J. E. Bleacher, R. Greeley, D. A. Williams, S. R. Cave, G. Neukum,
We mapped lava flows on the Tharsis Montes (Arsia Mons, Pavonis Mons, and Ascraeus Mons) using High Resolution Stereo Camera images that centrally transect each shield from north to south, ... into the late Amazonian eruptive history of the Tharsis Montes. The volcanoes are divided into their main flanks, ... that the most recent volcanic activity at the Tharsis Montes might have originated from a single, shared magma ...
Tópico(s): Geology and Paleoclimatology Research
2007 - American Geophysical Union | Journal of Geophysical Research Atmospheres
J. L. Fastook, J. W. Head, D. R. Marchant, F. Forget,
... found on the northwest flanks of the huge Tharsis Montes volcanoes in the tropics of Mars. Recent spacecraft ... of snow on the northwest flanks of the Tharsis Montes. We present a simulation of the Tharsis Montes ice sheets produced by a static accumulation pattern ...
Tópico(s): Geology and Paleoclimatology Research
2008 - Elsevier BV | Icarus
... W dike propagation, leading to the formation of Tharsis‐Montes‐like flanking lobes. The final stages of volcanic ... combined with the flanking lava lobes and the Tharsis‐Montes‐scale summit dome, make Alba Patera much more similar to the Tharsis Montes than to the Hesperian‐aged paterae. The Alba ...
Tópico(s): Geology and Paleoclimatology Research
2006 - American Geophysical Union | Journal of Geophysical Research Atmospheres
David Shean, J. W. Head, D. R. Marchant,
Each of the large Tharsis Montes volcanoes in the equatorial region of Mars has an unusual Amazonian‐aged fan‐shaped deposit on its west‐northwestern flank. ... water ice on the northwestern flanks of the Tharsis Montes during periods of high mean obliquity. Reconstructed ice sheet profiles for each of the Tharsis Montes glaciers suggest that the ice sheets attained average ...
Tópico(s): Polar Research and Ecology
2005 - American Geophysical Union | Journal of Geophysical Research Atmospheres
S. J. Kadish, J. W. Head, J. L. Fastook, D. R. Marchant,
... deposits (FSDs) extending to the northwest of the Tharsis Montes on Mars are the remnants of Amazonian-aged, ... best-fit crater retention ages for each entire Tharsis Montes FSD; these are ~220 Ma for the Ascraeus ...
Tópico(s): Astro and Planetary Science
2013 - Elsevier BV | Planetary and Space Science
Adnan Ahmad, R. R. Patel, Bhaswati Deka, Rohit Nagori, A. S. Arya, Archana M. Nair,
... surface mineralogy of caldera and flank regions of Tharsis Montes using remote spectral analysis. Though a thick layer ... minerals over the caldera and flank regions of Tharsis Montes. The spectral characterisation indicates the well-distributed presence ... index and low thermal inertia values in the Tharsis Montes, shows a high concentration of olivine. Few regions ... the secondary mafic minerals, especially the phyllosilicates on Tharsis Montes suggest active weathering or hydrothermal alteration from episodic ...
Tópico(s): Laser-induced spectroscopy and plasma
2022 - Elsevier BV | Icarus
Giovanni Leone, Pablo Grosse, Caitlin Ahrens, D. Gasparri,
... the loxodromic trajectory of the Alignment 3. • The Tharsis Montes (Ascraeus, Pavonis, and Arsia) are not shields as ... the Alignment 3 had its peak under the Tharsis Montes. • The age of the Tharsis Montes could be older than previously stated through crater ...
Tópico(s): Geology and Paleoclimatology Research
2022 - Elsevier BV | Geomorphology
S. J. Kadish, J.L. Head, Richard Parsons, David Marchant,
... extending to the northwest of each of the Tharsis Montes in the Tharsis region on Mars have been ... latitudes and deposited on the flanks of the Tharsis Montes. We assess how local orographic effects, the mass ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2008 - Elsevier BV | Icarus
K. E. Scanlon, J. W. Head, L. Wilson, D. R. Marchant,
... deposits (FSD) superposed on the sides of the Tharsis Montes volcanic edifices are widely interpreted to have been ... during the Late Amazonian, a period when the Tharsis Montes were volcanically active. We survey the ∼166,000 ...
Tópico(s): Polar Research and Ecology
2014 - Elsevier BV | Icarus
J. K. Harmon, M. C. Nolan, Diana I. Husmann, B. A. Campbell,
... deposits", possibly glacial, associated with the three major Tharsis Montes shields; various units of the Medusae Fossae Formation; ... broad expanse of flows extending east from the Tharsis Montes to Echus Chasma. The radar-bright lava plains ...
Tópico(s): Space Science and Extraterrestrial Life
2012 - Elsevier BV | Icarus
Kenneth L. Tanaka, M. G. Chapman,
... Mars. Major sequences of lava flows of the Tharsis Montes Formation and local, lobate plains flows were erupted ... induced by Tharsis magmatism, tectonic uplift centered at Tharsis Montes, and compaction of saturated crater ejecta due to ...
Tópico(s): Geology and Paleoclimatology Research
1990 - American Geophysical Union | Journal of Geophysical Research Atmospheres
Álvaro Márquez, Carlos Fernández, Francisco Anguita, A. F. Farelo, Jorge Anguita, M.Á. De la Casa,
... very slightly cratered (at MOC scales) surfaces of Tharsis Montes and surrounding regions seem to attest to active ... aureole deposits on the northwestern flanks of the Tharsis Montes shield volcanoes, are supported by new data. The ...
Tópico(s): Geology and Paleoclimatology Research
2004 - Elsevier BV | Icarus
Elizabeth R. Fuller, J. W. Head,
... least the Hesperian, as did activity on the Tharsis Montes. Emplacement of this ∼100 meter thick flow unit ... deposits created an eastern topographic barrier, and subsequent Tharsis Montes lava flows entered the basin from the south, ...
Tópico(s): Space Science and Extraterrestrial Life
2002 - American Geophysical Union | Journal of Geophysical Research Atmospheres
N. T. Bridges, M. E. Banks, R. A. Beyer, F. C. Chuang, E. Z. Noe Dobrea, K. E. Herkenhoff, L. Keszthelyi, K. E. Fishbaugh, A. S. McEwen, Timothy I. Michaels, Bradley J. Thomson, J. J. Wray,
... dust-rich mantle covering the surfaces of the Tharsis Montes is organized into ridges whose form and distribution ...
Tópico(s): Aeolian processes and effects
2009 - Elsevier BV | Icarus
P. J. McGovern, Sean C. Solomon,
... region, consistent with circumferential graben observed around the Tharsis Montes and with the scarp at the base of ... faulting which closely matches that observed on the Tharsis Montes, including the development of radial rifts on the ...
Tópico(s): High-pressure geophysics and materials
1993 - American Geophysical Union | Journal of Geophysical Research Atmospheres
James P. Cassanelli, James W. Head,
... a vast volcanic plateau which hosts the immense Tharsis Montes shield volcanoes. The Tharsis region is suggested by multiple lines of morphologic ...
Tópico(s): Astro and Planetary Science
2019 - Elsevier BV | Planetary and Space Science
T. Akabane, Takashi Nakakushi, Kyosuke Iwasaki, S. M. Larson,
... 120 °W, 10 °N) between Olympus Mons and Tharsis Montes, was the brightest among the morning clouds in Tharsis. Its optical thickness was about 0.6 near ...
Tópico(s): Astro and Planetary Science
2002 - EDP Sciences | Astronomy and Astrophysics
Robert C. Anderson, J. M. Dohm, M. P. Golombek, A. F. C. Haldemann, Brenda Franklin, Kenneth L. Tanaka, J. H. Lias, B. J. Peer,
... around Alba Patera, the northeast trending alignment of Tharsis Montes, and Olympus Mons appears centered on Alba Patera. Stage 5 structures (Middle‐Late Amazonian) represent the last pulse of Tharsis‐related activity and are found around the large ...
Tópico(s): Astro and Planetary Science
2001 - American Geophysical Union | Journal of Geophysical Research Atmospheres
R. A. Simpson, G. L. Tyler, D. B. Campbell,
... and 200°W, 0 and 12°S. From Tharsis Montes west to 160°W, radar-scattering characteristics suggest extreme roughness on small scales, perhaps exceeding 10° in rms magnitude. East of Tharsis and north of Valles Marineris the surface is ...
Tópico(s): Spaceflight effects on biology
1978 - Elsevier BV | Icarus
E. S. Shoemaker, Lynn M. Carter, W. B. Garry, G. A. Morgan, J. J. Plaut,
Abstract The Tharsis Montes volcanoes on Mars are the source of laterally extensive lava flows and other volcanic deposits generating a complex stratigraphy throughout the Tharsis Volcanic Province. We use SHAllow RADar (SHARAD) and Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) observations in ...
Tópico(s): Geology and Paleoclimatology Research
2022 - Wiley | Journal of Geophysical Research Planets
... Formation units or the basal units of the Tharsis Montes Formation (during the latter half of the Hesperian period). Comparison of topographic data with the locations of ridges demonstrates a good correlation between the topographic edge of the Tharsis rise and outer extent of ridge occurrence. Compressional ...
Tópico(s): Geological and Geochemical Analysis
1986 - American Geophysical Union | Journal of Geophysical Research Atmospheres
T. Platz, S. Münn, Thomas R. Walter, J. Procter, Patrick McGuire, A. Dumke, G. Neukum,
... shield volcano to the east of the major Tharsis Montes, has experienced a complex history of growth and destruction. On the basis of new high resolution images we analysed the morphology as well as the tectonic structures of the Tharsis Tholus volcano in detail. From morphological data, cross- ...
Tópico(s): Geology and Paleoclimatology Research
2011 - Elsevier BV | Earth and Planetary Science Letters
... loads alone, whereas the lithosphere beneath Olympus and Tharsis Montes cannot. Internal excess masses of at least 40%, and more likely 50%, of the topographic masses are required, and the lithosphere beneath must have an elastic core of ∼100–80 km to support these volcanoes. The mean thermal gradient beneath this region of Tharsis is estimated to be ∼7–10 K/km ...
Tópico(s): Geology and Paleoclimatology Research
2000 - American Geophysical Union | Journal of Geophysical Research Atmospheres
... TMG) deposits on the northwest flanks of the Tharsis Montes and Olympus Mons volcanoes are interpreted to be the record of ancient climates characteristic of Mars several hundred million years ago when planetary spin-axis obliquity was ~45°. During this era, polar volatiles (predominantly H2O) were mobilized and transferred equatorward, undergoing adiabatic cooling on the Tharsis volcano flanks, and precipitating snow and ice to ...
Tópico(s): Astro and Planetary Science
2014 - Elsevier BV | Planetary and Space Science
... in striking contrast to the giant shields of Tharsis Montes. Such different types of volcanic landforms may result from changes with times in the composition, differentiation history, eruption rates, and eruption temperatures of surface igneous rocks, thus, directly reflecting the thermal and chemical evolution of the interior. The low relief on the shields may also reflect a substantially thinner crust in these regions relative to Tharsis. The physiographic evidence and radar elevation data confirm ...
Tópico(s): Aeolian processes and effects
1982 - American Geophysical Union | Journal of Geophysical Research Atmospheres
... of formation of flexurally induced graben surrounding the Tharsis Montes and Alba Patera, while gradients and heat flow values of less than 5–6 K km −1 and 17–24 mW m −2 , respectively, characterized the lithosphere beneath the Isidis mascon and Olympus Mons at the time of emplacement of these loads. On the basis of the mean global thickness of the elastic lithosphere inferred to support the Tharsis rise and estimates of mantle heat production obtained ...
Tópico(s): High-pressure geophysics and materials
1990 - American Geophysical Union | Journal of Geophysical Research Atmospheres
C. L. Johnson, R. J. Phillips,
... demagnetization. The absence of magnetic anomalies around the Tharsis Montes and Olympus Mons argues for strong, localized heating, as would be expected at volcanic centers. We show that end-member models for progressive thermal demagnetization of a Noachian magnetized crustal layer are consistent with the anomaly amplitude distributions. We integrate the magnetic field observations with constraints from tectonics, gravity, and topography, and present a revised scenario for the evolution of the Tharsis region.
Tópico(s): Geology and Paleoclimatology Research
2005 - Elsevier BV | Earth and Planetary Science Letters
P. J. McGovern, Sean C. Solomon, David E. Smith, M. T. Zuber, M. Simons, M. A. Wieczorek, R. J. Phillips, G. A. Neumann, O. Aharonson, J. W. Head,
... required to explain the observed admittances for the Tharsis Montes or Olympus Mons volcanoes when this correction is ...
Tópico(s): Space Science and Extraterrestrial Life
2002 - American Geophysical Union | Journal of Geophysical Research Atmospheres
Bernard Bonin, Jean Bébien, Philippe Masson,
... Valles Marineris and the peripheral scarps of the Tharsis Montes giant volcanoes suggest the eruption of possibly felsic ...
Tópico(s): Geological and Geochemical Analysis
2002 - Elsevier BV | Gondwana Research
... fractures. These shields are different from the younger Tharsis Montes shields only in terms of the volume of ...
Tópico(s): Paleontology and Stratigraphy of Fossils
1994 - Elsevier BV | Icarus