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46-799: Adirondack may refer to: Places [ edit ] Adirondack Mountains , New York, US Adirondack Park , a protected area in the US, containing a large portion of the Adirondack Mountains Adirondack County, New York , a proposed county in New York Adirondack, New York , a place in New York Transport [ edit ] Adirondack (train) , an Amtrak passenger rail route connecting New York City and Montreal Adirondack guideboat ,

92-636: A projectile point of red-brown chert found in 2007 at the edge of Tupper Lake. During an interval of roughly 11,000 years following the end of the Last Glacial Period, the climate of the Adirondacks gradually warmed, with the area's tundra being replaced by forests that were now able to grow. During the transition between the Archaic and Woodland (1000 BC – AD 1000) periods, multiple different groups replaced

138-426: A 10,000 feet (ca. 3,048 m) thick layer of ice to completely melt. Evidence of this period includes: Soils in the area are generally thin, sandy, acidic, and infertile, having developed since the glacial retreat. The climate is strongly continental , with high humidity and precipitation year-round. The Adirondacks typically experience pleasantly warm, rainy weather in the summer (June–August), with temperatures in

184-511: A few tens to exist. Hawaii , Réunion , Yellowstone , Galápagos , and Iceland are some of the most active volcanic regions to which the hypothesis is applied. The plumes imaged to date vary widely in width and other characteristics, and are tilted, being not the simple, relatively narrow and purely thermal plumes many expected. Only one, (Yellowstone) has as yet been consistently modelled and imaged from deep mantle to surface. Most hotspot volcanoes are basaltic (e.g., Hawaii , Tahiti ). As

230-413: A museum Adirondack Flames , former American Hockey League team (2014–15) Adirondack Great Camps Adirondack Phantoms , former American Hockey League team (2009–2014) Adirondack Red Wings , former American Hockey League team (1979–1999) Adirondack shelter , a style of lean-to Picea rubens or Adirondack, a species of spruce tree used to make musical instruments Topics referred to by

276-509: A result, they are less explosive than subduction zone volcanoes, in which water is trapped under the overriding plate. Where hotspots occur in continental regions , basaltic magma rises through the continental crust, which melts to form rhyolites . These rhyolites can form violent eruptions. For example, the Yellowstone Caldera was formed by some of the most powerful volcanic explosions in geologic history. However, when

322-973: A rowed skiff, built to be carried between bodies of water, originally designed for hunting USS Adirondack (1862) , a gunboat during the American Civil War that sank off the Bahamas USS Adirondack (YT-44) , an iron-hulled screw tug originally known as the Underwriter USS Adirondack (ID-1270) , commissioned into the Navy in 1917 and used as a floating barracks until 1919 USS Adirondack (AGC-15) , an amphibious force flagship in service from 1945 to 1955 Other uses [ edit ] Adirondack (Mars) , Mars Exploration Rover Spirit's first target rock for investigation Adirondack Architecture , an American style of construction Adirondack Beverages ,

368-537: A soft drink company based in New York state, that produces the Adirondack brand sodas Adirondack Canoe Classic , a three-day, 90-mile (140 km) canoe race from Old Forge to Saranac Lake (also known as the "90-miler") Adirondack chair , a type of chair used primarily in an outdoors setting Adirondack Community College (US), a two-year college located in the state of New York Adirondack Experience ,

414-578: Is caused by a hot spot in the Earth's crust . A recent study has revealed a column of seismically slow materials about 50–80 km deep beneath the Adirondack Mountains, which was interpreted to be the upwelling asthenosphere contributing to the uplift of the mountains. The occurrence of earthquake swarms near the center of the massif at Blue Mountain Lake may be evidence of this. Some of

460-555: Is considered extremely fragile, and was damaged by hikers prior to a 1970s campaign by the Adirondack Mountain Club to preserve it. Hotspot (geology) In geology , hotspots (or hot spots ) are volcanic locales thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle. Examples include the Hawaii , Iceland , and Yellowstone hotspots . A hotspot's position on

506-411: Is different from Wikidata All article disambiguation pages All disambiguation pages Adirondack Mountains Although the mountains are formed from ancient rocks more than 1 billion years old, geologically, the mountains are relatively young and were created during recent periods of glaciation. Because of this, the Adirondacks have been referred to as "new mountains from old rocks." It

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552-473: Is not anomalously hot, rather the crust above is unusually weak or thin, so that lithospheric extension permits the passive rising of melt from shallow depths. The origins of the concept of hotspots lie in the work of J. Tuzo Wilson , who postulated in 1963 that the formation of the Hawaiian Islands resulted from the slow movement of a tectonic plate across a hot region beneath the surface. It

598-477: Is now closely linked to the mantle plume hypothesis. The detailed compositional studies now possible on hotspot basalts have allowed linkage of samples over the wider areas often implicate in the later hypothesis, and it's seismic imaging developments. Hotspot volcanoes are considered to have a fundamentally different origin from island arc volcanoes. The latter form over subduction zones, at converging plate boundaries. When one oceanic plate meets another,

644-489: Is theorized that there is a hotspot beneath the region, which causes continued uplift at the rate of 1.5–3 centimetres ( 5 ⁄ 8 – 1 + 1 ⁄ 8  in) annually. The Adirondack mountain range has such unusual characteristics compared to the area around it that it is divided into its own province within the Appalachian Highlands physiographic division. It is bounded by three other provinces:

690-616: The Algonquians who allied with the French. Another early use of the name, spelled Rontaks , was in 1729 by French missionary Joseph-François Lafitau . He explained that the word was used by the Iroquois as a derogatory term for groups of Algonquians who did not practice agriculture and therefore sometimes had to eat tree bark to survive harsh winters. The Mohawks had no written language, so Europeans used various phonetic spellings of

736-626: The sedimentary rock was changed into metamorphic rock . It is these Proterozoic minerals and lithologies that make up the core of the massif. Minerals of interest include: The Adirondacks are uplifted by a hot spot in the Canadian Shield in contrast to other mountain ranges in New York which are a part of the Appalachian chain (not to be confused with the cultural region of Appalachia). Around 600 million years ago, as Laurentia drifted away from Baltica (European Craton),

782-479: The 20th century failed for numerous reasons, including poaching, vehicle collisions, and conservation incompetence. Nearly 60 percent of the park is covered with northern hardwood forest . Above 2,600 feet (790 meters), conditions are too poor for hardwoods to thrive, and the trees become mixed with or replaced by balsam fir and red spruce . Above 3,500 feet (1,100 meters) black spruce replace red. Higher still, only trees short enough to be covered in snow during

828-553: The Adirondack Mountains as hunting grounds. According to Haudenosaunee historian Rick Hill, the region was considered a ' Dish with One Spoon ,' symbolizing shared hunting resources between the groups. A group of Algonquian people, known as the Mahicans, also occupied the region, particularly the Hudson River Valley. These were the groups that the first European explorers of the area encountered. European presence in

874-433: The Adirondack mountains. Because local Iroquoian and Algonquian tribes had been decimated first by smallpox and measles in the 1600s, then by wars with encroaching European settlers, there likely were very few people living in the region by the time Pownhall wrote his description. It is only relatively recently that numerous archaeological finds have definitively shown that Native Americans were indeed very present in

920-441: The Adirondacks before European contact, hunting, making pottery, and practicing agriculture. The European impression of a wild region devoid of human connection set up a narrative about wilderness that would persist through the next 200-some years of the region's history. While society's perception of the Adirondacks' value changed, they were always seen as a land of natural resources and physical beauty, not of human history. First

966-674: The Adirondacks were Paleo-Indians who arrived around the 14th millennium BC following the end of the Last Glacial Period . The earliest migrants arrived from the St. Lawrence River Valley to the north, and settled along the shores of the Champlain Sea . During the Archaic Period (8000–1000 BC) this semi-nomadic hunter-gatherer Laurentian culture inhabited the Adirondacks; evidence of their presence includes

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1012-405: The Earth's surface is independent of tectonic plate boundaries , and so hotspots may create a chain of volcanoes as the plates move above them. There are two hypotheses that attempt to explain their origins. One suggests that hotspots are due to mantle plumes that rise as thermal diapirs from the core–mantle boundary. The alternative plate theory is that the mantle source beneath a hotspot

1058-704: The Laurentian culture—including the Sylvan Lake, River, Middlesex, Point Peninsula, and Owasco cultures. By the time of the Owasco culture c.  1 AD , maize and beans were being cultivated in the uplands of the Adirondacks. The first Iroquoian peoples, the Mohawk (or Kanyengehaga) and the Oneida (or Oneyotdehaga), arrived in the Adirondack region between 4,000 and 1,200 years ago. Both groups claimed

1104-657: The St. Lawrence (Champlain) on the north, northeast; the Appalachian Plateau to the south, southwest; and the Valley and Ridge to the southeast. The entire region lies within Adirondack Park , a New York state protected area of over 6,000,000 acres (2,400,000 ha). The park was established in 1892 by the state legislature to protect the region's natural resources and to provide recreational opportunities for

1150-525: The area began to be pulled apart forming the Iapetus Ocean . Faults developed, running north to northeast which formed valleys and deep lakes. Examples visible today include the grabens Lake George and Schroon Lake . By this time the Grenville mountains had been eroded away and the area was covered by a shallow sea. Several thousand feet of sediment accumulated on the sea bed. Trilobites were

1196-422: The area began with a battle between Samuel de Champlain and a group of Mohawks, in what is now Ticonderoga in 1609. The Jesuit missionary Isaac Jogues became the first recorded European to travel through the center of the Adirondacks, as the captive of a Mohawk hunting party, in 1642. The early European perception of the Adirondacks was of a vast, inhospitable wilderness. One map of the area from 1771 shows

1242-513: The area was an inhospitable tangle, then a lucrative store of lumber. After the American Revolutionary War , New York State gained ownership of most of the land in the region. Needing money to discharge war debts, the government sold nearly all the original public acreage about 7 million acres for pennies an acre. Lumbermen were welcomed to the interior, with few restraints, resulting in massive deforestation . Later,

1288-537: The concept of a hotspot has been used to explain its origin. A review article by Courtillot et al. listing possible hotspots makes a distinction between primary hotspots coming from deep within the mantle and secondary hotspots derived from mantle plumes. The primary hotspots originate from the core/mantle boundary and create large volcanic provinces with linear tracks (Easter Island, Iceland, Hawaii, Afar, Louisville, Reunion, and Tristan confirmed; Galapagos, Kerguelen and Marquersas likely). The secondary hotspots originate at

1334-474: The denser plate is forced downward into a deep ocean trench. This plate, as it is subducted, releases water into the base of the over-riding plate, and this water mixes with the rock, thus changing its composition causing some rock to melt and rise. It is this that fuels a chain of volcanoes, such as the Aleutian Islands , near Alaska . The joint mantle plume /hotspot hypothesis originally envisaged

1380-546: The earthquakes have exceeded 5 on the Richter magnitude scale . Starting about 2.5 million years ago, a cycle of Pleistocene glacial and interglacial periods began which covered the area in ice. During the most recent episode, the Laurentide Ice Sheet covered most of northern North America between about 95,000 and c. 20,000 years ago. After this the climate warmed, but it took nearly 10,000 years for

1426-509: The feeder structures to be fixed relative to one another, with the continents and seafloor drifting overhead. The hypothesis thus predicts that time-progressive chains of volcanoes are developed on the surface. Examples are Yellowstone , which lies at the end of a chain of extinct calderas, which become progressively older to the west. Another example is the Hawaiian archipelago, where islands become progressively older and more deeply eroded to

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1472-496: The more recent human history of the Adirondack region, see Adirondack Park . The rocks of the Adirondack mountains originated about two billion years ago as 50,000 feet (ca. 15,240 m) thick sediments at the bottom of a sea located near the equator . Because of plate tectonics these collided with Laurentia (the precursor of modern North America) in a mountain building episode known as the Grenville orogeny . During this time

1518-539: The northwest. Geologists have tried to use hotspot volcanic chains to track the movement of the Earth's tectonic plates. This effort has been vexed by the lack of very long chains, by the fact that many are not time-progressive (e.g. the Galápagos ) and by the fact that hotspots do not appear to be fixed relative to one another (e.g. Hawaii and Iceland ). That mantle plumes are much more complex than originally hypothesised and move independently of each other and plates

1564-593: The principal life-form of the sea bed, and fossil tracks can be seen in the Potsdam sandstone floor of the Paul Smiths Visitor Interpretive Center. About 10 million years ago, the region began to be uplifted. It has been lifted about 7000 feet (ca. 2,134 meters) and is continuing at about 2 millimeters per year, which is greater than the rate of denudation . The cause of the uplift is unknown, but geologists theorize that it

1610-420: The public. It covers over 20 percent of New York state's land area. The word Adirondack is thought to come from the Mohawk word atirǫ́·taks meaning "eaters of trees". The earliest written use of the name was in 1635 by Harmen Meyndertsz van den Bogaert in his Mohawk to Dutch glossary, found in his Journey into Mohawk Country . He spelled it Adirondakx and said that it stood for Frenchmen, meaning

1656-566: The range of 66–73 °F (19–23 °C), cooler than the rest of New York State due to the higher elevation. Summer evenings in the Adirondacks are chilly, with temperatures ranging on average between 45–54 °F (7–12 °C). Winters (December–March) are long, cold, snowy and harsh, with temperatures ranging from 18 to 23 °F (−8 to −5 °C). Winter nights are frigid, with temperatures between −2 and 4 °F (−19 and −16 °C). Spring (April–May) and fall (September–November) are short transitional seasons. The Adirondack Mountains form

1702-713: The region as a blank space in the northeastern corner of New York. In 1784, Thomas Pownhall wrote that the Native Americans referred to the area as "the Dismal Wilderness, or the Habitation of Winter," and that the area was "either not much known to them, or, if known, very wisely by them kept from the Knowledge of the Europeans." He clearly had the impression that native people did not live within

1748-531: The rhyolite is completely erupted, it may be followed by eruptions of basaltic magma rising through the same lithospheric fissures (cracks in the lithosphere). An example of this activity is the Ilgachuz Range in British Columbia, which was created by an early complex series of trachyte and rhyolite eruptions, and late extrusion of a sequence of basaltic lava flows. The hotspot hypothesis

1794-456: The same term [REDACTED] This disambiguation page lists articles associated with the title Adirondack . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Adirondack&oldid=1020948287 " Categories : Disambiguation pages Place name disambiguation pages Hidden categories: Short description

1840-652: The southernmost part of the Eastern forest-boreal transition ecoregion . They are heavily forested, and contain one of the southernmost distributions of the taiga ecotype in North America. The forests of the Adirondacks include spruce , pine and deciduous trees. Lumbering, once an important industry, has been much restricted by the creation of state forest preserve. The mountains include many wetlands , of which there are three kinds: Breeding birds include northern forest specialists not found anywhere else in

1886-515: The state, such as boreal chickadees , Canada jays , spruce grouse , black-backed woodpeckers , common loons and crossbills . Mammals include raccoons , beavers , river otters , bobcats , moose , black bears , and coyotes . Extirpated or extinct mammals that formerly roamed the Adirondacks include the eastern cougar , eastern elk , wolverine , caribou , eastern wolf , and the Canada lynx . Attempted reintroductions of elk and lynx in

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1932-526: The upper/lower mantle boundary, and do not form large volcanic provinces, but island chains (Samoa, Tahiti, Cook, Pitcairn, Caroline, MacDonald confirmed, with up to 20 or so more possible). Other potential hotspots are the result of shallow mantle material surfacing in areas of lithospheric break-up caused by tension and are thus a very different type of volcanism. Estimates for the number of hotspots postulated to be fed by mantle plumes have ranged from about 20 to several thousand, with most geologists considering

1978-567: The wilderness character of the region became popular with the rise of the Romantic movement , and the Adirondacks became a destination for those wishing to escape the evils of city life. Rising concern over water quality and deforestation led to the creation of the Adirondack Park in 1885. In 1989, part of the Adirondack region was designated by UNESCO as the Champlain-Adirondack Biosphere Reserve . For

2024-434: The winter can survive. A small area on the highest peaks exists above the tree line and has an alpine climate . These areas are covered by plants which occupied a large lowland tundra following the most recent period of glaciation. The amount of area covered by this ecosystem changes from year to year due to local climate changes, and has been estimated to only cover between 65–85 acres (26–34 hectares). The alpine ecosystem

2070-470: The word, including Achkokx , Rondaxe , and Adirondax. Such words were strongly associated with the region, but they were not yet considered a place name; an English map from 1761 labels the area simply Deer Hunting Country . In 1838, the mountains were named Adirondacks by Ebenezer Emmons , the State Geologist for the northern New York State Geological District. The first humans to live in

2116-419: Was later postulated that hotspots are fed by streams of hot mantle rising from the Earth's core–mantle boundary in a structure called a mantle plume . Whether or not such mantle plumes exist has been the subject of a major controversy in Earth science, but seismic images consistent with evolving theory now exist. At any place where volcanism is not linked to a constructive or destructive plate margin,

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