Cumulate Eucrites: Volatile-Depleted Asuka 881394, Chromium-Loaded EET 87548 and Cumulate Versus Noncumulate Relationships

Details Cumulate Eucrites: Volatile-Depleted Asuka 881394, Chromium-Loaded EET 87548 and Cumulate Versus Noncumulate Relationships Cumulate Eucrites: Volatile-Depleted Asuka 881394, Chromium-Loaded EET 87548 and Cumulate Versus Noncumulate Relationships

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996eiaf.conf...37w&link_type=abstract

Workshop on Evolution of Igneous Asteroids: Focus on Vesta and the HED Meterorites, p. 37

Computer Science

Meteoritic Composition, Pyroxenes, Isotope Ratios, Cosmochemistry, Textures, Meteoroids, Grain Size, Chromites

Scientific paper

Among several eucrites we have been studying by our usual methods, two stand out as extraordinary cumulates: Asuka 881394, a volatile-depleted cumulate eucrite, and EET 87548, an extraordinarily pyroxene- and chromite-rich cumulate eucrite. The medium-grained granular texture of Asuka 881394 is possibly altered from the original igneous texture, and difficult to categorize in terms of cumulate vs. noncumulate origin. Based on low incompatible-element contents and (+) Eu anomaly (Sm = 0.29 micro gram per gram, Eu - 0.27 micro gram/g [I]) and high mg# (56.6 mol%), we infer it is a cumulate. Even so, its extremely low concentrations of volatile elements seem remarkable. The Ga/Al ratio (0.010 x CI) is also exceptionally low. This sample tends to blur the distinction between eucrites and angrites. However, many significant differences vs. angrites remain. For example, the Fe/Mn ratio (34) is typical for eucrites, and only 0.4 times the lowest Fe/Mn among angrites.

Affiliated with

Also associated with

No associations

Rating

Cumulate Eucrites: Volatile-Depleted Asuka 881394, Chromium-Loaded EET 87548 and Cumulate Versus Noncumulate Relationships 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 Cumulate Eucrites: Volatile-Depleted Asuka 881394, Chromium-Loaded EET 87548 and Cumulate Versus Noncumulate Relationships, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cumulate Eucrites: Volatile-Depleted Asuka 881394, Chromium-Loaded EET 87548 and Cumulate Versus Noncumulate Relationships will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-970379