Zobrazeno 1 - 10
of 67
pro vyhledávání: '"B. Ray Hawke"'
Autor:
Julie Stopar, Bruce A. Campbell, C. A. Peterson, Thomas A. Giguere, David T. Blewett, David Trang, Samuel J. Lawrence, J. Olaf Gustafson, Jeffrey J. Gillis-Davis, Myriam Lemelin, Cassandra R. Runyon, B. Ray Hawke, Joseph M. Boyce, Lisa R. Gaddis
Publikováno v:
Journal of Geophysical Research: Planets. 125
Autor:
Jeffrey J. Gillis-Davis, Myriam Lemelin, David Trang, Joshua T.S. Cahill, B. Ray Hawke, Thomas A. Giguere
Publikováno v:
Icarus. 283:232-253
Lunar localized pyroclastic deposits are low albedo deposits with areas 2 . These deposits were difficult to study before the turn of the millennium because of the lack of available high spatial-resolution data. With the launch of the Lunar Reconnais
Autor:
Mark S. Robinson, Thomas A. Giguere, Samuel J. Lawrence, R. N. Clegg-Watkins, B. Ray Hawke, David Trang, Joseph M. Boyce, Peter J. Mouginis-Mark
Publikováno v:
Icarus. 283:254-267
Mons Hansteen is a relatively high-albedo, well-known lunar ``red spot'' located on the southern margin of Oceanus Procellarum (2.3°S, 50.2°W). It is an arrowhead-shaped (∼ 25 km on a side), two-layer mesa with a small cone-shaped massif on its n
Publikováno v:
Icarus. 278:62-78
Lunar concentric craters are a unique class of impact craters because the interior of the craters contains a concentric ridge, but their formation mechanism is unknown. In order to determine the origin of concentric craters, we examined multiple work
Autor:
David A. Paige, J. W. Ashley, C. H. van der Bogert, Benjamin T. Greenhagen, Mark S. Robinson, Thomas A. Giguere, B. Ray Hawke, Harald Hiesinger, Timothy D. Glotch, Bradley L. Jolliff, Samuel J. Lawrence, Julie Stopar
Publikováno v:
Icarus. 273:248-261
Lunar surface volcanic processes are dominated by mare-producing basaltic extrusions. However, spectral anomalies, landform morphology, and granitic or rhyolitic components found in the Apollo sample suites indicate limited occurrences of non-mare, g
Autor:
Julie Stopar, Brett W. Denevi, B. Ray Hawke, Mark S. Robinson, Steven D. Koeber, Thomas A. Giguere
Publikováno v:
Icarus. 243:337-357
Using observations from the Lunar Reconnaissance Orbiter Camera (LROC), we assess the frequency and occurrence of impact melt at simple craters less than 5 km in diameter. Nine-hundred-and-fifty fresh, randomly distributed impact craters were identif
A large spectral survey of small lunar craters: Implications for the composition of the lunar mantle
Autor:
H. Jay Melosh, Myriam Lemelin, B. Ray Hawke, Jessica A. Norman, Sarah T. Crites, Paul G. Lucey, G. Jeffrey Taylor
Publikováno v:
American Mineralogist. 99:2251-2257
A global spectral survey of 4506 immature craters with diameters
Publikováno v:
Journal of Geophysical Research: Planets. 119:976-997
We investigate the effects of space weathering at ultraviolet wavelengths using a near-global seven-band (321–689 nm) mosaic from the Lunar Reconnaissance Orbiter Camera (LROC) Wide Angle Camera (WAC). We confirm that for moderate- to high-iron com
Autor:
Thomas A. Giguere, Samuel J. Lawrence, Joshua T.S. Cahill, Benjamin T. Greenhagen, Brett W. Denevi, Mark S. Robinson, D. Benjamin J. Bussey, W. Brent Garry, Paul Spudis, Timothy D. Glotch, Bradley L. Jolliff, B. Ray Hawke, Joshua L. Bandfield, Julie Stopar
Publikováno v:
Journal of Geophysical Research: Planets. 118:615-634
[1] The volcanic domes, cones, sinuous rilles, and pyroclastic deposits of the Marius Hills region of the Moon (~13.4°N, 304.6°E) represent a significant episode of magmatic activity at or near the lunar surface that is still poorly understood. Com
Autor:
C. H. van der Bogert, Emerson Speyerer, A. K. Boyd, Mark S. Robinson, Harald Hiesinger, R. V. Wagner, J. W. Ashley, B. Ray Hawke
Publikováno v:
Planetary and Space Science. 69:18-27
Typical flow thicknesses of lunar mare basalts were not well constrained in the past, because as craters and rilles age, downslope movement of loose material tends to mix and bury stratigraphy, obscuring the three dimensional nature of the maria. New