Results 91 to 100 of about 13,545 (201)

A Motivating Exploration on Lunar Craters and Low-Energy Dynamics in the Earth -- Moon System

open access: yes, 2010
It is known that most of the craters on the surface of the Moon were created by the collision of minor bodies of the Solar System. Main Belt Asteroids, which can approach the terrestrial planets as a consequence of different types of resonance, are ...
B.J. Gladman   +21 more
core   +3 more sources

Investigations of Martian history [PDF]

open access: yes
Geologic and stratigraphic analyses of Martian channels were accomplished using Mariner frames of high resolution. Crater counts were made to determine which forms had the least relative age.
Hartmann, W. K.
core   +1 more source

Melt production in large-scale impact events: Implications and observations at terrestrial craters [PDF]

open access: yes
The volume of impact melt relative to the volume of the transient cavity increases with the size of the impact event. Here, we use the impact of chondrite into granite at 15, 25, and 50 km s(sup -1) to model impact-melt volumes at terrestrial craters in ...
Cintala, Mark J., Grieve, Richard A. F.
core   +1 more source

Workshop on Moon in Transition: Apollo 14, KREEP, and Evolved Lunar Rocks [PDF]

open access: yes
Lunar rocks provide material for analyzing lunar history and now new evaluation procedures are available for discovering new information from the Fra Mauro highlands rocks, which are different from any other lunar samples.
Taylor, G. J., Warren, P. H.
core   +1 more source

Voluminous lava flows at Oldoinyo Lengai in 2006: chronology of events and insights into the shallow magmatic system [PDF]

open access: yes, 2008
BELTON, F   +8 more
core   +2 more sources

Crater Size-Frequency Distribution (CSFD) and Chronology of Vesta — Crater Counts Matching HED Ages

open access: yes, 2012
We compare crater size-frequency distributions and chronologies between the Moon, Vesta, and smaller asteroids. The derived crater retention ages on Vesta match with high probable K/Ar-Ar ages of HED meteorites.
Schmedemann, N.   +12 more
openaire   +2 more sources

Prospects for Chronological Studies of Martian Rocks and Soils [PDF]

open access: yes
Chronological information about Martian processes comes from two sources: Crater-frequency studies and laboratory studies of Martian meteorites. Each has limitations that could be overcome by studies of returned Martian rocks and soils.
Nyquist, L. E., Reese, Y. D., Shih, C-Y.
core   +1 more source

Proceedings of the MEVTV Workshop on The Evolution of Magma Bodies on Mars [PDF]

open access: yes
The workshop focused on many of the diverse approaches related to the evolution of magma bodies on Mars that have been pursued during the course of the Mars Evolution of Volcanism, Tectonism, and Volatiles (MEVTV) Program.
Holloway, J., Mouginis-Mark, P.
core   +1 more source

Iapetus: Tectonic structure and geologic history [PDF]

open access: yes
Many papers have been written about the surface of Iapetus, but most of these have discussed either the nature of the strongly contrasting light and dark materials or the cratering record.
Croft, Steven K.
core   +1 more source

Crustal evolution of the early earth: The role of major impacts [PDF]

open access: yes
The role of major impact basins (such as those which formed on the moon before 4 billion years ago) is examined to determine the effects of such impacts on the early crustal evolution of the earth.
Frey, H.
core   +1 more source

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