Constraints on the origin and evolution of the layered mound in Gale Crater, Mars using Mars Reconnaissance Orbiter data

Thomson, Bradley J.; Bridges, N. T.; Milliken, R. E.; Baldridge, A. M.; Hook, Simon J.; Crowley, John S.; Marion, G. M.; Filho, Carlos Roberto de Souza; Brown, Adrian; Weitz, C.

doi:10.1016/j.icarus.2011.05.002

Cited by 289 publications

(394 citation statements)

References 59 publications

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“…Based on estimates of impact crater retention per unit area on terrain inside Gale and on its primary ejecta blanket, the Gale-forming impact was interpreted by Thomson et al (2011) to have occurred ∼3.8 billion years ago, with strata comprising Mount Sharp perhaps deposited during the subsequent 200-300 million years. If this interpretation is correct, then strata in the lower part of the mountain would date to a time corresponding with the earliest-and sometimes disputed-records of life on Earth (Mojzsis et al 1996;Altermann and Kazmierczak 2003;Brasier et al 2006;Schopf 2006).…”

Section: Fig 1 Location Of Mahli Hardware Aboard the Mars Science Lamentioning

confidence: 99%

Curiosity’s Mars Hand Lens Imager (MAHLI) Investigation

et al. 2012

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The Mars Science Laboratory (MSL) Mars Hand Lens Imager (MAHLI) investigation will use a 2-megapixel color camera with a focusable macro lens aboard the rover, Curiosity, to investigate the stratigraphy and grain-scale texture, structure, mineralogy, and morphology of geologic materials in northwestern Gale crater. Of particular interest is the stratigraphic record of a ∼5 km thick layered rock sequence exposed on the slopes of Aeolis Mons (also known as Mount Sharp). The instrument consists of three parts, a camera head mounted on the turret at the end of a robotic arm, an electronics and data storage assembly located inside the rover body, and a calibration target mounted on the robotic arm shoulder azimuth actuator housing. MAHLI can acquire in-focus images at working distances from ∼2.1 cm to infinity. At the minimum working distance, image pixel scale is ∼14 µm per pixel and very coarse silt grains can be resolved. At the working distance of the Mars Exploration Rover Microscopic Imager cameras aboard Spirit and Opportunity, MAHLI's resolution is comparable at ∼30 µm per pixel. Onboard capabilities include autofocus, autoexposure, sub-framing, video imaging, Bayer pattern color interpolation, lossy and lossless compression, focus merging of up to 8 focus stack images, white light and longwave ultraviolet (365 nm) illumination of nearby subjects, and 8 gigabytes of non-volatile memory data storage.

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Section: Fig 1 Location Of Mahli Hardware Aboard the Mars Science Lamentioning

confidence: 99%

Curiosity’s Mars Hand Lens Imager (MAHLI) Investigation

et al. 2012

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“…Gale crater is a large Martian impact crater ~154 km in diameter centred at 5 [7]. Gale crater lies on north-south dichotomy boundary [17] [7], which is the topographic discontinuity that divides the heavily cratered uplands from the smoother and low-elevation northern lowlands [7].…”

Section: Gale Cratermentioning

confidence: 99%

“…Gale crater lies on north-south dichotomy boundary [17] [7], which is the topographic discontinuity that divides the heavily cratered uplands from the smoother and low-elevation northern lowlands [7]. The central mound of Gale crater is named as 'Aeolis Mons' (informally called as Mount Sharp), which is approximately 100km wide and 5 kilo meters height and represents the 'thickest exposed stratigraphic reference section for environmental change on Mars' stated by Grotzinger & Milliken, 2012 [16].…”

Section: Gale Cratermentioning

confidence: 99%

Extraction of aqueous minerals on Mars using CRISM based Targeted Reduced Data Records

Gurunadham

Kumar

2014

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Many scientific studies have been carried out to extract the aqueous mineral signatures on the surface of Mars, which has a record of all minerals such as silicates form by magmatic processes and aqueous minerals in the presence of watery environment. To observe these watery conditions, a visible/shortwave infrared mineral mapping camera on Mars Reconnaissance Orbiter (MRO) called Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is used. The aim of this research is to extract the aqueous minerals on Mars using CRISM sensor. Gale Crater is selected for this study because of its past liquid water history.Gale is ~154 km in diameter and centered near 5.3 0 S, 138 0 E. Gale Crater has an interior mound named as 'Aeolis Mons', which is nearly 100 km wide and 5 km high, consisting of layered sulfates and phyllosilicates. The CRISM reflectance (I/F) targeted reduced data records data of Gale crater, FRT000233AC, centred at 4 0 25'S and 137 0 20'E with high spatial (18 m, 35 m / pixel) and spectral resolution (362-1020 nm (VNIR), 1002-3920 nm (IR), 655 nm / channel) with 545 bands is acquired for this study. The detection and quantification of minerals has been carried out by using a model called modified Gaussian model (MGM). MGM is an approach that uses modified Gaussians in wave number space to model absorption shapes and fits them to a reflectance spectrum.

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“…6 Milliken et al, 2010 Bi-Bi-Bi-Bi-Bibring et al Thomson et al, 2011 2011 7 MSL , Jerolmack et al, 2004;Bhat-, Jerolmack et al, 2004;Bhat-, Jerolmack et al, 2004;Bhattacharya et al, 2005Bibring et al, 2006cm MSL , 2012 Contribution number 19…”

Section: °S 325°ementioning

confidence: 99%

火星の海・湖・アウトフローチャネルの比較惑星地質学

和久

吾郎

2012

Jour. Geol. Soc. Japan

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Recently obtained high-resolution satellite imagery has enabled the detailed study of Martian geology and sedimentology. The identification of hydrological features, such as ocean, lakes, valley networks, and outflow channels, on the ancient surface of Mars is critically important to assess the history of water on the planet and to improve our understanding of the Martian climate record. Increasing evidence supports the presence of Noachian age lakes and valley networks, and Hesperian age oceans and outflow channels, although whether these features were formed by liquid water is still controversial. Clay minerals, such as phyllosilicates, have been identified in Noachian sediments within purported paleo-crater lakes, consistent with a fluvial and/or lacustrine origin. These rocks have been targeted by US and European space agencies as possible landing sites for future rover missions, with an outcrop in a hypothesized paleo-crater lake basin selected as the landing site for the next National Aeronautics and Space Administration (NASA) expedition to Mars. Increasing the research contribution of terrestrial geologists during future Martian exploration is key, because determining terrestrial analogues for features on Mars is critically important for the interpretation of Martian geological data.

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Constraints on the origin and evolution of the layered mound in Gale Crater, Mars using Mars Reconnaissance Orbiter data

Cited by 289 publications

References 59 publications

Curiosity’s Mars Hand Lens Imager (MAHLI) Investigation

Curiosity’s Mars Hand Lens Imager (MAHLI) Investigation

Extraction of aqueous minerals on Mars using CRISM based Targeted Reduced Data Records

火星の海・湖・アウトフローチャネルの比較惑星地質学

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