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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: ...of the world's most famous active lava domes include those at [[Merapi volcano]] in [[Java (island)|Ja... - Lava flow (9578 bytes)
4: <div class="noprint" style="clear: right; border: solid #aaa 1px; margin: 0 0 1em 1em; font-size:...
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]] - Lava (9992 bytes)
4: <div class="noprint" style="clear: right; border: solid #aaa 1px; margin: 0 0 1em 1em; font-size:...
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]]
Page text matches
- Geology (12007 bytes)
3: ...d [[uranium]]. Additional economic interests include minerals such as [[asbestos]], [[perlite]], [[mic...
7: ...ween earthly and [[Theology|theological]] jurisprudence.
10: ...f the [[mountain]]s and by [[Deposition (geology)|deposition]] of [[silt]].
12: ...ks ''Peri lithōn'' by [[Theophrastus]], a student of [[Aristotle]], remained authoritative for mi...
14: ...etallica libri XII'', with an appendix ''Buch von den Lebewesen unter Tage'' (book of the creatures be... - Age of the Earth (20052 bytes)
1: ...difficult to define. This article describes the modern dating methods used to arrive at the age of the...
4: ...ved in a similar date, and some today continue to defend [[young earth creationism]] (see [http://www....
6: Few people had conceived the idea of a time that stretched far into the past befor...
9: ...of [[Russia]]n science, was one of the first to undertake this exercise, suggesting in the mid-[[18th ...
11: ...h]] naturalist the [[Georges-Louis Leclerc, Comte de Buffon|Comte du Buffon]] tried to obtain a value ... - Igneous rock (11419 bytes)
1: ...anic flow on the Big Island of Hawaii. Image provided by [http://classroomclipart.com Classroom Clip A...
3: ... [[Crust (geology)|crust]]. The word "igneous" is derived from the [[Latin]] ''ignis'', meaning "fire"...
6: ...le at temperatures estimated between 600 to 1600 °C.
10: ...on the Earth's surface by a relatively thin but widespread layer of sedimentary and metamorphic rocks.
17: ...special circumstances they host important mineral deposits ([[ore]]s): for example, [[tungsten]], [[ti... - Basalt (2961 bytes)
2: ...f oceanic [[tectonic plate]]s are predominantly made of basalt.
4: ... commonly (but not exclusively) associated with underwater eruptions. Amygdaloidal structure is common...
8: ...tronauts of the [[Apollo program]]. [[Pliny the Elder|Pliny]] used the word basalt and it is said to h...
12: ... rich in [[silica]] and poor in [[sodium]]. Included in this category are most basalts of the [[ocean... - Volcano (27295 bytes)
1: ...o2.jpg|thumb|225px|left|Volcano Illustration provided by [http://classroomclipart.com Classroom Clipar...
2: ...) where [[magma]] (rock of the earth's interior made molten or liquid by high pressure and temperature...
10: ...mple. This type of volcano has a tendency to explode because it easily plugs. [[Mount Pel饝] on the i...
12: ... and ''mafic'' are sometimes substituted by the older chemistry terms "acidic" and "basic", respective...
15: ...ry fluid, contributing to long flows. The largest lava shield on [[Earth]], [[Mauna Loa]], is 9,000 m hi... - Hawaii (34434 bytes)
21: DensityRank = 13<sup>th</sup> |
22: 2000Density = 42.75 |
23: AdmittanceOrder = 50<sup>th</sup> |
26: Longitude = 154?40'W to 162?W |
27: Latitude = 18?55'N to 29?N | - Oregon (26551 bytes)
21: DensityRank = 39<sup>th</sup> |
22: 2000Density = 13.76 |
23: AdmittanceOrder = 33<sup>rd</sup> |
26: Latitude = 42°N to 46°15'N |
27: Longitude = 116°45'W to 124°30'W | - Cretaceous (7391 bytes)
1: ...period (65.5 mya). The end of the Cretaceous also defines the boundary between the [[Mesozoic]] and [[...
6: ...he extensive beds of chalk ([[calcium carbonate]] deposited by the shells of marine [[invertebrate]]s)...
10: ...visions. The [[faunal stage]]s from youngest to oldest are:
57: ... and then started to recede, leaving thick marine deposits sandwiched between [[coal]] beds.
59: ...that is now India, massive lava beds called the [[Deccan Traps]] were laid down in the very late Creta... - Cave (10592 bytes)
2: [[image:Lavacaveexit.jpg|thumb|300px|The outside world viewed from a cave]]
3: ...aylight; however, in popular usage, the term includes smaller spaces like cliff cavities, rock shelter...
10: ...e at Craters of the Moon NM-750px.JPG|thumb|300px|Lava tube cave at [[Craters of the Moon National Monum...
11: ...ols down and becomes hard. The lava now flows inside its crust, until the eruption ends.
12: The liquid lava inside the crust flows out and leaves a hollow tube. - Landform (3582 bytes)
1: ...[Ocean]]s and [[continent]]s exemplify highest-order landforms.
3: ...orms -- see for example the role of plants in the development of [[dune]] systems and [[salt marsh]]es...
4: ...b|right|Landform of Cappodocia, Turkey.Image provided by [http://classroomclipart.com Classroom Clip A...
30: ...ght|Coastal landform of Rhodes, Greece.Image provided by [http://classroomclipart.com Classroom Clip A...
42: *[[river delta|delta]] - Mercury (planet) (22924 bytes)
1: ...anges from −0.4 to 5.5 in [[apparent magnitude]]; Mercury is sufficiently "close" to the Sun tha...
3: ...not realized it could alternately appear on one side of the Sun and then the other. It was called [[He...
12: ...aded [[Impact crater|crater]]s, where it has been deposited by [[comet]] impacts and/or gases arising ...
16: ...idal bulge]]s, raised by the [[Sun]] (the Sun's tides on Mercury are about 17% stronger than the Moon'...
28: ...of Earth compresses the planet and creates a high density. Mercury has only 5.5% of Earth's mass. The ... - Venus (planet) (31010 bytes)
1: ...]], is named after the [[Roman mythology|Roman goddess]] [[Venus (mythology)|Venus]]. A [[terrestrial...
5: ...r: a circle with a small cross underneath ([[Unicode]]: ♀).
7: ...m [[Cythera]]. Other less common adjectives include ''Venerean'' and ''Veneran''.
14: ...ficantly between the night and day sides of Venus despite its extremely slow rotation (less than one r...
16: ...quite similar to Earth. A common conceptual misunderstanding regarding Venus is the mistaken belief t... - Mars (27704 bytes)
2: [[Image:Mars NPArea-PIA00161 modest.jpg|thumb|right|North Polar region with icecap....
4: ...]]s ([[Phobos (moon)|Phobos]] and [[Deimos (moon)|Deimos]]) which are both small and oddly-shaped, pos...
8: ...e. Its red, fiery appearance is caused by Iron Oxide (rust) on its surface. Mars has only a quarter th...
11: ...he atmosphere on Mars is 95 percent [[carbon dioxide]], 3 percent [[nitrogen]], 1.6 percent [[argon]],...
13: ... volcanic methane is accompanied by [[sulfur dioxide]]. - Pompeii (10901 bytes)
1: ...e:Pompeii7.jpg|right|thumb|Ruins in Pompeii, provided by [http://classroomclipart.com Classroom Clip A...
3: ...vessels to save some of those trapped in the seaside towns.
7: ...mage:Pompeii6.jpg|left|thumb|View of Pompeii provided by [http://classroomclipart.com Classroom Clip A...
9: The town was founded in the ca. [[6th century BCE]] by the [[Osci]] o...
11: ... of '''Colonia [[Cornelius|Cornelia]] [[Venus (goddess)|Veneria]] Pompeianorum'''. The town became an ... - Sodalite (4894 bytes)
1: {| border=1 cellspacing=0 align=right cellpadding=0 width=...
5: ...l.jpg|250px|Detail of a sodalite slab]]<br><small>Detail of a sodalite slab</small>
13: !colspan=2|Identification
17: | [[Crystal habit]] || Massive; rarely dodecahedrons
21: | [[Cleavage (crystal)|Cleavage]]|| Dodecahedral (six directions), poor - Yellowstone National Park (23738 bytes)
1: <table border="1" cellpadding="2" cellspacing="0" align="right...
6: <tr><td>''Designation''</td>
25: ..., and [[Wyoming]]. Yellowstone is the first and oldest [[national park]] in the world and covers 3,470...
27: ...f these changes could have resulted in the worldwide population of humans falling to as little as 10,0...
29: ...en in the [[Grand Canyon of the Yellowstone]] - a deep gash in the Yellowstone Plateau that was formed... - Ankara (15129 bytes)
1: ...3.jpg|thumb|350px|right|View of Ankara|Image provided by [http://classroomclipart.com Classroom Clipar...
4: ...gn embassies. It is an important crossroads of trade, strategically located at the center of Turkey's ...
6: ...iver. The city is located 39°52'30" North, 32°50' East (39.875, 32.8333).
11: ... [[Hattians|Hatti]] civilization, which was succeeded in the 2nd millennium BC by the [[Hittites|Hitti...
13: ...tayed in the city for a period of time. After his death at [[Babylon]] in [[323 BC]], Ankara and its e... - Magma (871 bytes)
1: ...volcano|volcanic]] vents in the form of flowing [[lava]]. These products of a volcanic eruption usually...
2: Igneous rocks are derived from magma through solidification and relate...
3: [[Image:Molten_lava_flowing.jpg|250px|left|thumb]] - Death Valley National Park (38245 bytes)
1: ... Bush]], [[Bighorn Sheep]], [[Coyote]], and the [[Death Valley Pupfish]] - a survivor of much wetter t...
3: ...ational Park, as well as being substantially expanded.
5: ...1700 million years old. Ancient warm-shallow seas deposited marine sediments until rifting opened the ...
6: ...|A slice through the highest and lowest points in Death Valley National Park.]]
8: ...age:Wpdms shdrlfi020l death valley.jpg|frame|left|Death Valley and environs]] - Sand (3758 bytes)
1: ...t in Sand near Morrow Bay, California. Image provided by [http://classroomclipart.com Classroom Clip A...
3: ...tter]]. Sand is a naturally occurring, finely divided [[rock (geology)|rock]], comprising particles or...
5: ...]] are famous for their bright, white color. Sand deposits in some areas contain [[garnet]]s and other...
6: ...mb|300px|Beach and Sand, Tulum Mexico. Image provided by [http://classroomclipart.com Classroom Clip A...
7: ...[bar (landform)|sand bars]], and the like. In a [[desert]], sand is a dominant constituent of the soil...
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