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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)
1: ...k]] γη- (''ge-'', "the earth") and λογος (''logos'', "wo...
14: ...cookers, transport of [[ore]]s, extraction of [[soda]], [[sulfur]] and [[alum]], and administrative is...
22: ...ormed by [[vulcanism]] which is the deposition of lava from [[volcano]]es, as opposed to the ''[[Neptuni...
26: ...out the Earth's history and are still occurring today. In contrast, [[Catastrophism|catastrophism]] is...
29: ...ianism, which influenced the thought of [[Charles Darwin]]. - Age of the Earth (20052 bytes)
1: ...cult to define. This article describes the modern dating methods used to arrive at the age of the Eart...
4: ...s Kepler]] believed in a similar date, and some today continue to defend [[young earth creationism]] (...
25: ... seemed much too short to be plausible. [[Charles Darwin]], who had studied Lyell's work, had proposed...
27: In a lecture in [[1869]], Darwin's great advocate, [[Thomas Huxley|Thomas H. H...
31: ... friction]] to give the Earth its current 24-hour day, and concluded that Thomson was on the right tra... - Igneous rock (11419 bytes)
1: [[Image:Hawaii_lava.jpg|thumb|right|Volcanic flow on the Big Island o...
10: ...er part of the Earth's crust, but their great abundance is hidden on the Earth's surface by a relative...
15: ...n be obtained from various forms of [[radiometric dating]] and thus can be compared to adjacent geolog...
37: ...ill flow from the volcano and spread out. Because lava cools and crystallizes rapidly, it is fine graine...
49: ...ble size before the main mass of the magma consolidates into the finer grained uniform material. - Basalt (2961 bytes)
2: ...rained and dense. Basalt in the tops of subaerial lava flows and cinders will often be highly vesiculate...
4: ...y) associated with underwater eruptions. Amygdaloidal structure is common in relic [[vesicle (geology)...
8: ...sion of having been artificially constructed. The dark areas visible on Earth's moon, the [[lunar mare... - Volcano (27295 bytes)
2: ...east, this phenomenon tends to occur near the boundaries of the [[plate tectonics|continental plates]]...
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'''. - Hawaii (34434 bytes)
12: Governor = [[Linda Lingle]] |
16: LandArea = 16,649 |
24: AdmittanceDate = [[August 21]], [[1959]] |
25: ...tian Standard Time Zone|Hawaii]]: [[UTC]]-10/ (no daylight saving time) |
39: ...]. Ecologically and agriculturally, it is the [[endangered species]] capital of the world and is the o... - Oregon (26551 bytes)
16: LandArea = 248,849 |
24: AdmittanceDate = [[February 14]], [[1859]] |
25: ...untain Standard Time Zone|Mountain]]: [[UTC]]-7/[[Daylight saving time|-6]] <small>(all but majority o...
36: ...regions in the world. Oregon is known for its abundant rainfall, but only the western 2/5 of the state...
41: ... living, [[conservation]], and [[urban growth boundary|limited growth]].'' - Cretaceous (7391 bytes)
1: ...). The end of the Cretaceous also defines the boundary between the [[Mesozoic]] and [[Cenozoic]] [[era...
5: ==Name and dating==
6: ...e [[Gulf of Mexico]]. This layer has been tightly dated at 65.5 MYA. This [[bolide]] collision is prob...
15: | (70.6 ± 0.6 – 65.5 ± 0.3 MYA)
18: | (83.5 ± 0.7 – 70.6 ± 0.6 MYA) - Cave (10592 bytes)
2: [[image:Lavacaveexit.jpg|thumb|300px|The outside world viewed ...
3: ...e enough that some portion of it will not receive daylight; however, in popular usage, the term includ...
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... - Landform (3582 bytes)
120: *[[lava dome]]
121: *[[lava flow]] & [[lava plain]] - Mercury (planet) (22924 bytes)
1: ...riner 10]] ([[1974]]–[[1975|75]]); only 40–45% of the planet has been mapped.
8: (This Data comes from [http://www.answers.com/topic/mercur...
10: ...ure]] of Mercury is 452 K, but it ranges from 90–700 K; by comparison, the temperature on Earth ...
12: Surprisingly, radar observations taken in 1992 indicated that there ...
16: ...rrain. In addition, Mercury has "significant" [[tidal bulge]]s, raised by the [[Sun]] (the Sun's tides... - Venus (planet) (31010 bytes)
3: ...the "[[Evening Star]]", and when it is visible in dark skies it is by far the brightest [[star]]-like ...
5: ...vilization (the Mayans developed a religious calendar based on Venus's motion) and must have been know...
14: ... the upper atmosphere circle the planet in only 4 days, helping to distribute the heat.
18: ...ture, listed in the table, refers to cloud tops — the surface temperature is never below 400°...
21: [[Image:Venus globe.jpg|thumb|left|[[Radar]] image of the surface of Venus, centered at 180... - Mars (27704 bytes)
8: ... land because Mars lacks [[ocean]]s). The [[solar day]] on Mars is almost the same length as it is on ...
27: ...Mare Sirenum]] and [[Aurorae Sinus]]. The largest dark feature seen from Earth is [[Syrtis Major]].
31: ...las impact basin at an altitude of 4 km below the datum). In comparison, the difference between Earth'...
39: ... [[mean gravity surface]] must be selected. The [[datum]] for Mars is defined by the fourth-degree and...
41: ...e line of Beer and M䤬er, was chosen by [[Merton Davies]] of the [[RAND Corporation]] to provide a mo... - Pompeii (10901 bytes)
13: In [[62]], a violent [[earthquake]] severely damaged Pompeii and many other towns of Campania. In...
18: ... the sun on a mild afternoon. Coincidentally, the date was that of the [[Vulcanalia]], the festival of...
20: ...e phenomenon occurring over Mt. Vesuvius: a large dark cloud shaped rather like a pine tree emanating ...
22: ...ud" that Pliny the Younger wrote about is known today as a [[pyroclastic flow]], which is a cloud of s...
26: ... the eruption and the daylight hours were left in darkness. His uncle [[Pliny the Elder]] had already ... - Sodalite (4894 bytes)
3: !colspan=2 align=center|Sodalite
5: ...tail of a sodalite slab]]<br><small>Detail of a sodalite slab</small>
23: | [[Fracture]]|| Conchoidal to uneven - brittle
47: ...ldom transparent, sodalite is a member of the [[sodalite group]] and together with [[hauyne]], [[nosea...
49: ...ng Ontario some time after its discovery, chose sodalite as interior decoration for [[Marlborough Hous... - Yellowstone National Park (23738 bytes)
9: <td>[[Idaho]], [[Wyoming]] and [[Montana]]</td></tr>
16: <tr><td>''Date of establishment''</td>
25: ...rk]] located in the [[U.S. states|states]] of [[Idaho]], [[Montana]], and [[Wyoming]]. Yellowstone is...
32: ... It was known to the original natives as "Mitzi-a-dazi," the "River of Yellow Rocks," because of the h...
46: ... to control poaching and vandalism in the park. Today, Harry Yount is considered the very first nation... - Ankara (15129 bytes)
34: ...yday, and the adjacent museum every day except Mondays).
41: ...art from the late [[19th century]] to the present day. There are also galleries which host guest exhib...
49: ...citadel were laid by the Galatians on a prominent lava outcrop, and the rest was completed by the Romans...
55: ... honour the [[Asclepios]], the God of Medicine. Today only the basement and first floors remain. Situa...
69: ... was constructed in the late 20th century in accordance with classical Ottoman models, which emphasize... - 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)
1: ... species of [[plant]]s and [[animal]]s that have adapted to this harsh [[desert]] environment. Some ex...
5: ...reating the [[Basin and Range]] landform we see today. Valleys filled with sediment and, during the we...
9: ...alleys; [[Death Valley]] and [[Panamint Valley]]—both of which were formed within the last few m...
25: <tr><td>''Date of Establishment''</td>
38: ...ant barriers; the [[Sierra Nevada (US)|Sierra Nevada]], [[Argus Range]], and the Panamint Range. Air m... - Sand (3758 bytes)
3: ...s ranging up to 64 mm (see [[grain size]] for standards in use).
5: ...en in color, as are sands derived from basalts ([[lava]]s) with a high olivine content. The gypsum sand ...
14: ...peanut]]s and are often preferred for intensive [[dairy farming]] because of their excellent drainage ...
21: ...awsuits in recent years where workers have sought damages after they developed [[silicosis]], a [[lung...
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