ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Hits per page

hit 1 - 1 | 1 hit

Sorting

Unknown

Chemical Alteration on Mars Indicated by the Iron-Manganese Ratio (2010)

Morris, R. V. ; Mittlefehldt, D. W. ; Yen, A. S. ; [et al.]

In: CASI

add to mindlist on the mindlist

Details

Publication Date: 2019-08-13

Description: The Alpha Particle X-ray Spectrometers (APXS) onboard the Mars Exploration Rovers (MER) have measured the chemical compositions of over 400 samples on the surface of Mars. Fe and Mn are among the elements which are well established by this instrumentation. Fe2+ and Mn2+ have nearly the same ionic radii and distribute similarly in primary igneous rocks, maintaining a consistent Fe:Mn ratio. Upon exposure to an oxidative weathering environment, Fe 3+ and Mn4+ are commonly formed, and elemental fractionation can occur. Thus, altered samples will typically exhibit a Fe:Mn ratio different from precursor materials.

Keywords: Space Sciences (General)

Type: JSC-CN-19548 , Lunar and Planetary Science Conference; Mar 01, 2010 - Mar 05, 2010; The Woodlands, TX; United States

Format: application/pdf

Permalink

	Location	Call Number	Expected	Availability

Others were also interested in ...

NASA TECHNICAL REPORTS

S·F·X

Overview

hit 1 - 1 | 1 hit