Magnetic anomalies, layered intrusions and Mars
نویسندگان
چکیده
منابع مشابه
Magnetic Anomalies within the Elliptical Borealis Basin of Mars
Introduction: The single impact hypothesis for the formation of the Martian hemispheric dichotomy boundary has recently been revived with the advent of hydrodynamic simulations that show that the planet could sustain such an event [1, 2]. For additional evidence , it has been proposed that the shape of dichot-omy boundary is elliptical [3]. This proposed boundary shape is based on carefully cho...
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Introduct ion: Maps of the martian crustal magnetic field over the strongly magnetized Terra Sirenum region near the 180 meridian in the Southern Hemisphere show extensive east-west trending features in the radial and north components. These features have previously been attributed to quasi-parallel bands of magnetized crust similar to, but much larger in scale, than those associated with sea f...
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The nature of strong martian crustal field sources is investigated by mapping and modeling of Mars Global Surveyor magnetometer data near Apollinaris Patera, a previously proposed volcanic source, supplemented by large-scale correlative studies. Regional mapping yields evidence for positive correlations of orbital anomalies with both Apollinaris Patera and Lucus Planum, a nearby probable extrus...
متن کاملDensity of Mars' south polar layered deposits.
Both poles of Mars are hidden beneath caps of layered ice. We calculated the density of the south polar layered deposits by combining the gravity field obtained from initial results of radio tracking of the Mars Reconnaissance Orbiter with existing surface topography from the Mars Orbiter Laser Altimeter on the Mars Global Surveyor spacecraft and basal topography from the Mars Advanced Radar fo...
متن کاملGeologic Evolution of Mars’ North Polar Layered Deposits and Related Materials from Mars Odyssey THEMIS
Planetary geodynamo are driven bythermal or compositional convection in the core. Marsis thought to have possessed a geodynamo whichceased ~0.5 Gyr after the formation of the planet. Apossible, but ad hoc, explanation for this behavior is isan early episode of plate tectonics, which drove coreconvection by rapid cooling of the mantle. In this pa-per we examine an alt...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2004
ISSN: 0094-8276
DOI: 10.1029/2004gl020640