Distribution and variation of plagioclase compositions on Mars

Details Distribution and variation of plagioclase compositions on Mars Distribution and variation of plagioclase compositions on Mars

Sep 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jgre..11509004m&link_type=abstract

Journal of Geophysical Research, Volume 115, Issue E9, CiteID E09004

Mathematics

Logic

Planetary Sciences: Solar System Objects: Mars, Planetary Sciences: Solid Surface Planets: Surface Materials And Properties, Planetary Sciences: Solid Surface Planets: Remote Sensing

Scientific paper

This study presents the first global compositional maps of plagioclase, the most abundant mineral in the Martian crust. Linear deconvolutions of spectra from the Thermal Emission Spectrometer (TES) allowed calculation of average plagioclase compositions for dust-free areas on Mars ±60° of the equator (approximately 40% of the surface for this range of latitudes). As a whole, surface type 1 and 2 terrains are virtually identical with respect to their average plagioclase compositions, ˜An60. The majority of TES observations were modeled as labradorite and bytownite (between An50 and An90), while fewer observations were modeled with other plagioclase compositions that did not correlate with specific geologic terrains. The lack of diversity in average plagioclase compositions across multiple geologic units may represent an upper Martian crust with minimal variation in plagioclase compositions. Alternatively, aeolian, fluvial, and/or impact activity may have redistributed heterogeneous crustal material forming a relatively homogeneous, global surface layer.

Affiliated with

Also associated with

No associations

Rating

Distribution and variation of plagioclase compositions on Mars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Distribution and variation of plagioclase compositions on Mars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distribution and variation of plagioclase compositions on Mars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1498775