An Origin for the Linear Magnetic Anomalies on Mars through Accretion of Terranes: Implications for Dynamo Timing

Fairén, Alberto González; Ruíz, Javier; Anguita, Francisco

doi:10.1006/icar.2002.6942

Cited by 61 publications

(45 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Whether Claritas rise is other than basalt/basaltic andesite is a significant problem to address since it may record an ancient part of Mars' evolution, including hypothesized Earth-like evolutional phases such as plate tectonism (Sleep, 1994), particularly during its embryonic stages of evolution (Connerney et al, 1999;Dohm et al, 2002;Fairén et al, 2002;Connerney et al, 2005;Anguita et al, 2006;Baker et al, 2007).…”

Section: Geologic and Mineralogic Information Of Claritas Risementioning

confidence: 99%

New evidence for a magmatic influence on the origin of Valles Marineris, Mars

Dohm

Williams

Anderson

et al. 2009

Journal of Volcanology and Geothermal Research

View full text Add to dashboard Cite

Section: Geologic and Mineralogic Information Of Claritas Risementioning

confidence: 99%

New evidence for a magmatic influence on the origin of Valles Marineris, Mars

Dohm

Williams

Anderson

et al. 2009

Journal of Volcanology and Geothermal Research

View full text Add to dashboard Cite

“…Several hypotheses have been invoked for its origin, which include either subcrustal erosion resulting from mantle convection (Wise et al, 1979), excavation by one or more large impacts (Wilhelms and Squyres, 1984;Frey et al, 2002), or overturn of unstable cumulates in an initial magma ocean (Hess and Parmentier, 2001). Alternately, the landscape of the northern lowlands may have been the result of sea-floor spreading, linked to plate tectonism (Sleep, 1994), during the Early into Middle Noachian Dohm et al, 2002;Fairén et al, 2002). In fact, although lowlands' basement is old, perhaps dating from the final Early Noachian (Frey et al, 2002), the cratered highlands (except for the northwestern part of Arabia Terra; an area noted by Zuber et al (2000) to be related to the lowlands due to its relatively thin crust) are older indeed (Frey, 2003).…”

Section: Physiographic Settingmentioning

confidence: 99%

“…(4) A possible Early into Middle Noachian martian plate tectonism episode, with convergent plate margins and accretion of terranes (e.g., northwards Terra Cimmeria and Terra Sirenum; Fairén et al, 2002). The proposed plate tectonism for early Mars (first hundreds of millions of years, would greatly modify the topography along Shoreline 1.…”

Section: Physiographic Settingmentioning

confidence: 99%

“…Importantly, it is difficult to determine for sure whether the Claritas rise records incipient TMC development or whether it may be related to magmatic activity independent from TMC. In addition, plate tectonism may have been in operation during the Early into Middle Noachian, surviving the inner dynamo for some tens of millions of years (Fairén et al, 2002). If at least the first pulse of TMC magmatism accompanied plate tectonism, then the northern lowlands' landscape could have resulted from seafloor spreading (lasting from about 4.4-4.3 to approximately 3.9 Gyr; Baker et al, 2002;Dohm et al, 2002); and possible carbonate recycling would have accounted for the reinjection of large amounts of CO 2 into the atmosphere.…”

Section: Noachian To Early Hesperian (Stages 1-3): the First Great Oceanmentioning

confidence: 99%

See 1 more Smart Citation

Episodic flood inundations of the northern plains of Mars

Fairén

Dohm

Baker

et al. 2003

Icarus

169

160

View full text Add to dashboard Cite

Throughout the recorded history of Mars, liquid water has distinctly shaped its landscape, including the prominent circum-Chryse and the northwestern slope valleys outflow channel systems, and the extremely flat northern plains topography at the distal reaches of these outflow channel systems. Paleotopographic reconstructions of the Tharsis magmatic complex reveal the existence of an Europe-sized Noachian drainage basin and subsequent aquifer system in eastern Tharsis. This basin is proposed to have sourced outburst floodwaters that sculpted the outflow channels, and ponded to form various hypothesized oceans, seas, and lakes episodically through time. These floodwaters decreased in volume with time due to inadequate groundwater recharge of the Tharsis aquifer system. Martian topography, as observed from the Mars Orbiter Laser Altimeter, corresponds well to these ancient flood inundations, including the approximated shorelines that have been proposed for the northern plains. Stratigraphy, geomorphology, and topography record at least one great Noachian-Early Hesperian northern plains ocean, a Late Hesperian sea inset within the margin of the high water marks of the previous ocean, and a number of widely distributed minor lakes that may represent a reduced Late Hesperian sea, or ponded waters in the deepest reaches of the northern plains related to minor Tharsis-and Elysium-induced Amazonian flooding.

show abstract

“…Since at least the Late Noachian, the martian surface erosion rate has been significantly lower than that of Earth (Scott et al 1995). Furthermore, subduction related to plate tectonics may have occurred on Mars (Sleep 1994) only during its early phase of evolution (Baker et al 2002a, b;Dohm et al 2002;Fairén et al 2002;Fairén and Dohm 2003). These circumstances should favor the discovery of marine-target impact craters on Mars.…”

Section: Introductionmentioning

confidence: 99%

Marine‐target craters on Mars? An assessment study

Ormö

Dohm

Ferris

et al. 2004

Meteorit & Planetary Scien

View full text Add to dashboard Cite

Marine-target craters on Mars? An assessment studyAbstract-Observations of impact craters on Earth show that a water column at the target strongly influences lithology and morphology of the resultant crater. The degree of influence varies with the target water depth and impactor diameter. Morphological features detectable in satellite imagery include a concentric shape with an inner crater inset within a shallower outer crater, which is cut by gullies excavated by the resurge of water. In this study, we show that if oceans, large seas, and lakes existed on Mars for periods of time, marine-target craters must have formed. We make an assessment of the minimum and maximum amounts of such craters based on published data on water depths, extent, and duration of putative oceans within "contacts 1 and 2," cratering rate during the different oceanic phases, and computer modeling of minimum impactor diameters required to form longlasting craters in the seafloor of the oceans. We also discuss the influence of erosion and sedimentation on the preservation and exposure of the craters.

show abstract

An Origin for the Linear Magnetic Anomalies on Mars through Accretion of Terranes: Implications for Dynamo Timing

Cited by 61 publications

References 18 publications

New evidence for a magmatic influence on the origin of Valles Marineris, Mars

New evidence for a magmatic influence on the origin of Valles Marineris, Mars

Episodic flood inundations of the northern plains of Mars

Marine‐target craters on Mars? An assessment study

Contact Info

Product

Resources

About