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Sag Pond
A sag pond is a body of fresh water collected in the lowest parts of a depression formed between two sides of an active strike-slip, transtensional or normal fault zone. Formation A sag pond is formed along a strike-slip fault, which may create a depression in the earth. When water enters the depression from rivers, streams, rainfall or snowfall, it fills the low-lying area, and a pond is the result. Scientific significance Sag pond formation is common in California, and many of them can be found on the San Andreas Fault, which runs through the western part of the state. Aerial photography or high-resolution topography can easily determine their locations. Uses Sag ponds have been converted into stock reservoirs. Larger sag ponds are converted into reservoirs for public water sources, such as San Andreas Lake Examples Sag ponds of various sizes can be found along the San Andreas Fault, most notably within the Carrizo Plain and Sierra Pelona Mountains. Some have been convert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elizabeth Lake-kmf
Elizabeth or Elisabeth may refer to: People * Elizabeth (given name), a female given name (including people with that name) * Empress Elisabeth (other), lists various empresses named ''Elisabeth'' or ''Elizabeth'' * Princess Elizabeth (other), lists various princesses named ''Elizabeth'' * Queen Elizabeth (other), lists various queens named ''Elizabeth'' * Saint Elizabeth (other), lists various saints named ''Elizabeth'' or ''Elisabeth'' ** Elizabeth (biblical figure), mother of John the Baptist Film and television * ''Elizabeth R'', 1971 * ''Elizabeth'' (TV series), 1980 * ''Elizabeth'' (film), 1998 * '' Elizabeth: The Golden Age'', 2007 Music * ''Elisabeth'' (Elisabeth Andreassen album) * ''Elisabeth'' (Zach Bryan album) * Elizabeth (band), an American psychedelic rock/progressive rock band active from 1967 to 1970 * ''Elizabeth'' (Lisa album) * ''Elizabeth'', an album by Killah Priest * "Elizabeth" (Ghost song) * "Elizabeth" (The S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra Pelona Mountains
The Sierra Pelona, also known as the Sierra Pelona Ridge or the Sierra Pelona Mountains and originally known as the Liebre Mountains, is a mountain ridge in the Transverse Ranges in Southern California. Located in northwest Los Angeles County, the ridge is bordered on the north by the San Andreas Fault and lies within and is surrounded by the Angeles National Forest and a tiny section in the Los Padres National Forest Geography The Sierra Pelona Mountains lie northwest of the San Gabriel Mountains, which are divided by the wide Soledad Canyon formation. The mountains are flanked to the south by the Santa Clarita Valley and separated from the Antelope Valley and the Mojave Desert to the north by the San Andreas Fault. Toward the southeast lie Vasquez Rocks, thrust up by the fault. Toward the west lies Interstate 5, Pyramid Lake, and the Los Padres National Forest. The range has a small extension west of I-5. The Tejon Pass separates the Sierra Pelonas, the San Emigdios, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depressions (geology)
Depression may refer to: Mental health * Depression (mood), a state of low mood and aversion to activity * Mood disorders characterized by depression are commonly referred to as simply ''depression'', including: ** Major depressive disorder, also known as ''clinical depression'' ** Bipolar disorder, also known as ''manic depression'' ** Dysthymia, also known as ''persistent depressive disorder'' Economics * Economic depression, a sustained, long-term downturn in economic activity in one or more economies ** Great Depression The Great Depression was a severe global economic downturn from 1929 to 1939. The period was characterized by high rates of unemployment and poverty, drastic reductions in industrial production and international trade, and widespread bank and ..., a severe economic depression during the 1930s, commonly referred to as simply ''the Depression'' ** Long Depression, an economic depression during 1873–96, known at the time as the ''Great Depression'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graben
In geology, a graben () is a depression (geology), depressed block of the Crust (geology), crust of a planet or moon, bordered by parallel normal faults. Etymology ''Graben'' is a loan word from German language, German, meaning 'ditch' or 'trench'. The first known usage of the word in the geologic context was by Eduard Suess in 1883. The plural form is either ''graben'' or ''grabens''. Formation A graben is a valley with a distinct escarpment on each side caused by the displacement of a block of land downward. Graben often occur side by side with Horst (geology), horsts. Horst and graben structures indicate tensional forces and crustal stretching. Graben are produced by sets of normal faults that have parallel fault traces, where the displacement of the hanging wall is downward, while that of the footwall is upward. The faults typically dip toward the center of the graben from both sides. Horsts are parallel blocks that remain between graben; the bounding faults of a horst t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azores
The Azores ( , , ; , ), officially the Autonomous Region of the Azores (), is one of the two autonomous regions of Portugal (along with Madeira). It is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atlantic Ocean, about west of Lisbon, about northwest of Morocco, about southeast of Newfoundland, Canada, and the same distance southwest of Cork, Ireland. Its main industries are agriculture, dairy farming, livestock, fishing, and tourism, which has become a major service activity in the region. In the 20th century and to some extent into the 21st, they have served as a waypoint for refueling aircraft flying between Europe and North America. The government of the Azores employs a large percentage of the population directly or indirectly in the service and tertiary sectors. The largest city of the Azores is Ponta Delgada. The culture, dialect, cuisine, and traditions of the Azorean islands vary considerably, because these remote island ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pico Island
Pico Island (''Ilha do Pico,'' ) is an island in the Central Group, Azores, Central Group of the Portugal, Portuguese Azores. The landscape features an eponymous volcano, Mount Pico, Ponta do Pico, which is the highest mountain in Portugal, the Azores, and the highest elevation of the Mid-Atlantic Ridge. In the tradition of the Portuguese poet, Raul Brandão, Pico is referred to as the ''Ilha Preta'' ("Black Island"), for its black volcanic soils, which nourish its UNESCO-designated vineyards that once allowed the development of the island's economy. Pico is the second largest and, geologically speaking, the most recently formed island of the Azores, being around 300,000 years old. History The exact date of the island's discovery is not known. However, in the 1375 Catalan Atlas, Pico is depicted along several other islands of the Azores, where it is labelled as ''li colunbj''. In Cristoforo Soligo's map from 1475, Pico is described both as Don (honorific), Dom Diniz (or São ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achada Plateau
The Achada Plateau (Portuguese language, Portuguese: ) is an extensive volcanic mountain range located on Pico Island, Azores. It is a protected area with many valuable features that characterize the Azorean landscape. It is included in two Natura 2000 sites, one of which is classified as an Important Bird Area. Part of the plateau also includes a ramsar wetland. It is one of the three main geomorphological units that comprise Pico Island. Location and geomorphology The Achada Plateau is located on the highlands of Pico Island, Pico, the highest and second largest island on the archipelago of the Azores. The extensive volcanic mountain range, located in the eastern half of the island at a mean altitude of , stretches from Lagoa do Capitão (northeast of Mount Pico) to the easternmost part of the island. It is characterized by the steep slopes that limit it to the south and north and by the presence in the axial zone of the range of various volcano-tectonic alignments of cinder c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Bruno, California
San Bruno () is a city in San Mateo County, California, United States, incorporated in 1914. The population was 43,908 at the 2020 United States census. The city is between South San Francisco, California, South San Francisco and Millbrae, California, Millbrae, adjacent to San Francisco International Airport and Golden Gate National Cemetery; it is approximately south of Financial District, San Francisco, Downtown San Francisco. Geography The city is located between South San Francisco and Millbrae, adjacent to San Francisco International Airport to the east and Golden Gate National Cemetery to the northwest. It is approximately south of Downtown San Francisco. According to the United States Census Bureau, the city has a total area of , all of it land. The city spreads from the mostly flat lowlands near San Francisco Bay into the foothills of the Santa Cruz Mountains, which rise to more than above sea level in Crestmoor and more than above sea level in Portola Highlands. Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Andreas Reservoir
San Andreas Lake is a reservoir adjacent to the San Francisco Peninsula cities of Millbrae and San Bruno in San Mateo County, California. It is situated directly on the San Andreas Fault, which is named after the valley it is in. History After discovering San Francisco Bay from Sweeney Ridge on November 4, 1769, the Portolá expedition descended what Portolá called the ''Cañada de San Francisco'', now San Andreas Creek, to camp in the vicinity of today's San Andreas Lake. The next day they reached a "Laguna Grande" which today is covered by the Upper Crystal Springs Reservoir. The campsite is marked by California Historical Marker No. 94 "Portola Expedition Camp", located at Crystal Springs Dam, on Skyline Boulevard, 0.1 mi south of Crystal Springs Road. They camped here a second time on November 12, on their return trip. Padre Palóu, on an expedition from Monterey to explore the western side of San Francisco Bay led by Captain Fernando Rivera y Moncada, renamed Po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrizo Plain
The Carrizo Plain ( Obispeño: ''tšɨłkukunɨtš'', "Place of the rabbits") is a large enclosed grassland plain, approximately long and up to across, in southeastern San Luis Obispo County, California, United States, about northwest of Los Angeles. The southern portion of the Carrizo Plain is within the Carrizo Plain National Monument, which also includes most of the Caliente Range. The Carrizo Plain is the largest single native grassland remaining in California. It includes Painted Rock in the Carrizo Plain Rock Art Discontiguous District, which is listed on the National Register of Historic Places. In 2012 it was further designated a National Historic Landmark due to its archeological value. The San Andreas Fault occurs along the eastern edge of the Carrizo Plain at the western base of the Temblor Range. Geography and geology The Carrizo Plain extends northwest from the town of Maricopa, following the San Andreas Fault. Bordering the plain to the northeast is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depression (geology)
In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms. Types Erosion-related: * Blowout (geomorphology), Blowout: a depression created by Aeolian processes, wind erosion typically in either a partially vegetated Dune, sand dune ecosystem or dry soils (such as a post-glacial loess environment). * Glacial valley: a depression carved by erosion by a glacier. * River valley: a depression carved by fluvial erosion by a river. * Area of subsidence caused by the collapse of an underlying structure, such as sinkholes in karst terrain. * Sink (geography), Sink: an endorheic depression generally containing a wikt:persistent, persistent or intermittent (seasonal) lake, a Salt pan (geology), salt flat (playa) or dry lake, or an ephemeral lake. * Panhole: a shallow depression or basin eroded into flat or gently sloping, cohesive rock.Twidale, C.R., and Bourne, J.A., 2018Rock basins (gnammas) revisited.''Géomorphologie: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Andreas Lake
San Andreas Lake is a reservoir adjacent to the San Francisco Peninsula cities of Millbrae and San Bruno in San Mateo County, California. It is situated directly on the San Andreas Fault, which is named after the valley it is in. History After discovering San Francisco Bay from Sweeney Ridge on November 4, 1769, the Portolá expedition descended what Portolá called the ''Cañada de San Francisco'', now San Andreas Creek, to camp in the vicinity of today's San Andreas Lake. The next day they reached a "Laguna Grande" which today is covered by the Upper Crystal Springs Reservoir. The campsite is marked by California Historical Marker No. 94 "Portola Expedition Camp", located at Crystal Springs Dam, on Skyline Boulevard, 0.1 mi south of Crystal Springs Road. They camped here a second time on November 12, on their return trip. Padre Palóu, on an expedition from Monterey to explore the western side of San Francisco Bay led by Captain Fernando Rivera y Moncada, renamed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
