Diamond
Diamond. You have to search carefully to find Diamond (pop. 5), but it's a little gem well worth discovering. This Eastern Oregon ranching village sits at the foot of gorgeous Steens Mountain and south of the tremendous Diamond Craters — an awesome 23-square-mile lava field. Grab a perch at Malheur National Wildlife Refuge for the sandhill ...
اقرأ أكثرDiamond Craters Facts for Kids
The Diamond Craters is a monogenetic volcanic field about 40 miles (64 km) southeast of Burns, Oregon.The field consists of a 27-square-mile (70 km 2) area of basaltic lava …
اقرأ أكثرBaily's beads
Baily's beads. The Baily's beads, diamond ring or more rarely double diamond ring effects, [1] are features of total and annular solar eclipses. Although caused by the same phenomenon, they are distinct events during these types of solar eclipses. As the Moon covers the Sun during a solar eclipse, the rugged topography of the lunar limb allows ...
اقرأ أكثرCraters of the Moon National Monument and Preserve
The Craters of the Moon Lava Field spreads across 618 square miles (1,601 km²) and is the largest mostly Holocene-aged basaltic lava field in the lower 48 U.S. states. The Monument and Preserve contain more than 25 volcanic cones, including outstanding examples of spatter cones. Sixty distinct lava flows form the Craters of the Moon Lava Field ranging …
اقرأ أكثرCrater of Diamonds State Park
Location: Pike County. Area: 911 acres. Located on State Highway 301 in Pike County, the Crater of Diamonds State Park contains the world's only diamond mine …
اقرأ أكثرCrater
A crater is a bowl-shaped depression, or hollowed-out area, produced by the impact of a meteorite, volcanic activity, or an explosion. Impact Craters. Craters produced by the collision of a meteorite with Earth (or another planet or moon) are called impact craters. The high-speed impact of a large meteorite compresses, or forces downward, a ...
اقرأ أكثرCrater | Encyclopedia
crater 1. General term for a circular, funnel-shaped depression, up to 1km in diameter, produced by volcanic processes by which gases, tephra, and lava are or have been ejected. Several types are recognized: a crater at the summit of a volcanic cone marks the site of magma degassing and ejection of material; a maar, often occupied by a lake, …
اقرأ أكثرImpact Craters on Earth
Earth's impact craters have been destroyed. What is left is a small preservation sample. The terrestrial record, however, is invaluable in the understanding of impact processes for it is theonly sourceof ground-truthdata onthe three-dimensional structural and lithological character of natural impact craters.
اقرأ أكثرAge and duration of volcanic activity at Diamond Craters, …
Diamond Craters is such a lava field. It covers about 70 km 2 in Harney County, southeastern Oregon (Fig. 1) (Russell, 1903, Peterson and Groh, 1964, Russell and Nicholls, 1987).Herein we report radiocarbon ages that bracket the age of eruptions to the time between about 6130 and 7790 years ago (calibrated years before present, cal …
اقرأ أكثرDiamond Craters Outstanding Natural Area
Diamond Craters, an Outstanding Natural Area of 17,000 acres (23 square miles), has some of the most diverse basaltic volcanic features in the nation clustered within a small, accessible area. The area displays an entire range of eruptions possible in basaltic volcanism. It was formed sometime in the past 25,000 years and now resembles a thin ...
اقرأ أكثرImpact crater
Identifying impact craters. One of the Kaali craters, in Estonia. The distinctive mark of an impact crater is the presence of rock which has undergone shock-metamorphic effects, shattered or melted rocks, and crystal deformations. [6] Examples: A layer of shattered rock under the floor of the crater.
اقرأ أكثرGlobal Volcanism Program | Diamond Craters
Diamond Craters volcanic field consists of a 70 km2 area of basaltic lava flows along with numerous cinder cones and maars located between the SE Oregon town of Burns and Steens Mountain. A basaltic pahoehoe lava field is overlain by deposits from phreatomagmatic and Strombolian eruptions that formed a late-stage central vent …
اقرأ أكثرDiamond
Diamond-bearing rock is brought close to the surface through deep-origin volcanic eruptions. The magma for such a volcano must originate at a depth where diamonds can be formed, 150 km (90 miles) deep or more (three …
اقرأ أكثرDiamond, Oregon
Diamond, Oregon. / 43.01222°N 118.66611°W / 43.01222; -118.66611. Diamond is an unincorporated community in Harney County, Oregon, United States. Diamond is west of Oregon Route 205 and south of Malheur Lake, 52 miles (84 km) south-southeast of Burns by highway. [2] Its post office is assigned ZIP code 97722.
اقرأ أكثرDiamond Craters | Volcano World | Oregon State University
Diamond Craters is a monogenetic volcanic field in southeast Oregon. The volcanoes are all Quaternary in age. Lava flows and tephra from the volcanoes cover an area of about 23 square miles (60 square km). This photo shows Keyhole Crater. Special thanks to Rosemary Kenney. Diamond Craters includes numerous features associated …
اقرأ أكثرCrater of Diamonds State Park History | Arkansas State Parks
The history of diamonds in Arkansas began when the first diamonds were found in Pike County, Arkansas in August 1906 by John Wesley Huddleston. These stones were sent to Charles S. Stifft, a Little Rock jeweler who confirmed them to be genuine diamonds. Stifft described them as blue-white diamonds, one weighing 2-5/8 carats, and the other 1-3/8 ...
اقرأ أكثرBest Time of Year to Visit Crater of Diamonds State Park
A visit to Crater of Diamonds State Park promises a blend of adventure, education, and the thrill of potential discovery: Diamond Searching: Equipped with tools, you can sift, dig, and search for diamonds in the 37-acre field. Educational Programs: The park offers regular workshops and demonstrations on gem hunting techniques.
اقرأ أكثرCrater of Diamonds History Timeline | Arkansas State Parks
2/26/1969. Howard Millar sells Millar's Crater of Diamonds to General Earth Minerals, out of Dallas, TX, for $350,000. 12/10/1971. The Arkansas State Parks, Recreation, and Travel Commission votes to buy the Crater of Diamonds property from General Earth Minerals to create a state park. 3/13/1972.
اقرأ أكثرHope Diamond | Encyclopedia
Hope Diamond Famous precious stone with a reputation of bringing disaster to its owners. The Hope diamond is one of the largest colored diamonds known, a vivid blue and weighing 44.4 carats. It is believed to have been cut from an even larger stone of more than 67 carats. The name is derived from Henry Thomas Hope, a former owner who bought it …
اقرأ أكثرDiamond | Encyclopedia
Diamonds are usually found in igneous rock formations and alluvial deposits. Most diamonds are billions of years old. They are often used in industrial and scientific applications. The density of diamond is about 2.0 ounces per cubic inch (3.5 grams per cubic centimeter).
اقرأ أكثرMeteors, Meteorites and Impact Craters | The Canadian Encyclopedia
Impact Craters. Huge objects are not slowed much by the atmosphere and their violent collisions with Earth have blasted out "impact" or "meteorite" craters throughout Earth's 4.6 billion year history. These objects would have been totally vapourized in the process, leaving only the crater scars formed by shock waves to record the events.
اقرأ أكثرDiamond Craters | Volcano World | Oregon State …
Diamond Craters is a monogenetic volcanic field in southeast Oregon. The volcanoes are all Quaternary in age. Lava flows and tephra from the volcanoes cover an …
اقرأ أكثرCrater of Diamonds State Park | Arkansas State Parks
More than 35,000 diamonds have been found by park visitors since the Crater of Diamonds became an Arkansas state park in 1972. Notable diamonds found at the Crater include the 40.23-carat Uncle Sam, the largest diamond ever unearthed in the U.S.; the 16.37-carat Amarillo Starlight; the 15.33-carat Star of Arkansas; and the 8.52-carat …
اقرأ أكثرDiamond Craters
Diamond Craters Outstanding Natural Area is a unique volcanic field packed with with craters, cinder cones, and lava flows. To find the Diamond Craters, travel south two miles past Buena Vista (17 miles north of Frenchglen) on Hwy 205. Turn left on Diamond Lane. This is a paved road that will lead to Diamond, Diamond Craters, and the Round Barn.
اقرأ أكثرDiamond Craters, Diamond, Oregon
Diamond Craters. Diamond, Oregon. Save Add Photo. Add Photo. Save Review Directions Add Photo. Details. Distance. 29.72 miles. Elevation Gain. 810 ft. Route Type. Out-and-Back. Description. This is a new adventure! Be the first to share your experience. Join a supporting community of travelers and adventurers sharing their photos and local ...
اقرأ أكثرDiamond Crater
Diamond Crater (Japanese: ダイヤモンドクレーター Diamond Crater) is an area in Pokémon Rumble World available after obtaining Rank 15. The Diamond Balloon is required for access. It consists of five stages.
اقرأ أكثرDiamond Craters volcano
Tectonic uplift at Diamond Craters has created a series of six overlapping topographic highs, the highest is known as Graben Dome; its 1435-m-high summit is cut by a NW-SE-trending graben 0.4 x 2.1 km long and 30 m deep. Lava flows on the eastern side of the volcanic field and scattered cinder cones and maars formed during the last stage …
اقرأ أكثرdiamond craters encyclopedia
Diamond Craters - The Oregon Encyclopedia. More. Diamond Craters By David Sherrod Diamond Craters is a geologically youthful lava field 52 road miles south-southeast of Burns in southeastern Oregon. The lava field, which encompasses 27 square miles, comprises chiefly pahoehoe (PAH-h ey-h ey), the smooth, ropy-topped lava best known …
اقرأ أكثرGlobal Volcanism Program | Diamond Craters
Diamond Craters volcanic field consists of a 70 km2 area of basaltic lava flows along with numerous cinder cones and maars located between the SE Oregon town of Burns and …
اقرأ أكثرDiamond Craters
Diamond Craters is a monogenetic volcanic field in southeastern Oregon, about 40 miles (64km) southeast of the city of Burns. It consists of a 27squaremile (70km2) area of basaltic lava flows, cinder cones, and maars. The reexamination of radiocarbon dates from older studies and interpretation o
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