Results 41 to 50 of about 38,084 (153)
Rootless cones on Mars indicating the presence of shallow equatorial ground ice in recent times [PDF]
, 2001 High resolution Mars Orbiter Camera (MOC) images have revealed the existence of clusters of small cones in the Cerberus plains, Marte Valles, and Amazonis Planitia, Mars.
McEwen, A. S. +3 more
core +1 more source
Geophysical Research LettersDeimos, the smaller and outer Martian moon, is a dark, irregularly shaped body whose origin and evolution are still poorly constrained. Its surface is smoother and less cratered than the other moon, Phobos, a difference still unexplained due to limited ...
Y. Shimizu +10 more
doaj +1 more source
Selected Crater and Small Caldera Lakes in Alaska: Characteristics and Hazards
Frontiers in Earth Science, 2022 This study addresses the characteristics, potential hazards, and both eruptive and non-eruptive role of water at selected volcanic crater lakes in Alaska. Crater lakes are an important feature of some stratovolcanoes in Alaska.
Christopher F. Waythomas
doaj +1 more source
A New Martian Crater Chronology: Implications for Jezero Crater [PDF]
The Astronomical Journal, 2021 Abstract Crater chronologies are a fundamental tool to assess the relative and absolute ages of planetary surfaces when direct radiometric dating is not available. Martian crater chronologies are derived from lunar crater spatial densities on terrains with known radiometric ages, and thus they critically depend on the Moon-to-Mars ...
openaire +2 more sources
Mechanical Engineering Journal, 2016 It has been reported that when a high-speed projectile collides with aluminum foam, a unique crater with a narrow entrance and large cavity is formed, shaped like a turnip.
Takanari SAKAI +2 more
doaj +1 more source
Remote SensingImpact craters serve as recorders of lunar evolutionary history, and determining the stratigraphic ages of craters is crucial. However, the age of many craters on the Moon remains undetermined.
Ke Zhang +8 more
doaj +1 more source
Fieldworks at Alaid volcano in 2020, Atlasov island, the Kuriles. Phase 2
Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020 The second phase of field work in 2020 on the Alaid Volcano, located on Atlasov Island in the north of the Kuril Island Arc, was carried out on October 2.
Рашидов В.А. +1 more
doaj +1 more source
Applied Sciences, 2020 To understand and analyze crater damage of rocks under hypervelocity impact, the hypervelocity impact cratering of 15 shots of hemispherical-nosed cylindrical projectiles into granite targets was studied within the impact velocity range of 1.91−3 ...
Xiaofeng Wang +6 more
doaj +1 more source
Guidebook to the geology of Barringer Meteorite Crater, Arizona (a k a Meteor Crater) [PDF]
, 2007 prepared by David A. Kring.Target Sequence--Barringer Meteorite Impact Crater--Shock Metamorphism--Crater Rim Uplift and Crater Wall Collapse--Overturned Rim Sequence--Distribution of Ejecta--Projectile--Trajectory--Energy of Impact--Age of the Crater ...
Kring, David A. (David Allen) +1 more
core
Shock-Induced Damage in Rocks: Application to Impact Cratering [PDF]
, 2006 Shock-induced damage beneath impact craters is studied in this work. Two representative terrestrial rocks, San Marcos granite and Bedford limestone, are chosen as test target.
Ai, Huirong (Anita)
core +1 more source