Melas Chasma /ˈmiːləs ˈkæzmə/ is a canyon on Mars, the widest segment of the Valles Marineris canyon system, located east of Ius Chasma at 9.8°S, 283.6°E in Coprates quadrangle. It cuts through layered deposits that are thought to be sediments from an old lake that resulted from runoff of the valley networks to the west. Other theories include windblown sediment deposits and volcanic ash. Support for abundant, past water in Melas Chasma is the discovery by MRO of hydrated sulfates. In addition, sulfate and iron oxides were found by the same satellite. Although not chosen as one of the finalists, it was one of eight potential landing sites for the Mars 2020 rover, a mission with a focus on astrobiology.
| Attributes | Values |
|---|
| rdf:type
| |
| rdfs:label
| - Melas Chasma (ca)
- Melas Chasma (de)
- Melas Chasma (it)
- Melas Chasma (en)
- メラス谷 (ja)
- Melas Chasma (pt)
- 米拉斯峽谷 (zh)
- Каньйон Мелас (uk)
|
| rdfs:comment
| - Melas Chasma és una estructura geològica del tipus chasma a la superfície de Mart, situada amb el sistema de coordenades planetocèntriques a -7.23 ° de latitud N i 291.89 ° de longitud E. Fa 563.52 km de diàmetre. El nom va ser fet oficial per la UAI l'any 1973 i pren el nom d'una característica d'albedo. (ca)
- Melas Chasma ist ein tiefer Canyon auf dem Mars. Er ist eine der am tiefsten liegenden Regionen auf dem Mars und Teil des Grabensystems Valles Marineris. Die dort entdeckten Sulfat-Ablagerungen und alten Flusssysteme sind deutliche Anzeiger für flüssiges Wasser. (de)
- メラス谷（英: Melas Chasma）は、火星のマリネリス峡谷の中央部に位置する谷（カズマ地形）。マリネリス峡谷の最も幅が広い部分であり、地図上ではの南緯9.8度東経283.6度、の東側にあたる。 (ja)
- 米拉斯峽谷（Melas Chasma）是一個火星上的峽谷，是水手號谷最寬的一部分。 (zh)
- Каньйон Мелас (лат. Melas Chasma) — каньйон на Марсі, найширший сегмент долини Маринер. Розташований східніше каньйону Іо у квадранглі Coprates . Він прорізається через шаруваті відклади, які, як вважають, є осадами колишнього озера. Апарат MRO відкрив у долині поклади гідратних сульфатів, які свідчать про те, що каньйон колись був наповнений водою. Крім того, тим же супутником були знайдені поклади оксиду заліза. (uk)
- Melas Chasma /ˈmiːləs ˈkæzmə/ is a canyon on Mars, the widest segment of the Valles Marineris canyon system, located east of Ius Chasma at 9.8°S, 283.6°E in Coprates quadrangle. It cuts through layered deposits that are thought to be sediments from an old lake that resulted from runoff of the valley networks to the west. Other theories include windblown sediment deposits and volcanic ash. Support for abundant, past water in Melas Chasma is the discovery by MRO of hydrated sulfates. In addition, sulfate and iron oxides were found by the same satellite. Although not chosen as one of the finalists, it was one of eight potential landing sites for the Mars 2020 rover, a mission with a focus on astrobiology. (en)
- Il Melas Chasma è una delle principali valli che compongono il sistema delle Valles Marineris, su Marte. Si estende principalmente in direzione est-ovest, correndo parallelamente al Candor e all'Ophir Chasma, entrambi situati più a nord; è ad est dello Ius Chasma. Sul letto dei canyon minori che separano il Candor Chasma dal Melas Chasma sono presenti depositi alluvionali, o comunque materiali precipitati sul fondo delle valli in seguito al ritiro dei ghiacci entro cui erano disciolti. Sono inoltre presenti rocce di origine vulcanica fortemente erose dagli agenti atmosferici. (it)
- Melas Chasma é um cânion em Marte, o segmento mais largo do sistema de cânions Valles Marineris, localizado a leste de Ius Chasma a 9.8°S, 283.6°E. Melas Chasma corta por entre depósitos em camadas os quais se especula ser sedimentos de um antigo lago que resultou do escoamento da rede de vales a oeste. Outras teorias incluem depósitos de sedimentos transportados pelo vento e cinzas vulcânicas. Uma evidência para a existência de água abundante no passado em Melas Chasma é a descoberta pela MRO de sulfatos hidratados. Além disso, óxidos de ferro e enxofre foram detectados pelo mesmo satélite. (pt)
|
| name
| |
| geo:lat
| |
| geo:long
| |
| foaf:depiction
| |
| dct:subject
| |
| Wikipage page ID
| |
| Wikipage revision ID
| |
| Link from a Wikipage to another Wikipage
| |
| Link from a Wikipage to an external page
| |
| sameAs
| |
| dbp:wikiPageUsesTemplate
| |
| thumbnail
| |
| caption
| - Melas Chasma in mosaic of THEMIS infrared images, with parts of Ius, Candor and Coprates chasmata visible at the upper left, top and lower right, respectively. Enormous landslide deposits are visible near the junctions of Melas Chasma with each of the neighboring chasmata. Numerous graben and ridges stretch across the plateau outside the canyons' rims. (en)
|
| date
| |
| length
| |
| title
| - Melas, Candor and Ophir: Valleys of Mariner (en)
|
| georss:point
| |
| has abstract
| - Melas Chasma és una estructura geològica del tipus chasma a la superfície de Mart, situada amb el sistema de coordenades planetocèntriques a -7.23 ° de latitud N i 291.89 ° de longitud E. Fa 563.52 km de diàmetre. El nom va ser fet oficial per la UAI l'any 1973 i pren el nom d'una característica d'albedo. (ca)
- Melas Chasma ist ein tiefer Canyon auf dem Mars. Er ist eine der am tiefsten liegenden Regionen auf dem Mars und Teil des Grabensystems Valles Marineris. Die dort entdeckten Sulfat-Ablagerungen und alten Flusssysteme sind deutliche Anzeiger für flüssiges Wasser. (de)
- Melas Chasma /ˈmiːləs ˈkæzmə/ is a canyon on Mars, the widest segment of the Valles Marineris canyon system, located east of Ius Chasma at 9.8°S, 283.6°E in Coprates quadrangle. It cuts through layered deposits that are thought to be sediments from an old lake that resulted from runoff of the valley networks to the west. Other theories include windblown sediment deposits and volcanic ash. Support for abundant, past water in Melas Chasma is the discovery by MRO of hydrated sulfates. In addition, sulfate and iron oxides were found by the same satellite. Although not chosen as one of the finalists, it was one of eight potential landing sites for the Mars 2020 rover, a mission with a focus on astrobiology. The floor of Melas Chasma is about 70% younger massive material that is thought to be volcanic ash whipped up by the wind into eolian features. It also contains rough floor material from the erosion of the canyon walls. Around the edges of Melas is also much slide material. In a recent study of southwestern Melas Chasma using high-resolution image, topographic and spectral datasets eleven fan-shaped landforms were found. These fans add to growing evidence that Melas Chasma once held a lake that had fluctuating levels. Using HiRISE images, CTX images, and DEM's, a team of researchers mapped many channels and inverted channels in Melas Chasma. A digital elevation model (DEM) is a digital model or 3D representation of a terrain's surface. In addition, they found dendritic networks of channels in the plateaus just above the Chasma. Channels appeared to have formed at different times, hence there were "wet-dry" phases in the history of Melas Chasma. The whole region may have had liquid water for extended periods in the early Hesperian.
* Combined infrared and daytime observation of Melas Chasma. The shadowed regions (blue) indicate successive landslides.
* Cliff in Melas Chasma, as seen by THEMIS. Click on image to see relationship of Melas to other features.
* Two views of Melas Chasma Layered Deposits, as seen by HiRISE. Left picture lies north of other picture on the right. Pictures are not the same scale. Click on image to see details of layers.
* Layers in Monument Valley. These are accepted as being formed, at least in part, by water deposition. Since Mars contains similar layers, water remains as a major cause of layering on Mars. (en)
|
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)
