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Egg Hill
Egg Hill is an elongate hill trending northeast–southwest in southern Centre County, Pennsylvania. It is mostly forested and uninhabited. Sinking Creek flows northeastward along the northern foot of Egg Hill. The town of Spring Mills is located at the northeastern end.Spring Mills, PA, 7.5' Topographic Quadrangle Map, 2016. USGS. Scale 1:24,000. The historic Egg Hill Church is located at the southwestern end of the hill. Geology The crest of Egg Hill is along the axis of a minor syncline, within the larger Nittany Anticlinorium. The bedrock along the axis is the Ordovician Bald Eagle Formation, which is mostly 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) ....Berg, T.M., Edmunds, W.E., Geyer, A.R. and others, compilers, (1980). Geologic Map of Pennsylvania: Pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg Hill Church
Egg Hill Church is a historic church located at Potter Township, Centre County, Pennsylvania. It was built in 1860, and is a one-story, banked building built of pine on a stone foundation. It measures 35 feet wide and 42 feet long. Regular services at the church were suspended in 1927. ''Note:'' This includes The church is located at the southwest end of Egg Hill Egg Hill is an elongate hill trending northeast–southwest in southern Centre County, Pennsylvania. It is mostly forested and uninhabited. Sinking Creek flows northeastward along the northern foot of Egg Hill. The town of Spring Mills is loc .... It was added to the National Register of Historic Places in 1979. References External linksThe Pennsylvania Rambler Blog: Thursday, April 8, 2010, Egg Hill Church {{National Register of Historic Places in Pennsylvania Churches on the National Register of Historic Places in Pennsylvania Churches completed in 1860 Churches in Centre County, Pennsylvania Na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg Hill LC08 L1TP 016032 20161114 20170219 01 T1
An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches. Most arthropods such as insects, vertebrates (excluding live-bearing mammals), and mollusks lay eggs, although some, such as scorpions, do not. Reptile eggs, bird eggs, and monotreme eggs are laid out of water and are surrounded by a protective shell, either flexible or inflexible. Eggs laid on land or in nests are usually kept within a warm and favorable temperature range while the embryo grows. When the embryo is adequately developed it hatches, i.e., breaks out of the egg's shell. Some embryos have a temporary egg tooth they use to crack, pip, or break the eggshell or covering. The largest recorded egg is from a whale shark and was in size. Whale shark eggs typically hatch within the mother. At and up to , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg Hill Pennsylvania From 322
An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches. Most arthropods such as insects, vertebrates (excluding live-bearing mammals), and mollusks lay eggs, although some, such as scorpions, do not. Reptile eggs, bird eggs, and monotreme eggs are laid out of water and are surrounded by a protective shell, either flexible or inflexible. Eggs laid on land or in nests are usually kept within a warm and favorable temperature range while the embryo grows. When the embryo is adequately developed it hatches, i.e., breaks out of the egg's shell. Some embryos have a temporary egg tooth they use to crack, pip, or break the eggshell or covering. The largest recorded egg is from a whale shark and was in size. Whale shark eggs typically hatch within the mother. At and up to , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centre County, Pennsylvania
Centre County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 158,172. Its county seat is Bellefonte. Centre County comprises the State College, PA Metropolitan Statistical Area. History The lands of the future Centre County were first recorded by James Potter in 1764. Potter, having reached the top of Nittany Mountain, and "....seeing the prairies and noble forest beneath him, cried out to his attendant, 'By heavens, Thompson, I have discovered an empire!'" After the American Revolutionary War, Centre County was created on February 13, 1800, from parts of Huntingdon, Lycoming, Mifflin, and Northumberland counties; it was named for its central location in the state. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.3%) is water. It is the fifth-largest county in Pennsylvania by area and uses area code 814. Centre has a humid continental climate which is warm-summer (''D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania
Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the fifth-most populous state in the nation with over 13 million residents as of 2020. It is the 33rd-largest state by area and ranks ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's largest and nation's sixth most populous city. Another 2.37 million reside in Greater Pittsburgh in the southwest, centered around Pittsburgh, the state's second-largest and Western Pennsylvania's largest city. The state's su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinking Creek (Pennsylvania)
Sinking Creek is a tributary of Penns Creek in Centre County, Pennsylvania, in the United States. It is approximately long and flows through Harris Township, Potter Township, and Gregg Township. The watershed of the creek has an area of . Course Sinking Creek begins in the Bear Meadows Natural Area in a valley in Harris Township. It flows northeast for a few miles and its valley narrows. The creek eventually enters Potter Township, where it turns northwest before turning northeast again. A short distance later, it passes through Colyer Lake and picks up the tributary Boal Gap Run a short distance afterwards. The creek then begins meandering and crosses U.S. Route 322. Some distance later, it crosses Pennsylvania Route 144 and receives the tributary Potter Run. The course of the creek becomes slightly straighter as it continues northeast on the northern side of a mountain. It eventually enters Gregg Township. A few miles further downstream, it passes north of Egg Hill, and then ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spring Mills, Pennsylvania
Spring Mills is an unincorporated community and census-designated place (CDP) in Centre County, Pennsylvania, Centre County, Pennsylvania, United States. It is part of the State College, Pennsylvania Metropolitan Statistical Area. The population was 268 at the United States Census 2010, 2010 census. Geography Spring Mills is located in southeastern Centre County, near the center of Gregg Township, Centre County, Pennsylvania, Gregg Township. It is in the Penns Valley, at the confluence of Sinking Creek (Pennsylvania), Sinking Creek with Penns Creek. According to the United States Census Bureau, the CDP has a total area of , all land. Pennsylvania Route 45 runs along the northern edge of the community, leading west to Centre Hall, Pennsylvania, Centre Hall and to State College, Pennsylvania, State College, and east to Millheim, Pennsylvania, Millheim. Demographics At the 2010 United States Census, 2010 census there were 268 people, 109 households, and 83 families in the CDP. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syncline
In structural geology, a syncline is a fold with younger layers closer to the center of the structure, whereas an anticline is the inverse of a syncline. A synclinorium (plural synclinoriums or synclinoria) is a large syncline with superimposed smaller folds. Synclines are typically a downward fold (synform), termed a synformal syncline (i.e. a trough), but synclines that point upwards can be found when strata have been overturned and folded (an antiformal syncline). Characteristics On a geologic map, synclines are recognized as a sequence of rock layers, with the youngest at the fold's center or ''hinge'' and with a reverse sequence of the same rock layers on the opposite side of the hinge. If the fold pattern is circular or elongate, the structure is a basin. Folds typically form during crustal deformation as the result of compression that accompanies orogenic mountain building. Notable examples * Powder River Basin, Wyoming, US * Sideling Hill roadcut along Interstate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anticline
In structural geology, an anticline is a type of fold that is an arch-like shape and has its oldest beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex up in which the hinge or crest is the location where the curvature is greatest, and the limbs are the sides of the fold that dip away from the hinge. Anticlines can be recognized and differentiated from antiforms by a sequence of rock layers that become progressively older toward the center of the fold. Therefore, if age relationships between various rock strata are unknown, the term antiform should be used. The progressing age of the rock strata towards the core and uplifted center, are the trademark indications for evidence of anticlines on a geologic map. These formations occur because anticlinal ridges typically develop above thrust faults during crustal deformations. The uplifted core of the fold causes compression of strata that preferentially erodes to a deeper st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordovician
The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. The Ordovician, named after the Celtic Britons, Welsh tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same Rock (geology), rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed Stratum, strata were different from those of either the Cambrian or the Silurian systems, and placed them in a system of their own. The Ordovician received international approval in 1960 (forty years after Lapworth's death), when it was adopted as an official period of the Paleozoic Era by the International Union of Geological Sciences, Intern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bald Eagle Formation
The Ordovician Bald Eagle Formation is a mapped bedrock unit in central Pennsylvania, USA. It is a ridge-forming unit in the Appalachian Mountains. Description The Bald Eagle is defined as a gray to olive-gray and grayish-red, fine to coarse-grained crossbedded sandstone or greywacke. A conglomeratic member, called the Lost Run Member, exists in some locations.Berg, T.M., Edmunds, W.E., Geyer, A.R. and others, compilers, (1980). Geologic Map of Pennsylvania: Pennsylvania Geologic Survey, Map 1, scale 1:250,000. Depositional environment The depositional environment of the Bald Eagle has always been interpreted as mostly terrestrial or shallow marine deposits resulting in a molasse sequence produced by the Taconic orogeny. Fossils Very few fossils exist in the Bald Eagle Formation, and most of them are trace fossils. However, at the base of the formation is the ''Orthorynchula'' biostratigraphic marker bed, which contains abundant ''Orthorynchula'' brachiopods. Age Relative ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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