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Examining Mars, near and Far : = Using Rover and Orbiter Data to Constrain Ancient Histories of Mars.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Examining Mars, near and Far :/
其他題名:	Using Rover and Orbiter Data to Constrain Ancient Histories of Mars.
作者:	Weintraub, Aaron Robert.
面頁冊數:	1 online resource (229 pages)
附註:	Source: Dissertations Abstracts International, Volume: 84-07, Section: B.
Contained By:	Dissertations Abstracts International84-07B.
標題:	Planetology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30243426click for full text (PQDT)
ISBN:	9798368419404

Examining Mars, near and Far : = Using Rover and Orbiter Data to Constrain Ancient Histories of Mars.
Weintraub, Aaron Robert.

Examining Mars, near and Far :Using Rover and Orbiter Data to Constrain Ancient Histories of Mars. - 1 online resource (229 pages)

Source: Dissertations Abstracts International, Volume: 84-07, Section: B.

Thesis (Ph.D.)--Northern Arizona University, 2022.

Includes bibliographical references

Sedimentary structures are incredibly useful in planetary studies as their characteristics are diagnostic of the environmental conditions experienced during their formation. The effects of water and climate on a surface are intricately recorded in their morphology, composition, and thermophysical character. Observations from orbiting spacecraft, landers, and rovers are critical in elucidating how we view planetary surfaces beyond our own. This dissertation utilizes passive remote sensing techniques, computational modeling, and geologic analyses to determine the evolution of surfaces and surface features on Mars. We used a wide variety of instruments and techniques to successfully constrain surface conditions and environments on ancient Mars. We accomplished this by first characterizing the thermophysical and compositional properties of a class of ancient, lithified sedimentary structures - or paleobedforms - found across Mars. We determined paleobedforms on Mars likely formed in an environment with low water-rock ratio by applying cement volume modeling to each paleobedform site. During this study we generated a novel technique to determine the thermophysical heterogeneity of planetary surfaces. We built on this study by conducting a ground truth experiment in which we applied the novel technique to rover observations at the Mars Science Laboratory landing site in Gale crater. During this ground truth experiment we characterized the thermophysical properties of a feature known as the Greenheugh pediment, the surface of which is a candidate paleobedform field. This characterization sheds light on the environmental conditions during a potentially life-sustaining period on Mars. Finally, we continue to build on our work by using all previously established remote sensing and computational techniques to determine the influence of regional geology on the fluvial history of a unique valley network on Mars called Licus Vallis. This region was investigated through geologic mapping, incorporating both thermal and visible datasets, to determine why Licus Vallis has uniquely preserved fluvial terraces. We discovered prolonged overland flow was required to explain the geomorphology and thermophysical properties of Licus Vallis, indicating more water in the region than previously suggested.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798368419404Subjects--Topical Terms:

546174
Planetology.
Subjects--Index Terms:

CementationIndex Terms--Genre/Form:

542853
Electronic books.

Examining Mars, near and Far : = Using Rover and Orbiter Data to Constrain Ancient Histories of Mars.
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