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Margaritifer Terra (/ˌmɑːrɡəˈrɪtəfər ˈtɛrə/) is an ancient, heavily cratered region of Mars. It is centered just south of the Martian equator at 4°54′S 25°00′W / 4.9°S 25°W and covers 2600 km at its widest extent. The area reveals "chaos terrain", outflow channels, and alluvial plains that are indicative of massive flooding. Wind erosion patterns are also in evidence. A region within the terra shows some of the highest valley network densities on the planet. Ares Vallis is another notable feature, where the flood and flow patterns are in evidence; it was the landing site of the Soviet Mars 6 lander and NASA's Mars Pathfinder. It is also one of several proposed landing sites for the Mars 2020 Rover.

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  • Margaritifer Terra (en)
  • Margaritifer Terra (ca)
  • Margaritifer Terra (fr)
  • Margaritifer Terra (it)
  • Margaritifer Terra (pt)
  • Жемчужная земля (ru)
  • 珍珠高地 (zh)
rdfs:comment
  • Margaritifer Terra és una formació geològica de tipus terra a la superfície de Mart, localitzada amb el sistema de coordenades planetocèntriques a 19.71 latitud N i 350.56 ° longitud E, que fa 2.733,22 km de diàmetre. El nom va ser aprovat per la UAI l'any 1979 i fa referència a una característica d'albedo. (ca)
  • La Margaritifer Terra è un'antica regione di Marte, caratterizzata da una grande quantità di crateri. Si trova a sud dell'equatore marziano e si estende fino a 2600 km di lunghezza. Le caratteristiche principali sono il cosiddetto "chaos terrain", i canali di deflusso e le pianure alluvionali, segnali tipici di una massiccia inondazione. Sono presenti inoltre segnali dell'erosione dovuta ai venti. (it)
  • 珍珠高地(Margaritifer Terra),或譯珍珠灣高地,是火星上一处古老而崎岖的区域,它位于赤道以南4°54′S 25°00′W / 4.9°S 25°W 处,最宽处横跨2600公里。该区域显露出表明存在过大规模洪泛的混沌地形、溢出河道和冲积平原;风蚀地貌也很明显。该高地内还是火星上几处河谷网最密集的区域之一,而阿瑞斯谷则是另一个提供了明显洪水和水流证据的突出特征。珍珠高地曾是前苏联“火星6号”着陆器和美国宇航局“火星探路者号”探测器的降陆点 ,也是火星2020探测车几处拟议的着陆点之一。 坐落在珍珠高地上的霍顿撞击坑和埃伯斯瓦尔德撞击坑,被认为曾拥有过湖泊,因为坑内分布有三角洲和需要水才能形成的铁/镁质蒙脱石矿物。在珍珠高地还发现了乌斯钵-拉冬-摩拉瓦谷系统的水流路径,研究人员认为,该地区巨大的洪水河道仅在短短数周或数月内就被地下水灾难性的外溢迅速冲蚀。由于形成赤铁矿需要液态水,而液态水如果没有厚厚的大气层就不可能长期存在,所以火星在过去的某个时候,大气层一定要更厚得多。 1979年,珍珠高地被以南印度“珍珠海岸”之名命名,它部分位于珍珠湾区,部分则位于奥克夏沼区中。 * 火星轨道器激光高度计地图显示了珍珠高地与其它区域的分界,颜色代表高程。 (zh)
  • Margaritifer Terra (/ˌmɑːrɡəˈrɪtəfər ˈtɛrə/) is an ancient, heavily cratered region of Mars. It is centered just south of the Martian equator at 4°54′S 25°00′W / 4.9°S 25°W and covers 2600 km at its widest extent. The area reveals "chaos terrain", outflow channels, and alluvial plains that are indicative of massive flooding. Wind erosion patterns are also in evidence. A region within the terra shows some of the highest valley network densities on the planet. Ares Vallis is another notable feature, where the flood and flow patterns are in evidence; it was the landing site of the Soviet Mars 6 lander and NASA's Mars Pathfinder. It is also one of several proposed landing sites for the Mars 2020 Rover. (en)
  • Margaritifer Terra est une vaste région martienne de terrains anciens et fortement cratérisés. Elle se trouve à l'« embouchure » de Valles Marineris, entre Xanthe Terra (à l'ouest), Noachis Terra (au sud), Arabia Terra (à l'est) et Chryse Planitia (au nord). Elle est centrée par 4,15° S, 335° E, juste au sud de l'équateur Martien et couvre 2600 km dans sa plus grande largeur. C'est une zone composée de nombreux terrains chaotiques, , et de plaines alluviales. Ces formations sont les signes d'anciennes crues. Des formes d'érosion par le vent ont aussi été mis en évidence. Une région au sein de Margaritifer Terra montre quelques-unes des plus fortes densités de réseaux de vallées sur la planète. Ares Vallis est un autre lieu remarquable, possédant de nombreuses marques d'ancienne activité aq (fr)
  • Margaritifer Terra é uma região antiga e repleta de crateras em Marte. Ela está centrada pouco a sul do equador marciano, a 4.9° S 25° W, e cobre uma área de 2.600 km em sua extensão máxima. Esta área exibe "terreno caótico", , e planícies aluviais a presença dessas formações geológicas indica inundações gigantescas. Padrões de erosão eólica também estão em evidência. Uma região dentro desta terra exibe algumas das maiores densidades de redes de vales no planeta. Ares Vallis é outra formação geológica notável, onde os padrões de fluxo estão em evidência; esta região foi o local de aterrissagem das sondas Mars 6 e Mars Pathfinder da NASA. (pt)
  • Жемчужная земля (лат. Margaritifer Terra) — древняя, сильно кратерированная область на поверхности Марса. Диаметр — 2733,22 км, координаты центра — 2° ю. ш. 25° з. д. / 2° ю. ш. 25° з. д.. Граничит с (на востоке), (на юге), землёй Ксанфа (на западе) и равниной Хриса (на северо-западе). Жемчужная земля получила название в 1979 году. Оно связано с именем близлежащей детали альбедо Жемчужный залив (Margaritifer Sinus), а оно, в свою очередь, может быть связано с тем, что этот залив напоминает по форме полуостров Индостан, возле которого добывают жемчуг. (ru)
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  • -4.9 -25.0
has abstract
  • Margaritifer Terra és una formació geològica de tipus terra a la superfície de Mart, localitzada amb el sistema de coordenades planetocèntriques a 19.71 latitud N i 350.56 ° longitud E, que fa 2.733,22 km de diàmetre. El nom va ser aprovat per la UAI l'any 1979 i fa referència a una característica d'albedo. (ca)
  • Margaritifer Terra (/ˌmɑːrɡəˈrɪtəfər ˈtɛrə/) is an ancient, heavily cratered region of Mars. It is centered just south of the Martian equator at 4°54′S 25°00′W / 4.9°S 25°W and covers 2600 km at its widest extent. The area reveals "chaos terrain", outflow channels, and alluvial plains that are indicative of massive flooding. Wind erosion patterns are also in evidence. A region within the terra shows some of the highest valley network densities on the planet. Ares Vallis is another notable feature, where the flood and flow patterns are in evidence; it was the landing site of the Soviet Mars 6 lander and NASA's Mars Pathfinder. It is also one of several proposed landing sites for the Mars 2020 Rover. Holden and Eberswalde, craters in Margaritifer Terra, are thought to have formerly held lakes because they contain deltas and iron/magnesium smectite minerals which need water to form. The Uzboi-Landon-Morava (ULM) system of paths for water flow is found in Margaritifer Terra. Researchers think that great flood channels in this region were carved quickly in just weeks or months by catastrophic outflows of groundwater. Because forming hematite requires liquid water, which could not long exist without a thick atmosphere, Mars must have had a much thicker atmosphere at some time in the past. Margaritifer Terra was named in 1979, after the Pearl Coast, south India. Part of it is found in the Margaritifer Sinus quadrangle and part in the Oxia Palus quadrangle. (en)
  • Margaritifer Terra est une vaste région martienne de terrains anciens et fortement cratérisés. Elle se trouve à l'« embouchure » de Valles Marineris, entre Xanthe Terra (à l'ouest), Noachis Terra (au sud), Arabia Terra (à l'est) et Chryse Planitia (au nord). Elle est centrée par 4,15° S, 335° E, juste au sud de l'équateur Martien et couvre 2600 km dans sa plus grande largeur. C'est une zone composée de nombreux terrains chaotiques, , et de plaines alluviales. Ces formations sont les signes d'anciennes crues. Des formes d'érosion par le vent ont aussi été mis en évidence. Une région au sein de Margaritifer Terra montre quelques-unes des plus fortes densités de réseaux de vallées sur la planète. Ares Vallis est un autre lieu remarquable, possédant de nombreuses marques d'ancienne activité aquatique. Cette dernière fut le site d’atterrissage de la sonde soviétique Mars 6 et de la mission Mars Pathfinder de la NASA . Deux cratères de Margaritifer Terra, Holden et Eberswalde, sont considérés comme étant d'anciens lacs car ils contiennent des deltas et présentent des traces de minéraux de fer/magnésium smectites qui ont besoin d'eau pour leur formation . Son nom viendrait du nom latin de la côte des pêcheurs de perles[réf. souhaitée]. (fr)
  • La Margaritifer Terra è un'antica regione di Marte, caratterizzata da una grande quantità di crateri. Si trova a sud dell'equatore marziano e si estende fino a 2600 km di lunghezza. Le caratteristiche principali sono il cosiddetto "chaos terrain", i canali di deflusso e le pianure alluvionali, segnali tipici di una massiccia inondazione. Sono presenti inoltre segnali dell'erosione dovuta ai venti. (it)
  • Margaritifer Terra é uma região antiga e repleta de crateras em Marte. Ela está centrada pouco a sul do equador marciano, a 4.9° S 25° W, e cobre uma área de 2.600 km em sua extensão máxima. Esta área exibe "terreno caótico", , e planícies aluviais a presença dessas formações geológicas indica inundações gigantescas. Padrões de erosão eólica também estão em evidência. Uma região dentro desta terra exibe algumas das maiores densidades de redes de vales no planeta. Ares Vallis é outra formação geológica notável, onde os padrões de fluxo estão em evidência; esta região foi o local de aterrissagem das sondas Mars 6 e Mars Pathfinder da NASA. Acredita-se que as crateras Holden e Eberswalde em Margaritifer Terra sejam remanescentes de lagos antigos por exibirem deltas e o mineral esmectita de ferro e magnésio, que necessita de água para se formar. Margaritifer Terra recebeu este nome em 1979, em referência à Costa da Pérola, sul da Índia. (pt)
  • Жемчужная земля (лат. Margaritifer Terra) — древняя, сильно кратерированная область на поверхности Марса. Диаметр — 2733,22 км, координаты центра — 2° ю. ш. 25° з. д. / 2° ю. ш. 25° з. д.. Граничит с (на востоке), (на юге), землёй Ксанфа (на западе) и равниной Хриса (на северо-западе). В этой области сосредоточены хаосы, каналы и аллювиальные равнины, которые указывают на большие наводнения в прошлом. Это подтверждает и наличие эоловых отложений. Область имеет одну из самых плотных сетей долин на планете. В этом регионе совершили посадку такие исследовательские аппараты, как советская «Марс-6» и американская «Марс Пасфайндер». В кратерах Холден и Эберсвальде, находящихся на Жемчужной земле, вероятно, некогда были озёра, так как там видны речные дельты, а также обнаружены магнезиально-железистые смектиты — образование этих веществ без участия воды невозможно. Жемчужная земля получила название в 1979 году. Оно связано с именем близлежащей детали альбедо Жемчужный залив (Margaritifer Sinus), а оно, в свою очередь, может быть связано с тем, что этот залив напоминает по форме полуостров Индостан, возле которого добывают жемчуг. (ru)
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