Al-Khwarizmi: A New-Found Basin on the Lunar Far Side

  title={Al-Khwarizmi: A New-Found Basin on the Lunar Far Side},
  author={Farouk Kamel El-Baz},
  pages={1173 - 1176}
  • F. El-Baz
  • Published 15 June 1973
  • Physics
  • Science
Apollo 16 and Apollo 17 photographs of the far side of the moon reveal a double-ringed basin 500 kilometers in diameter centered at 1�N, 112�E. The structure is very old and subdued; it is probably Pre-Nectarian in age and appears to have been filled and modified by younger events. The heights of the basin's rings are based on laser altimeter data from Apollo missions 15 through 17; these data suggest a third outer ring, approximately 1000 kilometers in diameter. Laser measurements also… 

Photogeological, Geophysical, and Geochemical Data on the East Side of the Moon

Correlations between Apollo orbital data and geologic data for eight map provinces are reported for a region centered on the east limb of the moon (50 deg N to 50 deg S and 50 deg E to 140 deg E).

Stratigraphy and Chronology of the Moon's Crust

  • Geology, Physics
  • 2007
Lunar Topography Even when viewed from earth, the moon's surface is easily divided into mare and terra (or highland) areas on the basis of albedo. Upon closer scrutiny we find that highland areas are

On the rate of ancient meteoroidal flux: Studies of the pre-mare crater population on the Moon

According to radiometric dating of lunar rocks, meteoroidal bombardment and accompanying cratering on the Moon were intensive in the first 0.7×109 y, the so-calledterra stage. Recently the hypothesis

Lunar basin formation and highland stratigraphy

Multiring impact basins, formed after solidification of the lunar crust, account for most or all premare regional deposits and structures expressed in the lunar landscape and for major topographic

Book-Review - Apollo Over the Moon - a View from Orbit

A selection from some 18 000 metric, panoramic, and other camera views of the Moon will inspire further interest in Apollo photographs to achieve a better understanding of the authors' own planet, its history, and evolution.

Basin-ring spacing on the Moon, Mercury, and Mars

Radial spacing between concentric rings of impact basins that lack central peaks is statistically similar and nonrandom on the Moon, Mercury, and Mars, both inside and outside the main ring. One

Magma genesis in a battered Moon: Effects of basin-forming impacts

Magma genesis in the Moon could have been significantly altered by large impacts if they melted solidified residual liquids and late cumulates from the ‘magma ocean’. Calculations of the heat

Lunar mascon basins - Lava filling, tectonics, and evolution of the lithosphere

The volcanic filling of the lunar maria, the formation of mascons, the tectonic features of the mare regions, and the thermal evolution of the lunar lithosphere are all interlinked. To explore these



Lunar Shape via the Apollo Laser Altimeter

Data from the Apollo 15 and Apollo 16 laser altimeters reveal the first accurate elevation differences between distant features on both sides of the moon. The large far-side depression observed in

Comments on the figure of the moon based on preliminary results from laser altimetry

Range measurements from the orbiting spacecraft to the lunar surface were made during the Apollo 15 mission using a laser altimeter. The measurements were made in a plane inclined at approximately

Lunar Igneous Intrusions

Photographs taken from Apollo 10 and 11 reveal a number of probable igneous intrusions, including three probable dikes that crosscut the wall and floor of an unnamed 75-kilometer crater on the lunar farside, suggesting the plausibility of intrusive igneous activity, in addition to extrusive volcanism, on the moon.

The name "Arabia" was used to designate the basin during the Apollo 17 mission and also in the

    References and Notes l. Before the crater King (5.5'N, 120.5 E) was namedl by the International Astronomical Union (IAU), it was given the number 211: see F. El-Baz

    • Scienzce
    • 1970

    It was later argued that what was interpreted as a mountain range are in reality bright ejecta and rass

    • Soviet Mountains" was coined by Rtussian investigators following interpretations of the Luna 3 photographs
    • 1960