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- Lava dome (958 bytes)
1: ...e unstable and prone to collapse. When part of a lava dome collapses while it still contains molten roc...
3: Some of the world's most famous active lava domes include those at [[Merapi volcano]] in [[Ja... - Lava flow (9578 bytes)
6: ...argin-left: 60px;">Look up '''''[[wiktionary:Lava|Lava]]''''', '''''[[wiktionary:Aa|‘A‘a]]''...
9: ...0�F to 2200�F). However, the [[viscosity]] of lava is 100,000 times that of water. Nevertheless, the...
11: ... [[1737]]. In this he described "a flow of fiery lava" in analogy to the flow of water and mud down the...
12: ...iginal.jpg|thumb|right|250px|10m high fountain of lava]]
14: == Lava flow types == - Lava (9992 bytes)
6: ...argin-left: 60px;">Look up '''''[[wiktionary:Lava|Lava]]''''', '''''[[wiktionary:Aa|‘A‘a]]''...
9: ...C (1300F to 2200F). However, the [[viscosity]] of lava is 100,000 times that of water. Nevertheless, the...
11: ... [[1737]]. In this he described "a flow of fiery lava" in analogy to the flow of water and mud down the...
12: ...iginal.jpg|thumb|right|250px|10m high fountain of lava]]
14: == Lava flow types ==
Page text matches
- Geology (12007 bytes)
22: ...ormed by [[vulcanism]] which is the deposition of lava from [[volcano]]es, as opposed to the ''[[Neptuni...
42: ...se foreign bodies are picked up as [[magma]] or [[lava]] flows, and are incorporated, later to cool in t... - Age of the Earth (20052 bytes)
29: ...ulations. However, they assumed that the Sun was only glowing from the heat of its [[gravitational con...
37: ...his estimates were correct. The geologists could only suggest (correctly) that Kelvin didn't have all ...
59: ...as [[helium]] atoms. At the time, Rutherford was only guessing at the relationship between alpha parti...
77: ...ample, he assumed that the samples had contained only uranium and no lead when they were formed.
85: ... the die-hards in the geological community stubbornly resisted. They had never cared for attempts by p... - Igneous rock (11419 bytes)
1: [[Image:Hawaii_lava.jpg|thumb|right|Volcanic flow on the Big Island o...
6: ...e [[Continental crust|continents]], but averages only some 7 kilometers (4.3 miles) beneath the [[Ocea...
8: ...a from which the minerals crystallize is rich in only certain elements: [[silicon]], [[oxygen]], [[alu...
17: ... [[tungsten]], [[tin]], and [[uranium]], are commonly associated with [[granite]]s.
35: ... a result of volcanic activity. The temperatures only a few kilometers beneath the surface of the eart... - Basalt (2961 bytes)
2: ...rained and dense. Basalt in the tops of subaerial lava flows and cinders will often be highly vesiculate...
4: ...pidly chilled surfaces of lava flows, and is commonly (but not exclusively) associated with underwater...
8: ...he [[United States]], as well as the [[Triassic]] lavas of eastern [[North America]] are basalts. Perhap... - Volcano (27295 bytes)
10: ...ins a high percentage (>65%) of [[silica]] the lava is called '''[[felsic]]''' and tends to be very [...
12: ...ing for long distances. A good example of a mafic lava flow is the Great ުrhraun (Thjrhraun) fl...
15: ...ry fluid, contributing to long flows. The largest lava shield on [[Earth]], [[Mauna Loa]], is 9,000 m hi...
16: ...e''' ('''''tholoid'''''), '''lava cone''', and '''lava mound'''.
20: ...tates are tall conical mountains composed of both lava flows and ejected material. - Hawaii (34434 bytes)
39: ...ngered species]] capital of the world and is the only industrial producer of [[coffee]], and [[chocola...
54: ...lowly creating new volcanoes. This explains why only volcanoes on the the southern half of the Island...
71: ...republican regime, [[Iolani Palace]] — the only official royal residence in the United States to...
88: ...], a subset of [[American English]], is also commonly used for other formal business. Hawaiian is leg...
95: ...stem|University of Hawaii System]] developed the only Hawaiian language graduate studies program in th... - Oregon (26551 bytes)
36: .... Oregon is known for its abundant rainfall, but only the western 2/5 of the state is notably rainy; e...
94: [[Crater Lake National Park]] is Oregon's only [[national park]].
101: ...n to serve a six-year term as Chief Justice. The only court that may reverse or modify a decision of t...
164: ...urch]] membership rates as high as 80 %, it runs only about 12 % in Oregon.
176: ...ed west of the [[Rocky Mountains]], stocked with only 300 volumes. - Cretaceous (7391 bytes)
59: ...[[China]]. In the area that is now India, massive lava beds called the [[Deccan Traps]] were laid down i...
69: ...ion]] of [[bird]]s, and by the end of the period only two highly specialised [[Family (biology)|famili... - Cave (10592 bytes)
2: [[image:Lavacaveexit.jpg|thumb|300px|The outside world viewed ...
10: ...e at Craters of the Moon NM-750px.JPG|thumb|300px|Lava tube cave at [[Craters of the Moon National Monum...
11: ... and the surface cools down and becomes hard. The lava now flows inside its crust, until the eruption en...
12: The liquid lava inside the crust flows out and leaves a hollow tu...
13: ...a Cave]] near [[Hilo]] is the longest and deepest lava tube of the world and also the eighth longest cav... - Landform (3582 bytes)
120: *[[lava dome]]
121: *[[lava flow]] & [[lava plain]] - Mercury (planet) (22924 bytes)
1: ...was [[Mariner 10]] ([[1974]]–[[1975|75]]); only 40–45% of the planet has been mapped.
9: ===Temperature and sunlight===
10: ...adiation]]; not [[climate]] or [[season]]). The sunlight on Mercury's surface is 6.5 times as intense ...
16: ...re less heavily cratered and probably formed when lava flows buried earlier terrain. In addition, Mercur...
28: ...ls 42% of the planetary [[volume]] (Earth's core only fills 17%). Surrounding the core is a 600 km [[m... - Venus (planet) (31010 bytes)
3: ...uring the daytime, making it one of only two heavenly bodies that can be seen both day and night (the ...
7: The adjective ''Venusian'' is commonly used for Venus, but it is etymologically incorre...
14: ...nds in the upper atmosphere circle the planet in only 4 days, helping to distribute the heat.
16: ...ght back into space. This prevents most of the sunlight from ever heating the surface. Venus's [[Bol...
18: ... of force against obstructions. The clouds are mainly composed of [[sulfur dioxide]] and [[sulfuric ac... - Mars (27704 bytes)
8: ... a quarter the surface area of the [[Earth]] and only one-tenth the [[mass]] (though its surface area ...
11: ... is thin: the [[air pressure]] on the surface is only 750 [[pascal]]s, about 0.75 percent of the avera...
22: ... mineral [[goethite]], which (unlike hematite) ''only'' forms in the presence of water, along with oth...
27: ...ography is striking: northern plains flattened by lava flows contrast with the southern highlands, pitte...
31: ...[[Mount Everest]] and the [[Mariana Trench]]) is only 19.7 km. Combined with the planets' different ra... - Pompeii (10901 bytes)
9: ...); the new rulers imposed their architecture and enlarged the town. It has been supposed that during t...
20: The only reliable eyewitness account of the event was rec...
36: Pompeii is, in fact, the only ancient town of which the whole topographic stru...
45: Most of the archeological digs at the site only extend down to the street level of the 79 volcan...
47: Three sheets of sediment have been found atop the lava bedrock that lies below the city. Mixed in with ... - Sodalite (4894 bytes)
49: Discovered in [[1806]] in [[Greenland]], sodalite did not become important as an orn...
52: ... Lesser material is more often seen as facing or inlay in various applications.
56: ...lour and gradually fades to a white or green in sunlight. If left in a dark environment for some time,...
61: ...found principally in Mont. Saint-Hilare and [[Greenland]], the latter locale producing a green specime...
63: ...ls are found in northern [[Namibia]] and in the [[lava]]s of [[Vesuvius]], [[Italy]]. These rare specime... - Yellowstone National Park (23738 bytes)
73: ...near Tower Fall. Large floods of basalt and other lava types preceded mega-eruptions of super-heated ash...
76: ...mation]] created by this eruption is called the [[Lava Creek Tuff]]. In addition to the last great erupt...
84: ...(example at [[Obsidian Cliffs]]) and [[basalt]]ic lavas (example at [[Sheepeaters Cliff]]). But 150,000 ...
114: ...jor tourist areas were affected. Some areas have only recently recovered fully from the blaze.
129: ...tone/index-en.html Yellowstone page on Stromboli online] - Ankara (15129 bytes)
49: ...citadel were laid by the Galatians on a prominent lava outcrop, and the rest was completed by the Romans...
55: ...ur the [[Asclepios]], the God of Medicine. Today only the basement and first floors remain. Situated i...
61: ...Future''': This monument, in Güven Park, Bakanlıklar quarter, was erected in 1935 and bears ...
75: ...pond for rowing), the Botanical Garden, Seğmenler Park, Anayasa Park, Kuğulu Park (famous fo... - Magma (871 bytes)
1: ...volcano|volcanic]] vents in the form of flowing [[lava]]. These products of a volcanic eruption usually...
3: [[Image:Molten_lava_flowing.jpg|250px|left|thumb]] - Death Valley National Park (38245 bytes)
3: ...h]] to exploit minor local bonanzas of gold. The only long-term profitable ore to be mined, however, w...
5: ...of [[ice age]]s, with [[lake]]s, such as [[Lake Manly]].
41: ... [[lake]] that once filled Death Valley ([[Lake Manly]]) was the last stop for water flowing in the re...
51: ... - remnants of the once huge lakes [[Lake Manly|Manly]] and [[Lake Panamint|Panamint]]. A much milder...
57: ...ley). Included in the party was [[William Lewis Manly]] whose autobiographical book ''Death Valley in ... - Sand (3758 bytes)
5: ...en in color, as are sands derived from basalts ([[lava]]s) with a high olivine content. The gypsum sand ...
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