Pit chain

Citation: K.L. Tanaka, J.A. Skinner, Jr., J.M. Dohm, R.P. Irwin, III, E.J. Kolb, C.M. Fortezzo,Thomas Platz, G.G. Michael, and T.M. Hare, 2014, Geologic Map of Mars, Scale 1:20,000,000, U.S. Geological Survey Scientific Investigations Map SIM 3292.

Shapefile (detail of original database)

pitchain

Outflow channel

Citation: K.L. Tanaka, J.A. Skinner, Jr., J.M. Dohm, R.P. Irwin, III, E.J. Kolb, C.M. Fortezzo,Thomas Platz, G.G. Michael, and T.M. Hare, 2014, Geologic Map of Mars, Scale 1:20,000,000, U.S. Geological Survey Scientific Investigations Map SIM 3292.

Shapefile (detail of original database)

outflowchannel

Calderas

Shown: Caldera rims

Citation: K.L. Tanaka, J.A. Skinner, Jr., J.M. Dohm, R.P. Irwin, III, E.J. Kolb, C.M. Fortezzo,Thomas Platz, G.G. Michael, and T.M. Hare, 2014, Geologic Map of Mars, Scale 1:20,000,000, U.S. Geological Survey Scientific Investigations Map SIM 3292.

Shapefile (detail of original geologic map database)

caldera


Merged database of calderas

Shown: Caldera floors redrawn based on Robbins et al. 2011, Figs 2 and 3. and approximation from Williams et al. 2011

Shapefile (polygons)

Excel file (center points)

Citation:

Robbins SJ, Di Achille G, Hynek BM (2011) The volcanic history of Mars: high-resolution crater-based studies of the calderas of 20 volcanoes. Icarus 211:1179–1203. doi:10.1016/j.icarus.2010.11.012

K.L. Tanaka, J.A. Skinner, Jr., J.M. Dohm, R.P. Irwin, III, E.J. Kolb, C.M. Fortezzo,Thomas Platz, G.G. Michael, and T.M. Hare, 2014, Geologic Map of Mars, Scale 1:20,000,000, U.S. Geological Survey Scientific Investigations Map SIM 3292.

Williams DA et al. (2011) The Circum-Hellas Volcanic Province, Mars: Overview. Planetary and Space Science 57 (2009) 895–916

calderas3.jpg

Craters with “sandbars”

Citation Robbins, S.J., and B.M. Hynek (2012). A New Global Database of Mars Impact Craters ≥1 km: 1. Database Creation, Properties, and Parameters. Journal of Geophysical Research – Planets, 117, E05004. doi: 10.1029/2011JE003966.

NOTE This is a small subset of the original Robbins and Hynek crater catalog, containing information on the location of craters with “sandbars”, lee side, streamlined deposits, formed by erosion or deposition during flood events

Original definition: “… even if there is no ejecta but the crater is at the head of what on Earth would be considered a sandbar, the term “Sandbar” is placed in this column of morphology”.

Excel download

sandbars

Global Catalog of Martian Impact Craters, Complete to 1.0-km in Diameter

Citation: Robbins, S.J., and B.M. Hynek (2012). A New Global Database of Mars Impact Craters ≥1 km: 1. Database Creation, Properties, and Parameters. Journal of Geophysical Research – Planets, 117, E05004. doi: 10.1029/2011JE003966.

Mars Crater Database Search

Download this database from http://craters.sjrdesign.net/

This database includes qualitative metadata such as crater morphology, crater wall features (terrace, gully, bench), crater floor features (e.g., dune, landslide, fracture), ejecta morphology (number of layers, butterfly, pin-cushion, rectangular, small crown, splash, bumblebee), presence of “sandbar” (streamlined deposit), degradation state.

impactcraters