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David A. Johnston
David Alexander Johnston (December 18, 1949 – May 18, 1980) was an American United States Geological Survey (USGS) volcanologist who was killed by the 1980 eruption of Mount St. Helens in the U.S. state of Washington (state), Washington. A principal scientist on the USGS monitoring team, Johnston was killed in the eruption while manning an observation post away on the morning of May 18, 1980. He was the first to report the eruption, transmitting "Vancouver! Vancouver! This is it!" before he was swept away by a lateral eruption, lateral blast; despite a thorough search, Johnston's body was never found, but state highway workers discovered remnants of his USGS trailer in 1993. Johnston's career took him across the United States, where he studied the Augustine Volcano in Alaska, the San Juan volcanic field in Colorado, and long-extinct volcanoes in Michigan. Johnston was a meticulous and talented scientist, known for his analyses of volcanic gases and their relationship to erupt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount St
Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, Cornwall, England People * Mount (surname) * William L. Mounts (1862–1929), American lawyer and politician Computing and software * Mount (computing), the process of making a file system accessible * Mount (Unix), the utility in Unix-like operating systems which mounts file systems Books * '' Mount!'', a 2016 novel by Jilly Cooper Displays and equipment * Mount, a fixed point for attaching equipment, such as a hardpoint on an airframe * Mounting board, in picture framing * Mount, a hanging scroll for mounting paintings * Mount, to display an item on a heavy backing such as foamcore, e.g.: ** To pin a biological specimen, on a heavy backing in a stretched stable position for ease of dissection or display ** To prepare dead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Glicken
Harry Glicken (March 7, 1958 – June 3, 1991) was an American volcanologist. He researched Mount St. Helens in the United States before and after its 1980 eruption, and was very distraught about the death of volcanologist David A. Johnston, who was Glicken's mentor and supervisor in Spring 1980 at Mount St. Helens. Glicken was initially assigned to the USGS observation post in the weeks leading up to the eruption but was called away the night before the eruption. In 1991, while conducting avalanche research on Mount Unzen in Japan, Glicken and fellow volcanologists Katia and Maurice Krafft were killed by a pyroclastic flow. His remains were found four days later and were cremated in accordance with his parents' request. Glicken and Johnston remain the only American volcanologists known to have died in volcanic eruptions. Despite a long-term interest in working for the United States Geological Survey, Glicken never received a permanent post there because there was a hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphism (geology)
Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of , and often also at elevated pressure or in the presence of chemically active fluids, but the rock remains mostly solid during the transformation. Metamorphism is distinct from weathering or diagenesis, which are changes that take place at or just beneath Earth's surface. Various forms of metamorphism exist, including regional, contact, hydrothermal, shock, and dynamic metamorphism. These differ in the characteristic temperatures, pressures, and rate at which they take place and in the extent to which reactive fluids are involved. Metamorphism occurring at increasing pressure and temperature conditions is known as ''prograde metamorphism'', while decreasing temperature and pressure characterize ''retrograde metamorphism''. Metamorphic petrology is the study of metamorphism. Metamorphic petrologists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Peninsula
The Upper Peninsula of Michigan—also known as Upper Michigan or colloquially the U.P. or Yoop—is the northern and more elevated of the two major landmasses that make up the U.S. state of Michigan; it is separated from the Lower Peninsula by the Straits of Mackinac. It is bounded primarily by Lake Superior to the north, separated from the Canadian province of Ontario at the east end by the St. Marys River, and flanked by Lake Huron and Lake Michigan along much of its south. Although the peninsula extends as a geographic feature into the state of Wisconsin, the state boundary follows the Montreal and Menominee rivers and a line connecting them. First inhabited by Algonquian-speaking native American tribes, the area was explored by French colonists, then occupied by British forces, before being ceded to the newly established United States in the late 18th century. After being assigned to various territorial jurisdictions, it was granted to the newly formed state of Michigan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precambrian
The Precambrian ( ; or pre-Cambrian, sometimes abbreviated pC, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinized name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time. The Precambrian is an informal unit of geologic time, subdivided into three eons ( Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago ( Ga) to the beginning of the Cambrian Period, about million years ago ( Ma), when hard-shelled creatures first appeared in abundance. Overview Relatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards. The Precambrian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight into their history of formation. Geology determines the relative ages of rocks found at a given location; geochemistry (a branch of geology) determines their absolute ages. By combining various petrological, crystallographic, and paleontological tools, geologists are able to chronicle the geological history of the Earth as a whole. One aspect is to demonstrate the age of the Earth. Geology provides evidence for plate tectonics, the ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado Outbreak Of April 21, 1967
A destructive tornado outbreak affected much of the Midwestern United States on April 21, 1967, in particular the towns of Belvidere and Oak Lawn, Illinois, United States. It was the largest tornado outbreak of 1967 and has been described by NWS Chicago as "Northern Illinois' worst tornado disaster". The outbreak produced numerous and significant (F2+) tornadoes, with ten of them in Illinois alone. Included was one of just six documented violent (F4/F5) tornadoes in the Chicago metropolitan area since the area was first settled. Meteorological synopsis April 21, 1967 was a warm Friday afternoon in northern Illinois. Following a foggy morning with temperatures in the middle 50s °F, temperatures rose rapidly in the afternoon as low geopotential heights approached from the southwest. A warm front—part of a very deep shortwave trough—passed through Illinois all day and by afternoon moved north of the state. As a low-pressure area within an extratropical cyclone approached the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oak Lawn, Illinois
Oak Lawn is a Village (Illinois), village in Cook County, Illinois, United States. The population was 58,362 at the 2020 United States census, 2020 census. Oak Lawn is a suburb of Chicago, located southwest of the city. It shares borders with the city in two areas but is surrounded mostly by other suburbs. History Founding In August 1835, James B. Campbell purchased the land stretching between Cicero Avenue and Central Avenue from 95th Street (Chicago), 95th Street to 103rd Street. It is unclear what Campbell's intentions with the area were, but by 1840, he had lost a court battle with the Illinois State Bank and his land was sold in a public auction. John Simpson, a prominent figure in early Oak Lawn history, bought the northern half of the property in 1842. By 1859, the recently incorporated government of Worth Township, Cook County, Illinois, Worth Township paid for the construction of Black Oak Grove Road, an early name for 95th Street. Black Oak Grove is also the earliest kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hometown, Illinois
Hometown is a city in Cook County, Illinois, United States. The population was 4,343 at the 2020 census. History Joseph E. Merrion developed inexpensive duplex houses in Hometown after World War II, targeting former GIs and their families. Hometown incorporated in 1953, and its population peaked at over 7,000 in 1958. On April 21, 1967, an F4/F5 rated tornado tore through Hometown, devastating the area, and destroying 86 homes while damaging 500 others. Geography According to the 2021 census gazetteer files, Hometown has a total area of , all land. Hometown borders the city of Chicago along 87th Street between Cicero Avenue and Pulaski Road. The town's southern border is located one-half mile south of 87th, where 91st Street would be. Demographics As of the 2020 census there were 4,343 people, 1,745 households, and 955 families residing in the city. The population density was . There were 1,945 housing units at an average density of . The racial makeup of the city was 73 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Star-News
''StarNews'' is an American, English language daily newspaper for Wilmington, North Carolina, and its surrounding area (known as the Lower Cape Fear (region), Cape Fear). It is North Carolina's oldest newspaper in continuous publication. It was owned by Halifax Media Group until 2015, when Halifax was acquired by New Media Investment Group. New Media merged with Gannett in 2019, and the combined company took the Gannett name. The ''StarNews'' covers a three-county region in Southeastern North Carolina: New Hanover County, North Carolina, New Hanover, Brunswick County, North Carolina, Brunswick and Pender County, North Carolina, Pender. History The paper was originally published on September 23, 1867, as the ''Wilmington Evening Star'' by former Confederate States of America, Confederate Major William H. Bernard. Shortly after first publishing the paper, Bernard changed the paper to come out in the morning and changed the paper name to the ''Wilmington Morning Star''. "[I]t was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longview Daily News
''The Daily News'' is a newspaper covering Longview, Kelso, Washington, and Cowlitz County, Washington in the United States. Apart from a brief period in the 1990s when, prior to ceasing publication, the ''Cowlitz County Advocate'' was published in Longview, the ''Daily News'' has been Longview's only newspaper since its inception. History Ralph Tennal published the first issue of ''The Longview News'' on Jan. 27, 1923. The paper was financed by Robert A. Long, a lumber magnate who was president of Long-Bell Lumber Company and founded the city of Longview. Tennal quit after a few months and Long hired John Morgan McClelland Sr. to replace him as the paper's editor. On April 2, 1923, ''The Longview News'' began publishing daily and was renamed to ''The Longview Daily News,'' and then ''The Daily News.'' McClelland partnered with Long to create the Longview Publishing Company and purchase the newspaper from the Long-Bell Lumber Company in 1925. McClelland Sr. retired in 1955 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Chicago Medical Center
The University of Chicago Medical Center, branded as UChicago Medicine, is a nationally ranked academic medical center located in Hyde Park, Chicago, Hyde Park on the South Side, Chicago, South Side of Chicago. It is the flagship campus for The University of Chicago Medicine system and was established in 1898. Affiliated with and located on the University of Chicago campus, it also serves as the teaching hospital for Pritzker School of Medicine. Primary medical facilities on campus include the Center for Care and Discovery, Bernard A. Mitchell Hospital, and Comer Children's Hospital. About UChicago Medicine comprises The University of Chicago Pritzker School of Medicine; The University of Chicago Biological Sciences Division, a section committed to scientific discovery; and The University of Chicago Medical Center. Twelve Nobel Prize winners in physiology or medicine have been affiliated with The University of Chicago Medicine. University of Chicago Medicine physicians are memb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
