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Topic: Los Angeles Basin


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In the News (Thu 26 Nov 09)

  
  Britain.tv Wikipedia - Los Angeles Basin
The Los Angeles Basin is the coastal sediment-filled plain located between the peninsular and transverse ranges in southern California in the United States containing the central part of the city of Los Angeles as well as its southern and southeastern suburbs (both in Los Angeles and Orange counties).
The basin began to form during the Neogene approximately 15 million years ago (mya), when the terrain was underwater, during a crustal upheaval caused by a clockwise shift in the surrounding mountains.
The sedimentary character of the basin is the principal reason why it is considered especially susceptible to excessive damage during earthquakes.
www.britain.tv /wikipedia.php?title=Los_Angeles_Basin   (363 words)

  
 Los Angeles Basin - Wikipedia, the free encyclopedia
The Palos Verdes Peninsula, formerly an island, marks the outer edge of the basin along the coast.
Approximately 5 million years ago, the crustal stretching subsided and the ocean floor of the basin was forced to the surface.
The basin is often compared by geologists to a "a bowl of jelly" that can shake violently when driven by seismic activity.
en.wikipedia.org /wiki/Los_Angeles_Basin   (378 words)

  
 [No title]   (Site not responding. Last check: 2007-10-12)
Surface displacement in the Los Angeles region is primarily due to the tectonic activity.
For example, the concentric rings visible along the western edge of the SAR swath is the result of the surface uplift produced by the M6.7 Northridge earthquake of January 17, 1994.
Ground subsidence in the Los Angeles basin is usually associated with oil or water withdrawal.
www-radar.jpl.nasa.gov /sect323/InSar4crust/LosAngeles.html   (471 words)

  
 Los Angeles travel guide - Wikitravel   (Site not responding. Last check: 2007-10-12)
The Los Angeles metropolitan area is the second largest in the U.S. The amazingly diverse city is most famous for Hollywood, Universal City, and Downtown.
The Los Angeles metro area has been a "boom town" since the completion of the transcontinental railroad in 1876, first attracting "the folks" from the Midwest with a blessedly warm and dry climate-- and then becoming a gateway to a magnificent diversity of immigration from throughout the Pacific Rim and Latin America.
Los Angeles is similar to other major metropolitan areas in that travel within certain parts of the city at night should be conducted with caution and only in groups.
wikitravel.org /en/Los_Angeles   (5852 words)

  
 Los Angeles   (Site not responding. Last check: 2007-10-12)
Los Angeles was founded by 44 Spanish speaking settlers in 1781, and a century later there were 11 183 residents.
In this fourth stage the people of Los Angeles have been subjected to the cumulative effects of 50 years of sprawl: extreme distances, time delays, social ghettoisation and alienation, environmental pollution and cars with coffee holders for when residents are caught in the freeway gridlock.
Unionisation in Los Angeles county dropped from 30% to 23% and in Orange County the decline was from 26.4% to 10.5% (Castells,1989:219).
hsc.csu.edu.au /pta/gtansw/publications/archive/la96.html   (7693 words)

  
 Los Angeles, California - Wikipedia, the free encyclopedia
Los Angeles, known as "L.A." or the "City of Angels", is the most populous city in the state of California and the second-most in the United States.
Los Angeles is also home to the largest populations of Japanese and Persians living in the U.S., and has one of the largest Native American populations in the country.
Residents of the unincorporated areas of Los Angeles County and various cities within the county are served by the County of Los Angeles Public Library The LAPL is funded by voter-approved bond and tax levy packages.
en.wikipedia.org /wiki/Los_Angeles   (6786 words)

  
 Crustal Deformation Across and Beyond the Los Angeles Basin from Geodetic Measurements
The greater Los Angeles region continues to challenge the research community because it is tectonically complex and subject to perilous seismic hazards.
Geological studies show the Los Angeles basin to be a deep sedimentary basin at the junction of the northern Peninsular Ranges and the central Transverse Ranges.
The maximum shear strain rates are relatively low in the Los Angeles basin and the San Fernando valley; the maximum convergence rates are low at the center of the San Gabriel Mountains, San Fernando valley, and south of the Los Angeles basin.
scec.ess.ucla.edu /~zshen/labs/labs.html   (11655 words)

  
 New Earthquake Fault Discovered Under Los Angeles
"Los Angeles is caught in a vise," says John Shaw, an assistant professor of structural and economic geology at Harvard.
Motion along the faults appears to be shortening or contracting the Los Angeles basin an estimated quarter inch (7-8 millimeters) per year.
Few people are aware of it, but the Los Angeles basin was once one of the most prolific oil fields in the world.
www.news.harvard.edu /gazette/1999/03.04/earthquake.html   (1182 words)

  
 basin history
The Los Angeles Basin is a narrow, deep basin containing large oil fields.
We suggest that, although the basin is in a predominantly strike-slip tectonic environment, the subsidence is largely a result of crustal extension.
The average crustal extension for the whole basin is 66%.
www.geology.uiuc.edu /~hsui/geodynamics/basin_history.htm   (205 words)

  
 Los Angeles Photos - Pictures and Posters from California
Los Angeles is one of the biggest cities in the world.
The Los Angeles basin is a diverse area like no place else on the planet.
The Los Angeles Marathon Mural is located in Downtown LA on the 110 freeway and we show it in a photograph.
www.laphotos.com   (1892 words)

  
 SEMP - Infamous New Year’s Day Flood, Los Angeles Basin,1934
Ironically, the Los Angeles Times newspaper delivered a promotional insert on January 2, 1934, cheerfully describing the beauty of the foothill cities where “olive-canning and berry-raising” were the chief industries, and some of the most beautiful homes and estates in all Los Angeles were located.
His approach involved construction of 1) debris basins, 2) large flood control basins, and 3) stream channels both deepened and lined with beauteous re-enforced concrete to enable floodwaters to be transported to the ocean as quickly as possible.
Human settlement of the Los Angeles basin, which began to increase dramatically after California became a state in 1848, has continuously outstripped the ability of the rivers and the Mediterranean terrain and climate to provide for the perceived water needs of residents.
www.semp.us /biots/biot_365.html   (3625 words)

  
 The Los Angeles Basin - A Huge Bowl of Sand
The point where the Los Angeles and Rio Hondo Rivers merge in the City of South Gate is a geologic center for the Los Angeles Basin.
It is the approximately location of where the sand, silt and clay of the Los Angeles Basin extend the deepest.
In effect, Los Angeles has not been "falling into the sea," as popularly believed, but rather rising from the ocean.
www.laalmanac.com /geography/ge08e.htm   (378 words)

  
 SEMP - Los Angeles Basin's 1938 Catastrophic Flood Event
The catastrophic 1938 Los Angeles flood event began with a Pacific Ocean storm that moved inland across the basin toward the towering San Gabriel Mountains, deluging the area with 4.40 inches of rain on February 27-28, and the early morning hours of March 1, 1938.
The Los Angeles area was all but isolated from the outside world when the three transcontinental railroads servicing the Los Angeles area stopped operations because of bridge washouts and flooded lines.
The Los Angeles River was already taxed heavily with the natural run-off from the upper San Fernando Valley, the north slope of the Santa Monica Mountains and the Santa Susanna Mountains rimming the valley.
www.semp.us /biots/biot_369.html   (2442 words)

  
 SIR-C/X-SAR image Los Angeles basin   (Site not responding. Last check: 2007-10-12)
This is a radar image of Los Angeles, California, taken on October 2, 1994.
Visible in the image are Long Beach Harbor at the bottom right (south corner of the image), Los Angeles International Airport at the bottom center, with Santa Monica just to the left of it and the Hollywood Hills to the left of Santa Monica.
Suburban areas, with the low-density housing and tree-lined streets that are typical of Los Angeles, appear as lighter grey.
southport.jpl.nasa.gov /pio/srl2/sirc/srl2-la.html   (346 words)

  
 los angeles basin   (Site not responding. Last check: 2007-10-12)
The Los Angeles Basin is the largest lowland area in California that directly fronts the ocean.
During the boom of the 1880s, the population of Los Angeles swelled from 11,000 to 50,000.
Construction of a huge breakwater along the harbor at San Pedro began in 1899 and was later extended to protect the combined harbors of San Pedro and Long Beach.
www.californiahistory.net /1pys/labasin.htm   (124 words)

  
 Wild Southern California -- Evolution of the Los Angeles Basin
At this time, the climate in the L.A. basin was different from what we have today; for one thing, there was probably twice as much rain.
At the end of the Pleistocene, perhaps some 12,000 years ago, the climate changed abruptly to become hotter and drier, and went on getting dryer until the time of what paleoclimatologists call the Altithermal -- the peak of the current interglacial when temperatures were at their hottest.
But as the climate cooled, the basin took on the form that the ancestors of the Gabrielino Indians saw when they first entered the Los Angeles plain.
www.wearesites.com /Personal/Wildsc/laevolution.shtml   (551 words)

  
 DFG News: Great Opportunities Await Anglers in the Los Angeles Basin's Lake Piru   (Site not responding. Last check: 2007-10-12)
SACRAMENTO - Millions of people reside in the giant megalopolis known as the Los Angeles Basin, many of whom get so caught up in the overcrowded lifestyle there, that any concept of the great outdoors can seem very far away.
Located at 1,055 feet in the Los Padres National Forest, the lake was created by damming Piru Creek in 1955.
The 1,200-acre lake with steep shorelines offers superb rainbow trout fishing in the winter months and a chance at catching other species such as channel catfish and largemouth bass with an outside shot at hooking a bluegill or crappie.
www.dfg.ca.gov /news/news02/02009.html   (592 words)

  
 Los Angeles Region Basin Depth Map
Two important local geologic factors that affect the level of shaking experienced in earthquakes are (1) the softness of the surface rocks and (2) the thickness of surface sediments.
This image of the Los Angeles region shows the depth of sedimentary basins.
A basin depth calculator can be used to determine this thickness under specific areas of southern California.
www.scec.org /phase3/basinmap.html   (84 words)

  
 LARWQCB Basin Plan   (Site not responding. Last check: 2007-10-12)
Specifically, the Basin Plan (i) designates beneficial uses for surface and ground waters, (ii) sets narrative and numerical objectives that must be attained or maintained to protect the designated beneficial uses and conform to the state's antidegradation policy, and (iii) describes implementation programs to protect all waters in the Region.
The Basin Plan is a resource for the Regional Board and others who use water and/or discharge wastewater in the Los Angeles Region.
Following adoption by the Regional Board, the Basin Plan and subsequent amendments are subject to approval by the State Board, the State Office of Administrative Law (OAL), and the United States Environmental Protection Agency (USEPA).
www.swrcb.ca.gov /~rwqcb4/html/meetings/tmdl/Basin_plan/basin_plan.html   (269 words)

  
 Gabrieleno/Tongva Band of Mission Indians of San Gabriel
The Tongva occupied the entire Los Angeles basin and the islands of Santa Catalina, San Nicholas, San Clemente, and Santa Barbara.
From Topanga Canyon to Laguna Beach, from the San Gabriel mountains to the sea, we lived throughout most of what is now Los Angeles and Orange Counties.
Our existence is preserved in records of the three local Catholic missions and in records of local cities and both Los Angeles and Orange Counties.
www.tongva.com   (261 words)

  
 Los Angeles
The office's litigators and business lawyers provide legal representation and counsel to the industries and businesses that have fueled the Los Angeles basin's historic and continued growth: the entertainment and biotech industries, pharmaceutical and medical device manufacturers, high-tech and Internet start-ups, automotive and accounting firms, and beverage and food companies.
Please contact Los Angeles Market Managing Partner Peter Kennedy at 213-457-8062 to identify the right lawyer for your legal needs.
Continue on the Century Freeway to the Harbor Freeway [110 FWY] North to Los Angeles.
www.reedsmith.com /about_us/offices/los_angeles.cfm   (395 words)

  
 Los Angeles Air Force Base Home Page   (Site not responding. Last check: 2007-10-12)
Welcome to our Southern California Community and Los Angeles Air Force Base, Ca., where the 61st Air Base Group is the host unit.
The support facilities of the 61st Air Base Group are available for active duty and retired military members and their families who reside in the Los Angeles basin.
This site is dedicated to highlighting the value of Los Angeles Air Force Base to the South Bay and, in turn, all that the South Bay and California has to offer base members.
www.losangelesafb.com   (295 words)

  
 THE WHITTIER FAULT TREND: CROSS SECTIONS, STRUCTURE MAPS, AND WELL TOPS IN THE MAJOR OIL PRODUCING AREA OF THE ...
Understanding the deep structure of the Los Angeles basin is critical to the assessment of the seismic hazard as well as the future petroleum potential in one of the most densely populated regions in the United States.
In the center of the basin, that deep structure is hardly known because over 6.4 km of Pliocene and younger rocks have buried the rocks that record the early history of the basin.
Fortunately, just 50 km to the east, evidence of the character of the structure of the deep Los Angeles basin is accessible in the outcrops and wells of the Puente Hills area of the northeastern Los Angeles basin (NELAB).
www.searchanddiscovery.com /documents/whittier/index.htm   (679 words)

  
 CSU | Analytic Studies | CSU Los Angeles Basin Project   (Site not responding. Last check: 2007-10-12)
The campus-specific maps provided herein illustrate commute times for travel to CSU campuses located in the greater Los Angeles Basin.
The eight campuses are: Channel Islands, Dominguez Hills, Fullerton, Long Beach, Los Angeles, Northridge, Pomona, and San Bernardino.
Aggregated numbers for California public high schools that show proximity to CSU campuses, annual number of high school graduates, and average number of high school graduates per year that become CSU first-time freshmen by CSU campus: fall 1999 to 2005.
www.asd.calstate.edu /labasin/index.shtml   (270 words)

  
 Age and Tectonic Significance of Volcanic Rocks in the Northern Los Angeles Basin, California   (Site not responding. Last check: 2007-10-12)
Volcanic rocks, mostly basalts and some andesites, are interbedded with middle Miocene strata and are overlain by younger rocks throughout the greater part of the Los Angeles Basin, California.
Los Angeles Basin volcanic rocks have special meaning because they offer clues to tectonomagmatic events associated with onset of clockwise transrotation of the western Transverse Ranges region and to the timing and locus of the initial basin opening.
A whole-rock determination of 17.2±0.5 Ma for nearby altered olivine basalt in the unfossiliferous Glendora volcanic sequence is questionable because of a complex 40Ar/39Ar age spectrum suggestive of 39Ar recoil, but it may indicate an older volcanic unit in this eastern area.
geopubs.wr.usgs.gov /prof-paper/pp1669   (493 words)

  
 ICBO LA Basin Chapter - Chapter Awards
he Los Angeles Regional Uniform Code Program was selected as one of the winners of the City of Los Angeles Productivity Improvement Award in November 1999.
This is the highest award of its kind in Los Angeles County.
The Los Angeles Basin Chapter was recognized during the 1999 Joint Annual Conference in St. Louis, Missouri.
www.icbolabc.org /awards.htm   (505 words)

  
 Mountain Meadows Dacite: Oligocene Intrusive Complex That Welds Together the Los Angeles Basin, Northwestern Peninsular ...   (Site not responding. Last check: 2007-10-12)
Dikes and irregular intrusive bodies of distinctive Oligocene biotite dacite and serially related hornblende latite and felsite occur widely in the central and eastern San Gabriel Mountains, southern California, and are related to the Telegraph Peak granodiorite pluton.
Identical dacite is locally present beneath Middle Miocene Topanga Group Glendora Volcanics at the northeastern edge of the Los Angeles Basin, where it is termed Mountain Meadows Dacite.
Transported and redeposited clasts of dacite-latite occur in deformed lower Miocene and lower middle Miocene sandy conglomerates (nonmarine, nearshore, and infrequent upper bathyal) close to the northern and northeastern margins of the Los Angeles Basin for a distance of nearly 60 km.
geopubs.wr.usgs.gov /prof-paper/pp1649   (510 words)

  
 Region to Step Up War Against Smog - Los Angeles Times   (Site not responding. Last check: 2007-10-12)
New regulations and fees on development, boats and jet-skis are sought under an AQMD plan to reduce pollutants by 50% in 10 years.
Figures compiled by the California Air Resources Board show 6,500 premature deaths annually from smog and soot-related exposure, 1.7 million cases of respiratory illness and 2.8 million lost work days, with an average 60% of those effects in the Los Angeles Basin.
Wallerstein said that despite an average $5 billion to $8 billion spent to carry out regional air quality plans in recent decades, Los Angeles last summer again led the nation in smoggy days.
www.latimes.com /news/local/la-me-air11oct11,0,2057943.story?coll=la-home-local   (1154 words)

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