Search results

Jump to: navigation, search
  • ...ypical weathering products of mafic igneous rocks. The dark, igneous rock basalt is believed to make up much of the surface of Mars, as it does for the Eart ...could be magnetite and maghemite. These could come from the weathering of basalt rock.<ref>Hargraves, R. et al. 1976. Viking Magnetic Properties Investigat
    16 KB (2,517 words) - 16:08, 8 February 2019
  • ...basalt layer is of Amazonian age--about 1.7 billion years old. The lower basalt layer is of Hesperian age (3.6 billion years old).<ref>https://scitechdaily
    27 KB (4,155 words) - 06:44, 1 January 2024
  • ...d terrain. The surface of this terrain has been suggested to be pack ice, basalt lava, or muddy flows. HiRISE images show the heights of the surface ridges ...to their hardness. These boulders are probably made of the volcanic rock basalt since it is hard and is widespread on Mars. Some layers may be caused by r
    18 KB (2,848 words) - 16:04, 24 December 2023
  • ...could be magnetite and maghemite. These could come from the weathering of basalt rock.<ref>Hargraves, R. et al. 1976. Viking Magnetic Properties Investigat
    19 KB (2,910 words) - 17:58, 24 December 2023
  • ...hile TARs and dunes both seem to be composed of the dark volcanic mineral basalt.
    8 KB (1,111 words) - 05:29, 10 September 2022
  • .... Science: 306. 1723-1726.</ref> Most of the soil consisted of olivine basalt sands that did not come from the local rocks. The sand was probably transp ...</ref> Minerals in the rocks could have originated by acid weathering of basalt. If there were acid-rich fluids, it would be more difficult for life to ha
    21 KB (3,231 words) - 07:10, 7 January 2020
  • .... Science: 306. 1723-1726.</ref> Most of the soil consisted of olivine basalt sands that did not come from the local rocks. The sand was probably transp ...</ref> Minerals in the rocks could have originated by acid weathering of basalt. If there were acid-rich fluids, it would be more difficult for life to ha
    38 KB (5,857 words) - 15:46, 24 December 2023
  • ...s of igneous rocks have been found there with orbiting spacecraft. Besides basalt, dacite and granite have been found there. Dacite originates under volcanoe ...wind blowing dust around. Sometimes, fine bright dust settles on the dark basalt rock making the surface appear lighter, at other times the light-toned dust
    21 KB (3,097 words) - 15:11, 8 May 2023
  • Basalt group minerals are common on Mars, but radioactive ores are not normally fo
    13 KB (2,091 words) - 19:37, 29 November 2022
  • ...s olivine, pyroxene, plagioclase, and magnetite. They look like volcanic basalt as they are fine-grained with irregular holes .<ref>McSween, etal. 2004. "B ...ef> It is commonly thought that Mars was first covered with the dark rock basalt. Over billions of years, the original rocks were broken down. By studying
    51 KB (7,713 words) - 06:14, 11 April 2024
  • ...Volcanism on Mars. Journal of Geophysical Research. 78 : 4049–4062.</ref> Basalt is rich in iron and magnesium (mafic) [[ minerals]] and typically dark in ...they just pile up on one another. Lava flows on Mars are usually of the basalt variety. Such flows can spread over wide areas because they are so fluid.
    29 KB (4,380 words) - 08:10, 15 May 2021
  • File:Layered area with faults ESP 26270 1820.jpg|Layers Dark parts are basalt sand that has settled on horizonal surfaces. ...iew of layers. Light brown is from dust falling from sky. Dark parts are basalt sand that has settled on horizonal surfaces.
    34 KB (5,229 words) - 09:43, 26 February 2024
  • ...Basalt, a volcanic rock, is thought to in the layers that form boulders. Basalt has been identified on Mars in many places. Instruments on orbiting spacec
    29 KB (4,450 words) - 10:40, 11 April 2024
  • ...r of dust can move away and reveal a dark surface. The dark volcanic rock basalt lies under the lighter-toned dust which falls out of the atmosphere.
    18 KB (2,669 words) - 10:54, 14 January 2024
  • ...ught dark dunes were composed of the grains of sand from the volcanic rock basalt; this was confirmed by rovers on the surface.<ref>Lorenz, R. and J. Zimbel File:Layered area with faults ESP 26270 1820.jpg|Layers Dark parts are basalt sand that has settled on horizonal surfaces.
    65 KB (9,935 words) - 10:41, 11 April 2024
  • ...ost dunes on Mars are black because of the weathering of the volcanic rock basalt.<ref>http://hirise.lpl.arizona.edu/ESP_016459_1830</ref> <ref> Michael H. C
    16 KB (2,580 words) - 05:51, 14 March 2024
  • ...and create what appear to be layers, especially if it behaves like water. Basalt flows are very fluid.<ref>https://www.uahirise.org/ESP_057978_1875</ref> ...Most of Mars is covered with hard volcanic rock. The dark volcanic rock basalt covers most of the Martian surface. When it breaks, it first forms large b
    81 KB (12,252 words) - 10:42, 11 April 2024
  • ...ost dunes on Mars are black because of the weathering of the volcanic rock basalt.<ref>http://hirise.lpl.arizona.edu/ESP_016459_1830</ref> <ref name>Michael
    18 KB (2,705 words) - 15:55, 24 December 2023
  • The dark, igneous rock basalt is believed to make up much of the surface of Mars, as it does for the Eart ...could be magnetite and maghemite. These could come from the weathering of basalt rock.<ref>Hargraves, R. et al. 1976. Viking Magnetic Properties Investigat
    37 KB (5,472 words) - 16:15, 3 November 2020
  • ...ers in canyon walls may be due to dark lava flows. The dark volcanic rock basalt dominates the Martian surface. However, light-toned deposits appear in man
    26 KB (4,014 words) - 08:58, 1 January 2024
  • ...Mars as being mostly made of volcanic materials, especially the dark rock basalt which comes out of volcanoes. Mars has many huge volcanoes so this is to b We also found that many of the minerals that weather from basalt. By studying these minerals we can arrive at conclusions about the past co
    67 KB (10,016 words) - 06:21, 23 August 2023
  • ...ngs as dark sand dunes. Dark sand dunes probably contain the igneous rock basalt.<ref>Michael H. Carr|title=The surface of Mars|url=https://books.google.com
    26 KB (3,907 words) - 18:00, 23 December 2023
  • ...hrough weakly altered olivine basalt on the plains and pervasively altered basalt in the Columbia Hills https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1
    80 KB (12,727 words) - 12:45, 26 May 2020
  • ...ntle does not seem to break up into boulders. Boulders would suggest hard basalt to drill through.
    42 KB (6,301 words) - 14:48, 27 March 2024
  • ...ost dunes on Mars are black because of the weathering of the volcanic rock basalt.<ref>http://hirise.lpl.arizona.edu/ESP_016459_1830</ref> <ref>Michael H. Ca
    41 KB (6,106 words) - 10:20, 29 December 2023
  • ...ost dunes on Mars are black because of the weathering of the volcanic rock basalt.<ref>http://hirise.lpl.arizona.edu/ESP_016459_1830</ref> <ref>Michael H. Ca
    70 KB (10,556 words) - 06:01, 28 March 2024
  • ...pling of the mountains to the west of this area during the Upper Jurassic. Basalt, greenstones, chert, diorite, and quartzites are the most common lithologie
    173 KB (29,116 words) - 08:06, 29 October 2019

View (previous 250 | next 250) (20 | 50 | 100 | 250 | 500)