1-20 OF 195 RESULTS FOR

Viking Mission

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article
Published: 01 July 2008
Geological Magazine (2008) 145 (4): 599.
... and bringing together this book of chapters on geological processes common to Earth and Mars. The book is timely. After a long time gap between the NASA Viking mission that arrived at Mars in 1976, we are now embarking on a comprehensive programme of investigation of the Red Planet. Viking had the task...
Journal Article
Published: 01 October 2016
Earth Sciences History (2016) 35 (2): 399–403.
... in the Viking missions in the mid-1970s, which included twin landers sent to find traces of life. Lambright calls the Viking program the second period of policymaking for Mars. After the Viking 2 landed on Mars, NASA would not send another mission to the planet until the early 1990s, a long hiatus...
Journal Article
Published: 01 June 2022
Italian Journal of Geosciences (2022) 141 (2): 245–258.
.... Temperature : Maximum temperature at latitude 0, altitude 0: 35 °C (Viking missions data) Maximum temperature al latitude 90, altitude 0: -60 °C (Viking missions data) Average daily temperature range: 65 °C (Viking and Pathfinder data) Longitudinal gradient on the surface: 1.06 °C per degree...
FIGURES | View All (9)
Series: Geological Society, London, Special Publications
Published: 01 January 2002
DOI: 10.1144/GSL.SP.2002.192.01.03
EISBN: 9781862394407
... crust that were projected to the Earth by impacts on the Moon. Similarly, analyses of the Martian surface soils and atmosphere by the Viking and Pathfinder missions led to the identification of meteorite fragments ejected by hypervelocity impacts on Mars. Images of Mars displayed land-forms wrought...
FIGURES | View All (15)
Series: Geological Society, London, Special Publications
Published: 01 January 2011
DOI: 10.1144/SP356.2
EISBN: 9781862396043
... were discovered on the southern highlands and at the equator, providing the first conclusive evidence that liquid once flowed across the surface of the planet. Measurements from the two Viking Orbiter missions launched in 1975 confirmed that the modern Martian atmosphere was thin and very dry...
FIGURES | View All (7)
Journal Article
Journal: Elements
Published: 01 June 2017
Elements (2017) 13 (3): 187–191.
... to facilitate their formation. NASA's Viking missions of the mid-1970s first detected coatings on the surface of Mars, a finding later replicated by the NASA rovers Spirit and Curiosity ( Fig. 1 ). These observations help bolster a rich subfield of research exploring the biological influence on rock varnish...
FIGURES | View All (4)
Journal Article
Published: 26 September 2023
Journal of the Geological Society (2023) 180 (5): jgs2022-152.
... in situ organic geochemical technique employed on Mars, having been used on the Viking landers ( Biemann et al. 1976 ), the Phoenix mission ( Guinn et al. 2008 ; Hecht et al. 2009 ; Kounaves et al. 2009 ; Ming et al. 2009 ) and the Mars Science Laboratory Curiosity rover ( Grotzinger et al...
FIGURES | View All (6)
Journal Article
Journal: Geology
Published: 01 September 2003
Geology (2003) 31 (9): 757–760.
... in resolution and clarity of the Martian surface. Global image data from Viking missions have been available at 1/256 of a degree (0.2314 km/pixel) in the form of a Mars Digital Image Map (MDIM), of which several versions are now available. These data have been used as the standard products for nearly all...
FIGURES
Journal Article
Published: 09 November 2021
Bulletin of the Seismological Society of America (2021) 111 (6): 2883–2888.
...Philippe Lognonné; Sharon Kedar; Victor C. Tsai This already impressive series of missions with seismometers over the next decade may be complemented by new missions, if selected, such as the Europa lander (e.g.; Burke et al. , 2020 ; Kedar et al. , 2020 ), the Lunar Geophysical mission...
FIGURES
Journal Article
Journal: Elements
Published: 01 April 2010
Elements (2010) 6 (2): 107–112.
... ). Almost forty years ago, X-ray fluorescence analyses from the Viking missions revealed that Mars has S- and Cl-rich surface regoliths or “soils” ( Clark et al. 1976 ). No S-speciation data were collected, but the red color of the soils suggested that S 6+ likely predominates and that the S is hosted...
FIGURES | View All (6)
Journal Article
Journal: Geology
Published: 01 September 2014
Geology (2014) 42 (9): 755–758.
... the surface of Mars has soil, but whether Martian soil is or was alive. There is no current indication of life on Mars, and surface soil profiles at Chryse and Utopia Planitiae explored by the Viking missions are too clayey for current hyperarid and hyperfrigid Mars surface conditions ( Amundson et al., 2008...
FIGURES | View All (4)
Journal Article
Journal: AAPG Bulletin
Published: 01 June 1955
AAPG Bulletin (1955) 39 (6): 1092–1108.
... in Alberta were made in the Belly River, Cardium, Viking, Blairmore, Madison—including successes in this formation in the Plains, Foothills, and in the Rocky Mountains—and Devonian reservoirs. Successes were scored in southwestern Saskatchewan in the Viking and in Jurassic formations. A new oil pay zone...
FIGURES
Journal Article
Journal: The Leading Edge
Published: 01 August 2003
The Leading Edge (2003) 22 (8): 766–768.
... missions) by collecting small magnetic particles with strong magnets that were part of the experiment packages on the Viking (1976) and Pathfinder (1996) landers. This resulted in a list of potential magnetic mineral candidates—notably metallic iron, magnetite and/or titanomagnetite, maghemite...
FIGURES
Journal Article
Journal: Elements
Published: 01 February 2015
Elements (2015) 11 (1): 51–56.
... in situ measurements of isotope ratios in a variety of gases provided by instruments on the Viking missions ( Biemann et al. 1976 ), ground-based spectroscopy (e.g. Krasnopolsky et al. 2007 ), and analysis of Martian meteorites (e.g. Bogard et al. 2001 ) were refined during the early stages of the MSL...
FIGURES | View All (8)
Journal Article
Journal: Geosphere
Published: 01 December 2007
Geosphere (2007) 3 (6): 435–455.
...), Spirit and Opportunity, that are currently exploring the Martian surface. These current missions continue to acquire data that complement that acquired by previous missions such as Viking (1970s), and the more recent Mars Pathfinder and Mars Global Surveyor Missions (1990s). Each of the spacecraft...
FIGURES | View All (19)
Journal Article
Journal: AAPG Bulletin
Published: 01 June 1957
AAPG Bulletin (1957) 41 (6): 1290–1302.
... with an initial potential of 288 BOPD. The Mississippian oil and gas fields of the Harmattan-Elkton area were extended considerably during 1956. Discoveries of gas and oil, particularly gas, in the Viking formation were made in many areas of Alberta and western Saskatchewan. Oil was also discovered...
FIGURES | View All (4)
Journal Article
Published: 31 October 2024
Seismological Research Letters (2025) 96 (1): 377–393.
... conclude, in the vain of the lessons learned from the Viking seismic experiment, with a recommendation from the InSight mission: for seismology on Mars to maximize gain, the seismometer should not only be placed on the ground but needs to be removed from full‐scale environmental exposure through proper...
FIGURES | View All (9)
Journal Article
Journal: The Leading Edge
Published: 01 October 2007
The Leading Edge (2007) 26 (10): 1308–1311.
... for extended periods of up to perhaps a billion years. This paper reviews what has been learned from spacecraft missions about the initial volatile inventories (especially water) at Venus and Mars in comparison with the Earth, and delineates the processes discovered to be responsible for volatile losses...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1996
AAPG Bulletin (1996) 80 (2): 248–264.
..., but discharging in the northeast into adjacent aquifers through confining aquitards. The Lower Cretaceous Viking aquifer is a partially closed system, being confined by Cretaceous aquitards except for a small recharge area exposed at the Black Hills uplift and narrow discharge area in the Dakotas. The Upper...
FIGURES | View All (13)
Journal Article
Journal: Elements
Published: 01 February 2015
Elements (2015) 11 (1): 39–44.
... from four landing sites, covering more than 50 km of traverse on diverse terrain, allow detailed assessment of the geology of Mars. Here we discuss the APXS method and instrument as well as some of the results from the current MER and MSL missions. The APXS irradiates a sample with alpha...
FIGURES | View All (8)