iPedia Free Information Center

Information about Emi Koussi

Emi Koussi

Emi Koussi seen from International Space Station
Elevation3,445 metres (11302 ft)
LocationChad
RangeTibesti Mountains
CoordinatesCoordinates:
TypeShield volcano
Age of rockHolocene
Last eruptionunknown
First ascent1938
Easiest routewalk up
Emi Koussi is a high shield volcano that lies at the south end of the Tibesti Mountains in the central Sahara of northern Chad. It is the highest mountain in Chad, and the highest in the Sahara. The volcano is one of several in the Tibesti massif, and reaches 3445 m in altitude, rising 2.3 km above the surrounding sandstone plains. The volcano is 60 by 80 km wide.

Two nested calderas cap the volcano, the outer one being about 12 by 15 km in size. Within it on the southeast side is a smaller caldera, about 2-3 km wide and 350 m deep. Numerous lava domes, cinder cones, maars, and lava flows are found both within the calderas and along the outer flanks of the shield.

Emi Koussi has been used as a close analog to the famous Martian volcano Elysium Mons. One of the most important morphological differences between volcanoes on Mars and Earth is the widespread furrowing of the surface due to flowing water on terrestrial volcanoes. The furrows are shallow valleys. Larger channels have a different origin. Major channels can be seen on volcanoes on both planets and indicate low points in caldera rims where lava spilled out of pre-collapse craters.

Original entry was from the NASA Earth Observatory; [1]

References

summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. Mathematically speaking, a summit is a local maximum in elevation.
..... Click the link for more information.
1 metre =
SI units
1000 mm 0 cm
US customary / Imperial units
0 ft 0 in
The metre or meter[1](symbol: m) is the fundamental unit of length in the International System of Units (SI).
..... Click the link for more information.
1 foot =
SI units
0 m 0 mm
US customary / Imperial units
0 yd 0 in
A foot (plural: feet or foot;[1] symbol or abbreviation: ft or, sometimes, ′
..... Click the link for more information.
Motto
"Unité, Travail, Progrès"   (French)
"Unity, Work, Progress"
Anthem
"La Tchadienne"
..... Click the link for more information.
For exotic financial options, see .


A mountain range is a chain of mountains bordered by lowlands or separated from other mountain ranges by passes or rivers.
..... Click the link for more information.
Tibesti Mountains are a group of dormant volcanoes forming a mountain range in the central Sahara desert in the Bourkou-Ennedi-Tibesti Region of northern Chad. The northern slopes extend a short distance into southern Libya.
..... Click the link for more information.
geographic coordinate system enables every location on the earth to be specified by the three coordinates of a spherical coordinate system aligned with the spin axis of the Earth.
..... Click the link for more information.
geographic coordinate system enables every location on the earth to be specified by the three coordinates of a spherical coordinate system aligned with the spin axis of the Earth.
..... Click the link for more information.
Mountains can be characterized in several ways. Some mountains are volcanoes and can be characterized by the type of lava and eruptive history. Other mountains are shaped by glacial processes and can be characterized by their shape.
..... Click the link for more information.
A shield volcano is a large volcano with shallow-sloping sides. The name derives from a translation of "Skjaldbreiður", an Icelandic shield volcano whose name means "broad shield," from its resemblance to a warrior's shield.
..... Click the link for more information.
The geological time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of Earth.
..... Click the link for more information.
The Holocene epoch is a geological period, which began approximately 11,550 calendar years BP (about 9600 BC) and continues to the present. The Holocene is part of the Neogene and Quaternary periods.
..... Click the link for more information.
Volcano:
1. Large magma chamber
2. Bedrock
3. Conduit (pipe)
4. Base
5. Sill
6. Branch pipe
7. Layers of ash emitted by the volcano
8. Flank 9. Layers of lava emitted by the volcano
10. Throat
11. Parasitic cone
12. Lava flow
13. Vent
14.
..... Click the link for more information.
In climbing, a first ascent (FA) is the first modern recorded climb to reach the top of a mountain, or the first to follow a particular climbing route. First ascents are notable because they are the climbs that entail genuine exploration; the risks are higher and the challenge
..... Click the link for more information.
climbing route is a path by which a climber reaches the top of a mountain, rock, or ice wall. Routes can vary dramatically in difficulty and, once committed to that ascent, can be difficult to stop or return. So, choice of route can be critically important.
..... Click the link for more information.
A shield volcano is a large volcano with shallow-sloping sides. The name derives from a translation of "Skjaldbreiður", an Icelandic shield volcano whose name means "broad shield," from its resemblance to a warrior's shield.
..... Click the link for more information.
Tibesti Mountains are a group of dormant volcanoes forming a mountain range in the central Sahara desert in the Bourkou-Ennedi-Tibesti Region of northern Chad. The northern slopes extend a short distance into southern Libya.
..... Click the link for more information.
Sahara (Arabic: الصحراء الكبرى, aṣ-ṣaḥrā´ al-koubra, "The Great Desert", (
..... Click the link for more information.
Motto
"Unité, Travail, Progrès"   (French)
"Unity, Work, Progress"
Anthem
"La Tchadienne"
..... Click the link for more information.
caldera is a volcanic feature formed by the collapse of land following a volcanic eruption. They are often confused with volcanic craters. The word 'caldera' comes from the Spanish language, meaning "cauldron".
..... Click the link for more information.
lava dome or plug dome is a roughly circular mound-shaped protrusion resulting from the slow eruption of felsic lava (usually rhyolite and/or dacite) from a volcano.
..... Click the link for more information.
cinder cone or scoria cone is a steep, conical hill of volcanic fragments that accumulate around and downwind from a volcanic vent.[1] The rock fragments, often called cinders or scoria, are glassy and contain numerous gas bubbles "frozen" into place as magma
..... Click the link for more information.
maar is a broad, low relief crater that is caused by a phreatic eruption or explosion caused by groundwater contact with hot lava or magma. The maar typically fills with water to form a relatively shallow crater lake.
..... Click the link for more information.
Lava is molten rock expelled by a volcano during an eruption. When first expelled from a volcanic vent, it is a liquid at temperatures from 700 °C to 1,200 °C (1,300 °F to 2,200 °F).
..... Click the link for more information.
Mars  

Mars as seen by the Hubble Space Telescope
Orbital characteristics
Epoch J2000<ref name="nssdc" />
Aphelion distance: 249,228,730 km
1.66599116 AU
Perihelion distance: 206,644,545 km
1.
..... Click the link for more information.
Elysium Mons is a volcano on Mars located in the Elysium Planitia, at 25°N, 213°W, in the Martian eastern hemisphere. It stands about 12.5 km above the surrounding lava plains, and about 16 km above the Martian datum.
..... Click the link for more information.
Mars  

Mars as seen by the Hubble Space Telescope
Orbital characteristics
Epoch J2000<ref name="nssdc" />
Aphelion distance: 249,228,730 km
1.66599116 AU
Perihelion distance: 206,644,545 km
1.
..... Click the link for more information.
EARTH was a short-lived Japanese vocal trio which released 6 singles and 1 album between 2000 and 2001. Their greatest hit, their debut single "time after time", peaked at #13 in the Oricon singles chart.
..... Click the link for more information.
caldera is a volcanic feature formed by the collapse of land following a volcanic eruption. They are often confused with volcanic craters. The word 'caldera' comes from the Spanish language, meaning "cauldron".
..... Click the link for more information.
Lava is molten rock expelled by a volcano during an eruption. When first expelled from a volcanic vent, it is a liquid at temperatures from 700 °C to 1,200 °C (1,300 °F to 2,200 °F).
..... Click the link for more information.


This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.
Herod_Archelaus


page counter