Results 141 to 150 of about 8,311,841 (367)

Crater Morphometry and Scaling in Coarse, Rubble-Like Targets: Insights from Impact Experiments [PDF]

open access: yes
Spacecraft images reveal that the asteroids Itokawa, Ryugu, and Bennu are covered with coarse, boulder-rich material [13]. Impactors that collide with these bodies encounter a target with extreme physical heterogeneity.
Barnouin, O. S.   +8 more
core   +1 more source

Organic geochemistry of the Boltysh impact crater, Ukraine [PDF]

open access: yes, 2009
The Boltysh crater has been know for several decades and was originally drilled in the 1960s - 1980s in a study of economic oil shale deposits. Unfortunately, the cores were not curated and have been lost.
Gilmour, Iain   +3 more
core  

Melt production in large-scale impact events: Calculations of impact-melt volumes and crater scaling [PDF]

open access: yes
Along with an apparent convergence in estimates of impact-melt volumes produced during planetary impact events, intensive efforts at deriving scaling relationships for crater dimensions have also yielded results.
Cintala, Mark J., Grieve, Richard A. F.
core   +1 more source

MAPPING LANDSLIDES IN LUNAR IMPACT CRATERS USING CHEBYSHEV POLYNOMIALS AND DEM’S [PDF]

open access: diamond, 2016
Vasil Yordanov   +5 more
openalex   +1 more source

The morphosedimentary record of glacial to postglacial environmental changes in West Wiyâshâkimî impact crater lake and adjacent areas, northern Québec, Canada

open access: yesBoreas, EarlyView.
Crater lakes in core regions of former ice sheets have the potential to preserve long‐term sedimentary archives that are otherwise rare in glaciated landscapes due to pervasive glacial erosion. Lake Wiyâshâkimî, an impact crater lake located in the inner core of the Québec‐Labrador Dome of the Laurentide Ice Sheet, provides a rare example of such a ...
Etienne Brouard, Patrick Lajeunesse
wiley   +1 more source

Stability of granular media impacts morphological characteristics under different impact conditions

open access: yesOpen Astronomy
In planetary surfaces, oblique impact events are commonplace, and their study holds significant importance for understanding planetary impact processes and aiding in the design of landers and impactors.
Wang Yifeng   +3 more
doaj   +1 more source

The detailed characterization of Martian impact craters from the 1/16 degree MOLA global topography grid [PDF]

open access: yes, 2001
We describe a new project to obtain a global characterisation of Martian impact crater morphology from the 1/16 degree MOLA topography dataset.
McBride, N., Wallis, D.
core  

Out in the cold? A review of Early Middle Palaeolithic settlements in northern Central Europe, age data and geological preconditions for site formation and preservation

open access: yesBoreas, EarlyView.
The characteristics of settlement of Neanderthals in northern Central Europe during the earlier phases of the Middle Palaeolithic (Marine Isotope Stage 8–6) have been a matter of debate for decades, specifically regarding the population dynamics at such latitudes during the coldest phases. In this paper, we review the known archaeological record of the
Gianpiero Di Maida   +5 more
wiley   +1 more source

Morphology and distribution of lakes under the Laurentide Ice Sheet: implications for ice flow dynamics

open access: yesBoreas, EarlyView.
This study examines the distribution and morphology of lakes under the Laurentide Ice Sheet (LIS) to investigate relationships with ice flow velocity, bedrock and basal thermal regime. Palaeo‐ice streams and lobes were important components of the LIS, and properties of lakes in those regions are quantified at high resolution.
Sarah M. Principato, Carissa M. Mobley
wiley   +1 more source

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