Author pages are created from data sourced from our academic publisher partnerships and public sources.
- Publications
- Influence
An Intense Terminal Epoch of Widespread Fluvial Activity on Early Mars: 2. Increased Runoff and Paleolake Development
- R. Irwin, A. D. Howard, R. Craddock, J. Moore
- Geology
- 1 December 2005
[1] To explain the much higher denudation rates and valley network development on early Mars (>∼3.6 Gyr ago), most investigators have invoked either steady state warm/wet (Earthlike) or cold/dry… Expand
An intense terminal epoch of widespread fluvial activity on early Mars: 1. Valley network incision and associated deposits
- A. D. Howard, J. Moore, R. Irwin
- Geology
- 1 December 2005
[1] We present evidence that a final epoch of widespread fluvial erosion and deposition in the cratered highlands during the latest Noachian or early to mid-Hesperian was characterized by integration… Expand
Martian Layered Fluvial Deposits: Implications for Noachian Climate Scenarios
- J. Moore, A. Howard, W. Dietrich, P. Schenk
- Geology
- 1 December 2003
[1] Fluvial deposits in a basin north of Holden crater exhibiting a sinuous, anabranching pattern are of deltaic or fan origin. Channel width and meander wavelength indicate persistent flow… Expand
Long-term precipitation and late-stage valley network formation: Landform simulations of Parana Basin, Mars
- C. Barnhart, A. Howard, J. Moore
- Geology
- 2009
[1] We use a computer landform evolution model to show that Noachian-Hesperian-aged, late-stage valley network formation required numerous and repeated moderate flood events rather than one or a few… Expand
Large alluvial fans on Mars
[1] Several dozen distinct alluvial fans, 10 to ∼40 km long downslope, have been observed in highlands craters. Within a search region between 0° and 30°S, alluvial fan-containing craters were found… Expand
The influence of thermal inertia on temperatures and frost stability on Triton
- J. Spencer, J. Moore
- Geology
- 1 October 1992
Abstract Seasonal subsurface heat conduction can have a large influence on Triton's N2 frost distribution. Increasing surface thermal inertia reduces the thickness and extent of seasonal N2 frosts.… Expand
The nature of coarse-grained crystalline hematite and its implications for the early environment of Mars
- D. Catling, J. Moore
- Geology
- 1 October 2003
Abstract The Thermal Emission Spectrometer (TES) on the Mars Global Surveyor spacecraft has detected deposits of coarse-grained, gray crystalline hematite in Sinus Meridiani, Aram Chaos, and Vallis… Expand
The Phanerozoic Impact Cratering Rate: Evidence from the Farside of the Moon
- A. McEwen, J. Moore, E. Shoemaker
- Geology
- 25 April 1997
The relatively recent (<1 b.y.) flux of asteroids and comets forming large craters on the Earth and Moon may be accurately recorded by craters with bright rays on the Moon's farside. Many previously… Expand
Hellas as a Possible Site of Ancient Ice-Covered Lakes on Mars
- J. Moore, D. E. Wilhelms
- Geology
- 7 August 2013
Abstract Based on topographic, morphologic, and stratigraphic evidence, we propose that ancient water-laid sediment is the dominant component of deposits within Hellas Planitia, Mars.… Expand