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Saltonstall Mountain
Saltonstall Mountain, also known as Saltonstall Ridge (''Lonotonoquet'' in Quinnipiac), with a high point of (est.) above sea level, is a traprock mountain ridge located east of New Haven, Connecticut and north of Long Island Sound. It is part of the Metacomet Ridge that extends from Long Island Sound near New Haven, Connecticut, north through the Connecticut River Valley of Massachusetts to the Vermont border. Saltonstall Mountain is known for its scenic cliff faces and sharp ridgeline, unique microclimate ecosystems, rare plant communities, and for Lake Saltonstall, a long by 0.3 miles (400 m) wide municipal reservoir nearly enclosed by the mountain. Saltonstall Mountain is traversed by a number of hiking trails managed by the South Central Connecticut Regional Water Authority (SCCRWA) and Branford Land Trust. Geography Saltonstall Mountain rises steeply above the surrounding landscape, with a high point of (est.) . It is roughly long by wide and shaped like a h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter's Rock
Peter's Rock, also known as Rabbit Rock, Rabbit Hill, Indian Rock and Great Rock, with a high point of (est.) above sea level, is a trap rock peak located northeast of downtown New Haven, Connecticut in the town of North Haven. It is part of the Metacomet Ridge that extends from Long Island Sound near New Haven, north through the Connecticut River Valley of Massachusetts to the Vermont border. Peter's Rock is known for its scenic views, unique microclimate ecosystems, rare plant communities, and columnar basalt rock formations. It is traversed by a number of hiking trails managed by the non-profit Peter's Rock Association. Geography Peter's Rock rises steeply above the surrounding landscape, with a high point of (est.) . It is roughly three quarters of a mile long by a quarter of mile (1,000 m × 400 m) wide. The peak lies within the town of North Haven, near the border of East Haven. The summit is open with a 360° view encompassing Long Island Sound, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Rock
East Rock of south-central Connecticut, United States, with a high point of , is a long trap rock ridge located primarily in the neighborhood of East Rock on the north side of the city of New Haven. A prominent landscape feature and a popular outdoor recreation area with cliffs that rise over the city below, East Rock is part of the narrow, linear Metacomet Ridge that extends from Long Island Sound near New Haven, north through the Connecticut River Valley of Massachusetts to the Vermont border.Farnsworth, Elizabeth J"Metacomet-Mattabesett Trail Natural Resource Assessment.", 2004. PDF file. Cited Nov. 20, 2007.DeLorme Topo 6.0. Mapping Software. DeLorme, Yarmouth, Maine East Rock is the central feature of East Rock Park, a municipal park owned by the city of New Haven along the New Haven-Hamden town line. Geography East Rock, located in New Haven and Hamden, Connecticut, is long by wide at its widest point, although steepness of the terrain make the actual land area muc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Totoket Mountain
Totoket Mountain, with a high point of (est.) above sea level, is a traprock massif with several distinct summits, located northeast of New Haven, Connecticut. It is part of the Metacomet Ridge that extends from the Long Island Sound near New Haven, north through the Connecticut River Valley of Massachusetts to the Vermont border. Totoket Mountain is known for its scenic cliffs, unique microclimate ecosystems, rare plant communities, and for Lake Gaillard, a public reservoir nearly enclosed by the mountain. The north ridge of Totoket Mountain is traversed by the Mattabesett Trail and a significant network of shorter trails. The name "Totoket Mountain" applies to both the entire mountain and to a subordinate northwestern peak (). Geography Totoket Mountain rises steeply between and above the surrounding landscape, with a high point of (est.) above sea level. It is roughly long by wide at its widest point and lies within the towns of Durham, North Branford, and Guilfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Branford, Connecticut
Branford is a shoreline New England town, town located on Long Island Sound in New Haven County, Connecticut, New Haven County, Connecticut, about east of downtown New Haven, Connecticut, New Haven. The population was 28,273 at the 2020 United States Census, 2020 census. Geography According to the United States Census Bureau, the town has a total area of ; are land and (21.5%) are water, including the Branford River, Queach Brook and the Branford Supply Ponds. There are two harbors, the more central Branford Harbor and Stony Creek Harbor on the east end, and one town beach at Branford Point. Much of the town's border with East Haven, Connecticut, East Haven to the west is dominated by Lake Saltonstall (Connecticut), Lake Saltonstall, a reservoir owned by the South Central Connecticut Regional Water Authority, and Saltonstall Mountain, part of the Metacomet Ridge, a mountainous trap rock ridgeline that stretches from Long Island Sound to nearly the Vermont border. The southern ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scree
Scree is a collection of broken rock fragments at the base of a cliff or other steep rocky mass that has accumulated through periodic rockfall. Landforms associated with these materials are often called talus deposits. Talus deposits typically have a concave upwards form, where the maximum inclination corresponds to the angle of repose of the mean debris particle size. The exact definition of scree in the primary literature is somewhat relaxed, and it often overlaps with both ''talus'' and ''colluvium''. The term ''scree'' comes from the Old Norse term for landslide, ''skriða'', while the term ''talus'' is a French word meaning a slope or embankment. In high-altitude arctic and subarctic regions, scree slopes and talus deposits are typically adjacent to hills and river valleys. These steep slopes usually originate from late-Pleistocene periglacial processes. Notable scree sites in Eastern North America include the Ice Caves at White Rocks National Recreation Area in southern Ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or underwater, usually at temperatures from . The volcanic rock resulting from subsequent cooling is also often called ''lava''. A lava flow is an outpouring of lava during an effusive eruption. (An explosive eruption, by contrast, produces a mixture of volcanic ash and other fragments called tephra, not lava flows.) The viscosity of most lava is about that of ketchup, roughly 10,000 to 100,000 times that of water. Even so, lava can flow great distances before cooling causes it to solidify, because lava exposed to air quickly develops a solid crust that insulates the remaining liquid lava, helping to keep it hot and inviscid enough to continue flowing. The word ''lava'' comes from Italian and is probably derived from the Latin word ''labes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasia
Eurasia (, ) is the largest continental area on Earth, comprising all of Europe and Asia. Primarily in the Northern and Eastern Hemispheres, it spans from the British Isles and the Iberian Peninsula in the west to the Japanese archipelago and the Russian Far East to the east. The continental landmass is bordered by the Atlantic Ocean and Africa to the west, the Pacific Ocean to the east, the Arctic Ocean to the north, and by Africa, the Mediterranean Sea, and the Indian Ocean to the south. The division between Europe and Asia as two continents is a historical social construct, as many of their borders are over land; thus, in some parts of the world, Eurasia is recognized as the largest of the six, five, or four continents on Earth. In geology, Eurasia is often considered as a single rigid megablock. However, the rigidity of Eurasia is debated based on paleomagnetic data. Eurasia covers around , or around 36.2% of the Earth's total land area. It is also home to the largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rift (geology)
In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics. Typical rift features are a central linear downfaulted depression, called a graben, or more commonly a half-graben with normal faulting and rift-flank uplifts mainly on one side. Where rifts remain above sea level they form a rift valley, which may be filled by water forming a rift lake. The axis of the rift area may contain volcanic rocks, and active volcanism is a part of many, but not all, active rift systems. Major rifts occur along the central axis of most mid-ocean ridges, where new oceanic crust and lithosphere is created along a divergent boundary between two tectonic plates. ''Failed rifts'' are the result of continental rifting that failed to continue to the point of break-up. Typically the transition from rifting to spreading develops at a triple junction where three converging rifts meet over a hotspot. Two of these evolve to the point ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic Period
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of arch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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