South Ellwood Oil Field
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South Ellwood Oil Field
Ellwood Oil Field (also spelled "Elwood") and South Ellwood Offshore Oil Field are a pair of adjacent, partially active oil fields adjoining the city of Goleta, California, about west of Santa Barbara, largely in the Santa Barbara Channel. A richly productive field in the 1930s, the Ellwood Oil Field was important to the economic development of the Santa Barbara area. A Japanese submarine shelled the area during World War II. It was the first direct naval bombardment of the continentital U.S. since the Civil War, causing an invasion scare on the West Coast. Setting The Ellwood Oil Field is located approximately west of the city of Santa Barbara, beginning at the western boundary of the city of Goleta, proceeding west into the Pacific and then back onshore near Dos Pueblos Ranch. The onshore portions of the field include beach, coastal bluffs, blufftop grasslands, and eucalyptus groves. Some of the former oil field is now part of the Ellwood-Devereux Open Space, mainta ...
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Anticline
In structural geology, an anticline is a type of fold that is an arch-like shape and has its oldest beds at its core, whereas a syncline is the inverse of an anticline. A typical anticline is convex up in which the hinge or crest is the location where the curvature is greatest, and the limbs are the sides of the fold that dip away from the hinge. Anticlines can be recognized and differentiated from antiforms by a sequence of rock layers that become progressively older toward the center of the fold. Therefore, if age relationships between various rock strata are unknown, the term antiform should be used. The progressing age of the rock strata towards the core and uplifted center, are the trademark indications for evidence of anticlines on a geologic map. These formations occur because anticlinal ridges typically develop above thrust faults during crustal deformations. The uplifted core of the fold causes compression of strata that preferentially erodes to a deeper st ...
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14 Cm/40 11th Year Type Naval Gun
The 14 cm/40 11th Year Type naval gun was the standard surface battery for Japanese submarine cruisers of World War II. Most carried single guns, but Junsen type submarines carried two. Japanese submarines ''I-7'' and ''I-8'' carried an unusual twin mounting capable of elevating to 40°. The appended designation ''11th year type'' refers to the horizontal sliding breech block on these guns. Breech block design began in 1922, or the eleventh year of the Taishō period in the Japanese calendar. The gun fired a projectile in diameter, and the barrel was 40 calibers long (barrel length is 14 cm x 40 = 560 centimeters or 220 inches). World War II This gun was the weapon used by ''I-17'' to sink ''SS Emidio'' and to later shell the Ellwood Oil Field near Santa Barbara, California. It was also used by ''I-25'' for the Bombardment of Fort Stevens in Oregon near the mouth of the Columbia River and by ''I-26'' to shell the Estevan Point lighthouse in British Columbia ...
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Japanese Submarine I-17
''I-17'' was a Japanese B1 type submarine of the Imperial Japanese Navy which saw service during World War II. This long-range submarine cruiser spent the early months of the war in the eastern Pacific and was the first Axis ship to shell the continental United States. She later supported the Imperial Japanese Army in fighting around the Solomon Islands and remained active in the southwest Pacific until she was sunk in August 1943. Service Pearl Harbor During the attack on Pearl Harbor on 7 December 1941, ''I-17'' patrolled north of Oahu. Its mission was to reconnoiter and engage any ships that tried to sortie from Pearl Harbor.Tabular Record of MovementHIJMS Submarine I-17/ref> ''I-17'' proceeded to a patrol station off Cape Mendocino following the attack on Pearl Harbor. The 6,912-ton General Petroleum tanker was sailing in ballast from Seattle, Washington en route to San Pedro, California. ''I-17'' hit the tanker with five shells in the early afternoon of 20 December 19 ...
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Prickly Pear Cactus
''Opuntia'', commonly called prickly pear or pear cactus, is a genus of flowering plants in the cactus family Cactaceae. Prickly pears are also known as ''tuna'' (fruit), ''sabra'', ''nopal'' (paddle, plural ''nopales'') from the Nahuatl word for the pads, or nostle, from the Nahuatl word for the fruit; or paddle cactus. The genus is named for the Ancient Greek city of Opus, where, according to Theophrastus, an edible plant grew and could be propagated by rooting its leaves. The most common culinary species is the Indian fig opuntia (''O. ficus-indica''). Description ''O. ficus-indica'' is a large, trunk-forming, segmented cactus that may grow to with a crown of over in diameter and a trunk diameter of . Cladodes (large pads) are green to blue-green, bearing few spines up to or may be spineless. Prickly pears typically grow with flat, rounded cladodes (also called platyclades) containing large, smooth, fixed spines and small, hairlike prickles called glochids that ...
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Mesa Oil Field
The Mesa Oil Field is an abandoned oil field entirely within the city limits of Santa Barbara, California, in the United States. Discovered in 1929, it was quickly developed and quickly declined, as it proved to be but a relatively small accumulation of oil in a single geologic formation. While the field was active in the 1930s, residential development in most of the Mesa neighborhood of Santa Barbara came to a halt. The field included two major productive areas with a total surface extent of only , and produced of oil during its brief lifetime. p. 95.Dolman, S.G. ''Mesa Oil Field: California Division of Oil and Gas, Summary of Operations''. 1938. Vol. 24 No. 2. p. 5-14. Available tp://ftp.consrv.ca.gov/pub/oil/Summary_of_Operations/1938/Vol24No2.pdf here Geographic setting The field occupied a small area on a mesa to the west of the Santa Barbara Harbor, within the limits of the City of Santa Barbara, now the location of the neighborhood known as "The Mesa". The mesa from whic ...
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Monterey Formation
The Monterey Formation is an extensive Miocene oil-rich geological sedimentary formation in California, with outcrops of the formation in parts of the California Coast Ranges, Peninsular Ranges, and on some of California's off-shore islands. The type locality is near the city of Monterey, California. The Monterey Formation is the major source-rock for 37 to 38 billion barrels of oil in conventional traps such as sandstones. This is most of California's known oil resources. The Monterey has been extensively investigated and mapped for petroleum potential, and is of major importance for understanding the complex geological history of California. Its rocks are mostly highly siliceous strata that vary greatly in composition, stratigraphy, and tectono-stratigraphic history. The US Energy Information Administration (EIA) estimated in 2014 that the 1,750 square mile Monterey Formation could, as an unconventional resource, yield about 600 million barrels of oil, from ...
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API Gravity
The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks. API gravity is thus an inverse measure of a petroleum liquid's density relative to that of water (also known as specific gravity). It is used to compare densities of petroleum liquids. For example, if one petroleum liquid is less dense than another, it has a greater API gravity. Although API gravity is mathematically a dimensionless quantity (see the formula below), it is referred to as being in 'degrees'. API gravity is graduated in degrees on a hydrometer instrument. API gravity values of most petroleum liquids fall between 10 and 70 degrees. In 1916, the U.S. National Bureau of Standards accepted the Baumé scale, which had been developed in France in 1768, as the U.S. standard for measuring the specific gravity of liquids less den ...
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Sweet Crude Oil
Sweet crude oil is a type of petroleum. The New York Mercantile Exchange designates petroleum with less than 0.5% sulfur as ''sweet''. Petroleum containing higher levels of sulfur is called sour crude oil. Sweet crude oil contains small amounts of hydrogen sulfide and carbon dioxide. High-quality, low-sulfur crude oil is commonly used for processing into gasoline and is in high demand, particularly in industrialized nations. ''Light sweet crude oil'' is the most sought-after version of crude oil as it contains a disproportionately large fraction that is directly processed (fractionation) into gasoline (naphtha), kerosene, and high-quality diesel (gas oil). The term ''sweet'' originates from the fact that a low level of sulfur provides the oil with a relatively sweet taste and pleasant smell, compared to sulfurous oil. Nineteenth-century prospectors would taste and smell small quantities of oil to determine its quality. Producers Producers of sweet crude oil include: * Asia/ ...
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Light Crude Oil
Light crude oil is liquid petroleum that has a low density and flows freely at room temperature. It has a low viscosity, low specific gravity and high API gravity due to the presence of a high proportion of light hydrocarbon fractions. It generally has a low wax content. Light crude oil receives a higher price than heavy crude oil on commodity markets because it produces a higher percentage of gasoline and diesel fuel when converted into products by an oil refinery. Varying standards The clear cut definition of ''light'' and ''heavy'' crude varies because the classification is based more on practical grounds than theoretical. The New York Mercantile Exchange (NYMEX) defines light crude oil for domestic U.S. oil as having an API gravity between 37° API (840 kg/m3) and 42° API (816 kg/m3), while it defines light crude oil for non-U.S. oil as being between 32° API (865 kg/m3) and 42° API (816 kg/m3). The National Energy Board of Canada defines light crude oil as having a density ...
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