easterly direction for several tenths of a mile. The creek then turns north for several tenths of a mile before heading east-northeast. In this reach, it receives Cherry Run ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Susquehanna River
The Susquehanna River (; Lenape: Siskëwahane) is a major river located in the Mid-Atlantic region of the United States, overlapping between the lower Northeast and the Upland South. At long, it is the longest river on the East Coast of the United States. By watershed area, it is the 16th-largest river in the United States,Susquehanna River Trail Pennsylvania Fish and Boat Commission, accessed March 25, 2010.Susquehanna River , Green Works Radio, accessed March 25, 2010. and also the longest river in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alluvial Fan
An alluvial fan is an accumulation of sediments that fans outwards from a concentrated source of sediments, such as a narrow canyon emerging from an escarpment. They are characteristic of mountainous terrain in arid to semiarid climates, but are also found in more humid environments subject to intense rainfall and in areas of modern glaciation. They range in area from less than to almost . Alluvial fans typically form where flow emerges from a confined channel and is free to spread out and infiltrate the surface. This reduces the carrying capacity of the flow and results in deposition of sediments. The flow can take the form of infrequent debris flows or one or more ephemeral or perennial streams. Alluvial fans are common in the geologic record, such as in the Triassic basins of eastern North America and the New Red Sandstone of south Devon. Such fan deposits likely contain the largest accumulations of gravel in the geologic record. Alluvial fans have also been found on Mars ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Jean
Lake Jean is a lake in Luzerne County and Sullivan County, in Pennsylvania, in the United States. It has a surface area of approximately and is situated in Colley Township, Sullivan County and Fairmount Township, Luzerne County. The lake's main inflow is the outlet of Ganoga Lake. Lake Jean is fairly shallow, with an average depth of . It is in the watershed of Fishing Creek. The main rock formations in the lake's watershed include Burgoon Sandstone and the Mauch Chunk Formation. The lake is dammed by the Lake Jean Dam and is owned by the Pennsylvania Department of Conservation and Natural Resources. Lake Jean historically had a low pH due to impairment by atmospheric deposition. The lake has become less acidic, but continues to be impaired by mercury. Its watershed has an area of , including the lake itself. The majority of the watershed is forested, though there are a few other land uses. The lake was named by Colonel R. Bruce Ricketts in 1905 after Jean Holberton Ricketts, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Leigh (Pennsylvania)
Leigh Lake is located in Grand Teton National Park, in the U. S. state of Wyoming. The glacially formed lake is wide and long from north to south. Situated just southeast of Mount Moran, the lake is at the terminus of both Paintbrush and Leigh Canyons. The lake can be accessed from the Leigh Lake Trail which follows the eastern shores of String Lake a distance of one mile (1.6 km) and is an easy hike over level terrain. The Leigh Lake Ranger Patrol Cabin is located on the northeast shore of the lake and is on the National Register of Historic Places. The lake was named for Richard "Beaver Dick" Leigh, a mountain guide. Aerial image of Mount Moran and Mount Woodring (view from the east).jpg, Leigh Lake (bottom left) with Paintbrush Canyon, Mount Woodring, Leigh Canyon, and Mount Moran above (from left to right) Leigh Lake and Mount Moran Grand Teton National Park.jpg, Leigh Lake See also *Geology of the Grand Teton area The geology of the Grand Teton area consis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
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, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers ( laminae) less than one centimeter in thickness. This property is called '' fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks into thin layers, often splintery and usually parallel to the otherwise indistinguishable beddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedrock
In geology, bedrock is solid Rock (geology), rock that lies under loose material (regolith) within the crust (geology), crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface material. An exposed portion of bedrock is often called an outcrop. The various kinds of broken and weathered rock material, such as soil and subsoil, that may overlie the bedrock are known as regolith. Engineering geology The surface of the bedrock beneath the soil cover (regolith) is also known as ''rockhead'' in engineering geology, and its identification by digging, drilling or geophysics, geophysical methods is an important task in most civil engineering projects. Superficial deposition (geology), deposits can be very thick, such that the bedrock lies hundreds of meters below the surface. Weathering of bedrock Exposed bedrock experiences weathering, which may be physical or chemical, and which alters the structure of the rock to leave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Till
image:Geschiebemergel.JPG, Closeup of glacial till. Note that the larger grains (pebbles and gravel) in the till are completely surrounded by the matrix of finer material (silt and sand), and this characteristic, known as ''matrix support'', is diagnostic of till. image:Glacial till exposed in roadcut-750px.jpg, Glacial till with tufts of grass Till or glacial till is unsorted glacier, glacial sediment. Till is derived from the erosion and entrainment of material by the moving ice of a glacier. It is deposited some distance down-ice to form terminal, lateral, medial and ground moraines. Till is classified into primary deposits, laid down directly by glaciers, and secondary deposits, reworked by fluvial transport and other processes. Description Till is a form of '' glacial drift'', which is rock material transported by a glacier and deposited directly from the ice or from running water emerging from the ice. It is distinguished from other forms of drift in that it is depos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Branch Bowman Creek
North Branch Bowman Creek is a tributary of Bowman Creek in Luzerne County, Pennsylvania, in the United States. It is approximately long and flows through Fairmount Township and Ross Township. The watershed of the creek has an area of . The creek is not designated as an impaired waterbody. The surficial geology in its vicinity includes Wisconsinan Till, alluvial fan, Boulder Colluvium, alluvium, bedrock, and a peat bog. The creek is mostly in Pennsylvania State Game Lands and Ricketts Glen State Park. The drainage basin of North Branch Bowman Creek is designated as a High-Quality Coldwater Fishery and a Migratory Fishery. The creek has been stocked with fish in the past, but also has wild trout. There is a hiking trail that is located in its vicinity. An natural lake is situated on the creek. Course North Branch Bowman Creek begins in a wetland in Fairmount Township. It flows in a northeasterly direction for a few tenths of a mile before turning south-southeast for several ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conglomerate (geology)
Conglomerate () is a clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts. A conglomerate typically contains a matrix of finer-grained sediments, such as sand, silt, or clay, which fills the interstices between the clasts. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form by the consolidation and lithification of gravel. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and sedimentary rocks.'' In G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The atoms are linked in a continuous framework of SiO4 silicon-oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classified as gemstones. Since antiquity, varieties of quartz have been the most commonly used minerals in the making of jewelry and hardstone carvings, especially in Eurasia. Quartz is the mineral defining the val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boulder
In geology, a boulder (or rarely bowlder) is a rock fragment with size greater than in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In common usage, a boulder is too large for a person to move. Smaller boulders are usually just called rocks or stones. The word ''boulder'' derives from ''boulder stone'', from the Middle English ''bulderston'' or Swedish ''bullersten''. Online Etymology Dictionary. Retrieved December 9, 2011, from Dictionary.com website. In places covered by s during s, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saunders_Quarry-1.jpg "Click for more on -> Sandstone")
